Ricoh Taurus-C1a Technical Bulletin
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Ricoh Taurus-C1a Technical Bulletin

Ricoh Taurus-C1a Technical Bulletin

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Table of Contents

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Reissued: 21-Aug-14
Model: Taurus-C1a/C1b
RTB Reissue
The items in bold italics have been corrected or added.
Subject:
Firmware Release Note: OpePanel.EXP
From:
1st PP Tech Service Sect., PP Tech Service Dept.
Classification:
This RTB has been issued to announce the firmware release information for the
OpePanel.EXP.
US Models
Version
Program No.
1.12
1.11
1.05
1.04
EU Models
Version
Program No.
1.12
1.11
1.05
1.04
CHN Models
Version
Program No.
1.12
1.11
1.06
Note: Definition of Availability of RFU via @Remote
"Available": The firmware can be updated via RFU or SD card.
"Not available": The firmware can only be updated via SD card.
echnical
T
Troubleshooting
Mechanical
Paper path
Product Safety
D0746885D
D0746885C
December 2012 production
D0746885B
D0746885A
D0746886D
D0746886C
December 2012 production
D0746886B
D0746886A
D0746887B
D0746887A
December 2012 production
D0746887
ulletin
B
Date: 20-Jun-11
Part information
Electrical
Transmit/receive
Other (Firmware)
Effective Date
August 2014 production
June 2011 production
1st Mass production
Effective Date
August 2014 production
June 2011 production
1st Mass production
Effective Date
August 2014 production
April 2012 production
No.: RD074001d
Prepared by:
S. Sasaki
Action required
Service manual revision
Retrofit information
Tier 2
Availability of RFU
Not available
Not available
Not available
Not available
Availability of RFU
Not available
Not available
Not available
Not available
Availability of RFU
Not available
Not available
Not available
PAGE: 1/5

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  • Page 1 PAGE: 1/5 Reissued: 21-Aug-14 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074001d RTB Reissue The items in bold italics have been corrected or added. Subject: Prepared by: Firmware Release Note: OpePanel.EXP S. Sasaki From: 1st PP Tech Service Sect., PP Tech Service Dept.
  • Page 2 PAGE: 2/5 Reissued: 21-Aug-14 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074001d US Models Version Modified Points or Symptom Corrected 1.12 Specification Change SP1151-013 (Pressure Setting: Pressure Position 3) is available in the Advanced Setting for Skilled Operators (#0705). This sets the length of time pressure is increased on the fusing roller by the pressure roller for printing Envelopes.
  • Page 3 PAGE: 3/5 Reissued: 21-Aug-14 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074001d Web Support 1.05 D0745777B Language 1.02 D0746890A OpePanel_USA 1.05 D0746885B Opepanel_EUR 1.05 D0746886B System 1.05 D0745773D [Fiery Server] System Software Version 1.1 User Software Version 1.1 1.04 1st Mass production...
  • Page 4 PAGE: 4/5 Reissued: 21-Aug-14 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074001d Buffer Pass Unit Type 5010 Trimmer Unit TR5040 Cover Interposer Tray CI5020 High Capacity Stacker SK5020 Ring Binder RB5010 Please make sure that ALL versions listed below are updated concurrently.
  • Page 5 PAGE: 5/5 Reissued: 21-Aug-14 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074001d Version Modified Points or Symptom Corrected 45: Txt Ppr: Ppr Trns Voltage: B&W: Side 2 46: Txt Ppr: Paper Trnsf Voltage: FC: Side 1 47: Txt Ppr: Paper Trnsf Voltage: FC: Side 2...
  • Page 6 echnical ulletin PAGE: 1/2 Reissued: 22-Aug-14 Model: Taurus-C1 Date: 14-Jun-11 No.: RD074003c RTB Reissue The items in bold italics have been corrected or added. Subject: Prepared by: Firmware Release Note: Language Install S. Sasaki From: 1st PP Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 7 echnical ulletin PAGE: 2/2 Reissued: 22-Aug-14 Model: Taurus-C1 Date: 14-Jun-11 No.: RD074003c Version Modified Points or Symptom Corrected 46: Txt Ppr: Paper Trnsf Voltage: FC: Side 1 47: Txt Ppr: Paper Trnsf Voltage: FC: Side 2 48: Txt Ppr: Ppr Trns Isolatn Voltag: Side 1 49: Txt Ppr: Ppr Trns Isolatn Voltag: Side 2 1.02 Symptoms Corrected:...
  • Page 8 PAGE: 1/7 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b RTB Reissue The items in bold italics have been corrected or added. Subject: Prepared by: Firmware Release Note: Engine A. Tajima From: 1st PP Tech Service Sect., PP Tech Service Dept.
  • Page 9 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b Version Modified Points or Symptom Corrected enabling correct count up of the PM counters even if the cleaning web is not replaced together with the fusing unit at customer sites where mutliple fusing units are used.
  • Page 10 PAGE: 3/7 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b Version Modified Points or Symptom Corrected December 2012, the AC power supply unit must be installed (See RTB# RD074097). Firmware Version Engine 1.63.04 or newer System/Copy 1.11 or newer OpePanel.EXP...
  • Page 11 PAGE: 4/7 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b Version Modified Points or Symptom Corrected Firmware Version Program No. Engine 1.58.04 or newer D0745404E or newer System/Copy 1.07 or newer D0745773F or newer Websys 1.06 or newer...
  • Page 12 PAGE: 5/7 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b Version Modified Points or Symptom Corrected Symptom Corrected; 1. Black registration is misaligned when MUSIC is processed if the subscan magnification correction has been adjusted. If SC occur when paper feeds in Ring-Binder or Multi-Folding Unit, the machine stops until the power is cycled.
  • Page 13 PAGE: 6/7 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b Version Modified Points or Symptom Corrected Proceed to Step1-2 if the current version is V1.0. Update is not required if the current version is V1.1 or newer. Step1-2. Do the Fiery System Installation using the following versions.
  • Page 14 PAGE: 7/7 Reissued: 20-Apr-15 Model: Date: 20-Jun-11 No.: RD074004r Taurus-C1a/C1b Version Modified Points or Symptom Corrected Special Mode Coefficient2 SP3-533- Interrupt ProCon :Set Interval: Set: BW SP3-533- Interrupt ProCon :Set Interval: Set: FC Step2-5．Exit the SP mode, and power cycle the machine to complete the procedure.
  • Page 15 Other (Firmware) Tier 2 This RTB has been issued to announce the release of the data files (xxx.mqp) and the Media List used for the Paper Library on the Taurus-C1a/C1b. MQP files and Media Lists are confidential information. Version Program No.
  • Page 16 PAGE: 2/4 Reissued: 21-Aug-14 Model: Date: No.: 20-Jun-11 RD074005s Taurus-C1a/C1b Version Modified Points or Symptom Corrected 19.00 Add 7 Media. (RE1915, RE1958, RE2035, RE2036, RE2113, RE2114, RE2127) RE1884, RE1886, RE1887, RE1889(4 media): Correct Production Name RE1884, RE1886, RE1887, RE1888, RE1889(5 media): Add "Notes"...
  • Page 17 About the MQP file The MQP file only contains data for media ranked ‘A’ and ‘B’ in overall evaluation. Installing the MQP file into the Taurus-C1a/C1b will enable application of the media from the Paper Library.
  • Page 18 PAGE: 4/4 Reissued: 21-Aug-14 Model: Date: No.: 20-Jun-11 RD074005s Taurus-C1a/C1b Description Rank Better than the product Spec.(Only Image Quality) Result is good without any remarks. There is remark for use. Customer should know the remark for use. Not suggested for use...
  • Page 19 PAGE: 1/1 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074006 Subject: Prepared by: Firmware Release Note: ADF_MCKINLEY_B K.Tsutsui From: PPBG Service Planning Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 20 PAGE: 1/1 Reissued: 14-Sep-11 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.:RD074008a Subject: Prepared by: Firmware Release Note: Network DocBox N.Iida From: PPBG Service Planning Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 21 echnical ulletin PAGE: 1/14 Reissued:04-Jul-11 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015b RTB Reissue Revision of corrections 2, 5, 6, and 7. Subject: Field Service Manual Correction Prepared by: K. Tsutsui From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical...
  • Page 22 echnical ulletin PAGE: 2/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 1: 6mm Screws to Fix the Operation Panel Installation > Main Machine D074/D075 > Accessories D074/D075 Pan head M4x6 screws (Q’ty: 4) was added to the diagram below. Add: M4x6 screw (x4) Pan head M4x6 screws (Q’ty: 4) was added to the list of accessories.
  • Page 23 echnical ulletin PAGE: 3/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a The 4 screws holding the back of the operation panel should be the pan head screws (6mm), not the hexagonal screws (8mm). IMPORTANT: Screws longer than 6mm could damage the PCB INCORRECT Hexagonal screws;...
  • Page 24 echnical ulletin PAGE: 4/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 2: Deleting the Developer Installing Procedure Installation > Main Machine D074/D075 > Installation: Power On > The Taurus was originally planned to be delivered from the factory with all 4 PCDUs empty;...
  • Page 25 echnical ulletin PAGE: 5/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a The following table is an excerpt from the reference table describing the SP codes and the corresponding PM parts in the section "Preventive Maintenance > PM Tables for Main Machines >...
  • Page 26 echnical ulletin PAGE: 6/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Summary of correction 2 Please apply the procedure indicated in red when installing a new unit, and apply procedure in blue when replacing the developer.
  • Page 27 echnical ulletin PAGE: 7/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 3: Notes on Setting the PCDU Replacement and Adjustment > Common Procedures > Removing PCDUs Replacement and Adjustment > Photoconductor Development Unit(PCDU) The following instruction was added. Please note that this instruction will apply to procedures involving replacements of any of the PCDU components.
  • Page 28 echnical ulletin PAGE: 8/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 4: Deletion of Description on “Sponge Seals” Replacement and Adjustments > Photoconductor Development Unit (PCDU) > Drum Cleaning Blade Replacement and Adjustments > Photoconductor Development Unit (PCDU) > Drum Lubrication Blade The following description was deleted from the above 2 sections in the service manual.
  • Page 29 echnical ulletin PAGE: 9/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 5: Revised “After Replacement” Procedure for ITB Lubrication Blade Please ignore the “After Replacement” Procedure for ITB Lubrication Blade as described in the FSM and use the following procedure instead: Replacement and Adjustments >...
  • Page 30 echnical ulletin PAGE: 10/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 6: Revised “After Transfer Belt Replacement” Procedure Please ignore the “After Transfer Belt Replacement” Procedure for ITB Lubrication Blade as described in the FSM and use the following procedure instead: Replacement and Adjustments >...
  • Page 31 echnical ulletin PAGE: 11/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 7: Added Missing Descriptions in SC Tables Troubleshooting > SC Tables Descriptions in have been added and corrected for the following SC tables: SC260 Laser Thermistor Error (C/K) SC262 Laser Thermistor Error (Y/M) One of the following occurred:...
  • Page 32 echnical ulletin PAGE: 12/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 8: Additional Maintenance Required for the Drums Drums must always be coated with the lubricant (p/n B1329700 described in “Special Tools and Lubricants”) after doing cleaning maintenance or troubleshooting image quality problems.
  • Page 33 echnical ulletin PAGE: 13/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a Correction 9: Notes on Installing the Decurler Unit Installation > Decurler Unit Notes on handling the Decurler Unit have changed in accordance with the attachment of the mylars to the Decurler Unit entrance gate. Bracket [D] must also be removed in order to install the Decurler Unit.
  • Page 34 echnical ulletin PAGE: 14/14 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074015a - Current Description - - Revised Description -...
  • Page 35 echnical ulletin PAGE: 1/2 Model: Date: No.: Pro C651EX/Pro C751EX/ Pro C751 7-July-11 RD074016 Subject: Prepared by: Manual Correction T. Komori (Replacement Guide:TCRU(ORU)) From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 36 echnical ulletin PAGE: 2/2 Model: Date: No.: Pro C651EX/Pro C751EX/ Pro C751 7-July-11 RD074016 Steps in were changed as follows: Correction 1. Mount the cleaning unit for the intermediate transfer belt (A) on its rails (B), and then carefully push it in until it can go no further. 2.
  • Page 37 echnical ulletin PAGE: 1/1 Reissued:15-Aug-11 Model: Date: No.: Taurus-C1 (D074/D075) 15-Jul-11 RD074017a RTB Reissue Notes in bold italics were added. Subject: Prepared by: Abnormal Noise from the Mainframe T. Komori From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical...
  • Page 38 echnical ulletin PAGE: 1/2 Reissued:24-Aug-11 Model: Date: No.: Taurus-C1 (D074/D075) 19-Aug-11 RD074018a RTB reissue Notes in bold italics were revised. Subject: Prepared by: Request Regarding Reference Print Samples from K. Tsutsui RCL Factory From: PP Service Planning Department 1G Classification: Troubleshooting Part information Action required...
  • Page 39 echnical ulletin PAGE: 2/2 Reissued:24-Aug-11 Model: Date: No.: Taurus-C1 (D074/D075) 19-Aug-11 RD074018a Check Procedure 1. A ream of paper is sealed in a plastic bag and loaded in Tray 2 at the factory. Set this paper in Tray 2. This paper is produced in Japan and is the same brand used for print samples included with the accessories.
  • Page 40 PAGE: 1/4 Reissued:12-Feb-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 22-Aug-11 RD074019a RTB Reissue The items in bold italics were corrected or added. Subject: Troubleshooting procedures for Banding (uneven Prepared by: Hiroshi Inenaga density in 50mm pitch) From: PP Tech Service Dept., 1st PP Tech Service Sect.
  • Page 41 PAGE: 2/4 Reissued:12-Feb-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 22-Aug-11 RD074019a Step 2: Print out 40 sheets of full page solid fills on A3/DLT in duplex in the affected color to refresh toner in the development unit. Then, do SP3-011-002 or [0201: Adjust Image Density] in the [Adjustment Settings for Skilled Operators].
  • Page 42 PAGE: 3/4 Reissued:12-Feb-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 22-Aug-11 RD074019a Development roller Drive gear- Coupling gear alignment procedure Before aligning the gears, see below on how to identify the markings made on these gears at the factory. How to identify the marking on the Drive Gear on the Mainframe Slide out the PCDU and look for a white marking on the gear as shown in the photo below.
  • Page 43 PAGE: 4/4 Reissued:12-Feb-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 22-Aug-11 RD074019a Align the white marking on the coupling gear of the development unit with the white marking on the mainframe gear by turning the coupling gear counterclockwise. If the coupling gear is marked in white and pink, refer to the pink marking when aligning the gears.
  • Page 44 PAGE: 1/2 Reissued: 14-Sep-11 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.:RD074010b Subject: Prepared by: Firmware Release Note: Web Uapl N.Iida From: PP Service Planning Department 1G Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive...
  • Page 45 PAGE: 2/2 Reissued: 14-Sep-11 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.:RD074010b Version Modified Points or Symptom Corrected The following peripherals are supported starting from this version: Buffer Pass Unit Type 5010 Trimmer Unit TR5040 Cover Interposer Tray CI5020 High Capacity Stacker SK5020 Ring Binder RB5010 Please make sure that ALL versions listed below are updated concurrently.
  • Page 46 echnical ulletin PAGE: 1/3 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 19-Oct-11 RD074025 Subject: Prepared by: SC496 (MUSIC Sensor Error) / Inaccurate T. Komori reproduction of straight lines From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 47 echnical ulletin PAGE: 2/3 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 19-Oct-11 RD074025 Temporary Solution How to check if the Lens Assembly unit is set properly 1. Do SP2111-004 (Forced Line Position Adj – Mode d) to execute MUSIC. 2. Check the results in SP2181-014~022 (Alignment Result) and take note of the values. Description 2181-014 Difference Sub Left: C...
  • Page 48 echnical ulletin PAGE: 3/3 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 19-Oct-11 RD074025 4. Locate the Lens Assembly unit (indicated with the red arrow in the photo below). Hold both ends of the unit and press it downwards (as indicated with the orange arrows) until it reaches the bottom.
  • Page 49 echnical ulletin PAGE: 1/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 Subject: Prepared by: Service Manual Revision T. Komori From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 50 echnical ulletin PAGE: 2/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < During Maintenance \ Ozone Filters> 30m3 50 m3 < Safety Instructions for the Machine \ Prevention of Physical Injury > Before the Revision After the Revision 7. To prevent a fire or explosion, keep the machine away from flammable liquids, •...
  • Page 51 echnical ulletin PAGE: 3/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Main Machines \ Base Configuration > Description of M044 was added. M044 Paper Source Paper Capacity Total Main 1st Tray 1000 + 1000 2000 Main 2nd Tray LCIT 1st Tray 1000 1000...
  • Page 52 echnical ulletin PAGE: 4/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Main Machines \ New Features > Illustration and description of the “Improved Paper Path” were revised. Before the Revision After the Revision To support printing on 300 g/m2 paper and duplex To support printing on 300 g/m2 paper and duplex printing on paper up to 256 g/m2, the arcs in the printing on paper up to 256 g/m2, the arcs in the...
  • Page 53 echnical ulletin PAGE: 5/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 1. Product Information < Main Machine and Peripherals \ Main Peripherals > Description of M044 was added. Unit Comment Main machine M044 Printer Decurl Unit (D544) Installed inside the machine A3/DLT LCIT (D516) Only one LCIT available Multi Bypass Tray (D517)
  • Page 54 echnical ulletin PAGE: 6/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Guidance for Those Who Are Familiar with Predecessor Products \ Paper: Trays, Transport, etc. \ Main Machine Specifications > The following descriptions were revised. Before the Revision After the Revision Paper Cooling Unit Paper Cooling Unit...
  • Page 55 echnical ulletin PAGE: 7/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Overview \ Machine Layout > Incorrect descriptions of tray numbers were corrected. Before the Correction After the Correction • PFU (Tray 1). Paper Feed Unit for Tray 1. Contains the •...
  • Page 56 echnical ulletin PAGE: 8/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 2. Installation < Operating Environment \ Machine Level> Description of machine leveling adjustment for M044 was added. M044 The covers should be removed before leveling the machines. Front to rear Less than 5.0 mm (0.2") away from level Right to left Less than 5.0 mm (0.2") away from level...
  • Page 57 echnical ulletin PAGE: 9/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 <Main Machine \ Installation Flow > Installation Flow was revised accordingly with the adoption of the pre-installed developer. Procedure Installation: Power Off Unpack Install Attention Light Install Operation Panel Connect ARDF (D074/D075) Attach Fusing Roller Knob Holder Level the Main Machine...
  • Page 58 echnical ulletin PAGE: 10/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 <Main Machine \ Installation: Power Off \ Attention Light > Screws for fixing the Attention Light were changed. Before the Revision After the Revision 1. The attention light is installed on the top rear edge 1.
  • Page 59 echnical ulletin PAGE: 11/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 <Main Machine \ Installation: Power Off \ Operation Panel: Easy Access Installation > Instructions were revised accordingly with the change in screw type. Before the Revision After the Revision 6.
  • Page 60 echnical ulletin PAGE: 12/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 [D] Caution When Turning Off the Main Power Switch decal 1. Attach the decals at the locations shown above. [A] Precautions for Printing decal [B] Caution When Turning Off the Main Power Switch decal <Main Machine \ Installation: Power On >...
  • Page 61 echnical ulletin PAGE: 13/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 6. Prepare the PC for printing. 7. Print a test page with the Fiery printer driver. 8. Confirm that the grid lines for each color are superimposed correctly. •...
  • Page 62 echnical ulletin PAGE: 14/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 <Main Machine \ Checking the Print Quality \ Image Shift Check between the 1st and 2nd Pages > The following procedure was changed. Before the Revision After the Revision Procedure Procedure 1.
  • Page 63 echnical ulletin PAGE: 15/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 Test Pattern 1. Turn on the main power switch. 2. Open SP5070-1 (Switching Print Application), and then select "6" (Printer) (D074/D075). 3. Do SP2109-3 and select Pattern 14 (Trimming Area), and then touch [OK].
  • Page 64 echnical ulletin PAGE: 16/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Main Machine \ Tray Heaters > Description of Tray Heaters was changed. Before the Revision After the Revision There are two heater switches on the front of the There are two heater switches on the front of the machine.
  • Page 65 echnical ulletin PAGE: 17/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 • Set SP5965-1 to "1" if you want to have the heaters on at all times. Use this setting only if the work area is extremely humid or exceptionally cold.
  • Page 66 echnical ulletin PAGE: 18/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 4. Remove: 3. Remove the bracket [A] ( x4). [A] Bracket ( x4). 4. Remove the side stay [B] ( x4). [B] Side stay ( x4). 5. Remove the guide plate [C] ( [C] Guide plate ( x2).
  • Page 67 echnical ulletin PAGE: 19/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Multi Bypass Tray (D517) \ Installation \ Attaching the Tray Number Decals > Tray numbers were specified in the illustration and in the description. <Installation procedures for the following 5 peripherals were added. > Buffer Pass Unit Type 5010 (D548) Cover Interposer Tray (D518) Ring Binder (D519)
  • Page 68 echnical ulletin PAGE: 20/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 <Multi Folding Unit (D521) \ Accessories > Mylar was added to the accessories. Mylar (for downstream unit) <Multi Folding Unit (D521) \ Installation \ Finishing the Installation > Procedure for attaching the Mylar was added.
  • Page 69 echnical ulletin PAGE: 21/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 3. Preventive Maintenance < PM Tables for Main Machines \ Around the Drum > Replacement interval was revised and description for M044 was added. Before the Revision After the Revision Part Action Part...
  • Page 70 echnical ulletin PAGE: 22/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < PM Tables for Peripherals > PM Tables for the following 4 peripherals were added. Cover Interposer Tray (D518) Ring Binder (D519) High Capacity Stacker (D515) Trimmer Unit (D520) <...
  • Page 71 echnical ulletin PAGE: 23/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Cleaning Points \ Inspection and Cleaning \ Left Drawer > Photos were replaced to show more clearly of the areas requiring cleaning. Before the Revision After the Revision 23.
  • Page 72 echnical ulletin PAGE: 24/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Common Procedures \ Removing the Canopy Cover > Procedure for removing the Canopy Cover of M044 was added. < Common Procedures \ Removing PCDUs > “Caution” note for setting the PCDU was added. •...
  • Page 73 echnical ulletin PAGE: 25/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Laser Unit \ YM Laser Unit Removal: D074/D075 > Procedure for removing the Plates was changed accordingly with the change made in the method for fixing the plates. Before the Revision After the Revision 1.
  • Page 74 echnical ulletin PAGE: 26/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 • When the PCDU is locked correctly, the top of the lock lever is straight as shown above. • If the PCDU is not locked correctly, the top of the lock lever is slanted slightly down to the left as shown above.
  • Page 75 echnical ulletin PAGE: 27/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Image Transfer Belt (ITB) Unit / Lubrication Blade > Procedure for “After Replacement” (of the lubrication blade) was changed. Before the Revision After the Revision After Replacement After Replacement 1.
  • Page 76 echnical ulletin PAGE: 28/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Image Transfer Belt (ITB) Unit / After Transfer Belt Replacement > The following procedure was corrected. Before the Revision After the Revision 1. The machine power must be OFF. 1.
  • Page 77 echnical ulletin PAGE: 29/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Right Drawer \ LCIT Relay Sensor 2 > Change in screw quantity Before the Revision After the Revision 2. Disconnect the sensor bracket [1] ( x1). 2. Disconnect the sensor bracket [1] ( x2).
  • Page 78 echnical ulletin PAGE: 30/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Fusing Unit \ Heating Roller > The following procedure was deleted as grease application for the Hot Roller Bearings is no longer needed. 11. Before you remove the heating roller, cut out the pattern shown above. (You will need this to remove the heating roller.) •...
  • Page 79 echnical ulletin PAGE: 31/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Fusing Unit \ Hot Roller, Fusing Belt > The following procedure was deleted as grease application for the Flanges is unnecessary. 11. Before you remove the hot roller, cut out the pattern shown above. (You will need this to remove the hot roller.) 12.
  • Page 80 echnical ulletin PAGE: 32/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 The following was added as a procedure required after replacement with a new hot roller. After New Hot Roller Installation A newly installed hot roller may have a tendency to catch and cause spurious noise. Do the following procedure to avoid this problem.
  • Page 81 echnical ulletin PAGE: 33/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 7. Re-attach the top cover [A] ( x2). 8. Turn the machine on. 9. Wait a few moments for the pressure roller to move to the start position. 10.
  • Page 82 echnical ulletin PAGE: 34/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 4. Use a small brush to apply FLUOTRIBO MG Grease to the flanges at . Never apply grease to the outer rim of the flange at 5. After lubricating a flange, inspect the rim. 6.
  • Page 83 echnical ulletin PAGE: 35/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Fusing Cleaning Unit \ Web Supply Roller > “Note” on re-assemblage of the Web Supply Roller was added. • Note carefully how the web is routed from the supply roller [1] under the actuator [2], and over the contact roller [3] to the take-up roller [4].
  • Page 84 echnical ulletin PAGE: 36/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Left Drawer \ Duplex Transport Motor 1 > Indication of the removing screw was corrected. Before the Revision After the Revision < Left Drawer \ Duplex Inverter Motor > Indication of the removing screw was corrected.
  • Page 85 echnical ulletin PAGE: 37/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 Indication of the sensor position was corrected. Before the Revision After the Revision < Duplex Motors and Rollers > Corrupted image of the paper path was revised. Before the Revision After the Revision 6.
  • Page 86 echnical ulletin PAGE: 38/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 SC210: Missing description was added. Before the Revision After the Revision • Cycle the machine off/on • Cycle the machine off/on • Laser unit defective • Laser unit defective SC220, SC222, SC224, SC226: False description was corrected.
  • Page 87 echnical ulletin PAGE: 39/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < SC Tables \ SC500: Paper Feed, Transport, Duplexing > SC576 added SC576 Hot Roller NC Sensor (Sensor 7) Poor Connection The hot roller NC sensor (infrared thermistor) on top of the fusing unit detected temperature less than 0C for 75 sec.
  • Page 88 echnical ulletin PAGE: 40/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Special Troubleshooting Procedures \ ITB Condition Check > Before the Revision After the Revision An ITB condition check is required after installing An ITB condition check is required after installing a new ITB or after doing the physical adjustment a new ITB or after doing the physical adjustment described in the previous section.
  • Page 89 echnical ulletin PAGE: 41/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Special Troubleshooting Procedures \ MUSIC Adjustment Result > Before the Revision After the Revision Result Description Result Description Not done MUSIC has not been done. Not done MUSIC has not been done.
  • Page 90 echnical ulletin PAGE: 42/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Troubleshooting for Image Quality Problems \ Color Toner Spotting/Staining \ Paper Is Spotted with Toner > Steps 1, 3, 6, 8, and 10 of “Solution” were modified. Before the Revision After the Revision Solution:...
  • Page 91 echnical ulletin PAGE: 43/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 • If paper in use is NOT listed in the Paper Library, register settings for the paper in use by using registered paper in the Paper Library which is same or close paper type and paper thickness to the paper in use.
  • Page 92 echnical ulletin PAGE: 44/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 to [Special Mode] or set SP2-225-12 to 15 to "1: ON". No Replace the drum unit. ( p.553) < Troubleshooting for Image Quality Problems \ Color Loss \ White Spots > The description “Before Action”...
  • Page 93 echnical ulletin PAGE: 45/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 Before the Revision After the Revision Solution Solution 2. Configure the following settings in [Advanced 2. Configure the following settings in [Advanced Settings] for the custom paper in use. Settings] for the custom paper in use.
  • Page 94 echnical ulletin PAGE: 46/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 No Contact your supervisor. Yes. End. No. Go to 12. 12. Reduce the setting another 5%. 13. Do a test print, check the results. Printing recovered? Yes. Succeeded, go to 12. (as long as image is satisfactory, you can keep adding 5%).
  • Page 95 echnical ulletin PAGE: 47/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Troubleshooting for Image Quality Problems \ Density Problems \ Color (2): Entire Image Faint > The following description was added in step 6 of “Solution”: Note • "ACC" is machine calibration for copier jobs. •...
  • Page 96 echnical ulletin PAGE: 48/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 The following table was added in step 1 of “Procedure 4: Changing the process speed”, <D075>: Advanced Settings SP Code Settings High 0: Target Speed Middle 1: Medium Speed 2: Low Speed <...
  • Page 97 echnical ulletin PAGE: 49/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 in the paper tray. in the paper tray. Load identical sheets in the paper tray. Load identical sheets in the paper tray. When printing from a tray containing sheets of mixed color, When printing from a tray containing sheets of mixed you can prevent paper mis-feeding by specifying the color, you can prevent paper misfeeding by...
  • Page 98 echnical ulletin PAGE: 50/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 <If custom paper is not used> 1. In the [Adjustment Settings for Skilled Operators] menu, set [0108: Skew Detection] to [Off] or set the setting of SP1-021-001 to -007 to [0]. <...
  • Page 99 echnical ulletin PAGE: 51/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 LCT Fan Level]. LCT Fan Level] or with SP-1920-001 to 003. < Troubleshooting for Paper Delivery Problems\ Paper Feed Problems Affecting Image Quality \ The Image Is Positioned Incorrectly > Before the Revision After the Revision <If custom paper is not used>...
  • Page 100 echnical ulletin PAGE: 52/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Troubleshooting for Paper Delivery Problems\ Paper Feed Problems Affecting Image Quality \ Decurling Results in Scratches, Streaks, or Creases > Before the Revision After the Revision Solution: Solution: 2.
  • Page 101 echnical ulletin PAGE: 53/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Jam Codes > The following description was deleted. J002 Jam Release Appendices < Appendix: Specifications \ Main Specifications \ General Specifications: Copier and Printer > “Index” was deleted from the supported media types for “Main 1 Tray”.
  • Page 102 echnical ulletin PAGE: 54/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 < Appendix: Specifications \ Main Specifications \ Main Machine Options \ A3/DLT Tray Kit B8331 (Option) > Supported paper weight was changed as follows: 52 - 210 g/m2 52.3 to 300 g/m2 <...
  • Page 103 echnical ulletin PAGE: 55/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 1956 Dbl-Feed Detect was added. 1957 Side-to-Side Reg Disable was added. 1958 Sub Scan Reg Correction Setting was added. 1960 Line Speed Adjust:Pos.1 1960 Line Speed Adjust:Pos.1 [-2.5 to +12.5 / 2 / 0.5%] [-2.5 to +12.5 / / 0.5%] 1961 Line Speed Adjust:Pos.2...
  • Page 104 echnical ulletin PAGE: 56/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 The following description was deleted: Sets LD On <Color> where color is YMCK. 2193 PD Control 2193 PD Control [0 to 1023 / 01] [ 0 to 1023 / - / 1] The following description was deleted: These SP codes display the output of monitor PD.
  • Page 105 echnical ulletin PAGE: 57/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 5803 Input Check was added with detail information. 5804 Output Check 5804 Output Check 209 De-curl Press Adj (To Default Up HP) 209 De-curler Unit Move: Lower Default 210 De-curl Press Adj (To Default Down HP) 210 De-curler Unit Move: Upper Default 5882 CPM Set DFU was deleted.
  • Page 106 echnical ulletin PAGE: 58/58 Model: Date: No.: Taurus-C1 / P1 21-Oct-11 RD074026 added. 6755 FM4 3rds 1 Flap:Fine Adj 1st (D521) was added. 6756 FM4 3rds 1 Flap:Fine Adj 2nd (D521) was added. < Appendix: Service Program Mode Tables \ Group 7000 > Before the Revision After the Revision 7801 ROM No./Firmware Version was added.
  • Page 107 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-2011 RD074027 Subject: Prepared by: T. Komori Field Service Manual Correction (ARDF specification) From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 108 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-2011 RD074028 Subject: Field Service Manual Correction (SC681) Prepared by: T. Komori From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 109 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074028 NOTE For sub codes 061－164: Use the following table to determine the affected toner cartridge. Sub code Affected toner (last digit) cartridge For sub codes 081–164: In some cases, replacing the toner cartridge may not clear the SC. If this happens, the cause is probably a board or harness defect, which affects all four colors.
  • Page 110 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Nov-11 RD074030 Subject: Prepared by: Troubleshooting residual image (uneven density) T. Komori From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 111 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Nov-11 RD074030 Cause Symptoms “a” and “b” are both caused by the same mechanism. The non-image area of the drum surface is unable to retrieve a surface potential equal to the area where the solid image was created after quenching and recharging for the halftone image to follow.
  • Page 112 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1 04-Nov-2011 RD074031 Subject: Service manual correction: Main frame’s and Fiery Prepared by: K. Tsutsui installation From: PP Service Planning Department 1G Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 113 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1 04-Nov-2011 RD074031 Correction 2: Location of the incorrect description 2. Installation > Main Machine > Fiery Controller Setup > Fiery Controller Selection 6 is incorrect. Please change 6 into 1.
  • Page 114 Tier 2 This RTB has been issued to announce the restriction on use of carbonless copy papers (NCR papers), which applies to both Taurus-C1a/C1b and Taurus-P1. Symptom Continuous usage of carbonless copy papers (NCR paper) may result in skews and/or jams.
  • Page 115 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 17-Nov-11 RD074032 For EU only The following carbonless copy papers have been deleted from the Paper Library in Rev.4.0 ( ). If the former version D0755785_R4 for the copiers / M0445785_R4 for the printers (Rev.2.0 / Rev.3.0) is installed in the machine, please apply the update.
  • Page 116 PAGE: 1/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 Subject: Prepared by: Procedures for Installing the GBC StreamPunch Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision...
  • Page 117 PAGE: 2/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 2. Required Parts Make sure that you order the following special parts. Install these parts by following the installation procedure in the next section “3. Installation.” Description Q’ty Note...
  • Page 118 PAGE: 3/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 3. Installation Installation Overview Step 1. Installing the exclusive bracket(s) Step 2. Removing the guide plate supplied with the GBC StreamPunch (if installed) Step 3. Installing the exclusive guide plate Step 4.
  • Page 119 PAGE: 4/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 Case B Install the brackets supplied with the GBC StreamPunch if the D544 Decurler unit is not installed. Use [A] for the rear side and [B] for the front side.
  • Page 120 PAGE: 5/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 Step 3. Installing the exclusive guide plate (Guide Plate:GBC:ASS’Y M0774707) Front Rear 3.1. Install the exclusive guide plate [A] (GUIDE PLATE:GBC:ASS’Y: M0774707) (2 screws) so that the oval shaped hole [B] positions to the front side.
  • Page 121 PAGE: 6/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 3.3. Attach the spacer cushion [A] (SPACER CUSHION: B8321371) to the top edge of the punch unit. Note: Use the special cushion for the top edge. For the remaining edges, use the cushions supplied with the StreamPunch.
  • Page 122 PAGE: 7/7 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-Nov-11 RD074033 Step 5. Mainframe height adjustment 5.1. Adjust the height of the mainframe so that the top edge of the mainframe bracket [A] aligns with the top edge of the GBC StreamPunch bracket [B].
  • Page 123 echnical ulletin PAGE: 1/6 Reissued:01-Dec-11 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sept-2011 RD074022a RTB Reissue The italic item has been added. Subject: Reflect the value of SP1001-002 to Custom Paper Prepared by: K. Tsutsui Settings From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required...
  • Page 124 echnical ulletin PAGE: 2/6 Reissued:01-Dec-11 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sept-2011 RD074022a Current specification Optimized registration adjustment value in the sub-scan direction is input to SP1001 for each paper weight at the factory, which is then input manually in SP1950 and 1951 to reflect the optimum registration for each custom paper in use.
  • Page 125 echnical ulletin PAGE: 3/6 Reissued:01-Dec-11 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sept-2011 RD074022a Modified specification The newly added SP1501-001 will automatically define the registration in the sub scan direction for every paper type as shown in the table below based on the value fixed at the factory.
  • Page 126 echnical ulletin PAGE: 4/6 Reissued:01-Dec-11 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sept-2011 RD074022a Production of December 2011 ~ Optimum registration adjustment in the sub scan direction is defined in SP1501-001 instead of SP1001. For example, the initial SP values are defined as follows. Current Specification Modified Specification SP1501-001...
  • Page 127 echnical ulletin PAGE: 5/6 Reissued:01-Dec-11 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sept-2011 RD074022a Updating F/W for Units of Production Prior to December 2011 Registration values currently saved in SP1001 will remain even after the f/w update, to avoid unwanted changes. The default value of SP1501-001 is set to “0” for this reason. This is an example.
  • Page 128 echnical ulletin PAGE: 6/6 Reissued:01-Dec-11 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sept-2011 RD074022a The procedure in the original bulletin as shown below applies ONLY to units of production prior to December 2011. Request Instruct customers to set the value of SP1001-002 in the “Custom paper” settings. Or, CEs can do this.
  • Page 129 Software bugs causing failure in the LCT paper feed controls Problem occurrence conditions The problem occurs on Taurus-C1b and Taurus-P1 75ppm machines when all of the following 3 conditions are met. The problem will not occur on the Taurus-C1a 65ppm machine. SP1004-003 is "2 or greater". （-5~1:OK, 2~5: NG)
  • Page 130 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Dec-2011 RD074034 Jam 27: Location of jammed paper The right-drawer unit should be clear; Jammed paper should be found at the no jammed paper. entrance of the mainframe. Jam 29: Location of jammed paper Jammed paper should be found in the right drawer unit.
  • Page 131 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 16-Dec-11 RD074035 Subject: Prepared by: Maximum Power Consumption of Taurus-C1/P1 Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dep. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 132 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 20-Dec-11 RD074036 Subject: Prepared by: Unit Used for PM Counter Display Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision...
  • Page 133 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 27-Dec-11 RD074037 Subject: Prepared by: Troubleshooting Toner Leak from Waste Toner Bottle Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical...
  • Page 134 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 06-Jan-12 RD074038 Subject: Service Manual Revision Prepared by: K. Tsutsui From: 1st Tech Service Section, PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 135 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jan-12 RD074039 Subject: Prepared by: Service Manual Revision: SC995 Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision...
  • Page 136 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 23-Jan-12 RD074040 Subject: Prepared by: Service Manual Correction (Tray Number of RT5060) Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 137 echnical ulletin PAGE: 1/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a RTB Reissue The item in italic was added Subject: Prepared by: Troubleshooting PTR Entrance Paper Jams K. Tsutsui From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical...
  • Page 138 echnical ulletin PAGE: 2/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a The side effects c), d), and e) occur when the toner on the ITB is wiped off. This happens when feeding very stiff paper that pushes the mylar upwards against the ITB or when the paper contacts the ITB immediately after the trailing edge passes the guide plate.
  • Page 139 echnical ulletin PAGE: 3/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Symptom Paper jams at PTR entrance Cause Among the 3 Mylars attached to the PTR entrance guide plate, the bottom Mylar wears over time. The leading edge of the paper interferes with the damaged area of this bottom Mylar, resulting in paper jams.
  • Page 140 echnical ulletin PAGE: 4/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Breakage of the Bottom Mylar Over Time Abrasion Middle Mylar Bottom Mylar Middle Mylar Bottom Mylar Paper Feed Direction Friction from feeding and pressure from the middle Mylar and paper causes to Holes created abrade the bottom Mylar.
  • Page 141 echnical ulletin PAGE: 5/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Explanation Purpose of the Bottom Mylar Paper particles (coating material) accumulate on the edges of the middle and bottom Mylars when coated thick paper stocks are fed. The bottom Mylar was attached to cover the edges of the top and middle Mylars, to prevent the piled up coating materials from scraping off the coated layer at the entrance of the PTR nip, causing the image quality issue known as “white streaks”.
  • Page 142 echnical ulletin PAGE: 6/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Procedure: Peeling Off the Bottom Mylar BEFORE Bottom Mylar Removal AFTER Bottom Mylar Removal Feed Direction Feed Direction Remove this Mylar. Step 1. Pull out the ITB unit by referring to the procedure described in the service manual.
  • Page 143 echnical ulletin PAGE: 7/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Step 3. Peel off only D0743826 (INSULATING SHEET: GUIDE: INTERMEDIATE TRANSFER: from D0746122 (GUIDE: TRANSPORT: INTERMEDIATE TRANSFER: ASS'Y) D0743826 （Peel off this Mylar.） DO NOT grip here. D0746124 D0743843 Grip here for removal.
  • Page 144 echnical ulletin PAGE: 8/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Step 4. After confirming that no adhesive remains are observed on the paper-contacting surface of D0743843, wipe the area with a damp cloth. D0743843 Adhesives D0743843 Paper contacting surface Make sure the paper-contacting surface is smooth and is not bent at...
  • Page 145 echnical ulletin PAGE: 9/9 Reissued:06-Jan-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 25-Aug-11 RD074020a Step 5. Attach D0746122 to the (GUIDE: TRANSPORT: INTERMEDIATE TRANSFER: ASS'Y) ITB unit. ITB Unit ITB Unit Enlarged photo D0746122 D0746122 b. Align the two embossments at the front side of the ITB unit. a.
  • Page 146 PAGE: 1/3 Reissued:19-Sep-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-12 RD074041a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Troubleshooting Small Pitch(2-3mm) Bandings Shinnosuke Sasaki From: 1st PP Technical Service Section Classification: Troubleshooting...
  • Page 147 PAGE: 2/3 Reissued:19-Sep-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-12 RD074041a Procedure 1. Remove the drum charge unit from the PCDU by referring to the procedure in the following section of the service manual. 4. Replacement and Adjustments > Photoconductor Development Unit (PCDU) > Drum Charge Unit 2.
  • Page 148 PAGE: 3/3 Reissued:19-Sep-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-12 RD074041a Note  There are two types of drum charge units; one with the washers [B] and one without the washers.  If you find any grease adhered to the drum charge roller, wipe it off with a clean wet cloth and wait until the surface dries naturally.
  • Page 149 PAGE: 1/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 02-Feb-12 RD074042 Subject: Service Manual Revision: SC595 (sub-code) Prepared by: T. Komori From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision...
  • Page 150 PAGE: 2/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 02-Feb-12 RD074042 NOTE PTR Separation Motor For details, see the service manual: 4.Replacement and Adjustments > Image Transfer Belt (ITB) Unit > PTR Separation Motor. ITB Bias Roller PTR Separation Motor...
  • Page 151 PAGE: 3/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 02-Feb-12 RD074042 The two motors are connected to the TDRB in the ITB unit. For details, see the service manual: 4.Replacement and Adjustments > Image Transfer Belt (ITB) Unit > TDRB.
  • Page 152 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 13-Feb-12 RD074043 Subject: Prepared by: Service Manual Correction (SC599) Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 153 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Feb-12 RD074044 Subject: Prepared by: Troubleshooting Vertical Dark Lines S. Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 154 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Feb-12 RD074044 2. Clean the doctor gap of the affected color. Cut out an OHP transparency [A] or a plastic sheet as shown below. Clean the doctor gap using the sheet and then vacuum the remaining developer. Note This procedure is almost the same as the procedure for troubleshooting “Vertical white line”...
  • Page 155 echnical ulletin PAGE: 1/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 Subject: Prepared by: Engine and Log Capture Tool / Procedures K. Tsutsui From: 1st Tech Service Section, PP Tech Service Dep. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive...
  • Page 156 echnical ulletin PAGE: 2/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 NOTE: A USB converter is not required if the PC is equipped with a serial port. Basic Idea of Log Capturing The Taurus-C1/P1 engine runs on one CPU. IMPORTANT: All the logs from the beginning of the job until the symptom occurrence is required for log analysis.
  • Page 157 echnical ulletin PAGE: 3/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 4. Connect the debug cables to the BCU board. -There are two connectors on the BCU board: one for the Master connector and one for the Slave connector. -If required, rotate the IOB/BCU Board to identify the location of the Master and the Slave connectors on the BCU board by referring to the FSM section “4.
  • Page 158 echnical ulletin PAGE: 4/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 5. Connect the debug cables to each of the connectors on the BCU board. Cable for the Slave connector Cable for the Cable for the Cable for the Slave connector Master connector Master connector NOTE: The two cables for Master and...
  • Page 159 echnical ulletin PAGE: 5/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 Setting up Tera Term (Log Monitor) 1. Activate Tera Term. Activate two Tera Term windows on your PC for Master and for Slave. Active the two Tera Terms on your PC. Active the two Tera Terms on your PC.
  • Page 160 echnical ulletin PAGE: 6/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 Capturing the Logs 1. Select [File] > select [Log], type in file name, and click [Open]. A pop-up window will appear. Save the file name as “xxx.txt” or “xxx.log”. Do this procedure for the two Tera Terms. 2.
  • Page 161 echnical ulletin PAGE: 7/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 Capturing the TDCU logs TDCU logs can be captured using Tera Term similarly to BCU log capturing. Open the rear cover to access the TDCU. Refer to the FSM for the detailed procedure. The TDCU has only one connector, which is CN382.
  • Page 162 echnical ulletin PAGE: 8/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 The following are the differences in the Tera Term settings in comparison with the BCU. Serial port setup [Baud rate] is “115200”. (BCU is “57600”.) [Transmit delay] is both set to “5”. (BCU is “10” and “0”.) Terminal set up [Transmit] is “CR”.
  • Page 163 echnical ulletin PAGE: 9/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-12 RD074045 Reference TDCU logs could become helpful in determining the problem and identifying the cause in the following cases. Jam 80 (Sub Scan Registration Correction) Drum Motor Error (SC395-**~398-**) Transfer Belt Drive Motor Error (SC446-**) PTR Motor Error (SC465-**)
  • Page 164 Note Taurus supports the external key card but not the external key counter. Procedure 1. Procure a Ricoh manufactured relay board. "B87011(EDP 413012)：OPTIONAL COUNTER I/F TYPE A" 2. Turn the main switch off. 3. Remove the controller box cover by following the procedure in your Taurus service manual in the section: 4.
  • Page 165 PAGE: 2/5 Model: Date: No.: Taurus-C1a/C1b 27-Feb-12 RD074046 5. Route the key card cable through the hole [A] on the top of the controller box 6. Route the cable [B] and fasten it with the three clamps [A] on the controller box.
  • Page 166 PAGE: 3/5 Model: Date: No.: Taurus-C1a/C1b 27-Feb-12 RD074046 7. Connect the harnesses of the key card cable to the connectors [A] and [C]. [A] is for a 7-pin connector and [C] is for a 20-pin connector. 8. Fasten the ground wire [B] with a screw.
  • Page 167 PAGE: 4/5 Model: Date: No.: Taurus-C1a/C1b 27-Feb-12 RD074046 For RK mode 9. Connect the accessory harness to the connector CN3 [A] on the interface board. 10. Connect the other end of the harness to the connector [B] on the control box 11.
  • Page 168 PAGE: 5/5 Model: Date: No.: Taurus-C1a/C1b 27-Feb-12 RD074046 14. Route the harness through the hole [A] and connect the other end of the harness to the interface board [B].
  • Page 169 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 27-Feb-12 RD074047 Subject: Prepared by: Service Manual Correction (Paper Specification) Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 170 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 27-Feb-12 RD074047 Appendices > 1. Appendix: Specifications > Peripheral Specifications > LCIT RT5060 (D516) Note For Gloss and Matte paper stocks, basic weight of more than 80gsm is required. Gloss and Matte paper stocks of 80gsm or lighter are not supported.
  • Page 171 echnical ulletin PAGE: 1/3 Reissued:2-Sep-13 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 29-Feb-12 RD074048a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Gear removal from Drum Charge Unit at next PM S. Sasaki cycle From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information...
  • Page 172 echnical ulletin PAGE: 2/3 Reissued:2-Sep-13 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 29-Feb-12 RD074048a Procedure for Removing the Drum Charge Roller Gear General Notes 1. Work carefully to prevent the grease applied to the gear from adhering to the drum charge roller. 2.
  • Page 173 echnical ulletin PAGE: 3/3 Reissued:2-Sep-13 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 29-Feb-12 RD074048a Note There are two types of drum charge units; one with washers [B] and one without washers. If you find any grease adhered to the drum charge roller, wipe it off with a clean wet cloth and wait until the surface dries naturally.
  • Page 174 PAGE: 1/6 Reissued:11-Jun-12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Feb-12 RD074049a RTB Reissue The numbers of the steps were corrected and a photograph was deleted. Subject: Prepared by: Procedure for Replacing the Encoder Shaft Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept.
  • Page 175 PAGE: 2/6 Reissued:11-Jun-12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Feb-12 RD074049a Procedure for Replacing the Encoder Shaft. Preparation 1. Pull out the ITB unit to the second position according to the service manual in the section: 4. Replacement and Adjustments > Common Procedures > Pulling Out the ITB Unit >...
  • Page 176 PAGE: 3/6 Reissued:11-Jun-12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Feb-12 RD074049a Note Front Rear If possible, remove the entire ITB unit from the mainframe because it will be easier to perform the procedure. In this case, the unit should be supported by its shafts [A].
  • Page 177 PAGE: 4/6 Reissued:11-Jun-12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Feb-12 RD074049a Procedure 2. Remove the 4 pins [A] on the housing. 3. Disconnect the harness [A] and pull out the boards [B] in the direction indicated with the arrows. The harnesses on [B] do not have to be disconnected because the boards can be detached from...
  • Page 178 PAGE: 5/6 Reissued:11-Jun-12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Feb-12 RD074049a 4. Remove the housing [A]. (Screw x1) 5. Remove the rubber [A], the encoder [B] and the encoder plate[C]. Work carefully to avoid damaging the encoder. 6. Unscrew the shaft [A]. Hold the motor when you unscrew to prevent the shaft from slipping.
  • Page 179 PAGE: 6/6 Reissued:11-Jun-12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Feb-12 RD074049a 7. Remove the shaft [A] Installation Follow the above procedure in the reverse order. Note When installing the encoder shaft, make sure to fasten the shaft with a wrench until the shaft locks.
  • Page 180 echnical ulletin PAGE: 1/2 Model: Date: No.: Katana-C2 (D059) 26-Jan-12 RD059095 Subject: Part Changes - New ball bearings- Prepared by: A. Takada From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 181 echnical ulletin PAGE: 2/2 Model: Date: No.: Katana-C2 (D059) 26-Jan-12 RD059095 Close up view...
  • Page 182 PAGE: 1/4 Model: Date: No.: Taurus-C1a/C1b 08-Mar-12 RD074051 Subject: Prepared by: Part Catalogue for OUTPUT TRAY TYPE C751 S. Sasaki (D720) From: 1st PP Tech Service Sec., PP Tech Service Dept., Troubleshooting Part information Action required Classification: Mechanical...
  • Page 183 PAGE: 2/4 Model: Date: No.: Taurus-C1a/C1b 08-Mar-12 RD074051 C2504377 BRACKET:ADJUSTING SCREW:END FENCE C2294373 ADJUST SHAFT C2644086 SHAFT:END FENCE C6284385 END FENCE GRIP C5914096 END FENCE SLIDER - UU C2504341 END FENCE RAIL C6294354 SLIDER:END FENCE:MIDDLE C2504340 END FENCE SPRING...
  • Page 184 PAGE: 3/4 Model: Date: No.: Taurus-C1a/C1b 08-Mar-12 RD074051 Index Part NO. Description C2504370 REAR SIDE FENCE C2504367 SIDE FENCE CASE C6284368 UPPER - SIDE FENCE PIN C6284413 DELIVERY TABLE SPRING C6284414 PIN - LOWER SIDE FENCE C2504376 SIDE FENCE - REAR LOWER...
  • Page 185 PAGE: 4/4 Model: Date: No.: Taurus-C1a/C1b 08-Mar-12 RD074051 C2504366 SIDE FENCE - FRONT LOWER D7204546 GUIDE:SIDE FENCE:REAR 04523008N TAPPING SCREW - M3X8 03540100N SCREW - M4X10 Accessories Part NO. Description Q’ty D7204580 DUCT:UPPER:ASS'Y D7204570 FIX STAND:ASS'Y 04514008N TAPPING SCREW:4X8...
  • Page 186 PAGE: 1/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 Subject: Prepared by: Installation Procedure of NEW Paper Exit Tray Shinnosuke Sasaki From: 1st PP Service Planning Sec., PP Service Planning Troubleshooting Part information Action required Classification: Mechanical Electrical...
  • Page 187 PAGE: 2/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 Accessories Part NO. Description Q’ty D7204580 DUCT:UPPER:ASS'Y D7204570 FIX STAND:ASS'Y 04514008N TAPPING SCREW:4X8 D7204579 KNOB SCREW:TABLE 07200020G RETAINING RING - M2 D7204547 GUIDE:LOWER D7204548 GUIDE:SIDE FENCE:FRONT:LOWER D7204549 GUIDE:SIDE FENCE:REAR:LOWER...
  • Page 188 PAGE: 3/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 Installation Procedure 1. Remove the side fences [A]. (2 screws) 2. Wipe the surface of the tray with alcohol and attach the Top Mylar [A] Note: Make sure to align the edge of the mylar with the positioning lines [B].
  • Page 189 PAGE: 4/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 3. Wipe the surface of the side fences with alcohol and attach the Side Mylars. Make sure to align the edges of the Side Mylars [B] with the edges [A] of the side fences.
  • Page 190 PAGE: 5/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 5. Attach the side fences to the tray by hooking the slit [A] on the hinge [B]. The tray should look like this.
  • Page 191 PAGE: 6/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 CAUTION: Make sure that the main machine is switched off and that its power cord is disconnected before doing the following procedure. 6. Remove the left cover [A] (7 screws).
  • Page 192 PAGE: 7/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 8. Remove the guide plate [A] (2 screws). 9. Attach the left cover [A] (7 screws). 10. Attach the docking bracket [A] included in the accessories (4 screws M4 x 8).
  • Page 193 PAGE: 8/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 11. Mount the paper tray [A] on the copier/printer by hooking it on the hinges [B].
  • Page 194 PAGE: 9/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 12. Fasten the knob screws [A], included in the accessories, to the hinges on both sides. Use a coin to securely fasten the knob screw. Note Set the angle of the tray to its default position by aligning the center of the projection [A]...
  • Page 195 PAGE: 10/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 13. Attach the E-type ring [A] to both knob screws.
  • Page 196 PAGE: 11/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 14. Attach the duct cover [A] (3 double-sided tapes) so that the positioning line [C] aligns with the edge of the duct [B].
  • Page 197 PAGE: 12/12 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Mar-12 RD074052 The Paper Exit Tray should look like this after completing the installation.
  • Page 198 PAGE: 1/4 Reissued:30-Apr-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-Mar-12 RD074053c RTB Reissue The items in bold italics were added. Subject: Procedure for cleaning the Transfer Belt Speed Prepared by: Shinnosuke Sasaki Sensor From: 1st Tech Service Sect., PP Tech Service Dept.
  • Page 199 PAGE: 2/4 Reissued:30-Apr-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-Mar-12 RD074053c Remove the sensor bracket [D] (Screw x1). Carefully move the belt [A] to the non-operator side until the sensor [B] is uncovered. Note It is recommended to wear gloves when moving the ITB.
  • Page 200 PAGE: 3/4 Reissued:30-Apr-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-Mar-12 RD074053c Clean the sensors [A].  Use a vacuum cleaner or an air blower to remove dust.  Wipe the sensor with a wet cotton swab. If a cotton swap is not at hand, wipe the sensor with a wet cloth.
  • Page 201 PAGE: 4/4 Reissued:30-Apr-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-Mar-12 RD074053c Confirm the sensors are clean using a flashlight. Dust on the sensor is hard to detect in room light. Reinstall the unit 10. Turn the machine on. Wait until the machine is ready.
  • Page 202 PAGE: 1/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 15-Mar-12 RD074054 Subject: Prepared by: Service Manual Correction: SP5070-1 Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 203 PAGE: 2/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 15-Mar-12 RD074054 Correction 2 2. Installation > Main Machine > Checking the Print Quality > Ruled Line Check Enter “Adjustment Settings for Operators” and then select “0703 Switch Print Screen” Press “Copier” and then touch [OK] Delete step 6.
  • Page 204 PAGE: 3/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 15-Mar-12 RD074054 Correction 3 2. Installation > Main Machine > Checking the Print Quality > Image Skew Check Correct step 2 as follows: 2. Enter “Adjustment Settings for Operators” and select “0703 Switch Print Screen”. Press “Printer”...
  • Page 205 PAGE: 4/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 15-Mar-12 RD074054 Correction 4 2. Installation > Main Machine > Checking the Print Quality > Image Skew Check Correct step 2 as follows: 2. Enter “Adjustment Settings for Operators” and select “0703 Switch Print Screen”. Press “Printer”...
  • Page 206 PAGE: 5/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 15-Mar-12 RD074054 Correction 5 2. Installation > Main Machine > Checking the Print Quality > Front and Rear Image Density Check Enter “Adjustment Settings for Operators” and then select “0703 Switch Print Screen”...
  • Page 207 echnical ulletin PAGE: 1/2 Model: Date: No.: Punch Unit PU5020 (D449) 26-Mar-12 RD074055 Subject: Prepared by: Dip Switch setting for the Punch Unit Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 208 echnical ulletin PAGE: 2/2 Model: Date: No.: Punch Unit PU5020 (D449) 26-Mar-12 RD074055 Settings The Model Value Image D449-00, D449-01 (JP) 1- OFF 2- OFF D449-17 (NA) 1- OFF 2- ON D449-27 (EU/AP) 1- ON 2- OFF D449-28 (Scandinavia) 1- ON 2- ON...
  • Page 209 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 26-Mar-12 RD074056 Subject: Prepared by: Troubleshooting Jam20 H. Matsui From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 210 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 26-Mar-12 RD074056 Metal coupling [D] interlocks with the molded coupling [C] when the Right Drawer Unit is set in the mainframe. However, if the couplings are not engaged properly, the metal coupling cannot retract (in the direction indicated with the arrow in the photo above right) and absorb the pressure when the drawer is pushed in, causing damage to the molded coupling.
  • Page 211 PAGE: 1/5 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 28-Mar-12 RD074057 Subject: Check procedure to prevent Jams 80, 97, 98 Prepared by: K. Tsutsui From: 1 PP Tech Service Sec. PP Tech Service Dept Classification: Troubleshooting Part information Action required...
  • Page 212 PAGE: 2/5 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 28-Mar-12 RD074057 Hook the spring so that the tip Tip of the spring is is positioned at the bottom. positioned at the top. Hook the spring so that the tip Tip of the spring is is positioned at the bottom.
  • Page 213 PAGE: 3/5 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 28-Mar-12 RD074057 Taurus-C1 Serial Numbers of the Affected units : RAC Serial # Nov. Serial # Nov. Serial # Dec. Serial # Dec. Serial # Jan. Serial # Feb. V9015800132 V9015900056...
  • Page 214 PAGE: 4/5 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 28-Mar-12 RD074057 Taurus-C1 Serial Numbers of the Affected units : RE Serial # Nov. Serial # Nov. Serial # Dec. Serial # Dec. Serial # Jan. Serial # Jan. V9013400033 V9013500045...
  • Page 215 PAGE: 5/5 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 28-Mar-12 RD074057 Modification is implemented on units with the following serial numbers for RA: V90112***** and V91112***** Modification is implemented on units with the following serial numbers for all regions: S98112******...
  • Page 216 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-Mar-12 RD074058 Subject: Prepared by: Initial check results of SP3025 & SP3031 Kazuya Tsutsui From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 217 PAGE: 1/3 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 02-Apr-12 RD074059 Subject: Taurus-C1/P1: Procedure for Adjusting the CIS LED Prepared by: S. Sasaki upon Replacement of the CIS Unit From: 1 PP Tech Service Sec. PP Tech Service Dept Classification:...
  • Page 218 PAGE: 2/3 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 02-Apr-12 RD074059 3. Insert one sheet of plain white paper in the paper path. Use either of the following paper: * Hammermill Fore MP White (20lb) LT * Data Copy Everyday Printing (80g/m...
  • Page 219 PAGE: 3/3 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 02-Apr-12 RD074059 4. Install the new CIS unit, attach the cover, and push the right drawer back into the machine. 5. Turn on the machine. Note Disregard the Jam001 that will be initiated when the machine is turned on in this state.
  • Page 220 echnical ulletin PAGE: 1/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 Subject: Prepared by: Complete Registration Procedure (Skew/ Image T. Komori Position/ Front and Back Correction) From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive...
  • Page 221 echnical ulletin PAGE: 2/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 1. Skew Correction 1-1. Perpendicularity adjustment 1-2. Achieving the recommended skew range 1-3. Possible problems involving skew correction 1-1. Perpendicularity adjustment Check if skew in the main scan direction is exhibited on a BK image. The corner indicated in red should be 90 degrees.
  • Page 222 echnical ulletin PAGE: 3/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 1-2. Achieving the recommended skew range The procedure for achieving the recommended skew range is in the Field Service Manual (2. Installation > Main Machine > Checking the Print Quality > Image Skew Check). The following is a supplementary explanation.
  • Page 223 echnical ulletin PAGE: 4/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 6. Make another 5 copies, this time in duplex. 7. Measure the locations (c) and (d) on the back side and calculate the skew amount “(c) – (d)” to check if skew is within the recommended range +/- 0.4mm. 8.
  • Page 224 echnical ulletin PAGE: 5/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 1-3. Possible problems involving skew correction (a) Skew Variation 1. Confirm secure fastening of the 2 screws to prevent the adjustor plate from loosening. If fastening the screws cannot securely fix the plate, insert a material, for instance an OHP transparency to stabilize the plate.
  • Page 225 echnical ulletin PAGE: 6/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 How to check whether the unit is installed with the modified shift roller or the unmodified shift roller 1. Insert your hand in the opening indicated with the red circle in the photo below and turn the cam clockwise until the shift roller separates and the registration gate moves to its highest position.
  • Page 226 echnical ulletin PAGE: 7/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 3. If there is no gap, the unit is installed with the unmodified shift roller and therefore should be replaced with the modified one. If a gap is confirmed, the unit is installed with the modified shift roller.
  • Page 227 echnical ulletin PAGE: 8/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 2. Image Position Adjustment This procedure aims to position the images on the front (1 ) and back (2 ) sides in duplex printing to the center of the paper. Adjustments are available for paper of all different weights.
  • Page 228 echnical ulletin PAGE: 9/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 6. Add X to the current values in SP1003. SP1003 Current Value Modified Value Side-to-Side Reg Tray 1 Tray 2 Duplex Tray A3LCT Tray 3 A3LCT Tray 4 A3LCT Tray 5 Bypass Tray Example: SP1003...
  • Page 229 echnical ulletin PAGE: 10/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 11. Measure the distances (b1) and (b2) on all 5 copies and calculate the average. 12. Divide the average value by “2” and subtract that value from the current SP1501-001 value.
  • Page 230 echnical ulletin PAGE: 11/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 3. Front Back Magnification Correction (IMSS) The procedure described in this section is capable of achieving the best registration performance available on the Taurus, which perfectly aligns the front and back image positions with the center of the paper for EVERY Custom Paper by adjusting the image size using the IMSS function.
  • Page 231 echnical ulletin PAGE: 12/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 1. Input the default values for the following SPs. NOTE: If the values currently applied are not defaults and need to be changed to carry out this procedure, make sure to reset them to the original value after completing the procedure. SP2103-001 (Erase Margin Adj: LE Width) 4.0 mm (default) SP2103-003 (Erase Margin Adj: Left)
  • Page 232 echnical ulletin PAGE: 13/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 9. Print 11 copies of the test pattern Trimming Area (SP2109-003-14) in b/w, duplex. Select 5 copies from the 4 to the 8 among the 11. NOTE: The first and the last 3 copies will not be used due to the higher possibility of image size variations.
  • Page 233 echnical ulletin PAGE: 14/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 Appendix 1 : Summary of registration settings available on the Engine and the Fiery controller Settings on the Fiery controller should be made AFTER completing the procedures described in this bulletin. Adjustments made in the opposite order will be lost. The table below summarizes the registration adjustments available for users.
  • Page 234 echnical ulletin PAGE: 15/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 Fig 2. “Image Shift” in Job Properties...
  • Page 235 echnical ulletin PAGE: 16/16 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Apr-12 RD074060 Appendix 2: Specification of SP1001-001 ~ 007, and SP1501-001 Margin registration in the sub scan direction is adjusted at the factory for each paper weight as shown in the following table. Therefore, modifying the value of SP1501-001 will modify the value X for paper of all different weights.
  • Page 236 echnical ulletin PAGE: 1/1 Model: Date: No.: Katana-C2 (Bellini-C4) 13-Apr-12 RD059099 Subject: Service Manual Correction (Booklet Finisher Prepared by: J. Ohno SR5020 Punch Unit) From: PP Tech Service Dept., 1st PP Tech Service Sect. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 237 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Apr.-12 RD074061 Subject: Important notes on high Heating Roller temperature Prepared by: K. Tsutsui settings higher than 180 degrees C From: 1st PP Tech Service Section, PP Tech Service Dep. Classification: Troubleshooting Part information Action required...
  • Page 238 PAGE: 1/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-12 RD074062 Subject: Prepared by: Summary of Troubleshooting Banding/Jitter Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 239 PAGE: 2/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-12 RD074062 Overview Symptom Image 2-3mm pitch banding 50mm pitch banding Approx 50mm Shock Jitter Note: The position of the band varies depending on the color, paper size, PPM of the machine (65 or 75), and simplex...
  • Page 240 PAGE: 1/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-12 RD074062 Details 1. 2-3mm pitch banding Symptom 2-3mm pitch banding Vibration caused by the drum charge roller gear Cause Remove the drum charge roller gear, if installed. Action Note: Newer machines/PCDU contain the modification and the gear is not installed.
  • Page 241 PAGE: 2/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-12 RD074062 2. 50mm pitch banding Symptom 50mm pitch banding Cause Incorrect engagement of the development unit gear and the mainframe gear causes uneven revolution of the development roller. Action Align the mark on the development unit gear with the mark on the mainframe gear.
  • Page 242 PAGE: 3/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-12 RD074062 3. Shock jitter on thick paper Symptom Shock jitter on thick paper Cause Vibration of the ITB caused by either of the following: 1. Shock generated when the leading edge enters the nip of the ITB and the PTR 2.
  • Page 243 PAGE: 1/4 Model: Date: No.: Taurus-C1a/C1b 11-May-12 RD074063 Subject: Prepared by: Procedure for Replacing the Development Roller S. Sasaki Seals From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 244 PAGE: 2/4 Model: Date: No.: Taurus-C1a/C1b 11-May-12 RD074063 View from the side 3. Attach the new seal while checking the following points. ! Corner [D] of the seal aligns with the corner [E] of the frame. ! Area [A] of the seal is firmly attached.
  • Page 245 PAGE: 3/4 Model: Date: No.: Taurus-C1a/C1b 11-May-12 RD074063 Replacing the REAR Seal (D0743344: SEAL:DEVELOPMENT ROLLER:REAR) 1. Pull out the PCDU according to your service manual in the section: 4. Replacement and Adjustments > Common Procedures > Removing PCDUs 2.
  • Page 246 PAGE: 4/4 Model: Date: No.: Taurus-C1a/C1b 11-May-12 RD074063 View from the side 3. Attach the new seal while checking the following points. ! Corner [D] of the seal aligns with the corner [E] of the frame. ! Area [B] of the seal is firmly attached.
  • Page 247 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 11-May-12 RD074064 Subject: Prepared by: Troubleshooting Low Image Density at Trailing Edge Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical...
  • Page 248 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074065 Subject: Troubleshooting Blackout of operation panel display & Prepared by: K. Tsutsui SC575 From: 1st PP Tech Service Section, PP Tech Service Dep. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 249 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074065 ACTION For symptoms #1 & #2 Check the harness routing of the Pressure Roller Fan. If the harnesses are not routed correctly, replace with a new fan. Carefully replace the fan so that the harnesses stay within the groove.
  • Page 250 echnical ulletin PAGE: 1/3 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074066 Subject: Troubleshooting Stuck Lock Lever of the Drum Prepared by: K. Tsutsui Cleaning Unit From: 1st PP Tech Service Section, PP Tech Service Dep. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 251 echnical ulletin PAGE: 2/3 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074066 Affected lot: 92 units S/N of the possibly affected Development Units in NA V9025100005 V9025100085 V9025100116 V9125100038 V9025100006 V9025100087 V9025100117 V9125100039 V9025100007 V9025100088 V9025100119 V9125100040 V9025100008 V9025100092 V9025100120 V9125100041 V9025100009 V9025100093 V9025100121...
  • Page 252 echnical ulletin PAGE: 3/3 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074066 ACTION Check the serial number and apply grease to the hollow shaft of the drum cleaning unit as described below at your next service visit. Use the following grease: 52039502 Silicone Grease G-501 Grease must NOT spill over the edge.
  • Page 253 echnical ulletin PAGE: 1/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a RTB Re-issue The items in bold italics have been added. Subject: Troubleshooting Jam 033 Prepared by: K. Tsutsui From: 1st PP Tech Service Section, PP Tech Service Dep. Classification: Troubleshooting Part information...
  • Page 254 echnical ulletin PAGE: 2/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a Serial Numbers of the Affected Units EU: 50 units NA: 50 units S98-10700036 V90-13500037 S98-10600002 V90-15900009 S98-10600006 V90-15900010 S98-10800020 V90-13500048 S98-10600008 V90-15900021 S98-10800023 V90-13500052 S98-10800026 V90-13500062 S98-10700003 V90-16000020 S98-10700036 V90-16000022 S98-10800034...
  • Page 255 echnical ulletin PAGE: 3/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a Replacement procedure 1. Pull out the left drawer and open the rear boxes according to the procedures in the service manual. 2. Remove the center stay. (Screw x3) 3.
  • Page 256 echnical ulletin PAGE: 4/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a 4. Lower the TDCU board. (Screw x4) 5. Release 7 clamps. 6. Move the sets of tubes to the sides and disconnect 1 connector.
  • Page 257 echnical ulletin PAGE: 5/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a 7. Remove the duct. (Screw x5) Work carefully to avoid damage to the connector circled in red. 8. Disconnect 2 connectors, release 1 harness clamp, and remove the harness. NOTE: Hold the board with your opposing hand when disconnecting the connectors.
  • Page 258 echnical ulletin PAGE: 6/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a 10. Remove the fusing drive unit. (Screw x3) 11. Remove the pulley. (E-type retaining ring x1) 12. Remove the 3 screws to separate the shaft assembly from the motor bracket. IMPORTANT: As you separate the components after removing the 3 screws, hold it so that the motor bracket faces up and the shaft assembly faces down to prevent the gears from dropping.
  • Page 259 echnical ulletin PAGE: 7/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a 13. Hold the components as shown in the photo, and remove the gears and the shaft together from the black case. 14. Take grease from the gear installed in the old shaft assembly and apply it to the gear installed in the new shaft assembly.
  • Page 260 echnical ulletin PAGE: 8/8 Reissued:20-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 16-May-12 RD074068a 16. Follow the steps in reverse order to reassemble the unit and complete the procedure. Keep the following points in mind when reassembling the unit. When installing the duct, make sure that the harness is routed between the duct and the bracket.
  • Page 261 PAGE: 1/2 Reissued:04-Jun-12 Model: Date: No.: Taurus-C1a/C1b 21-May-12 RD074070a RTB Reissue The items in bold italics were added. Subject: Prepared by: Procedure for Replacing the Entrance Seal of the S. Sasaki Toner Supply Port of the Development Unit.
  • Page 262 PAGE: 2/2 Reissued:04-Jun-12 Model: Date: No.: Taurus-C1a/C1b 21-May-12 RD074070a 3. Attach the new seal by aligning the corners. Note Make sure the seal does not interfere with the mylar [A].
  • Page 263 PAGE: 1/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-May-12 RD074069 Subject: Prepared by: Procedure for Attaching the Anti-Toner Leak Spring Shinnosuke Sasaki Plate From: 1st PP Tech Service Sec., PP Tech Service Dept., Troubleshooting Part information Action required Classification:...
  • Page 264 PAGE: 2/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-May-12 RD074069 2. To remove the filter [A], pinch the 2 parts circled in red and lift up. Remove the filter gently to prevent developer from spilling.
  • Page 265 PAGE: 3/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-May-12 RD074069 3. Attach the spring plate. First, hook the spring plate to the edge of the case as shown in the above photo indicated with the red line. Then, slightly lift up the black frame with your opposing hand, and snap the spring...
  • Page 266 PAGE: 4/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 21-May-12 RD074069 4. Check to make sure that the spring plate has been attached to the correct position, directly above the center hole. If the position needs to be adjusted, carefully slide the spring plate without detaching it from the case.
  • Page 267 echnical ulletin PAGE: 1/4 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-May-12 RD074071 Subject: Prepared by: SC39X (Drum Motor Error) Hiroaki H Matsui From: PP Service Planning Department 1G Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 268 echnical ulletin PAGE: 2/4 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-May-12 RD074071 Action As a preventative maintenance, take the following action even for machines that currently do not exhibit SC39X. Apply lubricant powder (Zinc Stearate Powder; P/N D0159501) on the drum cleaning blade for units that meet any of the following conditions: 1.
  • Page 269 echnical ulletin PAGE: 3/4 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-May-12 RD074071 2. Remove the drum cleaning unit [A] from the PCDU. (Refer to the field service manual.) 3. Use your fingers to apply the Zinc Stearate Powder on the front cleaning blade edge and seal [C] AND rear cleaning blade edge and seal [B].
  • Page 270 echnical ulletin PAGE: 4/4 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-May-12 RD074071 4. Repeat the above procedure for all stations and do the following SPs to complete the procedure. SP3032-03: Execute Cleaning Setup: Exe: K SP3032-04: Execute Cleaning Setup: Exe: C SP3032-05: Execute Cleaning Setup: Exe: M SP3032-06: Execute Cleaning Setup: Exe: Y...
  • Page 271 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 04-Jun-12 RD074072 Subject: Prepared by: Troubleshooting: Damaged development roller Hiroaki H Matsui seals and SC39X (Drum Motor Error) From: PP Service Planning Department 1G Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path...
  • Page 272 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 04-Jun-12 RD074072 Action 1. Remove the damaged seal and replace it with a new seal by referring to the table below which describes the logged SC and the corresponding stations. Logged SC Corresponding Color Station SC390 or SC395 Replace the seals for the K-Development Unit.
  • Page 273 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 07-June-12 RD074073 Subject: Prepared by: Additional Procedure for Replacing Laser Unit Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 274 echnical ulletin PAGE: 1/4 Reissued:13-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 14-Oct-11 RD074023b RTB Reissued The description in bold italic was added. Subject: Prepared by: High Frequency Banding in 2.5-2.7mm Pitch T. Komori (caused by drum cleaning unit; temporal) From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 275 echnical ulletin PAGE: 2/4 Reissued:13-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 14-Oct-11 RD074023b RD074023a We have found one more part that must be replaced together in the temporary action. Please be informed that this notice is temporary; until January 2012. (Additional announcement will follow around December 2011.) Symptom High frequency banding (2.5-2.7mm pitch banding) Cause...
  • Page 276 echnical ulletin PAGE: 3/4 Reissued:13-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 14-Oct-11 RD074023b Temporary Action Make a service visit for ALL field machines to check the PM counter current value of drum cleaning unit for all stations. a) If the current counter is less than 67500 (150kP) or new-installs, change the SP settings (PM alert) as shown below.
  • Page 277 echnical ulletin PAGE: 4/4 Reissued:13-Jun-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 14-Oct-11 RD074023b CAUTION ! Make sure to clear the PM counter “#Cleaning Unit” when either the components or the entire drum cleaning unit is replaced. This will clear the counters for the entire drum cleaning unit components (cleaning blade, brush roller, coating bar, apply blade, joint and gears).
  • Page 278 PAGE: 1/6 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 13-Jun-12 RD074074 Subject: Modification Program for Temp Yield Change of Prepared by: T. Komori the Drum Cleaning Unit (RD074023a) From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 279 PAGE: 2/6 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 13-Jun-12 RD074074 Affected Mainframe (D074/D075/M044) Manufactured before March, 2012 Pro C651EX Pro C751EX Pro C751 (D074) (D075) (M044) ~ V90250xxxxx ~ V91250xxxxx ~ S98202xxxxx ~ V90226xxxxx ~ V91226xxxxx ~ S98202xxxxx ~ V90202xxxxx...
  • Page 280 PAGE: 3/6 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 13-Jun-12 RD074074 Modification Procedure Follow the procedure below for EVERY drum cleaning unit; YMCK. Work time is approximately 10 minutes per station. 1. Removing the component parts 1-1. Remove the apply blade.
  • Page 281 PAGE: 4/6 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 13-Jun-12 RD074074 2. Attaching the new mylar D0742477 2-1. Peel off the 2 mylars and clean the surface with solvent. NOTE: Work carefully to prevent solvent from adhering to areas other than the surface of the stay, for instance, the urethane sponge.
  • Page 282 PAGE: 5/6 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 13-Jun-12 RD074074 3. Replacing with the modified sheet mylar D0742437 3-1. Remove the sheet mylar from the frame and clean the surface with solvent so that adhesives do not remain. NOTE...
  • Page 283 PAGE: 6/6 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075/M044) 13-Jun-12 RD074074 4. Attaching the anti-vibration cushion D0742510 Clean the surface of the back side of the frame and attach the cushions D0742510 (2 pcs) as shown below. 11mm IMPORTANT These cushions need to be replaced at 300Kp (135000m) as they will wear over time.
  • Page 284 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Jun-12 RD074075 Subject: Addition of the PM item on the drum cleaning unit Prepared by: T. Komori From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 285 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Jun-12 RD074075 The PM part indicated in red in the table below was added to the. Revise your service manual in the section: 3. Preventive Maintenance > PM Tables for Main Machines > Around the drum Part Action Comments...
  • Page 286 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jun-12 RD074076 Subject: SP Setting for saddled-stitched booklets with Prepared by: K. Tsutsui custom size paper From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 287 echnical ulletin PAGE: 1/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d RTB Reissue The descriptions in italic were added or modified. Subject: Prepared by: Troubleshooting Shock Jitter Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification:...
  • Page 288 echnical ulletin PAGE: 2/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Troubleshooting Shock-jitter of Cause 1 There are several actions you can take to troubleshoot shock jitter. The actions and the order they are implemented will vary depending on the color mode (B/W or Full Color) and the paper weight (thicker or thinner than Paper Weight 4) in use, as shown in the table below.
  • Page 289 echnical ulletin PAGE: 3/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Action a: Adjusting the Paper Transfer Gap For each affected paper: 1. Specify “Small Gap” for “Custom Paper Advanced Settings: 43 Adjust Gap of Paper Transfer:”. 2. Specify “Large Gap” ONLY if sufficient improvement cannot be confirmed from the previous adjustment.
  • Page 290 echnical ulletin PAGE: 4/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Action b: Fine adjustment of the drum motor speed 1. Fine adjust the drum motor speed (default: 0.2%) with the following SPs. Set to a value (-0.1, 0, or 0.1 %) that generates the best result. SP1010-001 to 004 SP1011-001 to 004 SP1012-001 to 004...
  • Page 291 echnical ulletin PAGE: 5/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Troubleshooting Shock-jitter of Cause 2 Apply the following Engine firmware versions. Copier: Version 1.60:04 (D0745404G) or newer Printer: Version 1.60:04 (M0445404E) or newer Applying the above firmware versions will modify the default value of SP1022-002 from -70 to -120.
  • Page 292 echnical ulletin PAGE: 6/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Appendices – Location of the Shock Jitter for each Paper Size The following illustrations and tables show where the shock jitter appears on each standard size paper in simplex printing. The values in the table are distances (millimeters) from the leading edge of the paper.
  • Page 293 echnical ulletin PAGE: 7/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d SRA3 Cause 1 Cause 2 Cause 1 Cause 2...
  • Page 294 echnical ulletin PAGE: 8/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d 11 x 17 (DLT) Cause 1 Cause 2 Cause 1 Cause 2...
  • Page 295 echnical ulletin PAGE: 9/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d 12 x 18 Cause 1 Cause 2 Cause 1 Cause 2...
  • Page 296 echnical ulletin PAGE: 10/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Cause 1 Cause 2 Cause 1 Cause 2...
  • Page 297 echnical ulletin PAGE: 11/11 Reissued:04-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Oct-11 RD074029d Cause 1 Cause 2 Cause 1 Cause 2...
  • Page 298 PAGE: 1/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Subject: Prepared by: Resolving SC36x - Toner Density Sensor Error Shinnosuke Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical...
  • Page 299 PAGE: 2/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Procedure 1. Identify the affected color by the SC-code(s). SC360 or 365: K SC361 or 366: C SC362 or 367: M SC363 or 368: Y 2. Turn the main switch off.
  • Page 300 PAGE: 3/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 6. Press “01 SP Data Check” at the top of the screen. 7. If the firmware has a bug, “NG” will appear on the display along with the affected SP...
  • Page 301 PAGE: 4/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Note The application checks the SP values and displays “NG” when the following conditions are met. The value(s) of SP3-711/712/713/714-001 to 006 or 008 are “0” The value(s) of SP3-711/712/713/714-013 are “2.45”...
  • Page 302 PAGE: 5/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Do the following procedure when “01 SP Data Check” results in “NG”. 1. Press the “HST Settings” button of the affected color. The following example assumes that K is the affected color.
  • Page 303 PAGE: 6/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 2. Enter the default value of the SP and press #. Here, we will assume that 36 is the default value. Note The default value refers to the value set at the factory, which can be obtained by either of...
  • Page 304 PAGE: 7/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Factory set TD Sensor values can be found in SMCs that had been output from machines prior to exhibiting the symptom: SC36x. Contact RCL via your supervisor. RCL can provide you the factory set TD Sensor default values for development units that are installed in the mainframe at the factory.
  • Page 305 PAGE: 8/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Note As described in page 5, it is NOT a problem if SP 3711-007 is “0”. 4. Turn the main switch off 5. Remove the SD card from the SD slot.
  • Page 306 PAGE: 9/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jul-12 RD074079 Do the following procedure when the “01 SP Data Check” results in “Completed”. 1. Turn the main switch off. 2. Remove the SD card from the SD slot. 3. Check the harness of the TD Sensor for any damage or loose connection.
  • Page 307 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 18-Jul-12 RD074080 Subject: Notes on handling the PCDU Prepared by: K. Tsutsui From: PP Tech Service Sec., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 308 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 18-Jul-12 RD074080 Detail A spring plate is attached to the black plastic plate to conduct electrical bias from the heat sink to the development roller. Removing this black plastic plate could bend the spring plate and disable proper contact between the spring plate and the heat sink, resulting in the sharp bands at 50mm intervals like the picture on P.1.
  • Page 309 echnical ulletin PAGE: 1/9 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081b RTB Reissue The item in bold italics were corrected or added. Subject: Prepared by: Troubleshooting SC26x A.Tajima From: 1st PP Technical Service Section Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 310 echnical ulletin PAGE: 2/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 Note If the unit has experienced SC285, check if SC496 (Music Sensor Error) and/or SC499 (Paper Transfer Control Error) is (are) also been logged in the SMC logging report (SP7402).
  • Page 311 echnical ulletin PAGE: 3/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 Replacement Procedure 1. Clear the skew motor adjustment values by executing the following SP(s). Clear only the values of the stations that require the replacement of the skew motor. SP2104-31 Clear Revision C (for Cyan) SP2104-32 Clear Revision M (for Magenta) SP2104-33 Clear Revision Y (for Yellow)
  • Page 312 echnical ulletin PAGE: 4/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 3. Remove the upper cover [A]. (screw x6) 4. Disconnect the harness. Note The board can be deformed easily. Treat the board with care when disconnecting the harness.
  • Page 313 echnical ulletin PAGE: 5/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 5. Remove the 2 screws. 6. Remove the skew motor [B] with pliers while you push the lens [A] away from the skew motor with a screwdriver.
  • Page 314 echnical ulletin PAGE: 6/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 Installation Connect the harness to the new skew motor. Note The board can be deformed easily. Treat the board with care when connecting the harness. Install the new skew motor. (screw x2) Close the upper cover.
  • Page 315 echnical ulletin PAGE: 7/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 After the installation Execute SP 3011-4 (Full MUSIC).  a. If MUSIC succeeds without any SC, do the following : a-1. Clear the skew motor adjustment value by executing the following SPs. Clear only the values of the stations that have a new skew motor.
  • Page 316 echnical ulletin PAGE: 8/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 Checking the Image Quality Do the following procedure to check if the laser unit contains any dust. For the copier model (D074/D075) Print out the “Shading” test pattern from SP4417-001: 18 and check the image quality. Make sure there are no image defects possibly caused by foreign materials in the laser unit.
  • Page 317 echnical ulletin PAGE: 9/9 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 20-Jul-12 RD074081 Then change the density as shown below. 8. Check the image quality. Make sure there are no image defects possibly caused by foreign materials in the laser unit. If the test pattern exhibits an image defect (for example, white lines), take out the affected laser unit and check for any foreign substances on the mirrors, the lenses, or the toner shield glass.
  • Page 318 echnical ulletin PAGE: 1/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a RTB Reissue The description in bold italic was changed. Subject: Prepared by: Troubleshooting for FR density difference (operator T. Komori side /opposite operator side) From: PP Service Planning Department 1G Troubleshooting Part information Action required...
  • Page 319 echnical ulletin PAGE: 2/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a...
  • Page 320 echnical ulletin PAGE: 3/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a 2. Check the following: Which color shows the uneven density? Which side is the density lower, the top or the bottom? 3. If the density is lower at the bottom than the top, reduce the value in the Skilled Operators Menu for the affected color.
  • Page 321 echnical ulletin PAGE: 4/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a *Note: Details of this adjustment Skilled Operators Menu #0205 adjusts the shading co-efficient, which is set to a value lower at the front and higher at the rear as indicated by the dotted-line in the diagram below (this value was adjusted at the factory).
  • Page 322 echnical ulletin PAGE: 5/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a Procedure B Shading Co-efficient Adjustment in SP Mode As explained on the previous page, shading co-efficient adjustment in the SP mode is done manually for each area and could be somewhat complicated. You may want to take note of the following before carrying out this procedure.
  • Page 323 echnical ulletin PAGE: 6/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a 5. Refer to the table below and modify SP2152-xxx according to the measurement of X in order to have the same density at the top edge and the bottom. X mm Color SP2152-xxx...
  • Page 324 echnical ulletin PAGE: 7/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a 9. Finally, modify the intermediate values so that the values are proportionally increased between the values determined in step 5 and step 8. Do not change SP2152-016, 080, 048, 112.
  • Page 325 echnical ulletin PAGE: 8/8 Reissued:30-Jul-12 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 11-Jul-12 RD074078a The following shows an example of an SP setting in Step 9. If X and Y for Black is in the range 152 ~ 163, set SP2152-001/002 to 0.950, and set SP2152-030/031 to 1.100.
  • Page 326 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 26-Jul-12 RD074082 Subject: Prepared by: Procedure for Replacing the Entrance Seal of the Shinnosuke Sasaki Development Unit From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required...
  • Page 327 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 30-Jul-12 RD074083 Subject: Confirming proper setting of the drum charge roller Prepared by: K. Tsutsui to prevent black streaks in the sub scan direction From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 328 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 30-Jul-12 RD074083 View of the charge roller at the rear Action Until the modified packaging becomes available for the drum charge units, when replacing the drum charge unit, make sure that the charge roller is set properly on the holder, exhibiting no gap between the bushing and the holder.
  • Page 329 PAGE: 1/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 06-Aug-12 RD074084 Subject: Prepared by: Part Changes of Fusing Unit Heaters S. Sasaki From: 1st PP Technical Service Section Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path...
  • Page 330 PAGE: 2/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 06-Aug-12 RD074084 Fusing lamp AX440322 AX440326 (HEATER:HEAT ROLLER:A:230V:650W/870W) Bracket (front) D0744173 D0744343 (HOLDER:HEATER:HEAT ROLLER:FRONT)
  • Page 331 PAGE: 3/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 06-Aug-12 RD074084 Bracket (rear) D0744174 D0744344 (HOLDER:HEATER:H EAT ROLLER:REAR)
  • Page 332 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Aug-12 RD074085 Subject: Prepared by: Note on proper installation of the pressure roller Shinnosuke Sasaki bearing From: 1st PP Tech Service Sec., PP Tech Service Dept., Troubleshooting Part information Action required...
  • Page 333 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 08-Aug-12 RD074086 Subject: Prepared by: Service Manual Correction (SP Adjustments After Shinnosuke Sasaki Laser Unit Replacement) From: 1st PP Tech Service Sec., PP Tech Service Dept., Troubleshooting Part information Action required...
  • Page 334 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 10-Aug-2012 RD074087 Subject: Field Service Manual Correction (SC682) Prepared by: S. Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 335 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074087 Sub code Type Details (Symptom, Possible Cause, Troubleshooting Procedures) The system made three unsuccessful attempts to communicate with the ID chip on the PCU. Replace PCU Cycle the machine off/on ID Chip at PCU communication error: No Error Codes The system made three unsuccessful attempts to communicate with the 036 ~ 039...
  • Page 336 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Aug-2012 RD074088 Subject: Field Service Manual Correction (SC395-398) Prepared by: S. Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 337 PAGE: 1/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 Subject: Prepared by: Troubleshooting Lines/Streaks caused by toner offset Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 338 PAGE: 2/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 1. Lines/streaks caused by Ribs This chart shows the locations on the paper where it contacts the ribs. The numbers indicate the distance (mm) from the center of the paper.
  • Page 339 PAGE: 3/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 Ribs possibly causing the toner offset Location Photos [A] Paper Cooling Unit (Lever D3) [B] Left drawer: Straight-through paper path (Lever D4) [C] Inverter path (Lever D5)
  • Page 340 PAGE: 4/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 [D] Purge Tray [E] Duplex path of the left drawer (Lever Z3) [F] [G] Right drawer: Upper: Duplex path (Lever Z4)
  • Page 341 PAGE: 5/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 2. Lines/streaks caused by Rollers and Strippers This chart shows the locations on the paper where it contacts the rollers or strippers. The numbers indicate the distance (mm) from the center of the paper.
  • Page 342 PAGE: 6/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 Rollers and Strippers possibly causing the toner offset Position Image [A] Exit Junction Gates (Lever D4) [B] [C] Inverter path (Lever D5) [D] Paper Cooling Unit (Lever D3)
  • Page 343 PAGE: 7/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 [E] Inverter path (Lever D5) [F] Duplex path (Lever Z3) (Lever Z4)
  • Page 344 PAGE: 8/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 3. Lines/streaks caused by Fusing Stripper Plates Cause 1: Fusing Belt Stripper Plate Glossy streaks caused by the Fusing Belt Stripper Plate appear on the paper at the following locations.
  • Page 345 PAGE: 9/9 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 13-Sep-12 RD074089 Cause 2: Pressure Roller Stripper Plate Glossy streaks caused by Pressure Roller strippers appear on the paper at the following locations. Distance from the center of the paper (mm) 40.5...
  • Page 346 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 13-Sep-2012 RD074090 Subject: Field Service Manual Correction (SC684) Prepared by: S. Sasaki From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 347 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1 (D074/D075) 22-Jun-2011 RD074090 Sub code Type Details (Symptom, Possible Cause, Troubleshooting Procedures) Replace the Fusing Unit Cycle the machine off/on Fusing Unit ID Chip Error: Communication Time Out The system made three unsuccessful attempts to communicate with the fusing unit ID chip.
  • Page 348 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Sep-12 RD074091 Subject: Troubleshooting “Tone Jumps (uneven gradation)” Prepared by T. Komori From: 1st PP Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 349 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 24-Sep-12 RD074091 Procedure B Maintain the settings made in the previous “Procedure A” and change the screen settings on the Fiery controller (Job Properties – Image – Halftone Mode). Change the default setting “200 Dot + Fine Text (1200dpi)” to one of the following and check the results.
  • Page 350 echnical ulletin PAGE: 1/2 Reissued:24-Sep-13 Model: Date: No.: RD074092c Taurus-C1/P1 26-Sep-12 RTB Reissue The item in red bold italics was added. Subject: Procedure before/after replacing NVRAM Prepared by: S. Sasaki From: PP Tech Service Sec., PP Tech Service Dept. Troubleshooting Part information Action required Classification:...
  • Page 351 echnical ulletin PAGE: 2/2 Reissued:24-Sep-13 Model: Date: No.: RD074092c Taurus-C1/P1 26-Sep-12 BEFORE replacing the NVRAM Print out a full SMC before executing the following procedure in case upload/download fails. 2. Turn off the main switch. 3. Remove the SD card slot cover on the back of the machine. 4.
  • Page 352 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 12-Nov-2012 RD074093 Subject: Notes on De-curl unit Jam Removal Prepared by: K. Tsutsui From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive...
  • Page 353 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 12-Nov-2012 RD074093 Old: D0744609 New (modified): D0744610 Attach the decal (p/n: D0744549) here. The strips of the PTFE sheet are longer on the modified guide plate.
  • Page 354 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 26-Nov-2012 RD074094 Subject: SC672 Description Added to FSM Prepared by: K. Tsutsui From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 355 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 10-Dec-2012 RD074095 Subject: Request for initial check upon new site installs (RA Prepared by: K. Tsutsui only) From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 356 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 13-Dec-2012 RD074096 Subject: TCRU/ORU user manual correction Prepared by: K. Tsutsui From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 357 echnical ulletin PAGE: 1/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 RTB Reissue The item in red bold italics was added. Subject: Prepared by: AC transfer function T. Komori From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required...
  • Page 358 echnical ulletin PAGE: 2/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 S/N identification Refer to the 3-digit portion of the s/n indicated and underlined in red in the table below. For units manufactured in Dec 2012 and later, installed with the AC power supply unit to support the AC transfer function, the 3-digit number is one of the following numbers or larger.
  • Page 359 echnical ulletin PAGE: 3/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 2. Installation procedure Required Parts D0746371 BRACKET:POWER PACK:R:ASS'Y • D0743814 CASE:OPPOSED:TRANSFER ROLLER:REAR:PRESS FIT • D0743816 CASE:OPPOSED:TRANSFER ROLLER:FRONT:PRESS FIT • D0743809 SPRING PLATE:ELECTRODE:OPPOSED:TRANSFER ROLLER • 036030006N SCREW - M3X6 •...
  • Page 360 echnical ulletin PAGE: 4/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 • Hardware installation procedure 1. Remove the image transfer belt. 2. Attach the brackets. 3. Lift up the YMC image transfer rollers by rotating the gears. 4. Remove the M and C image transfer rollers. 5.
  • Page 361 echnical ulletin PAGE: 5/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 6. Disconnect and release the connectors and clamps [1] ~ [21] to remove plate [A]. 7. Remove plate [A]. * Work carefully to prevent the harnesses from getting caught when removing plate [A].
  • Page 362 echnical ulletin PAGE: 6/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 8. Unlock the three clamps [1] ~ [3] and disconnect cable [B]. [1], [2] : Re-lock these clamps after disconnecting cable [B]. : Keep this clamp unlocked. 9. Set D0746371 onto the frame and fasten with 03603006N (M3x6, 4pcs)
  • Page 363 echnical ulletin PAGE: 7/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 10. Connect cable [B] (disconnected in step 8) to the connector on the far left of D0746371 (circled in green). Connect the connector routing from D0746371 to the connector where cable [B] was originally connected to (circled in pink).
  • Page 364 echnical ulletin PAGE: 8/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 14. Remove the following screws, spring and harness. 15. Remove the snap-fit and pulley, and then replace bracket [C] with D0743816. 16. Replace the bracket on the rear side with D0743814 / D0743809. 17.
  • Page 365 echnical ulletin PAGE: 9/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 Software installation procedure 1. Upgrade the firmware to the following versions or newer. Firmware Copier Printer System/Copy 1.11 1.06 System (D0745773K) (M0445773F) 1.11 1.11 OpePanel.EXP (D074688*C) (D074689*B) 1.07 1.07 Language Install (D0746890B)
  • Page 366 echnical ulletin PAGE: 10/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 3. Limitations of the AC transfer function Item Details/Actions Optimized print setting [Details] Depending on the surface of the media (depth of texture), toner varies depends on paper may spread unevenly (white spot or too dense toner on indentations in surface and image type the paper surface.
  • Page 367 echnical ulletin PAGE: 11/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 [Actions] Separation bias can be turned on from SP mode, but it may cause stripes on images as a side effect. SP2-825-*** (1 page) 0=>80 page)0=>80 SP2-826-*** (2 Limited usability on [Details] AC transfer cannot be turned on by just selecting paper type Paper Library...
  • Page 368 echnical ulletin PAGE: 12/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 3. Troubleshooting for field engineers The following descriptions; (a) – (d) are possible problems when using the AC transfer function on textured media. (a) Lighter / Denser Image at Indentations (see limitation list #1) Symptom Cause The paper transfer roller voltage for "Txt Ppr: Ppr Trns Voltage:B&W/FC: Side 1/2"...
  • Page 369 echnical ulletin PAGE: 13/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 (b) Thin paper jam (see limitation list #3, 4) Symptom Paper jam around the paper transfer area Cause The separation bias has been turned off for textured paper so that it does not interfere with the paper transfer current.
  • Page 370 echnical ulletin PAGE: 14/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 (c) Contamination on the back side (see limitation list #6) Symptom Toner off-set on the back of the paper Cause ID pattern which is created between sheets is not cleaned off well at the paper transfer section. This is likely to occur if: Over 200kP on the Paper Transfer Unit •...
  • Page 371 echnical ulletin PAGE: 15/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 (d) Dirty trailing edge of the paper every 20 mm (see limitation list #3, 4) Symptom Cause The separation bias has been turned off for textured paper so that it does not interfere with the paper transfer current.
  • Page 372 echnical ulletin PAGE: 16/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 4. Additional Description for TCRU/ORU Manuals The following description has been distributed as an additional note for TCRU/ORU manuals. Notes for Users As a result of changes to the specifications, this machine now has additional adjustment functions in "Custom Paper Settings for Administrators".
  • Page 373 echnical ulletin PAGE: 17/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 49: Txt Ppr: Ppr Trns Isolatn Voltag: Side 2 Adjust the separation voltage for paper transfer applied to side 2 when the profile of a textured paper (paper displayed as [Txt Textured***-*** gsm ***] in the paper library) is registered as a custom paper.
  • Page 374 echnical ulletin PAGE: 18/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 Additional Information on Troubleshooting This section explains how to troubleshoot problems by using additional adjustment functions. Read it in conjunction with 3, "Troubleshooting Image Quality Problems", and 4, "Troubleshooting Paper Delivery Problems".
  • Page 375 echnical ulletin PAGE: 19/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 If printing on a textured surface is dense 1. Decrease the paper transfer roller voltage for numbers 44 to 47 in "Advanced Settings" by 0.2 kV, and then print the image. 2.
  • Page 376 echnical ulletin PAGE: 20/20 Reissued:18-Feb-13 Model: Date: No.: RD074097c Taurus-C1/P1 (D074/D075/M044) 08-Jan-13 Textured paper: Back of paper soiled Cause: Cleaning of the paper transfer roller failed when the profile of a textured paper (paper displayed as [Txt Textured***-*** gsm ***] in the paper library) had been registered as a custom paper, causing the back of the paper to become soiled.
  • Page 377 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 17-Jan-2013 RD074098 Subject: Prepared by: Jig for developer replacement Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 378 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 17-Jan-2013 RD074098 How to use the jig Fit the jig to the auger coupling [B] and turn it clockwise as you dispose of remaining developer in the development unit. Note The auger does not have to be turned counterclockwise to loosen the developer inside the...
  • Page 379 PAGE: 1/3 Reissued: 18-Mar-13 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074014g RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware Release Note: Paper Library AP S. Sasaki From: 1st PP Tech Service Sect., PP Tech Service Dept.
  • Page 380 PAGE: 2/3 Reissued: 18-Mar-13 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074014g Version Modified Points or Symptom Corrected 8.00 Added 4 textured media parameters to the format Added 30 media (including 3 textured media) Corrected Media Name from UPM DIGI Finesse gloss to Digi Finesse gloss: RE0022, RE0023, RE0024, RE0025 7.00...
  • Page 381 PAGE: 3/3 Reissued: 18-Mar-13 Model: Taurus-C1a/C1b Date: 20-Jun-11 No.: RD074014g Image Feed Image Quality Others Overall Rank Permanence Performance NOTE The Printer model and the Copier model apply different MQP files; no interchangeability. Install the MQP file according to the machine. The software is designed to reject the installation if the MQP file does not correspond with the machine.
  • Page 382 Other (Firmware) Tier 2 This RTB has been issued to announce the release of the data files (xxx.mqp) and the Media List used for the Paper Library on the Taurus-C1a/C1b. MQP files and Media Lists are confidential information. Version Program No.
  • Page 383 About the MQP file The MQP file only contains data for media ranked ‘A’ in overall evaluation. Installing the MQP file into the Taurus-C1a/C1b will enable application of the media from the Paper Library. Description Rank Better than the product Spec.(Only Image Quality)
  • Page 384 PAGE: 3/3 Reissued: 18-Mar-13 Model: Taurus-C1a/C1b Date: No.: RD074067c 16-May-12 Follow this procedure to install the Paper Library data. 1. Create a folder in the root directory of an SD card and name the folder "mqp". 2. Copy the paper database file into the "mqp" folder, and then rename the copied file "library.mqp".
  • Page 385 PAGE: 1/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Apr-13 RD074101 Subject: Prepared by: Notes on re-installing the drum cleaning unit Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical...
  • Page 386 PAGE: 2/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Apr-13 RD074101 Note 2: Procedure required BEFORE re-installing the drum cleaning unit 1. If clumps of lubricant (as shown in the photo above) are observed on the drum surface, gently wipe off with dry cloth. Remaining clumps of lubricant could get caught between the cleaning blade and drum surface, and cause incomplete cleaning and generate streaks on the output images.
  • Page 387 PAGE: 3/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Apr-13 RD074101 Note 3: Procedure required AFTER replacing the drum cleaning blade, the entire cleaning unit, or drum Make sure to do the following procedure as described in the service manual in the section: Replacement and Adjustments >...
  • Page 388 PAGE: 4/4 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Apr-13 RD074101 Correction: Procedure required AFTER replacing the drum cleaning blade, the entire cleaning unit, or drum (TCRU manual) Advise your customers the following correction of the TCRU manual regarding the procedure for installing the charge roller unit, described in “Replacement Guide: TCRU”...
  • Page 389 echnical ulletin PAGE: 1/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Troubleshooting : Color Misalignment, SC22X, A. Tajiama SC26X, SC285, SC446, SC499, SC496 From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting...
  • Page 390 echnical ulletin PAGE: 2/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c Troubleshooting various SCs exhibited after replacing the Laser Unit Various SCs that are issued after replacing the laser unit are due to incorrect positioning of the lens and/or the mirror installed in the laser unit. Do the procedures ”a-2” and/or “d”...
  • Page 391 echnical ulletin PAGE: 3/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c Symptom Possible causes Check procedure Action (1) Loose ITB encoder (1) Check the condition (1) Clean the encoder or shaft of the ITB encoder shaft. the encoder drive gear e) SC446 as necessary.
  • Page 392 echnical ulletin PAGE: 4/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c 2. Turn on the machine power and wait until the system reaches “ready” status. 3. Do SP2-912-001 (Encoder Sn: Adj Light). This SP adjusts the intensity of the LED beam emitted from the ITB speed sensors;...
  • Page 393 echnical ulletin PAGE: 5/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c Action 2 Work through this flowchart.
  • Page 394 echnical ulletin PAGE: 6/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c If you need to replace the skew motor, refer to sections “Replacement Procedure”, “After the installation”, and “Checking Quality” of RTB RD074081. P/N: D0741920 DC STEPPER MOTOR:ASS'Y Action 3 If the encoder shaft is loosen or broken, replace the encoder shaft with a new one.
  • Page 395 echnical ulletin PAGE: 7/7 Reissued: 30-Nov-15 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 02-Mar-12 RD074050c The ITB drive shaft shown below is the NEW type without the ribs; flatted edge. The ITB drive shaft shown above is the former type without the ribs; flatted edge. Please be noted that this former type has a higher chance to loosen the encoder shaft.
  • Page 396 PAGE: 1/4 Reissued:31-May-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 09-May-13 RD074102a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Revised developer removal procedure H. Inenaga From: PP Tech Service Dept., 1st PP Tech Service Sect.
  • Page 397 PAGE: 2/4 Reissued:31-May-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 09-May-13 RD074102a 2. Refer to the table below and determine the print volume according to the toner density confirmed in the previous step. The actual printing will be done in step 5.
  • Page 398 PAGE: 3/4 Reissued:31-May-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 09-May-13 RD074102a 5. Print the test pattern on A4/LT or A3/DLT for the volume determined in step 2. 6. Check the latest toner density in SP3-200-001~004. (Table 1) 7. Repeat steps 1~5 until you achieve the standard toner density 7%±0.5.
  • Page 399 PAGE: 4/4 Reissued:31-May-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 09-May-13 RD074102a PART 2: Revised Developer Removal Procedure The developer removal procedure described in the current FSM has been revised as follows to allow more thorough removal of the old developer.
  • Page 400 echnical ulletin PAGE: 1/2 Reissued: 06-Jan-15 Model: Date: No.: 26-Aug-11 RD074021f Taurus-C1 RTB Reissue The items in bold italics have been corrected or added. Subject: Prepared by: Firmware Release Note: Java VM v7 UpdateTool S. Sasaki From: 1st PP Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 401 echnical ulletin PAGE: 2/2 Reissued: 06-Jan-15 Model: Date: No.: 26-Aug-11 RD074021f Taurus-C1 Version Modified Points or Symptom Corrected Saved passwords cannot be retrieved properly and causes application authentication failure. SDK application installation infrequently results in the disappearance of a previously installed SDK application if multiple embedded programs are installed.
  • Page 402 PAGE: 1/4 Reissued:1-Oct-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 27-May-13 RD074104a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Procedure for doctor gap cleaning Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept.,...
  • Page 403 PAGE: 2/4 Reissued:1-Oct-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 27-May-13 RD074104a Doctor Gap Cleaning Procedure 1. Remove the casing. (Screw x3) 2. Tilt the unit 90 degrees so that the left side (viewed from the front) faces the bottom, then rotate the dev roller in the direction indicated with the arrow (counterclockwise viewed from rear) until the loose developer on the roller surface is cleaned off.
  • Page 404 PAGE: 3/4 Reissued:1-Oct-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 27-May-13 RD074104a 4. Slide the tool from right to left. Keep the tool level as you slide it to prevent scratches on the development roller. NOTE Both ends of the tool can be used. Locate the hole on the tool. Slide the tool from Right Left when inserting the end having the hole.
  • Page 405 PAGE: 4/4 Reissued:1-Oct-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 27-May-13 RD074104a IMPORTANT Make sure to note the following points to prevent scratches on the surface of the development roller. DO NOT push and pull the tool. DO NOT press the tool against the dev roller with your thumb.
  • Page 406 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 29-May-13 RD074105 Subject: Prepared by: Important notes on drum lubricant bar H. Inenaga maintenance From: PP Tech Service Dept., 1st PP Tech Service Sect. Troubleshooting Part information Action required Classification: Mechanical...
  • Page 407 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 16-May-13 RD074103 Subject: Prepared by: Service Manual Correction (PM parts in Image Shinnosuke Sasaki Transfer Unit) From: 1st PP Tech Service Sec., PP Tech Service Dept., Troubleshooting Part information Action required...
  • Page 408 PAGE: 1/6 Reissued:3-Jul-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-13 RD074099a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Modifications on the Development Unit S. Sasaki From: 1st Tech Service Sect., PP Tech Service Dept.
  • Page 409 PAGE: 2/6 Reissued:3-Jul-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-13 RD074099a 2. Explanation of each modification 2-1. Anti-fluctuation (latest modification) – D0742304 Several components were modified to enhance the stability of the doctor gap and position gap. Modification purpose...
  • Page 410 PAGE: 3/6 Reissued:3-Jul-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-13 RD074099a [B] Reinforced housing A tension pole was added in between the development unit housing and PCU housing to secure consistency in the position gap. PCU housing Dev unit housing...
  • Page 411 PAGE: 4/6 Reissued:3-Jul-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-13 RD074099a 2-2. Thin-coated Development Roller - D0742302 The surface coating layer on the development roller was made thinner in this modification to gain higher tolerance against developer deterioration. Modification purpose...
  • Page 412 PAGE: 5/6 Reissued:3-Jul-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-13 RD074099a 2-3. New Doctor Blade - D0742303 The position of the magnetic plate on the doctor blade was changed in this modification. Modification purpose To reduce the chances of generating the image quality issue known as “in-track lines”...
  • Page 413 PAGE: 6/6 Reissued:3-Jul-13 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Jan-13 RD074099a 3. How to Identify the Modification Versions You can identify the modified dev unit by its serial number, which is shown on the top of the PCDU front panel as indicated in red in the photo below.
  • Page 414 echnical ulletin PAGE: 1/2 Reissued:27-Sep-13 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 18-Oct.-2011 RD074024a RTB Reissue The items in bold italics were corrected or added. Subject: Troubleshooting non-printed white areas caused Prepared by: K. Tsutsui by condensation From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 415 echnical ulletin PAGE: 2/2 Reissued:27-Sep-13 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 18-Oct.-2011 RD074024a Notes on the Anti-condensation Function (SP1-945-018) 1) Enabling the anti-condensation function activates the 2 exhaust fans on the left side of the machine during warm-up and idling, if the temperature is below 20 degrees Celsius.
  • Page 416 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 30-Sep-13 RD074108 Subject: Prepared by: Change of Toner Pre Near End alert timing S. Sasaki From: PP Tech Service Dept., 1st PP Tech Service Sect. Troubleshooting Part information Action required Classification:...
  • Page 417 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 30-Sep-13 RD074108 Background The “pre near end” alert message that appears on the operation panel tends to cause the users to replace the toner bottler earlier than the appropriate timing, and as a result, toner could be wasted.
  • Page 418 PAGE: 1/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Oct-13 RD074109 Subject: Prepared by: Notes on installing PU5020 (D449) on Shinnosuke Sasaki SR5030/SR5040 (D513/512) From: 1st PP Tech Service Sec., PP Tech Service Dept., Troubleshooting Part information Action required Classification:...
  • Page 419 PAGE: 2/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Oct-13 RD074109 Procedure 1. Remove the motor protector plate [A]. (screw x4) 2. Remove the brackets [A] and [B]. (screw x2)
  • Page 420 PAGE: 3/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Oct-13 RD074109 3. Remove the spring [A]. 4. Remove the bracket and gear [A]. (screw x2) 5. Detach the motor bracket from the punch unit.
  • Page 421 PAGE: 4/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Oct-13 RD074109 6. Remove the motor. (screw x2) 7. Remove the gear. (E-type retaining ring x1) 8. Remove the harness clamp. 9. Attach the new bracket to the punch unit by following the above steps in reverse order.
  • Page 422 PAGE: 5/5 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 1-Oct-13 RD074109 Note Only one of the two screw holes is used to attach the bracket to the finisher. The screw hole to be used will depend on the finisher type; old or new.
  • Page 423 PAGE: 1/6 Reissued:25-Oct-13 Model: Date: No.: Taurus-C1a/C1b 27-Jun-13 RD074107a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: P/N of Fusing Belt Polisher S. Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept.,...
  • Page 424 PAGE: 2/6 Reissued:25-Oct-13 Model: Date: No.: Taurus-C1a/C1b 27-Jun-13 RD074107a How to polish the fusing belt 1. Pull out the fusing unit from the mainframe. 2. Open the top cover of the fusing unit. 3. Place a sheet of paper to prevent damage to the guide plate.
  • Page 425 PAGE: 3/6 Reissued:25-Oct-13 Model: Date: No.: Taurus-C1a/C1b 27-Jun-13 RD074107a Rub the polisher against the fusing belt to smooth out the scratches. Rotate the fusing belt Rub approximately 30 times for each location, clockwise to polish the entire belt. although this will depend on the condition of the scratches.
  • Page 426 PAGE: 4/6 Reissued:25-Oct-13 Model: Date: No.: Taurus-C1a/C1b 27-Jun-13 RD074107a Note Use the knob stored in the front cover to rotate the fusing belt. If the knob is lost, it can be ordered with p/n D0744225. 5. After polishing the fusing belt, put back the fusing unit.
  • Page 427 PAGE: 5/6 Reissued:25-Oct-13 Model: Date: No.: Taurus-C1a/C1b 27-Jun-13 RD074107a How to change the web 1. Remove the screw on the bottom side of the tool with a screwdriver. 2. Remove the metal plate from the tool [A]. 3. Peel off the used web (M0774288 WEB:POLISH:FUSING).
  • Page 428 PAGE: 6/6 Reissued:25-Oct-13 Model: Date: No.: Taurus-C1a/C1b 27-Jun-13 RD074107a 4. Peel off the seals on both ends of the new web and wrap the web around the tool. 5. Attach the metal plate to the tool. 6. Fasten the bottom screw to complete the procedure.
  • Page 429 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 5-Dec-13 RD074110 Subject: Prepared by: Correct procedure to reset PM parts counter for Shinnosuke Sasaki customer sites using 2 or more fusing units per machine From: 1st PP Tech Service Sec., PP Tech Service Dept.,...
  • Page 430 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 5-Dec-13 RD074110 IMPORTANT Make sure to follow the above procedure. The PM counter values and calculations will be disrupted, if you failed to follow the procedure. The above procedure does not have to be performed if the fusing units are simply swapped without replacing any PM parts.
  • Page 431 PAGE: 1/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Jan-14 RD074111 Subject: Prepared by: Troubleshooting SC449 Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path...
  • Page 432 PAGE: 2/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Jan-14 RD074111 Solution 1. Open the front doors and remove the inner covers of the ITB unit. 2. Cheat the front door sensors by inserting a folded piece of paper, etc.
  • Page 433 PAGE: 3/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Jan-14 RD074111 5. Turn the main switch off and try rotating the shaft clockwise with a flathead screwdriver or a coin. If the shaft rotates smoothly: The harness from the motor could be damaged or not connected properly.
  • Page 434 echnical ulletin PAGE: 1/6 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 27-Jan-13 RD074112 Subject: Troubleshooting White Line (along the paper feed Prepared by: S. Sasaki direction) From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 435 echnical ulletin PAGE: 2/6 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 27-Jan-13 RD074112 Solution Start Print 3 sheets of full-page solid and Compare Cyan and Green prints 1-dot halftone (SP2-109-003: "26" to verify if the white line is and "11") on A3/DLT in black, cyan, caused by the Y dev unit.
  • Page 436 echnical ulletin PAGE: 3/6 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 27-Jan-13 RD074112 Note 1: Cleaning the bottom side of the dev unit Pull out the affected dev unit, and then clean the bottom side with a piece of cloth and alcohol. Foreign substance Note 2: Cleaning the doctor gap...
  • Page 437 echnical ulletin PAGE: 4/6 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 27-Jan-13 RD074112 Insert the cleaning tool into the doctor gap from the corner without the angled tab. The tab scrapes off the toner/dust adhered to the doctor blade as you slide the tool across the doctor gap.
  • Page 438 echnical ulletin PAGE: 5/6 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 27-Jan-13 RD074112 NOTE Both ends of the tool can be used. Locate the hole in the tool. Slide the tool from Right  Left when inserting the end having the hole. Slide the tool from Left  Right when using the other end. Use this end to slide Right ...
  • Page 439 echnical ulletin PAGE: 6/6 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 27-Jan-13 RD074112 After sliding the tool across the doctor gap, remove the tool from the corner without the tab. NOTES  For a thorough cleaning of the doctor gap, it is recommended to repeat the cleaning procedure 2 ~ 3 times.
  • Page 440 echnical ulletin PAGE: 1/2 Reissued:30-Jan-14 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 3-Jul-12 RD074077b RTB Reissue The items in were added. bold italics Subject: Notes on cleaning the ITB speed sensors Prepared by: K. Tsutsui From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 441 echnical ulletin PAGE: 2/2 Reissued:30-Jan-14 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 3-Jul-12 RD074077b Procedure required after cleaning the ITB speed sensors Make sure to perform the following procedure after cleaning the ITB speed sensors. 1. Turn on the machine power and wait until it becomes ready. 2.
  • Page 442 echnical ulletin PAGE: 1/2 Reissued:30-Jan-14 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 06-Feb-13 RD074100a RTB Reissue The items in were corrected or added. bold italics Subject: Service Manual Correction (After ITB replacement) Prepared by: S. Sasaki From: PP Tech Service Sec., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 443 echnical ulletin PAGE: 2/2 Reissued:30-Jan-14 Model: Date: No.: Taurus C1/P1 (D074/D075/M044) 06-Feb-13 RD074100a 12. Open the front door again and execute SP2920-001 (Steering Control Roller: Initialize Belt Position). Note: Keep the ITB cleaning blades retracted to run this SP. 13. After pressing the “Execute” button, close the front door to run the above SP. 14.
  • Page 444 PAGE: 1/2 Reissued:16-May-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Feb-14 RD074113a RTB Reissue The items in bold italics were corrected or added. Subject: Mottling: Troubleshooting Prepared by: Hiroshi Inenaga From: PP Tech Service Dept., 1st PP Tech Service Sect.
  • Page 445 PAGE: 2/2 Reissued:16-May-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Feb-14 RD074113a 5. Print the image showing the problem. Has the problem been resolved? Yes : Go to step 6. No : Go to step 7. 6. Use the SMC tool (p/n: M0779509) and SP Check Sheet to verify the “average image coverage ratio”...
  • Page 446 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Feb-14 RD074114 Subject: Prepared by: Service manual correction: Troubleshooting “Tiger Hiroshi Inenaga Stripes” From: PP Tech Service Dept., 1st PP Tech Service Sect. Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 447 PAGE: 1/3 Reissued:31-Mar-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 26-Jan-14 RD074115b RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: SD card for SMC data download/analysis S. Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept.,...
  • Page 448 PAGE: 2/3 Reissued:27-Mar-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 26-Jan-14 RD074115a 4. Touch “01 SP->SD” on the operation panel and wait approximately 1 minute for the download process to complete. 5. When successfully downloaded, the operation panel displays “Completed”. Touch “[Start] Confirm” to exit.
  • Page 449 PAGE: 3/3 Reissued:27-Mar-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 26-Jan-14 RD074115a How to use the Excel file for SMC analysis Loading the SMC data to the Excel spreadsheets 1. Open the Excel analysis file. 2. Go to the sheet “Load SMC data”.
  • Page 450 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 7-Mar-14 RD074116 Subject: Prepared by: Part change - Right cover S. Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 451 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 7-Mar-14 RD074116 D0745923 COVER:POWER SUPPLY CORD Attach the bracket to cover the exposed part.
  • Page 452 PAGE: 1/1 Reissued:28-Mar-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 19-Mar-14 RD074117a RTB Reissue The items with a line drawn through them have been deleted. Subject: Prepared by: <Spec change> Storage of web cleaning unit PM Akihiro Tajima counter on the fusing ID chip From: 1st PP Tech Service Sec., PP Tech Service Dept.,...

  • Page 453: Table Of Contents

    PAGE: 1/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Subject: Prepared by: Collection of troubleshooting procedures to help Hiroshi Inenaga reduce service cost From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required...

  • Page 454: White Line (Along The Paper Feed Direction)

    PAGE: 2/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 1. White Line (along feed direction) Excerpt from RTB #RD074112 Symptom White line appears along the feed direction. White Line is especially noticeable with solid or 1-dot halftone images.
  • Page 455 PAGE: 3/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Flow chart Start Print 3 sheets of full-page solid and Compare Cyan and Green prints 1-dot halftone (SP2-109-003: "26" to verify if the white line is and "11") on A3/DLT in black, cyan, caused by the Y dev unit.
  • Page 456 PAGE: 4/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Note 1: Cleaning the bottom side of the dev unit Pull out the affected dev unit, and then clean the bottom side with a piece of cloth and alcohol. Foreign substance Note 2: Cleaning the doctor gap Remove the casing.
  • Page 457 Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Insert the cleaning tool into the doctor gap from the corner without the angled tab. The tab scrapes off the toner/dust adhered to the doctor blade as you slide the tool across the doctor gap.

  • Page 458: Sc396 - Sc399

    PAGE: 6/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 2. SC396 – SC399 Excerpt from RTB #RD074101  Three important notes to prevent SC39x (drum motor errors) and the image quality issue known as in-track lines  Correction of the TCRU manual regarding the procedure for re-installing the drum cleaning unit Note 1: Always replace the drum lubrication bar and drum lubrication roller as a set.
  • Page 459 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Note 2: Procedure required BEFORE re-installing the drum cleaning unit 1. If clumps of lubricant (as shown in the photo above) are observed on the drum surface, gently wipe off with dry cloth. Remaining clumps of lubricant could get caught between the cleaning blade and drum surface, causing incomplete cleaning and streaks on the printouts.
  • Page 460 PAGE: 8/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Note 3: Procedure required AFTER replacing the drum cleaning blade, cleaning unit, or drum Make sure to do the following procedure as described in the service manual in the section: Replacement and Adjustments >...
  • Page 461 PAGE: 9/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Correction: Procedure required AFTER replacing the drum cleaning blade, cleaning unit, or drum (TCRU manual) Advise your customers the following correction on the procedure for installing the charge roller unit, described in “Replacement Guide: TCRU” in the section: Charge Roller Unit and Cleaning Unit for PCU >...

  • Page 462: Mm Interval Banding

    PAGE: 10/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 3. 50mm interval Banding Excerpt from RTB #RD074019a Cause Cause Solution Drive gear and coupling gear Align the drive gear and of the development roller are coupling gear. (Step1) misaligned.
  • Page 463 PAGE: 11/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 <Note>  Increasing the value in SP3-820-022 will reduce the toner yield.  If the machine produces high P/J, the effect brought from this SP modification may not be enough.
  • Page 464 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Development roller drive gear – Coupling gear alignment procedure How to identify the marking on the Mainframe Drive Gear Slide out the PCDU and look for a white marking on the gear as shown in the photo below.
  • Page 465 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Align the white marking on the development unit gear to the white marking on the mainframe gear by turning the development unit gear counterclockwise. However, refer to the pink marking on the development unit gear, if marked in pink and white.

  • Page 466: Mottling

    PAGE: 14/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 4. Mottling Excerpt from RTB #RD074113 3.3.6 Mottling Mottling occurs in solid-filled areas. Cause  Printing on rough surfaced paper Normal  Continuously printing jobs of low toner coverage ...
  • Page 467 PAGE: 15/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 5. Print the image showing the problem. Has the problem resolved? Yes : Go to step 6. No : Go to step 7. 6. Use the SMC tool (p/n: M0779509) and SP Check Sheet to verify the “average image coverage ratio”...

  • Page 468: Tiger Stripes

    PAGE: 16/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 (described as “Wavy unevenness” in the field service manual) 5. Tiger Stripes Excerpt from RTB #RD074114 Background If the machine is used in a way that disables optimum refreshing of the developer mixture, for example,...

  • Page 469: Glossy Lines Caused By Belt Scratches

    PAGE: 17/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 6. Glossy lines (vertical lines) caused by belt scratches Excerpt from RTB #RD074107a Use the polisher to smoothen the scratches on the fusing belt caused by paper edges. This will prevent “vertical lines”.
  • Page 470 PAGE: 18/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 How to polish the fusing belt 1. Pull out the fusing unit from the mainframe. 2. Open the top cover of the fusing unit. 3. Place a sheet of paper to prevent damages to the guide plate.
  • Page 471 PAGE: 19/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Rub the polisher against the fusing belt to smooth out the scratches. Rotate the fusing belt clockwise to polish the entire belt. Rub approximately 30 times for each location, although this will depend on the condition of the scratches.
  • Page 472 PAGE: 20/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 NOTE Use the knob stored in the front cover to rotate the fusing belt. If the knob is lost, it can be ordered with p/n D0744225. 5. After polishing the fusing belt, put back the fusing unit.

  • Page 473: Sc449

    PAGE: 21/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 7. SC449 Excerpt from RTB #RD074111 Symptom SC449 (ITB Tray Lift [K] error) occurs and the Bk image transfer roller remains up against the drum even when releasing the ITB lock lever or turning the screw to lower the right half of the ITB unit according to the procedure described in following section of the field service manual.
  • Page 474 PAGE: 22/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Solution 1. Open the front doors and remove the inner covers of the ITB unit. 2. Cheat the front door sensors by inserting a folded piece of paper, etc. 3. Turn the main switch on with the front doors open.
  • Page 475 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 5. Turn the main switch off and try rotating the shaft clockwise with a flathead screwdriver or a coin. If the shaft rotates smoothly: The harness from the motor could be damaged or not connected properly.

  • Page 476: Sc499

    PAGE: 24/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 8. SC499 Excerpt from RTB #RD074077a  False procedure carried out to clean the ITB speed sensor could cause SC499-40. Following are important notes on the correct procedure. 1. Use a vacuum cleaner or an air blower to remove dust.
  • Page 477 PAGE: 25/25 Model: Date: No.: RD074118 Taurus-C1a/C1b (D074/D075) 20-Mar-14 Procedure required after cleaning the ITB speed sensors Make sure to perform the following procedure after cleaning the ITB speed sensors. Execute SP2-912-001 (Encoder Sn:Adj Light: Adj Light Amt). Turn the main switch off and then on.
  • Page 478 PAGE: 1/2 Reissued:16-Apr-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 07-Jun-13 RD074106a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Notes on image transfer roller maintenance to H. Inenaga prevent mottled effect From: PP Tech Service Dept., 1st PP Tech Service Sect.
  • Page 479 PAGE: 2/2 Reissued:16-Apr-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 07-Jun-13 RD074106a Recommended Action When encountering the mottled effect, take the following actions in the order described. Action Result Checking PM parts OK: Finish. Check the PM counter and replace any part(s) NG: Go to Step 2.
  • Page 480 PAGE: 1/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: New and comprehensive procedures required after S. Sasaki Drum and Drum cleaning unit maintenance From: 1st PP Tech Service Sec., PP Tech Service Dept.,...
  • Page 481 PAGE: 2/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a What needs to be done Do the new procedures A~B where indicated with the tick () which depend upon the maintenances performed for the drum and drum cleaning unit (1~6 and their combinations).
  • Page 482 PAGE: 3/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a Procedures A) Lubrication of the cleaning brush 1. Mix an equal amount of lubricant powder (D0159501) (zinc stearate) and yellow toner (D0159500). 2. Apply the mixture on the lubrication roller with a brush.
  • Page 483 PAGE: 4/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a B) Lubrication of the cleaning blade edges 1. Use your fingers to apply Zinc Stearate Powder (D0159501) on the following locations:  Front edge [C] and rear edge [B] of the cleaning blade ...
  • Page 484 PAGE: 5/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a C) Lubrication of the drum 1. Raise the drum bracket [1] and lubricate the exposed surface of the drum with the resin pad ( B1329700 The drum should look like this after lubrication.
  • Page 485 PAGE: 6/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a D) Manually rotating the drum 1. Insert the jigs [A] between the development unit and drum at both front and rear sides as shown in the photos below. This will prevent damages to the side seals when rotating the drum in the next step.
  • Page 486 PAGE: 7/7 Reissued:14-Oct-14 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074120a E) Initializing the cleaning unit 1. Turn the main power switch ON. 2. Reset the counter of the replaced unit or part(s). 3. Close the front doors. 4. Wait for about 5 minutes until you hear an audible beep and see "Ready" displayed on the operation panel.
  • Page 487 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 10-Jun-14 RD074121 Subject: Prepared by: Manual correction: SP4010 Akihiro Tajima From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 488 PAGE: 1/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jun-14 RD074122 Subject: Prepared by: Troubleshooting SC41x Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path...
  • Page 489 PAGE: 2/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jun-14 RD074122 Solution 1. Check if the connectors of the potential sensor relay board are disconnected, loose, or dirty.  If disconnected or loose, reconnect the connectors.  If dirty, clean the connectors.
  • Page 490 PAGE: 3/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 12-Jun-14 RD074122 NOTE The potential sensor is susceptible to voltage surge and strong impact. To prevent damage to the potential sensor, make sure to follow the notes below. A damaged potential sensor can cause SC41x (Potential Sensor Vd Error) or dirty background across the entire page.
  • Page 491 PAGE: 1/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a RTB Reissue This RTB has been updated. Please refer to RTB No. RGnene078. Subject: Prepared by: NICE Ver.2.0 Instruction Manual Hiroshi Inenaga, Akihiro Tajima From: 1st PP Tech Service Sec., PP Tech Service Dept.,...

  • Page 492: Introduction

    PAGE: 2/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 1. Introduction 1.1 Outline What is ‘NICE’? NICE stands for “Numerical Image Consistency Evaluation method” and is a software application purposed for troubleshooting the following image quality issues: ...

  • Page 493: Supported Models

    PAGE: 3/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a Service parts Item Model Parts description Pro C901/Pro C901S M0779518 SD-CARD:NICE:ARIES:ASS'Y Pro C651EX/Pro C751/Pro C751EX M0779511 SD-CARD:NICE:TAURUS:ASS'Y NICE SD card Pro C5100S/Pro C5110S M0779517 SD-CARD:NICE:CHARIS:ASS'Y MP C6502/MP C8002...

  • Page 494: How To Activate Nice

    PAGE: 4/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 2. How to activate NICE 2.1 Procedure 1. Turn off the machine power. 2. Insert the NICE SD card into the service slot on the GW controller box.
  • Page 495 PAGE: 5/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a Pro C5100/5110 series and MP C6502/8002 series Sub menu screen To display the sub menu screen, press the ‘SubMenu’ button at the lower right of the main menu screen.

  • Page 496: Common Procedure For Scanning Test Charts

    PAGE: 6/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 2.2 Common procedure for scanning test charts 1. Clean the contact glass and place the test chart so that the barcode printed on the chart positions to the left.

  • Page 497: Nice Software Applications

    PAGE: 7/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3. NICE Software Applications 3.1 SMC Tool The SMC Tool application contained in the NICE SD card is the same as ‘ELECTRICAL SMC TOOL’ (P/N: M0779509). See the following RTBs for details.
  • Page 498 PAGE: 8/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3.2.4 Procedure 1) Press ‘Registration adjustment’ on the main menu screen. 2) Press ‘Select’ to print out the test charts. 3 sheets of the following chart will be printed in duplex along with a few blank...
  • Page 499 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3) Place the chart on a table so that the side indicated ‘First’ faces up and fold the 4 corners along the dotted lines as shown below. Do the same for the remaining 2 charts.
  • Page 500 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 6) On the table, fold the 4 corners in the opposite direction so that the corners appear on the side indicated ‘Second’ faces up. Do the same for all 3 charts.

  • Page 501: Density Adjustment

    PAGE: 11/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3.3 FR density adjustment Software application ‘Image View FR’ contained in the NICE SD card calculates and corrects the shading value in main scan direction and applies the corrections to the engine (SP).
  • Page 502 PAGE: 12/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Prepare A3 or DLT size paper. 3.3.2 Adjustment procedure: Scanner calibration NICE ver.2.0 has been added with a new scanner calibration function for higher FR density adjustment precision.
  • Page 503 PAGE: 13/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3.3.3 Procedure 1. Insert the NICE SD card into the service slot on the controller box. 2. Press ‘Test Print: FR Adjust’ on the main menu screen.
  • Page 504 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 4. Press ‘Download to SD: FR SP’ to copy the engine SP data onto the SD card. SP data (SP2152-***) will be saved as a csv file on the SD card.
  • Page 505 PAGE: 15/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 8. Click ‘START’ and select the tiff files (75/30U tiff files) requiring the adjustment and csv file (s/n_shading_before.csv) saved on the SD card in step 4. 9. Wait until the calculation process completes.
  • Page 506 PAGE: 16/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a <Notes>  File names before/after ‘Image View FR’ adjustments File name BEFORE File name AFTER Notes adjustment adjustment SP data (S/N)_shading_befor yymmdd_hhmm_(S/N) BEFORE e.csv _shading_xbefore.csv adjustment (S/N)_shading_after_7 For Pro C901 and Pro C651/751, press 5.csv...

  • Page 507: Banding Analysis

    PAGE: 17/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3.4 Banding analysis 3.4.1 Objective Banding analysis is purposed to identify and list the parts/units that are suspected to be causing the banding. NOTE: Banding Analyzer and IQ Evaluation used for banding analysis DO NOT modify nor correct any of the machine settings.
  • Page 508 PAGE: 18/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3.4.2 Procedure 1. Insert the NICE SD card into the SD card slot on the controller box and wait for the NICE main menu screen to appear. 2. Place the NICE Calibration Chart (p/n: D0749671) on the contact glass and press ‘Scan: Banding’...
  • Page 509 PAGE: 19/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 4. Place the 75% chart(s) for the color(s) requiring analysis on the contact glass. And press ‘Scan: Banding’ to scan the chart(s). NOTE:  75% charts (Bk,C,M,Y): Using for analysis ...
  • Page 510 PAGE: 20/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 6. In the main window under Calibration, click START to display the Calibration window. 7. In the Calibration window, click the folder and select the Calibration Chart scanned and saved in step 2.
  • Page 511 PAGE: 21/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 8. Click START to start the calibration.
  • Page 512 PAGE: 22/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 9. Several windows will appear during the calibration process. After the calibration completes, press OK in the following window and select the folder you wish to save the XML file, which contains the color shading correction values calculated from the calibration results.
  • Page 513 PAGE: 23/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 13. Wait for the Banding Analyzer window to appear. Select the product model from Menu  Group  Products. 14. Click Run, then select and save the dat file created in step 12.

  • Page 514: Shock-Jitter Finder

    PAGE: 24/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a 3.5 Shock-jitter Finder The Shock-jitter Finder is a PC application that helps identify the problem causing the Shock-jitter. Launch the Shock-jitter Finder on your PC and specify the following information:...
  • Page 515 PAGE: 25/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  If a Shock-jitter sample is not in hand and the location of the Shock-jitter is unclear, press the ‘Test Print: Shock Jitter’ button from the NICE main menu screen to print out a test chart.
  • Page 516 PAGE: 26/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a Appendix - Print speed and Productivity reference table for Shock-jitter Finder  Pro C651/C751: Print Speed: Generic paper 0: High, 1: Middle, 2: Low Paper Paper Paper...
  • Page 517 PAGE: 27/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Pro C651/C751: Productivity: Generic paper Paper Paper Paper Paper weight Paper weight Paper weight Paper weight Paper type weight 1 weight 2 weight 3 1-988-101 1-988-102...
  • Page 518 PAGE: 28/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Pro C901: Print Speed: Generic paper SP1-161-101 ~ 124 (See table below.) 0: High (90ppm), 1: Low (70ppm) Paper Paper Paper Paper weight Paper weight Paper weight...
  • Page 519 PAGE: 29/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Pro C901: Productivity: Generic paper Paper Paper Paper Paper weight Paper weight Paper weight Paper weight Paper type weight 1 weight 2 weight 3 1-207-101 1-207-102...
  • Page 520 PAGE: 30/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Pro C5100S/C5110: Print Speed: Generic paper See the following 2 tables to identify the process speed (1st~5th). Paper Paper Paper Paper Paper Paper Paper Paper Paper type...
  • Page 521 PAGE: 31/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Pro C5100S/C5110: Print Speed: Custom paper SP1-986-001 ~ 100 0: Standard, 1: Medium Speed, 3: Low Pro C5100S Pro C5110 Process Speed 0: Standard 1st speed...
  • Page 522 PAGE: 32/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  Pro C5100S/C5110: Productivity: Generic paper Paper Paper Paper Paper Paper Paper Paper Paper Paper type weight 1 weight 2 weight 3 weight 4 weight 5 weight 6...
  • Page 523 PAGE: 33/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  MP C6502/C8002: Print Speed: See the following 2 tables to identify the process speed (1st~5th). Thin Plain Plain Middle Thick Thick Thick Thick Paper type Paper...
  • Page 524 PAGE: 34/34 Reissued: 4-Jun-15 Model: Date: No.: Taurus-C1a/C1b/P1 (D074/D075) 17-Jun-14 RD074119a  MP C6502/C8002: Productivity Thin Plain Plain Middle Thick Thick Thick Thick Paper type Paper Paper 1 Paper 2 Thick Paper 1 Paper 2 Paper 3 Paper 4...
  • Page 525 PAGE: 1/2 Reissued: 05-Aug-14 Model: Taurus-C1a/ Taurus -C1b/ Taurus-P1 Date: 20-Jun-11 No.: RD074011d RTB Reissue The items in bold italics have been corrected or added. Subject: Prepared by: Firmware Release Note: TDCU A. Tajima From: 1st PP Tech Service Sect., PP Tech Service Dept.
  • Page 526 PAGE: 2/2 Reissued: 05-Aug-14 Model: Taurus-C1a/ Taurus -C1b/ Taurus-P1 Date: 20-Jun-11 No.: RD074011d Version Modified Points or Symptom Corrected Buffer Pass Unit Type 5010 Trimmer Unit TR5040 Cover Interposer Tray CI5020 High Capacity Stacker SK5020 Ring Binder RB5010 Please make sure that ALL versions listed below are updated concurrently.
  • Page 527 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 8-Sep-14 RD074123 Subject: Prepared by: Bug in Engine Firmware Ver 1.67:04 and 1.68:04 S. Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required...
  • Page 528 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 8-Sep-14 RD074123 Affected Serial Numbers The following table shows the serial numbers of the machines that have been shipped out from the factory with the affected versions of the firmware installed and thus require the update at the time of installation.
  • Page 529 PAGE: 1/2 Reissued: 22-Jun-15 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Sep-14 RD074124a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Part Changes – Skew Adjustment Plate Cover A. Tajima From: 1st PP Tech Service Sec., PP Tech Service Dept.,...
  • Page 530 PAGE: 2/2 Reissued: 22-Jun-15 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Sep-14 RD074124a Old Type D0747844: INNER COVER:PULL OUT:RIGHT D0742601: PLATE:ADJUSTING PIN:GATE D0742601 D0747844 New Type INNER COVER:PULL OUT:RIGHT D1942991: INNER COVER:PULL OUT:RIGHT:SMALL D1942992: D1942989: PLATE:ADJUSTING PIN:GAT D1942989 D1942991 D1942992...
  • Page 531 PAGE: 1/2 Reissued: 18-Jul-17 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Sep-14 RD074125a RTB Reissue The items in bold italics were corrected or added. Subject: Prepared by: Part Changes – Exit Rollers / Guide plates Sayaka Katoh From: Sales Strategy Section，1st CP Business Department...
  • Page 532 PAGE: 2/2 Reissued: 18-Jul-17 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 24-Sep-14 RD074125a D1944614 D0744614 D0744615 D1944617 D0744594 D1944741 D0744614 D1944614 D1944905 M3791627 M3791627 D1944905...
  • Page 533 Other (Firmware) Tier 2 This RTB has been issued to announce the release of the data files (xxx.mqp) and the Media List used for the Paper Library on the Taurus-C1a/C1b. MQP files and Media Lists are confidential information. Version Program No.
  • Page 534 About the MQP file The MQP file only contains data for media ranked ‘A’ in overall evaluation. Installing the MQP file into the Taurus-C1a/C1b will enable application of the media from the Paper Library. Description Rank Better than the product Spec.
  • Page 535 No.: 20-Jun-11 RD074013j Taurus-C1a/C1b  The Printer model and the Copier model apply different MQP files; no interchangeability. Install the MQP file according to the machine. The software is designed to reject the installation if the MQP file does not correspond with the machine.
  • Page 536 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 5-Dec-14 RD074126 Subject: Prepared by: Troubleshooting black streaks along feed direction Yasutaka Yamada on back side From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required...
  • Page 537 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 5-Dec-14 RD074126 CAUSE If the PTR is scratched along the direction of its rotation, toner particles infiltrate into the scratches. PTR cleaning generates an opposite charge on these toner particles, causing the unwanted toner transfer to paper.
  • Page 538 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-Jan-15 RD074127 Subject: Prepared by: Preventing SC446 caused by new ITB/Cleaning unit A. Tajima From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical...
  • Page 539 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-Jan-15 RD074127 When replacing the ITB cleaning unit 1. Apply lubricant (p/n: D0159501) to the edge of the cleaning blade of the new cleaning unit using the blower brush (p/n: D0747960).
  • Page 540 PAGE: 1/2 Reissued: 11-May-15 Model: Date: No.: Taurus-C1a/C1b 15-Apr-15 RD074128 RTB Reissue Subject: Prepared by: Procedure for grease application to bearings in the N.Yoshida fuser unit From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information...
  • Page 541 PAGE: 2/2 Reissued: 11-May-15 Model: Date: No.: Taurus-C1a/C1b 15-Apr-15 RD074128 Bearing of pressure roller: 1. Remove the pressure roller from the fuser unit. 2. Remove the bearing from the pressure roller. 3. Grease the inner periphery of the new bearing and fix the bearing to the pressure roller.
  • Page 542 echnical ulletin PAGE: 1/4 Reissued: 15-May-15 Model: Date: No.: Taurus-C1/C1b 15-Apr-15 RD074129 RTB Reissue Subject: Prepared by: FSM revision: PM table of the fuser unit N.Yoshida From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 543 echnical ulletin PAGE: 2/4 Reissued: 15-May-15 Model: Date: No.: Taurus-C1/C1b 15-Apr-15 RD074129 Part Action Comments Pressure Roller Separation 300K Plate Fusing Unit Entrance Guide 300K Dry cloth to wipe Pressure Roller Contact 650K away paper dust, Thermistor toner Heating Roller Contact 650K Thermistor Hot Roller Contact Thermistor...
  • Page 544 echnical ulletin PAGE: 3/4 Reissued: 15-May-15 Model: Date: No.: Taurus-C1/C1b 15-Apr-15 RD074129 Fusing Roller 900K Apply grease S552R to the fusing roller bearings when replacing the fusing roller with a new one. Fusing Roller Bearings 900K Apply grease S552R to the new bearings when replaced.
  • Page 545 echnical ulletin PAGE: 4/4 Reissued: 15-May-15 Model: Date: No.: Taurus-C1/C1b 15-Apr-15 RD074129 Spring Plate 900K Fuser Belt Smoothing Cumulative operating time: 180  Roller minutes Number of times forced operation  possible (when not under auto- 490K execution) : 90 times Number of sheets when under auto- ...
  • Page 546 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b 20-Apr-15 RD074130 Subject: Prepared by: Stained background/Toner spots N.Yoshida From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive...
  • Page 547 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b 20-Apr-15 RD074130 3. Check the PM counter value of the developer of the affected color in SP7-621-***. If the counter value has reached 750k on the 65CPM model or 900k on the 75CPM model, do the next step.
  • Page 548 PAGE: 1/1 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 14-May-15 RD074131 Subject: Prepared by: Troubleshooting SC41x Shinnosuke Sasaki From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path...
  • Page 549 PAGE: 1/2 Model: Date: No.: Taurus-c1a/C1b 7-Sep-15 RD074132 Subject: Prepared by: Jam 97 or 98 when small paper is scanned. N.Yoshida From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 550 PAGE: 2/2 Model: Date: No.: Taurus-c1a/C1b 7-Sep-15 RD074132 2. Remove the CIS. (screw X 2) 3. Remove the paper dust on the surface of the CIS with a dry cloth. 4. Check whether the CIS is cloudy or not. See the attached photo in the “Cause” section for an example of a cloudy CIS.
  • Page 551 PAGE: 1/2 Model: Date: No.: Taurus-C1a/C1b 28-Dec-15 RD074133 Subject: Prepared by: FSM Correction: Troubleshooting Booklet Stack Feed J. Ohno Out Error From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical...
  • Page 552 PAGE: 2/2 Model: Date: No.: Taurus-C1a/C1b 28-Dec-15 RD074133 Corrected 5. Remove four screws on both sides of the booklet unit, and then move the guide plate [A] in the direction indicated with the blue arrow. Fold Plate Hold Bracket 6.
  • Page 553 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 15-Feb-16 RD074134 Subject: Prepared by: Field Service Manual Correction (SC465) J. Ohno From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 554 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 17-Feb-16 RD074135 Subject: Prepared by: FSM Correction: SC467 description added J. Ohno From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 555 PAGE: 1/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-16 RD074136 Subject: Prepared by: Akihiro Tajima Procedure of Replacing the Drive Roller From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 556 PAGE: 2/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-16 RD074136 How to Replace the Drive Roller NOTE: Photos shown in the following instruction are taken from the rear side of the ITB unit. Remove the drum stay [A]. (screw x3)
  • Page 557 PAGE: 3/3 Model: Date: No.: Taurus-C1a/C1b (D074/D075) 25-Apr-16 RD074136 Remove the housing drive [A]. (screw x3) 4. Remove the drive roller [A]. 5. Follow the above steps in reverse order to install the new drive roller.
  • Page 558 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 27-Jul-16 RD074137 Subject: Prepared by: FSM Correction: SP number correction in ITB A. Tajima Lubrication Blade replacement procedure From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 559 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1 4-Oct-16 RD074138 Subject: Prepared by: New service part – GUARD in the ITB unit Rie Shohda From: 1st PP Tech Service Sec., PP Tech Service Dept., Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 560 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1 4-Oct-16 RD074138 How to attach the GUARD:INTERMEDIATE TRANSFER (p/n: D0743832) 1. Clean the surface of the COVER:INTERMEDIATE TRANSFER:NO.1 where the guard attaches to with a cotton swab and alcohol. 2. Attach the guard to the edge of the cover as shown below. COVER:INTERMEDIATE TRANSFER:NO.1 Cut side GUARD:INTERMEDIATE TRANSFER...
  • Page 561 echnical ulletin PAGE: 1/1 Model: Date: 8 No.: Taurus-C1 -Feb-17 RD074139 Subject: Prepared by: Service Manual Correction: Add SP mode Rie SHohda From: 1st Tech Service Sect., PP Tech Service Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 562 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 28-APR-17 RD074140 Subject: Prepared by: Service Manual Correction: SC table added Sayaka Katoh From: Sales Strategy Section，1st CP Business Department Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 563 echnical ulletin PAGE: 1/2 Model: Date: No.: Taurus-C1/P1 7-May-18 RD074141 Subject: Prepared by: Part for Charge Roller Lever Replacement H Kawamura From: PPCS Section, CIP Product Quality Management Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 564 echnical ulletin PAGE: 2/2 Model: Date: No.: Taurus-C1/P1 7-May-18 RD074141 3. Put the new part on top of the broken lever. Note : Actual part is gray, not orange 4. Press down the lever – you should feel it click into place <Procedure for replacing the charge roller>...
  • Page 565 echnical ulletin PAGE: 1/1 Model: Date: No.: Taurus-C1/P1 (D074/D075/M044) 8-May-18 RD074142 Subject: Prepared by: FSM Correction: SC570 A. Tajima From: 1st Tech Service Sect., PP Tech Service Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety...
  • Page 566 echnical ulletin PAGE: 1/3 Model: Date: No.: Taurus-C2/P2 18-Apr-19 RD074143 Subject: Prepared by: Troubleshooting for recovery failure from toner end conditon H Kawamura From: PPCS Section, CIP Product Quality Management Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...

  • Page 567: Appendix 1

    echnical ulletin PAGE: 2/3 Model: Date: No.: Taurus-C2/P2 18-Apr-19 RD074143 ACTION 1. Remove the clogged toner from toner path. Specifically, the supply tube, toner pump, and sub hopper should be checked/cleaned. <Option> 2. Apply the attach firmware, with each region’s response Copier Version : Printer Version : IMPORTANT NOTES...
  • Page 568 echnical ulletin PAGE: 3/3 Model: Date: No.: Taurus-C2/P2 18-Apr-19 RD074143 Appendix 1. Technical Background The toner bottle ID chip has a counter that counts the number of failed attempts to resupply the toner from that bottle. This counter counts up when the machine cannot resupply the toner from the bottle.

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