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Ricoh GW Series Technical Bulletin
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Ricoh GW Series Technical Bulletin

Ricoh GW Series Technical Bulletin

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Model:
General (GW Models)
Subject:
Series Print Mode
From:
Technical Services Dept., GTS Division
Classification:
In response to complaints from customers that the intervals between jobs are too long
when sent in series, a new service switch has been added to improve performance.
New service switch:
Controller SP mode bit switch 2, bit 1
Series print mode On/Off
0: Off (default setting)
1: On
This switch has been added to the following GW models:
K-P1 (Kir-P1), J-P1, A-P3 (Adonis-P3), and R-C2 (Russian-C2).
Enter the printer controller service mode, access the bit switch settings display, then
change bit 1 of bit switch 2 to "1."
Change this bit to 1
00000000
Bit 7
Bit 0
Important: Do not change any other settings. (The default setting is "0.")
Descriptions:
Series print mode Off (default):
The machine starts to feed paper for the next job after the last sheet of the previous job
has fed out from the machine.
Series print mode On:
The machine starts to feed paper for the next job before the last sheet of the previous job
is fed out.
T
echnical
Troubleshooting
Mechanical
Paper path
Other (
)
B
ulletin
Date:
20-Dec-01
Prepared by:
Part information
Electrical
Transmit/receive
PAGE: 1/2
No.:
RGene010
K. Misugi
Action required
Service manual revision
Retrofit information

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Summary of Contents for Ricoh GW Series

  • Page 1 echnical ulletin PAGE: 1/2 Model: Date: No.: General (GW Models) 20-Dec-01 RGene010 Subject: Prepared by: Series Print Mode K. Misugi From: Technical Services Dept., GTS Division Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other ( In response to complaints from customers that the intervals between jobs are too long...
  • Page 2 echnical ulletin PAGE: 2/2 Model: Date: No.: General (GW Models) 20-Dec-01 RGene010 Conditions for use: For the Series Print mode to become effective, jobs must be sent from the same PC, using the same PDL and interface (Ethernet, IEEE1284, IEEE1394). Limitations: Series Print mode cannot be used when: - The above conditions are not met...
  • Page 3 echnical ulletin PAGE: 1/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Subject: Prepared by: Euro symbol not printed with PS driver T. Itoh From: Technical Services sec. Service Planning Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 4 echnical ulletin PAGE: 2/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Remarks for Temporary Solution 2: 1. Switching PDL to PS takes approximate 7 to 10 seconds. When PS fonts download is enabled, the Euro symbol is temporarily downloaded to the machine RAM at the first PS printing job, and whenever the PDL is switched from RPCS or PCL to PS.
  • Page 5 echnical ulletin PAGE: 3/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Font Table Euro symbol is printed correctly. This is a symbol font, so no countermeasure is applied. Both temporary and permanent solutions work to print out the Euro currency symbol correctly. AlbertusMT Helvetica Univers...
  • Page 6 echnical ulletin PAGE: 4/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Geneva Palatino-Italic GillSans Palatino-Roman GillSans-Bold StempelGaramond-Bold GillSans-BoldCondensed StempelGaramond-BoldItalic GillSans-BoldItalic StempelGaramond-Italic GillSans-Condensed StempelGaramond-Roman GillSans-ExtraBold Symbol GillSans-Italic Tekton GillSans-Light Times-Bold GillSans-LightItalic Times-BoldItalic Goudy Times-Italic Goudy-Bold Times-Roman Goudy-BoldItalic TimesNewRomanPS-BoldItalicMT Goudy-ExtraBold TimesNewRomanPS-BoldMT Goudy-Italic TimesNewRomanPS-ItalicMT TimesNewRomanPSMT...
  • Page 7 echnical ulletin PAGE: 5/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Workaround Announced on the FAQ Page Question: Euro Fonts printing problem Answer: If Euro Fonts can't be printed by the PS driver, the following solutions may be effective. Solution MacOS 9.x / 8.x Use the AdobePS 8.8 printer driver.
  • Page 8 echnical ulletin PAGE: 6/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Windows95 after update Windows 98 / ME / NT4.0 / XP Check "Add Euro Currency Symbol to PostScript Fonts" . Windows 98 / ME (Note: The AdobePS driver version 4.3.1 or later has "Add Euro Currency Symbol to PostScript Fonts"...
  • Page 9 echnical ulletin PAGE: 7/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Windows NT4.0 Windows...
  • Page 10 echnical ulletin PAGE: 8/8 Model: Date: No.: General RTB 8-Nov-02 RGene011 Windows 2000 Update the printer driver to v5.5.2 or later. You can get it from the printer driver v1.0.6 on the Adobe web site that includes the W2000 driver v 5.5.2.
  • Page 11 echnical ulletin PAGE: 1/2 Model: Date: No.: Model U-P1 20-Dec-02 RG071001 Subject: Image Skew Prepared by: H.K. From: Technical Services sec. Service Planning Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other ( SYMPTOM Image skew when feeding from mainframe Tray 1.
  • Page 12 echnical ulletin PAGE: 2/2 Model: Date: No.: Model U-P1 20-Dec-02 RG071001 Field Action 3 The following sheets of Mylar have been added to the side fence from the September production machines. For the field machines, please refer to the procedure below. Part number Quantity Description...
  • Page 13 echnical ulletin PAGE: 1/1 Model: Date: No.: General RTB 27-Dec-02 RGene012 Subject: Prepared by: GW Products - Hardware Ethernet Problem T. Itoh From: Technical Services Sec. Service Planning Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 14 echnical ulletin RG071002 PAGE: 1/1 Model: Date: No.: Model U-P1 20-Jan-03 RG071002 Subject: Prepared by: Service Manual Y.Urushihara From: Technical Services Sec. Service Planning Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other ( Please apply the following correction to your Model U-P1 Service Manuals.
  • Page 15 echnical ulletin PAGE: 1/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 Subject: Prepared by: Firmware History - Main Unit Controller H.K. From: Technical Services Sec. Service Planning Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 16 echnical ulletin PAGE: 2/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 Main Unit Controller Symptom Corrected Version V2.24 SP1-105 -01 (Fusing Temperature): Default for idling start changed from 145 to 140 (see SP mode table below). SP2-801 -02 (Additional Value of the charge corona cleaning interval) has been newly added.
  • Page 17 echnical ulletin PAGE: 3/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 Symptom Corrected Version Default settings for SP2 -944-4 and –5 have been changed to reduce the OPC lubrication mode cycle : SP2-944 -4 : Sheets-1 : [10 to 80/ 30 (old : 20) / 1sheet/step] SP2-944 -5 : Sheets-2 : [10 to 80/ 60 (old : 40) / 1sheet/step] Euro symbol not printed with PS driver (for details, see General RTB No.
  • Page 18 echnical ulletin PAGE: 4/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 New defaults (Old default) PFMtrDelayTime Tray:Plain Adjusts the timing of the paper feed motor when the registration roller feeds the paper by the fusing motor. By-pass:Plain This adjusts the paper b uckle at the registration by the start timing of the paper feed motor.
  • Page 19 echnical ulletin PAGE: 5/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 H:OHP/1C Sets the heating roller temperature for OHP sheets in single-color mode. [120 ~ 190 / 165 (170) / 1°C/step] H: OHP/FC Sets the heating roller temperature for OHP sheets in full-color mode .
  • Page 20 echnical ulletin PAGE: 6/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 New defaults (Old default) 310* PaperTrans_LL1 (Paper Transfer LL1) The display indicates: Paper Weight/Side 1 or 2/Paper Width (mm) Nrml/1st/-297 Sets the paper transfer current when absolute humidity AH (g/m ) is in the following range: 0 <...
  • Page 21 echnical ulletin PAGE: 7/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 [0 ~ 70.0 / 29.0 (40.0) / 0.2 µA/step] Nrml/1st/210-256 [0 ~ 70.0 / 28.0 (43.0) / 0.2 µA/step] Nrml/1st/129-209 [0 ~ 70.0 / 27.0 (46.0) / 0.2 µA/step] Nrml/1st/-128 [0 ~ 70.0 / 28.0 (37.0) / 0.2 µA/step] Mid/1st/-297...
  • Page 22 echnical ulletin PAGE: 8/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 [0 ~ 70.0 / 14.0 (24.0) / 0.2 µA/step] Thk/1st/-128 [0 ~ 70.0 / 27.0 (42.0) / 0.2 µA/step] Nrml/2nd/-297 [0 ~ 70.0 / 28.0 (45.0) / 0.2 µA/step] Nrml/2nd/257-296 [0 ~ 70.0 / 30.0 (48.0) / 0.2 µA/step] Nrml/2nd/210-256...
  • Page 23 echnical ulletin PAGE: 9/9 Model: Date: No.: Model U-P1 3-Feb -03 RG071003 [0 ~ 70.0 / 15.0 (32.0) / 0.2 µA/step] Thk/2nd/257-296 [0 ~ 70.0 / 17.0 (36.0) / 0.2 µA/step] Thk/2nd/210-256 [0 ~ 70.0 / 23.0 (41.0) / 0.2 µA/step] Thk/2nd/129-209 [0 ~ 70.0 / 29.0 (45.0) / 0.2 µA/step] Thk/2nd/-128...
  • Page 24 echnical ulletin PAGE: 1/2 Model: Date: No.: Model U-P1 3-Feb-03 RG071004 Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: Technical Services Sec. Service Planning Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (Firmware History)
  • Page 25 echnical ulletin PAGE: 2/2 Model: Date: No.: Model U-P1 3-Feb-03 RG071004 BICU Symptom Corrected Version Software changed so that oil end detection is not performed while the fusing V1.38 unit is in operation, in order to prevent oil end misdetections caused by winter humidity (humidification).
  • Page 26 echnical ulletin PAGE: 1/1 Model: Date: No.: Model U-P1 3-Feb-03 RG071005 Subject: Prepared by: Firmware History - NIB H.K. From: Technical Services Sec. Service Planning Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (Firmware History) This is to inform you of the NIB firmware history.
  • Page 27 echnical ulletin PAGE: 1/4 Reissued: 19-Mar-03 Model: Date: No.: General RTB 4-Feb-03 RGene013b RTB Reissue The items in bold italics have been corrected or updated. Subject: Prepared by: Service remarks at installation T. Itoh From: Technical Service Sec. Service Planning Dept. Classification: Troubleshooting Part information...
  • Page 28 echnical ulletin PAGE: 2/4 Reissued: 19-Mar-03 Model: Date: No.: General RTB 4-Feb-03 RGene013b 2. Firmware Modification Due to the counter modification, SP5-849 has also been changed as follows for products that have this SP mode (listed below). SP mode name: Specification: •...
  • Page 29 echnical ulletin PAGE: 3/4 Reissued: 19-Mar-03 Model: Date: No.: General RTB 4-Feb-03 RGene013b (2) Current products Product Name Product Target cut-in Cut-in production month Code production month Digital B&W Copiers Bellini C1 A294 Martini C1 B064/65 2003.03 April ’03 production (see Note) Model M-C2b B098 2003.03...
  • Page 30 echnical ulletin PAGE: 4/4 Reissued: 19-Mar-03 Model: Date: No.: General RTB 4-Feb-03 RGene013b 4. Important Notes for Machine Installation – All Products Please be sure to perform the following at machine installation: 1. If the product is from before the counter modification, i.e. the counter is at a negative value, be sure to set the counter value to 0 first, then make the installation test samples.
  • Page 31 echnical ulletin PAGE: 1/2 Reissued: 2-May-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004a RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: Technical Services Sec. Service Planning Dept. Classification: Troubleshooting Part information Action required...
  • Page 32 echnical ulletin PAGE: 2/2 Reissued: 2-May-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004a BICU Symptom Corrected Version Minor bugs corrected. V1.40 Changes made in preparation for the addition of SP3-921-01/02 (from the next version). Note: These SP modes are not yet operational. Software changed so that oil end detection is not performed while the fusing V1.38 unit is in operation, in order to prevent oil end misdetections caused by winter...
  • Page 33 echnical ulletin PAGE: 1/3 Reissued: 7-May-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003a RTB Reissue The items in bold italics have been added or changed. Subject: Prepared by: Firmware History - Main Unit Controller H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information...
  • Page 34 echnical ulletin PAGE: 2/3 Reissued: 7-May-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003a Note for updating main unit controller firmware: Whenever updating main unit controller firmware from v2.22.1 or earlier to v2.24 or later, please be sure to update the BICU firmware at the same time to v1.38 or later. The BICU firmware history is in RTB No.
  • Page 35 echnical ulletin PAGE: 3/3 Reissued: 7-May-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003a Main Unit Controller Symptom Corrected Version Changes made in preparation for the addition of SP3-921-01/02 (from the next V2.26 version). Note: These SP modes are not yet operational. New SP mode added: SP2-803-01 (Charge Cleaning Off time).
  • Page 36 echnical ulletin RB051007 PAGE: 1/1 Model: Date: No.: Model U-P1 21-May-03 RG071006 Subject: Prepared by: Blank area at the one side of the development unit Y.Urushihara From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision...
  • Page 37 echnical ulletin PAGE: 1/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b RTB Reissue The items in bold italics have been added or changed. Subject: Prepared by: Firmware History - Main Unit Controller H.K. From: 1st Tech. Support Sec. Service Support Dept. Troubleshooting Part information Action required...
  • Page 38 echnical ulletin PAGE: 2/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b Note for updating main unit controller firmware: Whenever updating main unit controller firmware from v2.22.1 or earlier to v2.24 or later, please be sure to update the BICU firmware at the same time to v1.38 or later. The BICU firmware history is described in RTB No.
  • Page 39 echnical ulletin PAGE: 3/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b Main Unit Controller Symptom Corrected Version V2.27 To ensure proper printing quality, the default values for the following SP modes have been reviewed and some SP modes newly added.
  • Page 40 echnical ulletin PAGE: 4/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b Symptom Corrected Version SP1-105 -01 (Fusing Temperature): Default for idling start changed from 145 to 140 V2.24 (see SP mode table below). SP2-801 -02 (Additional Value of the charge corona cleaning interval) has been newly added.
  • Page 41 echnical ulletin PAGE: 5/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b Symptom Corrected Version Default settings for SP2 -944-4 and –5 have been changed to reduce the OPC lubrication mode cycle : SP2-944 -4 : Sheets-1 : [10 to 80/ 30 (old : 20) / 1sheet/step] SP2-944 -5 : Sheets-2 : [10 to 80/ 60 (old : 40) / 1sheet/step] Euro symbol not printed with PS driver (for details, see General RTB No.
  • Page 42 echnical ulletin PAGE: 6/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b New defaults (Old default) PFMtrDelayTime Tray:Plain Adjust the timing of the paper feed motor when the registration roller feeds the paper by the fusing motor. By-pass:Plain This adjusts the paper backle at the registration by the start timing of the paper feed motor.
  • Page 43 echnical ulletin PAGE: 7/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b H:OHP/1C Sets the heating roller temperature for OHP sheets in single-color mode. [120 ~ 190 / 165 (170) / 1°C/step] H: OHP/FC Sets the heating roller temperature for the OHP sheets in full-color mode.
  • Page 44 echnical ulletin PAGE: 8/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b New defaults (Old default) 310* PaperTrans_LL1 (Paper Transfer LL1) The display indicates: Paper Weight/Side 1 or 2/Paper Width (mm) Nrml/1st/-297 Sets the paper transfer current when absolute humidity AH (g/m ) is in the following range: 0 <...
  • Page 45 echnical ulletin PAGE: 9/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b [0 ~ 70.0 / 29.0 (40.0) / 0.2 µA/step] Nrml/1st/210-256 [0 ~ 70.0 / 28.0 (43.0) / 0.2 µA/step] Nrml/1st/129-209 [0 ~ 70.0 / 27.0 (46.0) / 0.2 µA/step] Nrml/1st/-128 [0 ~ 70.0 / 28.0 (37.0) / 0.2 µA/step] Mid/1st/-297...
  • Page 46 echnical ulletin PAGE: 10/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b [0 ~ 70.0 / 14.0 (24.0) / 0.2 µA/step] Thk/1st/-128 [0 ~ 70.0 / 27.0 (42.0) / 0.2 µA/step] Nrml/2nd/-297 [0 ~ 70.0 / 28.0 (45.0) / 0.2 µA/step] Nrml/2nd/257-296 [0 ~ 70.0 / 30.0 (48.0) / 0.2 µA/step] Nrml/2nd/210-256...
  • Page 47 echnical ulletin PAGE: 11/11 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071003b [0 ~ 70.0 / 15.0 (32.0) / 0.2 µA/step] Thk/2nd/257-296 [0 ~ 70.0 / 17.0 (36.0) / 0.2 µA/step] Thk/2nd/210-256 [0 ~ 70.0 / 23.0 (41.0) / 0.2 µA/step] Thk/2nd/129-209 [0 ~ 70.0 / 29.0 (45.0) / 0.2 µA/step] Thk/2nd/-128...
  • Page 48 echnical ulletin PAGE: 1/2 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071004b RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: Technical Services Sec. Service Planning Dept. Troubleshooting Part information Action required...
  • Page 49 echnical ulletin PAGE: 2/2 Reissued: 17-Jun-03 Model: Date: No.: Model U-P1 3-Feb -03 RG071004b BICU Symptom Corrected Version V1.42 Modified in accordance with main unit controller v2.27 modificaiton. For details, please see RTB #RG071003b. NOTE : Along with this BICU version, be sure to update the main unit controller firmware to v2.27 or later.
  • Page 50 echnical ulletin PAGE: 1/3 Model: Date: No.: Model U-P1 17-Jun-03 RG071007 Subject: Prepared by: Black Faint Image S. Tomoe From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (...
  • Page 51 echnical ulletin PAGE: 2/3 Model: Date: No.: Model U-P1 17-Jun-03 RG071007 2. CAUSE The lubricant applied to the OPC belt gets inside the black development unit via the development roller, causing the friction level on the roller surface to decrease. This makes it more difficult for the toner to be transferred onto the roller surface, causing the image to gradually get lighter.
  • Page 52 echnical ulletin PAGE: 3/3 Model: Date: No.: Model U-P1 17-Jun-03 RG071007 4. Cut-in Serial Numbers Code Serial Numbers G071-17 P7536400358~ G071-22 P7536300073, P75364000236~0239, 0241~ G071-24 L104384001~ G071-27 P7536300185, 0256~0258, 0260~0272, 0276, 0279, 0285, 0290, 0292~0298, 0300~0305, 0307~0311, 0313, 0316, 0319, 0320, 0322, 0323, 0325, 0326, 0328, 0330~0335, 0339~0343, 0345, 0346, 0348~0352, 0355~0359, 0361, P7536400007, 0012, 0013, 0017, 0034, 0036, 0041, 0044, 0046, 0056,...
  • Page 53 echnical ulletin PAGE: 1/3 Reissued: 7-Aug-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003c RTB Reissue The items in bold italics have been added or changed. Subject: Prepared by: Firmware History - Main Unit Controller H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information...
  • Page 54 echnical ulletin PAGE: 2/3 Reissued: 7-Aug-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003c Note for updating main unit controller firmware: Whenever updating main unit controller firmware from v2.22.1 or earlier to v2.24 or later, please be sure to update the BICU firmware at the same time to v1.38 or later. The BICU firmware history is described in RTB No.
  • Page 55 echnical ulletin PAGE: 3/3 Reissued: 7-Aug-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003c Main Unit Controller Symptom Corrected Version Merged PCL job cannot print (TechMail#TS030100). V2.28.2 1. The following SP modes have been added. V2.28 For details, please refer to BICU firmware release note RB051004c: BICU v1.44A.
  • Page 56 echnical ulletin PAGE: 1/2 Reissued: 7-Aug-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004c RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information...
  • Page 57 echnical ulletin PAGE: 2/2 Reissued: 7-Aug-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004c Symptom Corrected Version Eliminated unnecessary occurrences of SC420 (Fusing bias discharge V1.45 error): SC420 will not be triggered when a leak occurs as a result of a small hole on the fusing belt surface, since from field experience it has been confirmed that belt lifetime is actually longer when the SC is not triggered in these conditions.
  • Page 58 echnical ulletin PAGE: 1/2 Model: Date: No.: Model U-P1 25-Sep-03 RG071008 Subject: Prepared by: Dirty spots on the prints H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (...
  • Page 59 echnical ulletin PAGE: 2/2 Model: Date: No.: Model U-P1 25-Sep-03 RG071008 SOLUTION In the production line The instruction of the correct gear rotation has been added and an inspection process has been added to the cleaning procedure from February 12 production machines. In the field Replace the image transfer belt cleaning unit (G0706300: Belt Cleaning Assembly).
  • Page 60 echnical ulletin PAGE: 1/2 Model: Date: No.: Model U-P1 25-Sep-03 RG071009 Subject: Prepared by: Gears on the Development Shaft H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (...
  • Page 61 echnical ulletin PAGE: 2/2 Model: Date: No.: Model U-P1 25-Sep-03 RG071009 7 mm 384.5±0.2 mm Specification: Development Drive Shaft G0704607 SOLUTION In the field Replace the development shaft with the spare part (G0704607: Development Shaft - FC). Note: We estimate the occurrence ratio is very low according to the investigation results in the factory and by the manufacturer.
  • Page 62 echnical ulletin PAGE: 1/12 Model: Date: No.: Model U-P1 28-Oct-03 RG071010 Subject: Prepared by: Skew Image Adjustment Procedure H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (...

  • Page 63: Table Of Contents

    Correcting Skewed, Parallelogram, and Trapezoid Images Model U-P1 Contents 1. VISUAL DIFFERENCES BETWEEN SKEWED, TRAPEZOID AND PARALLELOGRAM IMAGES............1 1.1 SKEWED IMAGES..................1 1.2 TRAPEZOID IMAGES................... 1 1.3 PARALLELOGRAM IMAGES................ 2 2. CHECKING THE IMAGE WITH THE TRIMMING PATTERN..3 3.

  • Page 64: Visual Differences Between Skewed, Trapezoid And Parallelogram Images

    1. VISUAL DIFFERENCES BETWEEN SKEWED, TRAPEZOID AND PARALLELOGRAM IMAGES 1.1 SKEWED IMAGES • The image’s leading and trailing edges are parallel to one another. • The image’s left and right edges are also parallel. • However, all four sides are slanted with respect to the paper’s edge. Feed direction Parallel Parallel...

  • Page 65: Parallelogram Images

    1.3 PARALLELOGRAM IMAGES • Like skewed images, the leading/trailing edges and left/right edges are parallel to each other, but here, the leading and trailing edges are both slanted with respect to the paper’s edge. Feed direction Parallel Parallel Parallelogram may also appear in the opposite orientation.

  • Page 66: Checking The Image With The Trimming Pattern

    2. CHECKING THE IMAGE WITH THE TRIMMING PATTERN Print out 5, A3 Trimming Patterns from SP5-955 (value: 11) Skewed Parallelogram See Adjusting Skewed Images, See adjusting Parallelogram Image Adjustment, page 4 below. page 9 below. Trapezoid Combination skewed and trapezoid image See Adjusting Trapezoid Images, page 4 below.

  • Page 67: Correcting The Images

    3. CORRECTING THE IMAGES 3.1 FLOWCHART Please use the following flowchart to correct skewed, parallelogram, and trapezoid images as described on page 3. Image is: Skewed, Trapezoid, Parallelogram, or combination Skewed/Trapezoid. Print out SP5-955-11 trimming pattern Are the lines running along Action 1 the main-scan and sub-scan directions at 90 degrees to...

  • Page 68: Action

    ACTION Action 1 (skewed image of trimming pattern) Perform the Solution described in RTB No. RG071001. Action 2 (trapezoid image or skewed + trapezoid image of trimming pattern) Attach the following two spacers to the fusing rail and fusing unit as shown below. Applied from: May 2003 production.
  • Page 69 Attaching the Spacer to the Fusing Rail 1. Remove the fusing unit. 2. Clean the attachment area for the rail spacer with alcohol. 3. Attach the rail spacer (B0514370) to the rear of the non-sliding fusing rail [A] so that the tapered side [B] is facing the front.
  • Page 70 Attaching the Spacer to the Fusing Unit 1. Remove the fusing unit. Then, remove the oil supply unit. 2. Remove the gear bracket [A] (2 screws). 3. Remove the upper cover [B] (2 screws, 1 shoulder screw). 4. Remove the drive gear [C]. 5.
  • Page 71 Important: In the next step, be sure and lift up the shaft slowly and gently. If it is lifted up too quickly or with too much force, the fusing lamp will be damaged. 6. Lift up the shaft [A] very gently, just enough so that the lower pressure spacer can be inserted.
  • Page 72 Important: Confirm the following after attachment Make sure that: ! Positioning projection [A] is visible ! The edge of the lower pressure spacer (B0514371) is aligned with the lower cover edge [B], i.e. not positioned inside or projecting out from the cover edge. Action 3 (parallelogram image of trimming pattern) Adjust the position of the laser optics-housing unit as described in the Service Manual, pg.
  • Page 73 NOTE: When the image skews as shown on the right, move the unit 1 mm in the direction of the black arrow as shown in the diagram above and to the right. Paper feed (A3 SEF) B051R901.WMF...
  • Page 74 echnical ulletin PAGE: 1/5 Model: Date: No.: Model U-P1 27-Nov-03 RG071011 Subject: Prepared by: No Indication on the LCD Display H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 75 echnical ulletin PAGE: 2/5 Model: Date: No.: Model U-P1 27-Nov-03 RG071011 In the field: If the above symptom occurs, reattach the controller box as shown below to ensure a proper connection between the controller box and BCU board. 1. Turn off the main switch and remove the duct cover, ozone filter, printer controller, and rear cover.
  • Page 76 echnical ulletin PAGE: 3/5 Model: Date: No.: Model U-P1 27-Nov-03 RG071011 Screws Screws 3. While holding the controller box in its lower position, secure the 13 screws. Point: The controller box is attached in this lower position to prevent poor connection between the BCU and controller.
  • Page 77 echnical ulletin PAGE: 4/5 Model: Date: No.: Model U-P1 27-Nov-03 RG071011 4. Slide the printer controller in slowly until the connecters connect with those on the BCU board. 5. Push in the top portion of the controller as shown.
  • Page 78 echnical ulletin PAGE: 5/5 Model: Date: No.: Model U-P1 27-Nov-03 RG071011 6. While holding the top portion in place, push in the bottom portion of the controller flat against the surface shown. 7. Reattach the rear cover (2 screws). 8. Secure the 2 screws for the printer controller. 9.
  • Page 79 echnical ulletin PAGE: 1/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d RTB Reissue The items in bold italics have been added or changed. Subject: Prepared by: Firmware History - Main Unit Controller H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information...
  • Page 80 echnical ulletin PAGE: 2/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d 11 units were shipped to RDG fields as the test marketing machines (PMO). Note for updating main unit controller firmware: Whenever updating main unit controller firmware from v2.22.1 or earlier to v2.24 or later, please be sure to update the BICU firmware at the same time to v1.38 or later.
  • Page 81 echnical ulletin PAGE: 3/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Main Unit Controller Symptom Corrected Version SC687 occurs with multi-prints onto B4 (B/W). V2.29 Modified in accordance with BCU v1.47a modification. For details, please see RTB #RG071004d. NOTE: Along with this main unit controller version, be sure to update the BICU firmware to v1.47a or later.
  • Page 82 echnical ulletin PAGE: 4/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Symptom Corrected Version V2.27 To ensure proper printing quality, the default values for the following SP modes have been reviewed and some SP modes newly added. -SP3-920-001 (Lubrication Cleaning Time) ( ): old default [0 ~ 100 / 50 (100) / 1% /step] -SP2-941-001(OPC Lubricant Time –...
  • Page 83 echnical ulletin PAGE: 5/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Symptom Corrected Version SP2-801-02 (Additional Value of the charge corona cleaning interval) has been newly added. The cleaning interval for the additional charge corona unit has been adjusted as shown.
  • Page 84 echnical ulletin PAGE: 6/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Symptom Corrected Version Default settings for SP2-944-4 and –5 have been changed to reduce the OPC lubrication mode cycle : SP2-944-4 : Sheets-1 : [10 to 80/ 30 (old : 20) / 1sheet/step] SP2-944-5 : Sheets-2 : [10 to 80/ 60 (old : 40) / 1sheet/step] Euro symbol not printed with PS driver (for details, see General RTB No.
  • Page 85 echnical ulletin PAGE: 7/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d New defaults (Old default) PFMtrDelayTime Adjust the timing of the paper feed motor when the Tray:Plain registration roller feeds the paper by the fusing motor. This adjusts the paper backle at the registration by the By-pass:Plain start timing of the paper feed motor.
  • Page 86 echnical ulletin PAGE: 8/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d H:OHP/1C Sets the heating roller temperature for OHP sheets in single-color mode. [120 ~ 190 / 165 (170) / 1°C/step] Sets the heating roller temperature for the OHP sheets H: OHP/FC in full-color mode.
  • Page 87 echnical ulletin PAGE: 9/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d New defaults (Old default) 310* PaperTrans_LL1 (Paper Transfer LL1) The display indicates: Paper Weight/Side 1 or 2/Paper Width (mm) Nrml/1st/-297 Sets the paper transfer current when absolute humidity AH (g/m ) is in the following range: 0 <...
  • Page 88 echnical ulletin PAGE: 10/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Nrml/1st/210-256 [0 ~ 70.0 / 29.0 (40.0) / 0.2 µA/step] [0 ~ 70.0 / 28.0 (43.0) / 0.2 µA/step] Nrml/1st/129-209 [0 ~ 70.0 / 27.0 (46.0) / 0.2 µA/step] Nrml/1st/-128 Mid/1st/-297 [0 ~ 70.0 / 28.0 (37.0) / 0.2 µA/step]...
  • Page 89 echnical ulletin PAGE: 11/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Thk/1st/-128 [0 ~ 70.0 / 14.0 (24.0) / 0.2 µA/step] [0 ~ 70.0 / 27.0 (42.0) / 0.2 µA/step] Nrml/2nd/-297 [0 ~ 70.0 / 28.0 (45.0) / 0.2 µA/step] Nrml/2nd/257-296 Nrml/2nd/210-256 [0 ~ 70.0 / 30.0 (48.0) / 0.2 µA/step]...
  • Page 90 echnical ulletin PAGE: 12/12 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071003d Thk/2nd/257-296 [0 ~ 70.0 / 15.0 (32.0) / 0.2 µA/step] [0 ~ 70.0 / 17.0 (36.0) / 0.2 µA/step] Thk/2nd/210-256 [0 ~ 70.0 / 23.0 (41.0) / 0.2 µA/step] Thk/2nd/129-209 Thk/2nd/-128 [0 ~ 70.0 / 29.0 (45.0) / 0.2 µA/step]...
  • Page 91 echnical ulletin PAGE: 1/6 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004d RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information...
  • Page 92 echnical ulletin PAGE: 2/6 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004d BICU Symptom Corrected Version 1. SP modes newly added: V1.47A SP2-922-001 (Development Clutch ON after Job End) Determines whether or not a small amount of toner is applied to the OPC belt surface in order to ensure proper belt cleaning.
  • Page 93 echnical ulletin PAGE: 3/6 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004d Symptom Corrected Version 2. Existing SP mode subdivided: V1.47A SP3-920 has been subdivided as follows to enable separate lubrication time control for 1C vs. 2C/3C/4C. SP3-920-001 (Lubrication Cleaning Time: - 1C) [0 ~ 100 / 50 / 1% /step] SP3-920-002 (Lubrication Cleaning Time: - 2C/3C/4C) [0 ~ 100 / 100/ 1% /step]...
  • Page 94 echnical ulletin PAGE: 4/6 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004d Eliminated unnecessary occurrences of SC420 (Fusing bias discharge error): V1.45 SC420 will not be triggered when a leak occurs as a result of a small hole on the fusing belt surface, since from field experience it has been confirmed that belt lifetime is actually longer when the SC is not triggered in these conditions.
  • Page 95 echnical ulletin PAGE: 5/6 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004d SP mode newly added: SP2-801-02 (Additional Value of the charge corona cleaning interval). Refer to RTB No. RG071003 for the main unit controller firmware history. SC687 misdetections sometimes occur when paper is loaded into the bypass tray after the bypass tray reaches paper end.
  • Page 96 echnical ulletin PAGE: 6/6 Reissued: 3-Dec-03 Model: Date: No.: Model U-P1 3-Feb-03 RG071004d C(1:P1b) [–3 ~ 3 / 0 / 2 line/step] [–3 ~ 3 / 0 / 2 line/step] Y(1:P1b) K(1:P1b) [–3 ~ 3 / 0 / 2 line/step] M(2:P1a) For use in Japan only.
  • Page 97 echnical ulletin PAGE: 1/2 Model: Date: No.: Model U-P1 9-Dec-03 RG071012 Subject: Prepared by: Cap for the O/B Waste Toner H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information Action required Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 98 echnical ulletin PAGE: 2/2 Model: Date: No.: Model U-P1 9-Dec-03 RG071012 (cap removed)
  • Page 99 echnical ulletin PAGE: 1/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e RTB Reissue The items in bold italics have been added or changed. Subject: Prepared by: Firmware History - Main Unit Controller H.K. From: 1st Tech. Support Sec. Service Support Dept. Troubleshooting Part information Action required...
  • Page 100 echnical ulletin PAGE: 2/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e G071-27: P75268xxxxx 11 units were shipped to RDG fields as the test marketing machines (PMO). Note for updating main unit controller firmware: Whenever updating main unit controller firmware from v2.22.1 or earlier to v2.24 or later, please be sure to update the BICU firmware at the same time to v1.38 or later.
  • Page 101 echnical ulletin PAGE: 3/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e Main Unit Controller Symptom Corrected Version 1. “Paper End” is sometimes not displayed, or the machine sometimes V2.30 freezes up with the display “Processing…” while in the Paper End condition if the operator has selected Custom Size and Auto Paper Tray Selection.
  • Page 102 echnical ulletin PAGE: 4/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e Symptom Corrected Version V2.27 To ensure proper printing quality, the default values for the following SP modes have been reviewed and some SP modes newly added. -SP3-920-001 (Lubrication Cleaning Time) ( ): old default [0 ~ 100 / 50 (100) / 1% /step] -SP2-941-001(OPC Lubricant Time –...
  • Page 103 echnical ulletin PAGE: 5/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e Symptom Corrected Version SP2-801-02 (Additional Value of the charge corona cleaning interval) has been newly added. The cleaning interval for the additional charge corona unit has been adjusted as shown.
  • Page 104 echnical ulletin PAGE: 6/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e Symptom Corrected Version Default settings for SP2-944-4 and –5 have been changed to reduce the OPC lubrication mode cycle : SP2-944-4 : Sheets-1 : [10 to 80/ 30 (old : 20) / 1sheet/step] SP2-944-5 : Sheets-2 : [10 to 80/ 60 (old : 40) / 1sheet/step] Euro symbol not printed with PS driver (for details, see General RTB No.
  • Page 105 echnical ulletin PAGE: 7/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e New defaults (Old default) PFMtrDelayTime Tray:Plain Adjust the timing of the paper feed motor when the registration roller feeds the paper by the fusing motor. By-pass:Plain This adjusts the paper backle at the registration by the start timing of the paper feed motor.
  • Page 106 echnical ulletin PAGE: 8/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e H:OHP/1C Sets the heating roller temperature for OHP sheets in single-color mode. [120 ~ 190 / 165 (170) / 1°C/step] H: OHP/FC Sets the heating roller temperature for the OHP sheets in full-color mode.
  • Page 107 echnical ulletin PAGE: 9/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e New defaults (Old default) 310* PaperTrans_LL1 (Paper Transfer LL1) The display indicates: Paper Weight/Side 1 or 2/Paper Width (mm) Nrml/1st/-297 Sets the paper transfer current when absolute humidity AH (g/m ) is in the following range: 0 <...
  • Page 108 echnical ulletin PAGE: 10/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e [0 ~ 70.0 / 29.0 (40.0) / 0.2 µA/step] Nrml/1st/210-256 [0 ~ 70.0 / 28.0 (43.0) / 0.2 µA/step] Nrml/1st/129-209 [0 ~ 70.0 / 27.0 (46.0) / 0.2 µA/step] Nrml/1st/-128 [0 ~ 70.0 / 28.0 (37.0) / 0.2 µA/step] Mid/1st/-297...
  • Page 109 echnical ulletin PAGE: 11/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e [0 ~ 70.0 / 14.0 (24.0) / 0.2 µA/step] Thk/1st/-128 [0 ~ 70.0 / 27.0 (42.0) / 0.2 µA/step] Nrml/2nd/-297 [0 ~ 70.0 / 28.0 (45.0) / 0.2 µA/step] Nrml/2nd/257-296 [0 ~ 70.0 / 30.0 (48.0) / 0.2 µA/step] Nrml/2nd/210-256...
  • Page 110 echnical ulletin PAGE: 12/12 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071003e [0 ~ 70.0 / 15.0 (32.0) / 0.2 µA/step] Thk/2nd/257-296 [0 ~ 70.0 / 17.0 (36.0) / 0.2 µA/step] Thk/2nd/210-256 [0 ~ 70.0 / 23.0 (41.0) / 0.2 µA/step] Thk/2nd/129-209 [0 ~ 70.0 / 29.0 (45.0) / 0.2 µA/step] Thk/2nd/-128...
  • Page 111 echnical ulletin PAGE: 1/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: 1st Tech. Support Sec. Service Support Dept. Troubleshooting Part information Action required...
  • Page 112 echnical ulletin PAGE: 2/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e BICU Symptom Corrected Version 1. Carryover SP modes from Copier firmware: Currently UNUSABLE. 1.48D The following are the SP modes carried over from the Copier firmware which will therefore appear on the display, as the printer firmware is created using the Copier firmware base.
  • Page 113 echnical ulletin PAGE: 3/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e Symptom Corrected Version V1.47A 1. SP modes newly added: SP2-922-001 (Development Clutch ON after Job End) Determines whether or not a small amount of toner is applied to the OPC belt surface in order to ensure proper belt cleaning.
  • Page 114 echnical ulletin PAGE: 4/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e Symptom Corrected Version V1.47A 2. Existing SP mode subdivided: SP3-920 has been subdivided as follows to enable separate lubrication time control for 1C vs. 2C/3C/4C. SP3-920-001 (Lubrication Cleaning Time: - 1C) [0 ~ 100 / 50 / 1% /step] SP3-920-002 (Lubrication Cleaning Time: - 2C/3C/4C) [0 ~ 100 / 100/ 1% /step]...
  • Page 115 echnical ulletin PAGE: 5/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e Eliminated unnecessary occurrences of SC420 (Fusing bias discharge error): V1.45 SC420 will not be triggered when a leak occurs as a result of a small hole on the fusing belt surface, since from field experience it has been confirmed that belt lifetime is actually longer when the SC is not triggered in these conditions.
  • Page 116 echnical ulletin PAGE: 6/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e SP mode newly added: SP2-801-02 (Additional Value of the charge corona cleaning interval). Refer to RTB No. RG071003 for the main unit controller firmware history. SC687 misdetections sometimes occur when paper is loaded into the bypass tray after the bypass tray reaches paper end.
  • Page 117 echnical ulletin PAGE: 7/7 Reissued: 29-Jan-04 Model: Date: No.: Model U-P1 3-Feb-03 RG071004e C(1:P1b) [–3 ~ 3 / 0 / 2 line/step] [–3 ~ 3 / 0 / 2 line/step] Y(1:P1b) K(1:P1b) [–3 ~ 3 / 1 (0) / 2 line/step] M(2:P1a) For use in Japan only.
  • Page 118 echnical ulletin PAGE: 1/1 Model: Date: No.: Model U-P1 19-Feb-04 RG071013 Subject: Prepared by: Jam At Registration Sensor Section H.K. From: 1st Tech. Support Sec. Service Support Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Other (...
  • Page 119 echnical ulletin PAGE: 1/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 Subject: Prepared by: New PCU / Development Unit Installation Procedure H.K. From: 1st Tech. Support Sec. Service Support Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information...
  • Page 120 echnical ulletin PAGE: 2/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 The following modification has been applied to the production machines. • A cleaning blade has been added to the ITB cleaning section. • The material of the OPC-belt cleaning blade has been changed (This has already been applied to the production machine since 2003 October production.).
  • Page 121 echnical ulletin PAGE: 3/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 Procedures Adding the Cam Stopper to the ITB Cleaning Cam Note: If you have to install this new PCU in a mass-production unit from August 2003 production, you do not have to install this cam stopper. Turn off the main switch.
  • Page 122 echnical ulletin PAGE: 4/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 Changing SP Mode Settings After Installing the New PCU or New Development unit or both. Open the front cover. Then turn on the main switch. Then access the SP mode. Note: It is necessary to input the settings to determine the SP settings even if the correct settings are indicated in the SP mode after the firmware is updated.
  • Page 123 echnical ulletin PAGE: 5/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 Note: 1. Change this setting from 1 to 20 at the time you install the new M development unit (G7823035) at the same time. 2. It is recommended to use the new PCU and development unit when either is replaced on machines produced in June 2004 or later.
  • Page 124 echnical ulletin PAGE: 6/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 select the printout with the most closely aligned grid pattern. Then set SP2-950-4 to the value that produced that print. A4/LT printing: Compare the grid pattern near the trailing edge of the third sheet of each setting (initial, +1, -1). Then select the printout with the most closely aligned grid pattern.
  • Page 125 echnical ulletin PAGE: 7/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 Distinguishing the old unit from the new one These seals have been put on the new PCUs and new development units to distinguish the old unit from the new one. New PCU The new PCU unit has a seal as shown on the front side of the PCU.
  • Page 126 echnical ulletin PAGE: 8/8 Model: Date: No.: Model U-P1 20-Aug-04 RG071014 The new development unit from 2004 June production has a “+” mark on the lot number decal as shown below. “+” Mark Estimated side effects with incorrect combination of firmware/SP settings and old/new PCU Firmware version May version or before...
  • Page 127 echnical ulletin PAGE: 1/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f RTB Reissue The items in bold italics have been added. Subject: Prepared by: Firmware History - BCU (Engine) H.K. From: 1st Tech. Support Sec. Service Support Dept. Classification: Troubleshooting Part information...
  • Page 128 echnical ulletin PAGE: 2/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f BICU Symptom Corrected Version White lines. 1.49 Note: The “Doctor roller reverse mode” was changed to decrease the amount of clogged toner in between the development roller and doctor roller.
  • Page 129 echnical ulletin PAGE: 3/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f Symptom Corrected Version 1.48D 1. Carryover SP modes from Copier firmware: Currently UNUSABLE. The following are the SP modes carried over from the Copier firmware which will therefore appear on the display, as the printer firmware is created using the Copier firmware base.
  • Page 130 echnical ulletin PAGE: 4/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f Symptom Corrected Version V1.47A 1. SP modes newly added: SP2-922-001 (Development Clutch ON after Job End) Determines whether or not a small amount of toner is applied to the OPC belt surface in order to ensure proper belt cleaning.
  • Page 131 echnical ulletin PAGE: 5/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f Symptom Corrected Version V1.47A 2. Existing SP mode subdivided: SP3-920 has been subdivided as follows to enable separate lubrication time control for 1C vs. 2C/3C/4C. SP3-920-001 (Lubrication Cleaning Time: - 1C) [0 ~ 100 / 50 / 1% /step] SP3-920-002 (Lubrication Cleaning Time: - 2C/3C/4C) [0 ~ 100 / 100/ 1% /step]...
  • Page 132 echnical ulletin PAGE: 6/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f Symptom Corrected Version Eliminated unnecessary occurrences of SC420 (Fusing bias discharge error): V1.45 SC420 will not be triggered when a leak occurs as a result of a small hole on the fusing belt surface, since from field experience it has been confirmed that belt lifetime is actually longer when the SC is not triggered in these conditions.
  • Page 133 echnical ulletin PAGE: 7/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f Symptom Corrected Version SP mode newly added: SP2-801-02 (Additional Value of the charge corona cleaning interval). Refer to RTB No. RG071003 for the main unit controller firmware history. SC687 misdetections sometimes occur when paper is loaded into the bypass tray after the bypass tray reaches paper end.
  • Page 134 echnical ulletin PAGE: 8/8 Reissued: 11-Jan-05 Model: Date: No.: Model U-P1 3-Feb-03 RG071004f M(1:P1b) [–3 ~ 3 / –1 / 2 line/step] [–3 ~ 3 / 0 / 2 line/step] C(1:P1b) Y(1:P1b) [–3 ~ 3 / 0 / 2 line/step] [–3 ~ 3 / 1 (0) / 2 line/step] K(1:P1b) M(2:P1a)
  • Page 135 echnical ulletin PAGE: 1/3 Model: Date: No.: Model U-P1 22-Nov-06 RG071015 Subject: Prepared by: Charge Corona Harness H.K. From: 1st Tech. Support Sec. Service Support Dept. Troubleshooting Part information Action required Classification: Mechanical Electrical Service manual revision Paper path Transmit/receive Retrofit information Product Safety Other (...
  • Page 136 echnical ulletin PAGE: 2/3 Model: Date: No.: Model U-P1 22-Nov-06 RG071015 Do not straighten the harness.
  • Page 137 echnical ulletin PAGE: 3/3 Model: Date: No.: Model U-P1 22-Nov-06 RG071015 Front view QL is disconnected l When you Replace the PCU (G780-18, which contains the charge corona unit): Do the following if the cleaner motor harness is white: 1. Make sure it is not straight. If it is straight, bend it as shown above. 2.