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Riso RP-255 Technical Manual

Rn series
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TECHNICAL MANUAL

Copyright : 2003 Riso Kagaku Corporation
All Rights Reserved. This Technical Manual was prepared and
written for the exclusive use of RISO International Group Certified
Dealers. Reproduction and/or transmittal of this material in any
form or by any means, including photocopying or recording of the
information is strictly prohibited without the consent of a member
of RISO International Group.
RISO KAGAKU CORPORATION (JAPAN)
RISO, INC. (U.S.A.)
RISO EUROPE LIMITED (U.K.)
RISO HONG KONG (HONG KONG)
RISO UK (U.K.)
RISO THAILAND LIMITED (THAILAND)
RISO KOREA LIMITED (KOREA)
RN
SERIES
VERSION 2.0
JULY 2003
RISO INTERNATIONAL GROUP
RISO DEUTSCHLAND GMBH (GERMANY)
RISO FRANCE (FRANCE)
RISO IBERICA (SPAIN)
RISO CANADA (CANADA)
ZHUHAI RISO TECHNOLOGY (CHINA)
RISO AFRICA (SOUTH AFRICA)
RISOGRAPH ITALIA (ITALY)

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Summary of Contents for Riso RP-255

  • Page 1: Technical Manual

    Copyright : 2003 Riso Kagaku Corporation All Rights Reserved. This Technical Manual was prepared and written for the exclusive use of RISO International Group Certified Dealers. Reproduction and/or transmittal of this material in any form or by any means, including photocopying or recording of the information is strictly prohibited without the consent of a member of RISO International Group.
  • Page 2 CONTENTS CHAPTER 1 ....MAINTENANCE CHAPTER 2 ....MACHINE SUMMARY CHAPTER 3 ....MAIN DRIVE SECTION CHAPTER 4 ....FIRST PAPER-FEED SECTION CHAPTER 5 ....SECOND PAPER FEED SECTION CHAPTER 6 ....PRESS SECTION CHAPTER 7 ....PAPER EJECTION SECTION CHAPTER 8 ....

  • Page 3: Table Of Contents

    CONTENTS CHAPTER 1: MAINTENANCE Work Precautions ..................... 1-2 Jigs ..........................1-4 Important Precautions ....................1-6 4-1. Unpacking (RN25 series) ..................1-10 4-2. Unpacking (RN20/21 series) ................1-12 Installation Procedure for the RN-B4 Inkless Print Cylinder (Drum) ....1-13 Exterior Cover Removal ..................1-15 Opening the PCBs (RN25 series) .................
  • Page 4 CONTENTS Disassembly .......................... 4-9 Removing the Paper Feed Tray Unit ................ 4-9 Removing the Paper Width Potentiometer, Paper Detection Sensor, and Paper Size Detection Sensor ................4-10 Removing the Pickup and Scraper Rollers ............4-12 4-1. Removing the Feed Tray Descent Button and Upper Limit Sensor (RN25 Series)4-13 4-2.
  • Page 5 CONTENTS Pressure Control Mechanism .................. 6-4 Disassembly .......................... 6-5 Removing the Pressure Roller ................. 6-5 Removing the Pressure Solenoid ................6-6 Removing the Pressure Lever Ass’y ................ 6-7 Removing the Pressure Control Motor and Print Pressure Control Sensor ... 6-8 Adjustment ..........................
  • Page 6 CONTENTS Disassembly .......................... 8-7 Removing the Print Drum Front Cover, Ink Cartridge Guide Ass’y, Drum Front Upper Cover ..................8-7 Removing the Ink Cartridge Set Switch Cover and Ink Cartridge Set Switch PCB .. 8-9 Removing the Ink Cartridge Set Switch PCB Mounting Bracket ......8-10 Removing the Swing Base Ass’y ................
  • Page 7 CONTENTS Removing the Master Compression Plate ............10-17 Removing the Motors ................... 10-20 CHAPTER 11: FB ORIGINAL SCANNING SECTION (New Scanner) Mechanism .......................... 11-3 Scanner Table Setting System ................11-3 Original Scanning Mechanism ................11-4 Flatbed Initialization Movement ................11-6 Stage-Glass Original Detection Mechanism ............
  • Page 8 CONTENTS 4-2. Removing the Lamp (RN20/21 Series) .............. 12-16 5-1. Removing the Lens Ass’y (RN25 Series) ............12-18 5-2. Removing the Lens Ass’y (RN20/21 Series) ............12-19 Adjustment ........................12-20 FB Image Elongation & Shrinkage Adjustment ........... 12-20 FB Scan Start Position Adjustment ..............12-20 FB Horizontal Scan Position Adjustment .............
  • Page 9 CONTENTS Adjustment ........................14-16 AF Scan Start Position Adjustment ..............14-16 AF Horizontal Scan Position Adjustment ............. 14-16 AF Image Elongation & Shrinkage Adjustment ........... 14-16 AF Read Sensor Sensitivity Adjustment .............. 14-16 AF Image Skew Adjustment ................. 14-17 CHAPTER 15: MASTER MAKING SECTION Mechanism .........................
  • Page 10 CONTENTS [Vertical Printing Position Initialization Operation] ..........16-6 [Pressure Initialization Operation] ..............16-7 Printing Operations ......................16-9 Normal Overall Printing Operation ................ 16-9 Individual Printing Operations ................16-10 [Print Start Operation] ..................16-10 [Print In Progress - End Operation] ..............16-12 [Three-Cycle No-Paper Pickup Operation] .............
  • Page 11 CONTENTS 1) List of Panel Messages ..................17-3 2) Details on Panel Messages .................. 17-7 1. Serviceman-call errors ................... 17-7 2-1. Jam errors ....................17-20 2-2. Jam errors (Detailed information on G-code errors) 17-24 [400dpi machines] ..3-1. Option errors ....................17-25 3-2.
  • Page 12 CONTENTS Process/Scanning Test Mode ..................18-8 Test Mode No. 100 to 158 ..................... 18-8 Test Mode No. 180 to 184 ..................... 18-9 Test Mode No. 185 to 188 ................... 18-10 Test Mode No. 189 to 193 .................... 18-11 Test Mode No. 194 to 197 ................... 18-12 Test Mode No.
  • Page 13 CONTENTS 3) Paper-Feed/Master-Removal Section ..............20-4 4) Master-Making Section ..................20-5 5) Drive Section ......................20-6 6) Paper-ejection section ................... 20-7 7) Pulse Motor Section ....................20-8 8) Scanner Section ....................20-9 9) Panel Section ....................... 20-10 10) SH/Option ......................20-11 11) RIPM/Option ......................
  • Page 14 Chapter : MAINTENANCE Contents 1. Work Precautions ....................... 1-2 2. Jigs ............................. 1-4 3. Important Precautions ......................1-6 4-1. Unpacking (RN25 series) ....................1-10 4-2. Unpacking (RN20/21 series) ..................1-12 5. Installation Procedure for the RN-B4 Inkless Print Cylinder (Drum) ........1-13 6.

  • Page 15: Work Precautions

    MAINTENANCE 1. Work Precautions When conducting maintenance work, be careful to avoid injury caused by springs or the sharp edges of sheet metal. Inspection If you discover any defects or problems during an inspection, fix the problems or if necessary take steps such as replacing a part.

  • Page 16: Connections

    MAINTENANCE Electrical system work • After removing wire bundles, fasten them with Wiring bundle bands wire bundle bands (bar lock ties) so that they will (bar lock ties) not sag. • When installing parts, be careful to avoid pinching or damaging the wire bundles. •...

  • Page 17: Jigs

    MAINTENANCE 2. Jigs [General jigs] Adjuster 7 015-26128-008 0105 Drum stand 015-26836-002 0106 * The parts numbers are subject to change without prior notice. [ 1 - 4 ]...
  • Page 18 MAINTENANCE [Jigs for RN25 Series] 0108 0107 LED unit 030-90010-050 Using the LED unit (1) Remove the rear cover. (2) Connect the cable of the LED unit to the connector (CN20) on the System PCB. (3) Place the RN25 Series indication sheet over the LED unit. (4) Check the printer condition by observing the LED indications on the LED unit.

  • Page 19: Important Precautions

    MAINTENANCE 3. Important Precautions Precautions regarding installation Installation location and operating environment • Hold discussions with the customer at the time of product delivery to determine the installation location. • The rental contract requires a fixed position for equipment installation. For details, please refer to the equipment rental contract.
  • Page 20 MAINTENANCE Precautions regarding use Operation • Do not switch off the power or unplug the power cord while the printer is in operation. • Do not open any cover or move the printer while the printer is in operation. • Open and close the covers gently. •...
  • Page 21 MAINTENANCE Precautions regarding originals Margins on originals When producing an original, provide sufficient margins on the edges. Generally, on an original, printing is not allowed within 5 mm from the top, 2 mm from the bottom, and 3 mm from the right and left edges. If the margin at the top is insufficient, paper may not be properly fed.
  • Page 22 MAINTENANCE NOTE [ 1 - 9 ]...

  • Page 23: Unpacking (Rn25 Series)

    MAINTENANCE 4-1. Unpacking (RN25 series) Installation Procedure The following procedures are required before turning on the printer. Be sure not to turn the power ON without removing the scanner unit securing Caution screw. Otherwise, it may cause damage to the printer. Open the master roll cover and remove  the screw which locks the scanner table. Screw Open the scanner table and unscrew the scanner unit securing screw. Then remove the screw from the unit sliding it sliding it Scanner unit securing screw to the right-hand. Cover the hole, from which the scanner Seal unit securing screw was removed, with the seal. (To affix the seal easily, it is recommended to make a tab beforehand by folding its edge.) Remove the shock absorbing blocks on  both sides of the Master loading unit. Shock absorbing block 0110 [ 1 - 10 ]...
  • Page 24 MAINTENANCE Open the Master loading unit and remove the shock absorbing sheets. Start up the test mode of the printer and activate the "Scanner release action" (No. 155). Shock absorbing sheet Remove the adhesive cover sheet from the User's guide case and affix the case on the printer. Be sure to consult your customer for the attachment position. User's guide case 0112 [ 1 - 11 ]...

  • Page 25: Unpacking (Rn20/21 Series)

    MAINTENANCE 4-2. Unpacking (RN20/21 series) Installation Procedure The following procedures are required before turning on the printer. Be sure not to turn the power ON without releasing the scanner unit securing screw. Caution Otherwise, it may cause damage to the printer. Open the master roll cover and remove the screw which locks the scanner table.

  • Page 26: Installation Procedure For The Rn-B4 Inkless Print Cylinder (Drum)

    MAINTENANCE 5. Installation Procedure for the RN-B4 Inkless Print Cylinder (Drum) Important • The inkless drum is only for color ink. (Black ink cannot be used.) • Be sure that the print cylinder (drum) temperature is above 59°F (10°C). Print Cylinder (Drum) Preparation (1) Insert an ink cartridge into the Ink cartridge holder.
  • Page 27 MAINTENANCE MEMO [ 1 - 14 ]...

  • Page 28: Exterior Cover Removal

    MAINTENANCE 6. Exterior Cover Removal Bring the print drum to position A, unplug the power cord, and remove the outer covers. FRONT COVER • Remove the mounting screws (bind, M4 x 8: 2 pcs), remove the lower hinge, and dismount the front cover. 0126 0125 Hinge...
  • Page 29 MAINTENANCE REAR COVER • Remove the mounting screws (bind, M3 x 5: 1 pc each) from the two controller connector locks, and dismount the two connector locks. • Remove screws (bind, M4 x 8: 4 pcs) and remove the rear cover. 0129 Connector lock 0128...
  • Page 30 MAINTENANCE STAGE COVER • Remove mounting screw (bind,M4 x 10: 1 pc) from each of the two hinges (right and left) of the stage cover, and then as shown on the photograph, attach those screws in the screw holes behind. •...
  • Page 31 MAINTENANCE SCANNER UNIT COVER (LEFT) • Remove mounting screw (bind, M4 x 8: 4 pcs) and remove the scanner unit cover (left). 0134 Scanner unit cover (left) SCANNER UNIT COVER (REAR) • Remove the stage cover. • Remove mounting screw (bind, M4 x 8: 4 pcs) and remove the scanner unit cover (rear). 0135 Scanner unit cover (rear) [ 1 - 18 ]...
  • Page 32 MAINTENANCE SCANNER UNIT COVER (FRONT) • Open the scanner table. Remove the mounting screws (bind, M4 x 8: 3 pcs) and dismount the scanner table. Scanner unit cover (front) 0136 SCANNER UNIT COVER (RIGHT) • Remove scanner unit cover (front) and scanner unit cover (rear). •...

  • Page 33: Opening The Pcbs (Rn25 Series)

    MAINTENANCE 7. Opening the PCBs (RN25 series) Opening the Main PCB bracket • Remove the rear cover. • Remove the four PCB cover-mounting screws (bind, M3 x 5), and remove the PCB cover. • Disconnect the four connectors. (Disconnection of the CN4 connector disallows master-making operations.) •...
  • Page 34 MAINTENANCE Opening the System PCB bracket • Remove the rear cover. • Disconnect two connectors from the System PCB. • Remove the four mounting screws (bind, M3 x 5), and open the System PCB bracket. Connectors 0142 System PCB 0143 System PCB bracket [ 1 - 21 ]...

  • Page 35: Removal Of The Controller And Main Pcbs (Rn20/21 Series)

    MAINTENANCE 8. Removal of the Controller and Main PCBs (RN20/21 series) CONTROLLER • Remove the rear cover. • Disconnect three connectors from the controller (1 on the top and 2 on the bottom of the controller). • Remove screws (double-washer, M3 x 6: 2 pcs), and pull the controller a little bit to the front, just enough to clear the half-pierced sections, and slide the controller out of the machine.
  • Page 36 MAINTENANCE MAIN PCB • Remove the rear cover. • Remove screws (bind, M3 x 5: 1 pc), and remove the wire harness support plate. • Disconnect all the connectors from the main PCB, remove screws (bind, M3 x 5: 6 pcs), and then remove the main PCB together with the main PCB support bracket B.
  • Page 37 MAINTENANCE MAIN PCB SUPPORT BRACKET A • Unplug the connector of the FB junction wire harness from the junction connector, and then detach the junction connector from the main PCB support bracket A. • Remove seven snap bands from the main PCB support bracket A. •...

  • Page 38: Chapter 2: Machine Summary

    CHAPTER : MACHINE SUMMARY Contents 1-1. Specifications (RN25 Series) ................... 2-2 1-2. Specifications (RN20/21 Series) ..................2-3 2. Cross-Sectional Diagram ....................2-4 3. Operation Outline ....................... 2-5 4. Outline of Paper-feeding, Printing, and Paper-ejection Operations ........2-6 5. Outline of Master-removal, Master-making, and Master-loading Operations ...... 2-7 [ 2 - 1 ]...

  • Page 39: Specifications (Rn25 Series)

    MACHINE SUMMARY 1-1. Specifications (RN25 Series) Given on this and next page are general specification of the RN series machines. Refer to Users Guide (operations manual) on each model for more detailed specification of the machines. Specif ications RN25S eries Original Size A3 (297x420mm) or Ledger (11"x17") Min.

  • Page 40: Specifications (Rn25 Series)

    MACHINE SUMMARY 1-2. Specifications (RN20/21 Series) RN21 Series (Computer Specifications RN20 Series interface standard) Original Size Max. A3 (297x420mm) or Ledger (11"x17") Min. Business Card (50x90mm) or 2"x3.5" Scanning Resolution 300x400dpi Paper Size Max. 290x395mm (11.5"x15.5") Min. 90x140mm (3.5"x5.5") Paper Weight 46-210g/m2 (13-lb bond to 110- lb index) Image Area...

  • Page 41: Cross-Sectional Diagram

    MACHINE SUMMARY 2. Cross-Sectional Diagram 0201 (1) First paper-feed area Sends paper from the paper-feed tray one sheet at a time. (2) Second paper-feed area Stops the paper sent from the first paper-feed stage, and accurately feeds it to the print drum and pressure section. (3) Printing section The pressure roller presses the paper firmly against the print drum for printing and feeding.

  • Page 42: Operation Outline

    MACHINE SUMMARY 3. Operation Outline Set an original, and press the Start key. Master removal operation Removes the used master from the print drum, and sends it to the master disposal box. Master-making operation The original is scanned by the image sensor, and the image is transferred onto a master by the thermal print head.

  • Page 43: Outline Of Paper-Feeding, Printing, And Paper-Ejection Operations

    MACHINE SUMMARY 4. Outline of Paper-feeding, Printing, and Paper-ejection Operations Pickup roller (1) When the print drum rotates, the scraper roller and pickup roller also turn to feed paper. The Scraper roller stripper pad allows only one sheet to pass through to the second paper-feed area.

  • Page 44: Outline Of Master-Removal, Master-Making, And Master-Loading Operations

    MACHINE SUMMARY Outline of Master-removal, Master-making, and Master-laoding Operations Clamp plate Master-release shaft Master-removal operation (1) The clamp plate holding the leading edge of the master opens, and the master-release shaft rises to lift off the master. Master Vertical Transport Roller (2) The vertical transport roller and print drum rotate, thereby separating the master and...
  • Page 45 MACHINE SUMMARY [Memo] [ 2 - 8 ]...

  • Page 46: Chapter 3: Main Drive Section

    CHAPTER : MAIN DRIVE SECTION Contents Mechanism ........................... 3-2 1. Main Drive Section ......................3-2 2. Main Motor Safety Mechanism ................... 3-3 3. Print Drum Position Check Mechanism ................3-4 Disassembly ..........................3-6 1. Removing the Main Motor Unit ................... 3-6 2.

  • Page 47: Mechanism

    MAIN DRIVE SECTION Mechanism 1. Main Drive Section When the main motor [A] is turned on, the main pulley [B] rotates and the rotation is transmitted to the print drum pulley [D] via the main belt [C]. The main motor encoder sensor [E] detects the speed and position of the main motor [A]. 0301 A: Main motor B: Main pulley...

  • Page 48: Main Motor Safety Mechanism

    MAIN DRIVE SECTION 2. Main Motor Safety Mechanism Two safety switches (flatbed set switch [A] and print drum safety switch [B]) prevent the motor from being turned on if parts are not positioned. 0304 0305 A: Flatbed set switch B: Print drum safety switch [ 3 - 3 ]...

  • Page 49: Print Drum Position Check Mechanism

    MAIN DRIVE SECTION 3. Print Drum Position Check Mechanism The print drum’s rotation position is detected by the main motor encoder sensor referenced to the position A detected by the position A sensor [A] on the machine and position A detection plate [B] on the print drum.
  • Page 50 MAIN DRIVE SECTION [Memo] [ 3 - 5 ]...

  • Page 51: Disassembly

    MAIN DRIVE SECTION Disassembly 1. Removing the Main Motor Unit (1) Bring the print drum to Position A, switch off the power, and remove the following covers and parts (in the case of the RN25 Series, open the main PCB bracket and System PCB bracket, and remove the connector bracket).
  • Page 52 MAIN DRIVE SECTION 0310 0311 <RN20/21 Series> Main motor unit 0313 <RN25 Series> Main motor unit 0312 [Precautions on Reassembly] • Align the position-A alignment mark [J] on the drum pulley with the position-A alignment mark [K] on the main pulley, turn the idler C ass’y [E] counterclockwise to secure it in place, and make sure the main belt is taut.

  • Page 53: Removing The Flatbed Set Switch

    MAIN DRIVE SECTION 2. Removing the Flatbed Set Switch (1) Pull out the print drum and remove the covers. • Front door • Front cover (2) Unplug the connector [C], remove the mounting screws (M4 x 6: 2 pcs), and then remove the entire flatbed set switch cover [A].

  • Page 54: Removing The Print Drum Safety Switch

    MAIN DRIVE SECTION 3. Removing the Print Drum Safety Switch (1) Pull out the print drum. (2) Remove the covers. • Front door • Front cover (3) Remove the print drum safety switch cover [B]. (bind, M4 x 6: 2 pcs) (4) Unplug the connector [C], remove the mounting screws (washer, M3 x 14: 2 pcs), and then remove the print drum safety switch [A].

  • Page 55: Removing The Main Belt

    MAIN DRIVE SECTION 4. Removing the Main Belt (1) Execute a confidential master, remove the print drum, and detach the rear cover. <RN25 Series> (2) Open the main PCB bracket and System PCB bracket, and then remove the System PCB bracket and connector bracket.
  • Page 56 MAIN DRIVE SECTION (7) Detach the C-ring from the pressure shaft, remove the eight stay ass’y mounting screws (RS tight, M4 x 8: 8pcs), and then remove the R stay ass’y [F], main belt [G], and pressure cam [H]. E: Position-A plate F: Stay ass’y G: Main belt H: Pressure cam...

  • Page 57: Adjustment

    MAIN DRIVE SECTION Adjustment 1. Print-Drum Position-A Adjustment Checks and adjustment (1) Pull out the print drum and return it back after removing the master attached to it. (2) Start the Test Mode, and run Test Mode No. 551 (Print Drum on Position A). (3) Open the scanner table.

  • Page 58: Chapter 4: First Paper Feed Section

    CHAPTER : FIRST PAPER FEED SECTION Contents Mechanism ........................... 4-2 1. Paper Feed Tray Mechanism ..................... 4-2 2-1. Paper Feed Tray Elevation Mechanism (RN25 Series) ........... 4-3 2-2. Paper Feed Tray Elevation Mechanism (RN20/21 Series) ..........4-4 3. Paper Feed Tray Safety Mechanism .................. 4-5 4.

  • Page 59: Mechanism

    FIRST PAPER FEED SECTION Mechanism 1. Paper Feed Tray Mechanism 1) Horizontal positioning (horizontal print positioning) of the paper feed tray With RN25 Series, by turning the adjustment dial [B] by hand, the paper-feed tray [A] can be moved ±10 mm to the right or left when the paper width is 274 mm or less, ±5 mm to the right or left when the paper width is between 275 mm and 291 mm, or ±3 mm to the right or left when the paper width is between 292 mm and 297 mm.

  • Page 60: Paper Feed Tray Elevation Mechanism (Rn25 Series)

    FIRST PAPER FEED SECTION 2-1. Paper Feed Tray Elevation Mechanism (RN25 Series) The presence of paper in the paper-feed tray [A] is detected by the paper-detection sensor [B]. When light is received by the paper-detection sensor [B], pressing the Start key activates the elevator motor [F] and raises the paper-feed tray [A] until the scraper ass’y [C] blocks the light beam to upper- limit sensor A [D] or upper-limit sensor B [E].

  • Page 61: Paper Feed Tray Elevation Mechanism (Rn20/21 Series)

    FIRST PAPER FEED SECTION 2-2. Paper Feed Tray Elevation Mechanism (RN20/21 Series) The presence of paper loaded in the paper feed tray [A] is detected by the paper detection sensor [B]. When light is received at the paper detection sensor [B] (paper present), pressing the Start key activates the elevator motor [E] and raises the paper feed tray [A] until the scraper assembly [C] blocks the light beam of the upper limit sensor [D].

  • Page 62: Paper Feed Tray Safety Mechanism

    FIRST PAPER FEED SECTION 3. Paper Feed Tray Safety Mechanism The paper feed tray lower safety switch [C] ensures safety while the paper feed tray is being raised or lowered or is stationary. If the safety switch actuator plate [B] is depressed, the paper feed tray lower safety switch [C] trips. An error in the paper feed tray is then assumed, and the machine stops.

  • Page 63: First Paper Feed Drive Mechanism

    FIRST PAPER FEED SECTION 4. First Paper Feed Drive Mechanism When the printing operation commences, the main motor [A] activates to rotate the print drum via the main belt [C]. When the main motor [A] is running, the paper feed timing belt [D] continuously drives the pulley on the paper feed clutch [E].

  • Page 64: Paper Strip Mechanism

    FIRST PAPER FEED SECTION 5. Paper Strip Mechanism The paper loaded in the paper feed tray is fed in between the pickup roller [A] and stripper pad [B] by the rotating scraper roller. The paper is then separated by the pickup roller [A] and stripper pad [B] to ensure that only the uppermost sheet is sent into the machine.

  • Page 65: Paper Feed Pressure Adjust Lever

    FIRST PAPER FEED SECTION 6. Paper Feed Pressure Adjust Lever The paper feed pressure adjust lever [A] is located on the left-hand side of the scraper unit, and moving this to the left or right switches the scraper-roller paper-feed pressure (scraper pressure) from NORMAL (weak) and CARD (strong).

  • Page 66: Disassembly

    FIRST PAPER FEED SECTION Disassembly 1. Removing the Paper Feed Tray Unit (1) Lower the paper feed tray [F] fully. (2) Remove the rear cover. (3) Unplug the connector [A] on the wire harness [B] from the paper feed tray [F]. Remove the mounting screw (double-washer, M4 x 6: 1 pc) and remove the ground screw [D].

  • Page 67: Removing The Paper Width Potentiometer, Paper Detection Sensor, And Paper Size Detection Sensor

    FIRST PAPER FEED SECTION 2. Removing the Paper Width Potentiometer, Paper Detection Sensor, and Paper Size Detection Sensor (1) Remove the paper feed tray unit. (2) Remove the E-ring and remove the adjustment dial [A]. (3) Remove the E-rings [C] and bearings from both sides of the slide shaft [B]. (4) Remove the shoulder screws (2 pcs) [D] and remove the paper-feed mounting plate [E].
  • Page 68 FIRST PAPER FEED SECTION 0419 [Precautions on Reassembly] • With the fence opened fully, mount the spur gear [L] and the flat face of the potentiometer shaft [M] facing the printer body. (See photograph below.) • Be sure to adjust the paper-width potentiometer (refer to 4-25). Printer main body side Printer main...

  • Page 69: Removing The Pickup And Scraper Rollers

    FIRST PAPER FEED SECTION 3. Removing the Pickup and Scraper Rollers Removing the scraper roller (1) Lower the paper feed tray fully and switch off the power. (2) Remove the lock ring [E] on the scraper roller shaft [C]. (3) Slide the scraper roller [D] off the scraper roller shaft [C]. Removing the Pickup roller (1) Lower the paper feed tray fully and switch off the power.

  • Page 70: Removing The Feed Tray Descent Button And Upper Limit Sensor (Rn25 Series)4-13

    FIRST PAPER FEED SECTION 4-1. Removing the Feed Tray Descent Button and Upper Limit Sensor (RN25 Series) (1) Remove the master-removal lower cover. (bind, M4 x 8: 4 pcs) (2) Disconnect the two connectors, remove the mounting screw (double-washer, M4 x 8, 1 pc), and dismount the paper-feed upper-limit sensor A [A] and paper-feed upper-limit sensor B [B] together with the W-upper-limit-sensor detection plate A [C].

  • Page 71: Removing The Feed Tray Descent Button And Upper Limit Sensor (Rn20/21 Series)4

    FIRST PAPER FEED SECTION 4-2. Removing the Feed Tray Descent Button and Upper Limit Sensor (RN20/21 Series) (1) Remove the master-removal lower cover. (bind, M4 x 8: 4 pcs) (2) Unplug connector [A], remove the mounting screw (double-washer, M4 x 8: 1 pc), and then remove the upper limit sensor [B] together with the upper limit sensor bracket [C].

  • Page 72: Removing The Paper Feed Clutch

    FIRST PAPER FEED SECTION 5. Removing the Paper Feed Clutch (1) Remove the rear cover. (2) Loosen the retaining screw [C] on the idler A ass’y [B], and reduce the tension on the paper feed timing belt [E]. (3) Unplug the connector [F], remove the E-ring, and remove the paper feed clutch [D]. [Precautions on Reassembly] •...

  • Page 73: Removing The Pickup Roller Shaft Ass'y

    FIRST PAPER FEED SECTION 6. Removing the Pickup Roller Shaft Ass’y (1) Remove the covers. • Rear cover • Master-removal lower cover (2) Remove the pickup and scraper rollers. (3) Remove the upper limit sensor. (4) Remove the paper feed clutch. (5) Remove the E-rings and bearing bushes [A] on either end of the pickup roller shaft.

  • Page 74: Removing The Elevator Motor

    FIRST PAPER FEED SECTION 7. Removing the Elevator Motor (1) Lower the paper feed tray fully, switch off the power, and pull out the print drum. (2) Remove the covers. • Front door • Front cover • Master removal lower cover (3) Hold the wire harness band [E] from the inside, detach it from the side panel, and then disconnect the two master removal unit connectors [F].

  • Page 75: Removing The Paper Feed Tray Lower Safety Switch

    FIRST PAPER FEED SECTION 8. Removing the Paper Feed Tray Lower Safety Switch (1) Remove the screws (shoulder screw, M4 x 30: 2 pcs), securing the printer to the Risograph stand. (2) Remove the rear cover. (3) Slide out the machine from the Risograph stand (in the direction shown by the arrow in the photograph) far enough to allow a screwdriver to be inserted in the mounting screws on the grip handle [A].

  • Page 76: Removing The Stripper Unit

    FIRST PAPER FEED SECTION 9. Removing the Stripper Unit (1) Lower the paper feed tray fully. (2) Place a finger on the top of the stripper unit [A] and pull it forward to remove it. [Precautions on Reassembly] • Be sure to keep the stripper-pad ass’y [B] fully pushed back when installing the stripper unit [A] to the paper guide plate [C].

  • Page 77: Removing The Stripper Pad Ass'y

    FIRST PAPER FEED SECTION 10. Removing the Stripper Pad Ass’y (1) Lower the paper feed tray fully, and remove the stripper unit. (2) Lift up the stripper pad ass’y [A] by hand and remove it. [Precautions on Reassembly] • To attach the stripper pad [B], firmly press the bottom of the stripper pad [B] onto the face of the stripper-pad base [C] as indicated by the arrow and stick them together.

  • Page 78: Adjustment

    FIRST PAPER FEED SECTION Adjustment 1-1. Upper Limit Sensor Position Adjustment (RN25 Series) Adjustment (1) Remove the paper from the paper-feed tray, and set the paper-feed pressure lever to “NORMAL.” (2) Start Test Mode No. 453 (elevator servo) and raise the paper feed tray and bringing it to a complete stop.

  • Page 79: Upper Limit Sensor Position Adjustment (Rn20/21 Series)

    FIRST PAPER FEED SECTION 1-2. Upper Limit Sensor Position Adjustment (RN20/21 Series) Adjustment (1) Remove the paper on the paper feed tray. (2) Start Test Mode No. 453 (Elevator-Motor Servo Action) and raise the paper feed tray and bringing it to a complete stop.

  • Page 80: Stripper Unit Adjustment

    FIRST PAPER FEED SECTION 2. Stripper Unit Adjustment Adjustment (1) Slide the paper feed pressure adjust lever to suit the paper type before printing. (2) If multiple feeding or non-feeding occurs, adjust the stripper-pad angle and pressure. Multiple feeding • Turn the stripper pad angle adjust knob [A] clockwise to increase the stripper-pad angle (raise the pad more vertically).

  • Page 81: Paper-Feed Clutch On Angle Adjustment

    FIRST PAPER FEED SECTION 3. Paper-Feed Clutch ON Angle Adjustment Checks and adjustment (1) Test print to check that paper is fed smoothly. (2) If the first-stage paper-feed timing is not synchronized, adjust using Test Modes Nos. 495 through 498 (paper-feed clutch ON angle adjustment) according to the paper-type setting in the User Mode. (For the setting procedure, refer to Chapter 18 “Test Mode.”) (3) Repeat from step (1) until correct timing is achieved.

  • Page 82: Paper-Width Potentiometer Compensation

    FIRST PAPER FEED SECTION 6. Paper-Width Potentiometer Compensation Checks and adjustment (1) Start Test Mode No. 491 (Paper Size VR Adjustment Selection), and set “1” (for 297-mm width compensation) in the case of a model capable of feeding A3-size paper, or “0” (for 210-mm width compensation) for other models (not compatible with A3-size paper).
  • Page 83 FIRST PAPER FEED SECTION [Memo] [4 -26 ]...

  • Page 84: Chapter 5: Second Paper Feed Section

    CHAPTER : SECOND PAPER FEED SECTION Contents Mechanism ........................... 5-2 1. Second Paper Feed Mechanism ..................5-2 2. Vertical Print Positioning Mechanism .................. 5-4 Disassembly ..........................5-6 1. Removing the Guide Roller Ass’y ..................5-6 2. Removing the Paper Guide Plate Ass’y ................5-7 3.

  • Page 85: Mechanism

    SECOND PAPER FEED SECTION Mechanism 1. Second Paper Feed Mechanism When the main motor operates during printing, the main cam [A] rotates clockwise. The main cam [A] rotation moves the timing gear [C] via the cam follower arm [B], and this rotates the timing cam [D].
  • Page 86 SECOND PAPER FEED SECTION Drum position-A At drum position-A, the protrusion on the timing cam [B] pushes against the timing lever [C] to raise the guide roller [D]. 0502 First paper feed start When the first paper feed starts and the paper is fed in, the timing gear [E] is rotated in the direction, indicated by arrow mark, by the main cam [A].

  • Page 87: Vertical Print Positioning Mechanism

    SECOND PAPER FEED SECTION 2. Vertical Print Positioning Mechanism Pressing the print position keys on the panel activates the print positioning pulse motor [A], which rotates the print positioning adjuster cam [B] to move the print positioning plate ass’y [C]. The print positioning plate ass’y [C] motion moves the print positioning lever ass’y [E], changing the timing with the main cam.
  • Page 88 SECOND PAPER FEED SECTION 1) Pressing the (up) key on the panel When the key is pressed, the print- positioning cam [C] and print-positioning plate ass’y [B] move in the directions indicated by arrows. The movement of the print-positioning plate ass’y [B] also moves the print-positioning lever ass’y [D], and the bearing [E] in contact with the main cam [A] moves in the direction...

  • Page 89: Disassembly

    SECOND PAPER FEED SECTION Disassembly 1. Removing the Guide Roller Ass’y (1) Pull out the print drum and remove the following covers. • Front door • Front cover • Rear cover (2) <RN 25 Series> Remove the PCB cover, and open the main PCB bracket. <Rn 20/21 Series>...

  • Page 90: Removing The Paper Guide Plate Ass'y

    SECOND PAPER FEED SECTION 2. Removing the Paper Guide Plate Ass’y (1) Pull out the print drum and remove the following covers. • Front door • Front cover • Rear cover • Master-removal lower cover (2) Remove the following components. •...
  • Page 91 SECOND PAPER FEED SECTION (6) Unplug the connector from the paper guide plate [A], remove the mounting screws (RS tight, M4 x 8: 7 pcs), and then remove the paper guide plate [A]. 0512 Enlarged view [Precautions on Reassembly] • Hook the paper guide plate [A] onto the timing roller bearing bushes [B]. (See enlarged view.) •...

  • Page 92: Removing The Paper Sensor

    SECOND PAPER FEED SECTION 3. Removing the Paper Sensor (1) Pull out the print drum and remove the following covers. • Front door • Front cover • Rear cover • Master removal lower cover (2) Remove the following components. • Paper feed tray unit •...

  • Page 93: Removing The Timing Roller

    SECOND PAPER FEED SECTION 4. Removing the Timing Roller (1) Remove the following covers. • Front door • Front cover • Rear cover • Master removal lower cover (2) Remove the following components. • Paper feed tray unit • Stripper unit •...
  • Page 94 SECOND PAPER FEED SECTION 0516 Load spring mounting direction A: Timing roller B: Timing cam C: Collar D: Load spring E: Bearing bush [ 5 - 11 ]...

  • Page 95: Removing The Print-Positioning Unit

    SECOND PAPER FEED SECTION 5. Removing the Print-Positioning Unit (1) Remove the rear cover. (2) <RN25 Series> Remove the PCB cover, and open the main PCB bracket. Remove the connector bracket. <RN20/21 Series> Remove the controller. (3) Remove the timing gear spring [A]. (4) Unplug the connectors on the vertical centering sensor [B] and print-positioning pulse motor [C].

  • Page 96: Removing The Vertical Centering Sensor

    SECOND PAPER FEED SECTION 6. Removing the Vertical Centering Sensor (1) Remove the rear cover. (In the case of the RN25 Series, also remove the connector bracket.) (2) Unplug the connector, remove the mounting screw (double-washer, 3 x 6: 1 pc), and then remove the vertical centering sensor [B] together with the vertical centering sensor bracket [C].

  • Page 97: Removing The Print-Positioning Pulse Motor

    SECOND PAPER FEED SECTION 7. Removing the Print-Positioning Pulse Motor (1) Remove the rear cover. (2) <RN25 Series> Remove the PCB cover, and open the main PCB bracket. Remove the connector bracket. <RN20/21 Series> Remove the controller. (3) Remove the following components. •...

  • Page 98: Removing The Timing Gear

    SECOND PAPER FEED SECTION 8. Removing the Timing Gear (1) Remove the rear cover. (2) <RN25 Series> Remove the PCB cover, and open the main PCB bracket. Remove the connector bracket. <RN20/21 Series> Remove the controller. (3) Remove the following components. •...

  • Page 99: Adjustment

    SECOND PAPER FEED SECTION Adjustment 1. Timing Cam Mounting Position Checks and adjustment (1) Move the print drum to position A, centralize the printing position, switch off the power, and then remove the rear cover. (2) With the position-A positioning mark on the main pulley properly aligned, confirm that the positioning marks [C] on the timing gear [B] and timing cam [A] are aligned (see photograph 1).

  • Page 100: Chapter 6: Press Section

    CHAPTER : PRESS SECTION Contents Mechanism ........................... 6-2 1. Press Mechanism ....................... 6-2 2. Pressure Control Mechanism ..................... 6-4 Disassembly ..........................6-5 1. Removing the Pressure Roller .................... 6-5 2. Removing the Pressure Solenoid ..................6-6 3. Removing the Pressure Lever Ass’y ................... 6-7 4.

  • Page 101: Mechanism

    PRESS SECTION Mechanism 1. Press Mechanism The main motor activates when printing begins, and the pressure solenoid [F] activates once the print drum rotates through 40°. As the clamp plate base on the print drum approaches the pressure roller, the protrusion on the pressure cam [A] pushes against pressure lever A [B] to rotate it clockwise.
  • Page 102 PRESS SECTION 0603 Pressure roller is raised. 0604 Pressure roller is lowered. A: Pressure cam B: Pressure lever A C: Pressure lever B D: Pressure spring E: Second pressure spring F: Pressure solenoid G: Solenoid lever H: Pressure shaft [ 6 - 3 ]...

  • Page 103: Pressure Control Mechanism

    PRESS SECTION 2. Pressure Control Mechanism Pressing the print density keys on the panel activates the pressure control motor [A] and moves the print pressure gear ass’y [D]. The movement of the print pressure gear ass’y [D] varies the tension of the second pressure spring [B].

  • Page 104: Disassembly

    PRESS SECTION Disassembly 1. Removing the Pressure Roller (1) Pull out the print drum. (2) Insert a screwdriver through the opening in the front frame of the machine, and remove the retaining screw [B]. (3) Slide the pressure roller [A] forward until the bearing [C] disengages from the pressure roller bracket [D], and then lift upward to remove it.

  • Page 105: Removing The Pressure Solenoid

    PRESS SECTION 2. Removing the Pressure Solenoid (1) Remove the rear cover. (In the case of the RN25 Series, also open the System PCB bracket.) (2) Remove the mounting screws (RS tight, M4 x 8: 3 pcs), and pull the filter PCB unit [A] forward. (3) Open the scanner table, and remove the second pressure spring [B] and pressure ring [C].

  • Page 106: Removing The Pressure Lever Ass'y

    PRESS SECTION 3. Removing the Pressure Lever Ass’y (1) Make a confidential master, and then bring the print drum to position A. (2) Open the scanner table, and remove the rear cover. (In the case of the RN25 Series, also open the main PCB bracket and System PCB bracket.) (3) Pull forward the filter PCB unit.

  • Page 107: Removing The Pressure Control Motor And Print Pressure Control Sensor

    PRESS SECTION 4. Removing the Pressure Control Motor and Print Pressure Control Sensor Removing the Pressure Control Motor (1) Remove the rear cover. (2) Remove the E-ring and the drive transfer gear [C]. (3) Unplug the connector [B] on the pressure control motor [A], remove the mounting screws (double- washer, M3 x 6: 2 pcs), and then remove the pressure control motor [A].
  • Page 108 PRESS SECTION [Memo] [ 6 - 9 ]...

  • Page 109: Adjustment

    PRESS SECTION Adjustment 1. Mounting Position of the Pressure Lever Ass’y Checks and adjustment (1) Make a confidential master, and then bring the print drum to position A. (2) Remove the rear cover. (In the case of the RN25 Series, also open the main PCB bracket and System PCB bracket.) (3) Pull out the filter PCB unit in the forward direction.
  • Page 110 PRESS SECTION 0616 Detailed figure 1 0617 Detailed figure 2 A: Pressure lever B B: Pressure lever A C: Allen wrench (3 mm) D: Solenoid lever E: Pressure shaft [ 6 - 11 ]...
  • Page 111 PRESS SECTION [Memo] [ 6 - 12 ]...

  • Page 112: Chapter 7: Paper Ejection Section

    CHAPTER : PAPER EJECTION SECTION Contents Mechanism ........................... 7-2 1. Paper Ejection Mechanism ....................7-2 2. Paper Separator Mechanism ....................7-3 3. Paper-Ejection-Wing Mechanism ..................7-4 Disassembly ..........................7-6 1. Removing the Paper Receiving Tray .................. 7-6 2. Removing the Suction Unit ....................7-7 3.

  • Page 113: Mechanism

    PAPER EJECTION SYSTEM Mechanism 1. Paper Ejection Mechanism Printed paper is first detached from the print drum by the separator [B], by air blown from the separator (except for 210), and by two separation fans [F]. It is then sent to the paper receiving tray by the transfer belts [E].

  • Page 114: Paper Separator Mechanism

    PAPER EJECTION SYSTEM 2. Paper Separator Mechanism The separator [A] is close to the print drum when the paper is being detached from the print drum. As the print drum rotates and the clamp plate base approaches the separator [A], the separator arm ass’y [G] is pushed by the pressure cam [F] on the print drum pulley.

  • Page 115: Paper-Ejection-Wing Mechanism

    PAPER EJECTION SYSTEM 3. Paper-Ejection-Wing Mechanism Set the positions of the right- and left-hand paper ejection wings on the paper receiving tray according to the type of paper used. <RN25 Series> The paper ejection wings can be moved by rotating the wing cam [B] using the paper-ejection-wing motor [A].
  • Page 116 PAPER EJECTION SYSTEM Setting the paper-ejection-wing positions (1) Raised position Both the M wing and S wing are raised. This setting is for normal paper of A4 size or smaller. RN25 Series: Paper-feed pressure lever set to “NORMAL,” and paper-width potentiometer set to A4 or smaller.

  • Page 117: Disassembly

    PAPER EJECTION SYSTEM Disassembly 1. Removing the Paper Receiving Tray (1) Remove the retaining plates [B] from both sides of the paper receiving tray [A] (bind, M4 x 6: 1 pc each). (2) Fold down the fences on the paper receiving tray, and close the paper receiving tray to an angle slightly greater than 45 degrees.

  • Page 118: Removing The Suction Unit

    PAPER EJECTION SYSTEM 2. Removing the Suction Unit <RN25 Series> (1) Switch off the power, remove the rear cover, and detach the paper receiving tray. (2) Remove the mounting screws (bind, M4 x 8: 4 pcs), and detach the suction unit cover [A]. 0714 (3) Disconnect the two suction unit connectors [B].
  • Page 119 PAPER EJECTION SYSTEM <RN20/21 Series> (1) Switch off the power, remove the rear cover, and detach the paper receiving tray. (2) Remove the mounting screws (bind, M4 x 8, 4 pcs), and detach the suction unit cover [A]. 0717 (3) Disconnect the suction unit connector [B]. (4) Remove the mounting screws (bind, M4 x 8: 2 pcs), and detach the suction unit [C].
  • Page 120 PAPER EJECTION SYSTEM [Precautions on Reassembly: RN20/21 Series] • When installing the suction unit cover [A], confirm that the protrusions [D] on the rear of the wing levers are positioned at the locations of the suction unit indicated in the photographs below. 0720 0722 0721...
  • Page 121 PAPER EJECTION SYSTEM [Precautions on Reassembly: All Models] • Hook the indented sections [G] at the right- and left-hand edges of the suction unit onto the pins [H] on the side panels of the main unit. 0725 0724 G: Indented section at the suction unit front edge H: Pins on the main-unit side panels 0726...

  • Page 122: Removing The Suction Fan

    PAPER EJECTION SYSTEM 3. Removing the Suction Fan (1) Switch off the power, remove the rear cover, and remove the following components. • Paper receiving tray • Suction unit cover • Suction unit (2) Turn the suction unit [A] upside down, and unplug the suction fan connector [B]. (3) Remove the mounting screws (washer, M4 x 10: 3 pcs), and remove the suction fan [C].

  • Page 123: Removing The Transfer Plate

    PAPER EJECTION SYSTEM 4. Removing the Transfer Plate (1) Switch off the power, remove the rear cover, and remove the following components. • Paper receiving tray • Suction unit cover • Suction unit (2) Lift the conveyor pulleys [A] by hand, disengage them from the notched sections on the suction unit, and remove them.

  • Page 124: Removing The Paper Ejection Motor And Encoder Sensor

    PAPER EJECTION SYSTEM 5. Removing the Paper Ejection Motor and Encoder Sensor Removing the paper ejection motor (1) Switch off the power, remove the rear cover, and remove the following components. • Paper receiving tray • Suction unit cover • Suction unit •...

  • Page 125: Removing The Wing Hp Sensor

    PAPER EJECTION SYSTEM 6. Removing the Wing HP Sensor (1) Switch off the power, detach the rear cover, and remove the following parts: • Paper receiving tray • Suction unit cover • Suction unit • Transfer plate (2) Disconnect the connector [B] of the wing HP sensor [A]. (3) Remove the mounting screw (RS tight, M3 x 6: 1 pc), and detach the wing HP sensor together with the mounting bracket [C].

  • Page 126: Removing The Paper-Ejection-Wing Shafts

    PAPER EJECTION SYSTEM 7. Removing the Paper-Ejection-Wing Shafts (1) Switch off the power, detach the rear cover, and remove the following parts: • Paper receiving tray • Suction unit cover • Suction unit • Transfer plate • Connection plate [A] (RN20/21 Series only) 0736 (2) From the rear of the suction unit, remove the wing support plate [B] mounted on the S wing F [H] (double-washer, M3 x 6: 2 pcs).
  • Page 127 PAPER EJECTION SYSTEM (4) Remove the S wing F [H] (double-washer, M3 x 8: 1 pc). (5) Remove the S wing R [J] (double-washer, M3 x 8: 1 pc). (6) Unhook the M-wing spring F [E] and M-wing spring R [F] from the protrusions [L] on the suction unit base.

  • Page 128: Removing The Paper-Ejection-Wing Motor (Rn25 Series)

    PAPER EJECTION SYSTEM 8. Removing the Paper-Ejection-Wing Motor (RN25 Series) (1) Switch off the power, detach the rear cover, and remove the following parts: • Paper receiving tray • Suction unit cover • Suction unit • Transfer plate • Paper ejection wings, wing shafts (2) Disconnect the connector, remove the mounting screws (double-washer, M3 x 6: 2 pcs), and detach the paper-ejection-wing motor [A].

  • Page 129: Removing The Transfer Belts

    PAPER EJECTION SYSTEM 9. Removing the Transfer Belts (1) Switch off the power, remove the rear cover, and remove the following components. • Paper receiving tray • Suction unit cover • Suction unit • Transfer plate • Paper ejection wings, wing shafts (2) Remove the paper ejection motor belt [A].

  • Page 130: Removing The Separation Fan Unit

    PAPER EJECTION SYSTEM 10. Removing the Separation Fan Unit (1) Switch off the power and remove the rear cover. (2) Unplug the separation fan unit connector [A]. (3) Remove the mounting screws (bind, M4 x 8: 2 pcs) [B] on the separation fan unit [C], and remove the separation fan unit by sliding it in the same direction that paper is ejected.

  • Page 131: Removing The Separator Fan And Paper Receiving Sensor

    PAPER EJECTION SYSTEM 11. Removing the Separator Fan and Paper Receiving Sensor Removing the separator fan (1) Switch off the power, detach the rear cover, and remove the separation fan unit. (2) Remove the nozzle mounting screw (P tight, M3 x 10: 3 pcs) [A], and remove the nozzle [E]. (3) Unplug the two separation fan connectors [D].

  • Page 132: Removing The Separator (Rn25 Series)

    PAPER EJECTION SYSTEM 12-1. Removing the Separator (RN25 Series) (1) Pull out the print drum, switch off the power, and remove the front cover. Remove the rear cover, then open the System PCB bracket and remove separator fan. (2) Move the separator air-hose band [A] to the side, and detach the hose. (The air-hose band’s knob points upwards.) (3) Remove the separator mounting screw (double-washer, M3 x 8: 1 pc) [B].
  • Page 133 PAPER EJECTION SYSTEM (5) Push the Separation shaft [F] back slightly, and remove the rear bearing bush [E] from the machine side frame. Do not push back the shaft more than necessary. To prevent the components mounted on the rear from detaching, stop pushing back the shaft once the bush in the rear has been removed.

  • Page 134: Removing The Separator (Rn20/21 Series)

    PAPER EJECTION SYSTEM 12-2. Removing the Separator (RN20/21 Series) (1) Pull out the print drum, switch off the power, and remove the front cover. (2) Remove the separator mounting screw (double-washer, M3 x 8: 1 pc) [A]. (3) Remove the release arm mounting screw (double-washer, M3 x 8: 1 pc) [B]. (4) Remove the E-ring [C] on the end of the separation shaft, and remove the bearing bush.
  • Page 135 PAPER EJECTION SYSTEM (5) Push the separation shaft back slightly, and remove the rear bearing bush from the machine side frame. Do not push back the shaft more than necessary. To prevent the components mounted on the rear from detaching, stop pushing back the shaft once the bush in the rear has been removed. (6) Slide the separator and release arm forward and remove both of these parts off the machine.

  • Page 136: Removing The Air-Pump Ass'y (Rn25 Series)

    PAPER EJECTION SYSTEM 13. Removing the Air-Pump Ass’y (RN25 Series) (1) Switch off the power with the drum at position A. (2) Detach the rear cover, open the System PCB bracket, and then remove the following components: • Suction unit •...
  • Page 137 PAPER EJECTION SYSTEM (6) Remove the three air-pump-cam mounting screws (double-washer, M4 x 8: 3pcs) [E], and detach the air-pump cam [F]. (7) Remove the four air-pump mounting screws (double-washer, M4 x 14: 4pcs) [C], and then remove the air-pump bracket [G]. Remove the main motor before removing the air-pump belt (refer to Chapter 3: Main Drive Section).
  • Page 138 PAPER EJECTION SYSTEM [Precautions on Reassembly] • Install the air-pump cam by aligning the alignment mark [B] on the air-pump cam [A] with the alignment mark [D] on the air-pump bracket [C], inserting a 2.5 mm allen wrench into the holes in the air-pump cam and air-pump bracket, and aligning the air-pump-cam position with the air-pump cam bracket.

  • Page 139: Adjustment

    PAPER EJECTION SYSTEM Adjustment 1. Separator Mounting Position Checks and adjustment (1) Using Test Chart No. 15, create a master and make prints. Confirm that no misfeeding of paper or black streaks are caused by the separator contacting the center of the print drum (acceptable if there is no misfeeding of paper when a 5-mm margin is provided at the top).

  • Page 140: Chapter 8: Print Drum Section

    CHAPTER : PRINT DRUM SECTION Contents Mechanism ........................... 8-2 1. Master on Drum (Pre-printing) Check Mechanism ............. 8-2 2. Print Drum Set Mechanism ....................8-3 3. Ink Cartridge Set Switch PCB ..................... 8-4 4. Print Drum Rotating Mechanism ..................8-5 5.

  • Page 141: Mechanism

    PRINT DRUM SECTION Mechanism 1. Master on Drum (Pre-printing) Check Mechanism This mechanism checks whether there is a master on the print drum when printing begins. The print drum begins to rotate when the Start key is pressed, and when the print drum reaches the 75° position, the master sensor [B] checks whether there is a master [C] on the print drum.

  • Page 142: Print Drum Set Mechanism

    PRINT DRUM SECTION 2. Print Drum Set Mechanism The print drum set sensor [A] checks whether the print drum is correctly set in the machine. A light beam from the print drum set sensor [A] is transmitted when the levers are gripped, and blocked when they are released.

  • Page 143: Ink Cartridge Set Switch Pcb

    PRINT DRUM SECTION 3. Ink Cartridge Set Switch PCB Different ink cartridge set switch PCBs are used for the black ink and color ink print drums. The black ink cartridge set switch PCB [A] has five sensors, while the color ink cartridge set switch PCB [B] has three sensors.

  • Page 144: Print Drum Rotating Mechanism

    PRINT DRUM SECTION 4. Print Drum Rotating Mechanism When the main motor rotates, the drive power is transmitted to the joint gear [A] and also the print-drum main gear [C] via the junction gear ass'y [B]. The rotation also drives the squeegee roller gear (R) [D] via the gears to rotate the squeegee roller [E]. The squeegee roller [E] drives the driven shaft [H] via the squeegee roller gear (F) [F].

  • Page 145: Inking Mechanism

    PRINT DRUM SECTION 5. Inking Mechanism When the main motor is operating and the print drum is rotating, if the ink bead moves away from the Ink sensor [D], the inking motor activates to pump in the ink from the ink cartridge. The ink pumped is fed via the hose onto the squeegee roller [E].

  • Page 146: Disassembly

    PRINT DRUM SECTION Disassembly 1. Removing the Print Drum Front Cover, Ink Cartridge Guide Ass’y, Drum Front Upper Cover 0813 Removing the print drum front cover (1) Remove the left- and right-hand mounting screws (IB lock, M4 x 6: 1 pc each) [E] on the print drum front cover [A], and then remove the cover itself.
  • Page 147 PRINT DRUM SECTION Removing the drum front upper cover (4) Remove the ink cartridge guide ass’y. (5) Remove the mounting screws (IB lock, M4 x 6: 2 pcs) [E] on the drum front upper cover [C], and then remove without damaging the two hooks [F] at the inside bottom of the cover. 0817 0818 C: Drum front upper cover...

  • Page 148: Removing The Ink Cartridge Set Switch Cover And Ink Cartridge Set Switch Pcb

    PRINT DRUM SECTION 2. Removing the Ink Cartridge Set Switch Cover and Ink Cartridge Set Switch PCB Removing the ink cartridge set switch cover (1) Remove the mounting screws (IB lock, M4 x 6: 2 pcs) [C] on the ink cartridge set switch PCB cover [A], and then remove the cover.

  • Page 149: Removing The Ink Cartridge Set Switch Pcb Mounting Bracket

    PRINT DRUM SECTION 3. Removing the Ink Cartridge Set Switch PCB Mounting Bracket (1) Pull out the print drum, pull out the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover •...

  • Page 150: Removing The Swing Base Ass'y

    PRINT DRUM SECTION 4. Removing the Swing Base Ass’y (1) Pull out the print drum, pull out the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover (2) Remove the mounting screws (IB lock, M4 x 6: 2 pcs) [C] on the swing base ass’y.

  • Page 151: Removing The Ink Cartridge Guide Bottom Ass'y

    PRINT DRUM SECTION 5. Removing the Ink Cartridge Guide Bottom Ass’y (1) Pull out the print drum, pull out the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover •...

  • Page 152: Removing The Ink Pump Unit And Inking Motor

    PRINT DRUM SECTION 6. Removing the Ink Pump Unit and Inking Motor Removing the ink pump unit (1) Pull out the print drum, pull out the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y •...

  • Page 153: Removing The Print Drum Set Sensor

    PRINT DRUM SECTION 7. Removing the Print Drum Set Sensor (1) Pull out the print drum, pull out the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover •...

  • Page 154: Removing The Screen

    PRINT DRUM SECTION 8. Removing the Screen [Suggestion prior to starting work] • Attaching the print drum stand [B] (Part No. 015-26836-002) to the rear of the print drum side frame ass’y [A] makes the work easier by keeping the print drum level. (1) Make a confidential master, and pull out the print drum.

  • Page 155: Removing The Print Drum Body

    PRINT DRUM SECTION 9. Removing the Print Drum Body (1) Make a confidential master, pull out the print drum, and remove the following component. • Screen (2) Remove the mounting screws (special screws: 2 pcs) [B] and remove the clamp plate base [A]. (3) Peel off the tape [D] on the print drum body [C] alignment section.
  • Page 156 PRINT DRUM SECTION [Precautions on Reassembly: 1] • Arrow marks ( ) are engraved on both sides of the print drum body, and F is engraved at the front. Likewise, arrow marks ( ) are engraved on both the right and left print drum supports. Face the side with the “F”...

  • Page 157: Removing The Ink Sensor Pcb

    PRINT DRUM SECTION 10. Removing the Ink Sensor PCB (1) Pull out the print drum, and remove the following components. • Screen • Print drum body (2) Unplug the connector on the ink sensor PCB [B]. (3) Remove the ink sensor cover [A] mounting screws (double-washer, M3 x 8: 2 pcs), and detach the ink sensor cover [A].

  • Page 158: Removing The Squeegee Roller

    PRINT DRUM SECTION 11. Removing the Squeegee Roller (1) Pull out the print drum to remove the ink bottle, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover • Ink cartridge set switch cover •...
  • Page 159 PRINT DRUM SECTION (5) With the print drum at position-A, remove the mounting screws (double-washer, M4 x 8: 2 pcs each) on the squeegee frames [L] via the holes in the print drum supports (F) and (R). 0847 0850 0849 L: Squeegee frames 0848 0851...
  • Page 160 PRINT DRUM SECTION (9) Remove the E-rings on both ends of the squeegee roller [I], remove the gears [J], remove the bearings [K], and then remove the squeegee roller [I] from the squeegee frame [L]. (The doctor roller [M] and driven shaft [N] will also come loose when removing the squeegee roller [I], and are disassembled as shown below.) I: Squeegee roller J: Gear...

  • Page 161: Removing The Print Drum Supports (R) And (F)

    PRINT DRUM SECTION 12. Removing the Print Drum Supports (R) and (F) (1) Pull out the print drum, remove the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover •...
  • Page 162 PRINT DRUM SECTION (7) Loosen the allen bolt [H] on the drum-shaft clamper [G], and pull out the drum-shaft clamper [G] from the ink distributor. (8) Remove the mounting screws (double-washer, M4 x 12: 4 pcs) [J] on the print drum main gear [I], and slide out the Print drum main gear [I] from the ink distributor.
  • Page 163 PRINT DRUM SECTION [Precautions on Reassembly: 1] • Use the tool (print drum JIG 7) when tightening the drum shaft clamper mounting screws. Print drum JIG 7 015-26128-008 • Parts numbers are accurate as of April 2000. They are subject to change without prior notice. 0864 •...

  • Page 164: Adjustment

    PRINT DRUM SECTION Adjustment 1. Filter Cleaning (1) Pull out the print drum, remove the ink cartridge, and remove the following components. • Ink cartridge guide ass’y • Drum front upper cover • Ink cartridge set switch cover • Ink cartridge set switch PCB mounting bracket (2) Remove the mounting screws (IB lock, M4 x 6: 2 pcs and tapping, M3 x 10: 2 pcs) on the ink intake nozzle [A], and remove the nozzle.

  • Page 165: Squeegee Gap Adjustment

    PRINT DRUM SECTION 2. Squeegee Gap Adjustment Adjustment (1) Pull out the print drum, and remove the following components. • Screen • Print drum body (2) Clean out the ink inside the squeegee unit. (3) Using a feeler gauge, check that the gap between the squeegee roller and doctor roller is in specified setting (0.08 mm ±...

  • Page 166: Ink Blocking Plate Position Adjustment

    PRINT DRUM SECTION 3. Ink Blocking Plate Position Adjustment Adjustment (Front) (1) Pull out the print drum, remove the ink cartridge, and remove the following components. • Print drum front cover • Ink cartridge guide ass’y • Drum front upper cover •...

  • Page 167: Squeegee Pressure Balance Adjustment

    PRINT DRUM SECTION 4. Squeegee Pressure Balance Adjustment Checks and adjustment (1) Create a master with Test Chart No. 15 and print to check the left and right print density balance. (2) If the left and right print density is not balanced, adjust as shown below. [Front] (3) Pull out the print drum, remove the ink cartridge, and remove the following components.
  • Page 168 PRINT DRUM SECTION 0874 • Using your finger, press the print drum from underneath, and adjust the gap to approx. 0.3 mm. • Set the same amount of gap at the front and rear. [Checking after Adjustment] • Run an actual print after the adjustment to check the left and right print density balance. If the left and right print density balance is incorrect, the squeegee pressure must be readjusted.
  • Page 169 PRINT DRUM SECTION [Memo] [ 8 - 30 ]...

  • Page 170: Chapter 9: Master Clamp Section

    CHAPTER : MASTER CLAMP SECTION Contents Mechanism ........................... 9-2 1. Clamp Unit Home Positioning Mechanism ................. 9-2 2. Clamp Plate Master Release Mechanism ................9-3 3. Clamp Plate Master Clamp Mechanism ................9-4 Disassembly ..........................9-5 1. Removing the Clamp Unit ....................9-5 2.

  • Page 171: Mechanism

    MASTER CLAMP SECTION Mechanism 1. Clamp Unit Home Positioning Mechanism When the Start key is pressed to create confidential or normal masters, the clamp open arm [A] and master release arm [B] are checked to ensure that they have returned to the home position (with the light paths to both clamp sensors A [F] and B [G] open).

  • Page 172: Clamp Plate Master Release Mechanism

    MASTER CLAMP SECTION 2. Clamp Plate Master Release Mechanism When the Start key is pressed to create confidential or normal masters, the print drum makes one turn and checks for the presence of master on the print drum. Once the presence of a master on the drum has been checked, the drum returns to position A, and the clamp plate master release operation starts.

  • Page 173: Clamp Plate Master Clamp Mechanism

    MASTER CLAMP SECTION 3. Clamp Plate Master Clamp Mechanism As the used master is removed from the print drum, the print drum makes one revolution and returns to position A, and the clamp plate master clamp operation starts. The clamp motor activates and rotates the clamp cam assembly [A]. This pushes down the clamp open arm [E] and opens the clamp plate [B].

  • Page 174: Disassembly

    MASTER CLAMP SECTION Disassembly 1. Removing the Clamp Unit (1) Remove the rear cover. (2) <RN25 Series> Remove the PCB cover, and open the main PCB bracket. <RN20/21 Series> Remove the main PCB. (3) Unplug the clamp motor connector [A] and sensor connector [B]. (4) Remove the mounting screws (double-washer, M4 x 8: 3 pcs) [C] on the clamp unit, and remove the clamp unit.

  • Page 175: Removing The Clamp Motor, Clamp Sensor A, Clamp Sensor B

    MASTER CLAMP SECTION 2. Removing the Clamp Motor, Clamp Sensor A, Clamp Sensor B Removing the Clamp Motor (1) Remove the clamp unit. (2) Remove the E-ring and remove the worm gear [A]. (3) Unplug the connector [C], remove the mounting screws, and remove the clamp motor [B]. Removal of Clamp Sensor A (1) Remove the clamp unit.

  • Page 176: Chapter 10: Master Removal Section

    CHAPTER : MASTER REMOVAL SECTION Contents Mechanism ..........................10-2 1. Master Removal Mechanism .................... 10-2 2. Master on the Drum (before Master Removal) Check Mechanism ........10-3 3. Removed Master Vertical Transport Mechanism .............. 10-4 4. Disposed Master Compression Mechanism ..............10-5 5.

  • Page 177: Mechanism

    MASTER REMOVAL SECTION Mechanism 1. Master Removal Mechanism Masters on the print drum are removed as follows. (1) At the start of master removal, the master sensor [A] checks whether the master to be removed on the print drum actually exists. (2) The clamp plate master removal operation is performed with the print drum at position A to release the leading edge of the master from the clamp plate.

  • Page 178: Master On The Drum (Before Master Removal) Check Mechanism

    MASTER REMOVAL SECTION 2. Master on the Drum (before Master Removal) Check Mechanism When creating confidential or normal masters, the print drum moves to position A, and with the print drum at the 75° position, the master sensor [A] checks whether or not there is a master [B] on the drum. (The check operation is not performed if information that a master is present has already been stored in the machine’s memory.) The drum rotation angle for the check can be adjusted using Test Mode No.

  • Page 179: Removed Master Vertical Transport Mechanism

    MASTER REMOVAL SECTION 3. Removed Master Vertical Transport Mechanism When the clamp unit is operated to release the leading edge of the master from the clamp plate, the master removal motor [A] activates, rotating the vertical transport rollers [B, C, D, E, F]. The main motor also rotates the print drum at the same time.

  • Page 180: Disposed Master Compression Mechanism

    MASTER REMOVAL SECTION 4. Disposed Master Compression Mechanism 1) Initializing • If the light path on the master compression sensor [B] is open when the power is switched ON or when everything is reset, the master compression motor operates in the compression direction, and when the light path to the master compression sensor is blocked, it operates in reverse until the light path is open again.
  • Page 181 MASTER REMOVAL SECTION 4) Disposed master full detection The removed master full detection is performed using the following two mechanisms, and a master full indication is displayed by either. (1) The number of masters removed after resetting following the previous master full indication is counted, and the master disposal box is determined as full when the count reaches the preset value.
  • Page 182 MASTER REMOVAL SECTION [ When the master disposal box becomes full ] As the master disposal box becomes full, the master compression plate stops rotating before the removed master full sensor is blocked. 1013 The master full indication appears when the master compression sensor receives light without the master disposal box full sensor being blocked.

  • Page 183: Disposal Box Safety Switch

    MASTER REMOVAL SECTION 5. Disposal Box Safety Switch The master disposal box safety switch checks whether the master disposal box and master disposal gate housing are properly positioned. If the gate housing is locked and correctly set, the switch operating plate B rotates and moves closer to the master disposal box safety switch.

  • Page 184: Disassembly

    MASTER REMOVAL SECTION Disassembly 1. Removing the Master Removal Hook (1) Pull out the print drum, switch off the power, and remove the front cover. (2) Remove the spring [A] from the master removal hook bracket. (3) Remove the bearing fixing plate [B]. (RS tight, M4 x 8: 1 pc) (4) Remove the master removal hook [C] together with the master removal hook bracket.

  • Page 185: Removing The Master Removal Unit

    MASTER REMOVAL SECTION 2. Removing the Master Removal Unit (1) Open the scanner table, and loosen the lock plate [A] to free. (2) Open the scanner table further, and set the stopper plate [B] in the servicing position. (3) Remove the front frame cover and rear cover. (4) Remove the housing cover [C] (RS tight, M3 x 6: 2 pcs).
  • Page 186 MASTER REMOVAL SECTION (5) Remove the magnetic catch [D], together with the mounting bracket (RS tight, M3 x 6: 1 pc). (6) Remove the detachment prevention plate [E] (RS tight, M3 x 6: 1 pc). (7) Remove the harness connector [F] and reusable band [G] from the master jam sensor. 1022 1023 D: Magnet catch...
  • Page 187 MASTER REMOVAL SECTION (8) Unlock the release lever. With the master disposal gate housing fully open, slide the master disposal gate housing toward the front, and then pull it out horizontally in the direction of paper ejection. * The ends of the master disposal gate housing are engaged with the compression shaft on both sides. As the sections engaged with the shaft are open on the front, as shown in the diagram, the master disposal gate housing can be removed by sliding it toward the front while holding the open sections wide open.
  • Page 188 MASTER REMOVAL SECTION (9) Disconnect the two connectors [K] from the front and one connector [L] from the rear. (10) Remove the screws (RS tight, M4 x 8: 4 pcs) indicated by the arrows in the diagram, and dismount the master removal unit [M]. 1027 1028 1029...

  • Page 189: Removing The Master Disposal Gate Housing

    MASTER REMOVAL SECTION 3. Removing the Master Disposal Gate Housing (1) Remove the E-rings and bearings on both sides of the pulley shaft [B], and remove the pulley shaft. (2) Remove the E-rings, bearings, and gears on both sides of the master removal roller (top) [A], and remove the roller.

  • Page 190: Removing The Master Removal Roller (Bottom)

    MASTER REMOVAL SECTION 4. Removing the Master Removal Roller (Bottom) (1) Remove the belt retainer [A] (RS tight, M3 x 6: 2 pcs). (2) Loosen the two screws on the H tensioner ass’y [B], and remove the timing belt [C]. (3) Remove the E-rings, bearings, gears, and pulleys from both sides of the master removal roller (bottom) [D], and detach the master removal roller (bottom).
  • Page 191 MASTER REMOVAL SECTION (4) Remove the E-ring, slide the shaft in the direction indicated by the arrow, align the shaft groove [E] with the notch [F] in the sheet metal, and then remove the master removal pulley bottom ass’y [G] (the master removal pulley bottom ass’y is symmetrical).

  • Page 192: Removing The Master Compression Plate

    MASTER REMOVAL SECTION 5. Removing the Master Compression Plate (1) Remove the E-rings and bearings from both sides of the compression shaft [A]. 1040 1041 1042 A: Compression shaft [ 10 - 17 ]...
  • Page 193 MASTER REMOVAL SECTION (2) Rotate the compression shaft to move the master compression plate [B] to the master compressing position. * Lifting up the compression gear [C] together with the shaft, to disengage the gear, allowing the shaft to be rotated. (3) Remove the E-rings from both sides of the piston shaft [D], slide the shaft, and then remove the piston-shaft links [E] from both sides.
  • Page 194 MASTER REMOVAL SECTION (5) Remove the mounting screw (IT, M3 x 6: 1 pc) and detach the master compression sensor plate [F]. (6) Remove the E-ring, and remove the compression gear [C]. (7) Remove the master compression plate sheet (parts for the prevention of master entanglement) [G] from the master compression plate holder [H] (RS tight, M3 x 6: 2 pcs).

  • Page 195: Removing The Motors

    MASTER REMOVAL SECTION 6. Removing the Motors (1) Remove the master compression plate. (2) Remove the master removal cover [A] (RS tight, M3 x 6: 2pcs). (3) Remove the master removal motor ass’y [B] (RS tight, M3 x 6: 2 pcs). (4) Remove the compression motor ass’y [C] (RS tight, M3 x 6: 2 pcs).

  • Page 196: Fb Original Scanning Section (New Scanner

    CHAPTER : FB ORIGINAL SCANNING SECTION (NEW SCANNER) Contents Mechanism ..........................11-3 1. Scanner Table Setting System ..................11-3 2. Original Scanning Mechanism ..................11-4 3. Flatbed Initialization Movement ..................11-6 4. Stage-Glass Original Detection Mechanism ..............11-7 5. Flatbed Automatic Base Control ..................11-7 6.
  • Page 197 FB ORIGINAL SCANNING SECTION [Memo] [ 11 - 2 ]...

  • Page 198: Mechanism

    FB ORIGINAL SCANNING SECTION Mechanism 1. Scanner Table Setting System The flatbed set switch [B] checks whether the scanner table [A] is closed. This switch also acts as a safety switch, which cuts the power supply to the main motor and clamp motor, and thermal power to the TPH if the scanner table is open.

  • Page 199: Original Scanning Mechanism

    FB ORIGINAL SCANNING SECTION 2. Original Scanning Mechanism The FB read pulse motor [A] drives the front and rear wire spool pulleys [D] via the 2-stage reduction pulleys linked by the timing belts [B], [C]. The front and rear wire spool pulleys are configured symmetrically.
  • Page 200 FB ORIGINAL SCANNING SECTION Drive-system diagram 1103 Optical-system diagram 1104 [ 11 - 5 ]...

  • Page 201: Flatbed Initialization Movement

    FB ORIGINAL SCANNING SECTION 3. Flatbed Initialization Movement Initialization is performed in the following situations to bring the flatbed unit to standby mode. • When power is switched on • When everything has been reset Initialization operation The FB/AF HP sensor [A] is checked; if it is ON (light blocked), the flatbed read pulse motor [B] rotates in the feed direction until the sensor turns OFF (receives light), and moves the lamp carriage [C] to the right in the photograph.

  • Page 202: Stage-Glass Original Detection Mechanism

    FB ORIGINAL SCANNING SECTION 4. Stage-Glass Original Detection Mechanism The flatbed original detection sensor checks whether an original has been placed on the stage glass. As soon as the stage cover is closed halfway, blocking the light path to the stage-cover sensor, the flatbed original detection sensor checks whether there is an original on the stage glass [A].

  • Page 203: Fb Original Scanning Movement (Book Mode Off)

    FB ORIGINAL SCANNING SECTION 6. FB Original Scanning Movement (Book Mode OFF) * In the case of the RN25 Series, this operation is conducted with the Book mode OFF. When the Start key is pressed, the FB read pulse motor activates, and the lamp carriage starts to move in the feed direction.

  • Page 204: Disassembly

    FB ORIGINAL SCANNING SECTION Disassembly 1. Removing the Scanner Unit (1) Start Test Mode No. 154 (Scanner Lock Action), open the scanner table, secure the mirror carriage using the scanner-unit securing screws, and then close the scanner table. (2) Switch off the power, and remove the following covers: •...

  • Page 205: Removing The Stage Glass

    FB ORIGINAL SCANNING SECTION 2. Removing the Stage Glass (1) Switch off the power, and remove the following covers: • Stage cover • Scanner-unit cover, left • Scanner-unit cover, rear • Scanner-unit cover, front • Scanner-unit cover, right (2) Remove the two stepped screws, and remove the original stopper [A]. (3) Remove the flat spring F [B] and flat spring R [C] (IT, M3 x 6: 2 pcs each).

  • Page 206: Removing The Flatbed Original Detection Sensor

    FB ORIGINAL SCANNING SECTION 3. Removing the Flatbed Original Detection Sensor (1) Switch off the power, and remove the stage glass. (2) Remove the mounting screws (bind, M3 x 6: 3 pcs), disconnect the connector [A], and remove the flatbed original detection sensor together with the sensor cover [B]. (3) Disengage the three claws of the flatbed original detection sensor [C] from the sensor cover, and remove the flatbed original detection sensor [D].

  • Page 207: Removing The Lamp

    FB ORIGINAL SCANNING SECTION 4. Removing the Lamp (1) Start Test Mode No. 158 (scanner lamp replacement position set), and switch off the power. (2) Remove the stage glass. (3) Remove the mounting screws (double-washer, M3 x 6: 2 pcs), and detach the inverter cover [A]. (4) Remove the lamp harness [C] from the two cord clamps [B], release the lock, and disconnect the connector [D].

  • Page 208: Removing The Ccd Unit

    FB ORIGINAL SCANNING SECTION 5. Removing the CCD Unit (1) Switch off the power, and remove the stage glass. (2) Remove the mounting screws (bind, M3 x 6: 3 pcs), and dismount the CCD cover [A]. (3) While holding the CCD PCB [B], remove the CCD cable [C]. (4) Remove the mounting screws (double-washer, M3 x 6: 3 pcs), and remove the CCD unit [D].

  • Page 209: Removing The Fb/Af Hp Sensor

    FB ORIGINAL SCANNING SECTION 6. Removing the FB/AF HP Sensor (1) Switch off the power, and remove the left scanner-unit cover. (2) Remove the mounting screw (double-washer, M3 x 6: 1 pc), disconnect the connector [A], and remove the FB/AF HP sensor [C] together with the sensor bracket [B]. (3) Disengage the claws of the FB/HP sensor from the sensor bracket, and remove the sensor.

  • Page 210: Removing The Flatbed Read Pulse Motor

    FB ORIGINAL SCANNING SECTION 7. Removing the Flatbed Read Pulse Motor (1) Switch off the power, and remove the stage glass. (2) Remove the mounting screws (double-washer, M3 x 6: 4 pcs), remove the timing belt [A] located inside the scanner unit, and remove the flatbed read pulse motor [C] together with the bracket [B]. (3) Remove the mounting screws (double-washer, M3 x 6: 2 pcs), and detach the flatbed read pulse motor from the bracket.

  • Page 211: Adjustment

    FB ORIGINAL SCANNING SECTION Adjustment 1. FB Read Pulse Motor Speed Adjustment Checks and adjustment (1) Set B4-size paper in the paper-feeding tray, place Test Chart No. 15 on the stage glass, and create an original-size master. (2) Lay the print on top of the test chart original to check that the image elongation and shrinkage of the print is within ±1.4% at the 310-mm line of the test chart original.

  • Page 212: Fb Original Scanning Section (Previous Scanner

    CHAPTER : FB ORIGINAL SCANNING SECTION (Previous Scanner) Contents Mechanism ..........................12-3 1. Scanner Table Setting System ..................12-3 2-1. Scanning Mechanism (RN25 Series) ................12-4 2-2. Original Scanning Mechanism (RN20/21 Series) ............12-6 3. Flatbed Initialization ......................12-8 4. Stage-Glass Original Detection Mechanism ..............12-9 5.
  • Page 213 FB ORIGINAL SCANNING SECTION [Memo] [ 12 - 2 ]...

  • Page 214: Mechanism

    FB ORIGINAL SCANNING SECTION Mechanism 1. Scanner Table Setting System The flatbed set switch [B] checks whether or not the scanner table [A] has been set correctly. The switch also has a safety-switch function that cuts off the power supply to the main motor and clamp motor, as well as the thermal power, when the scanner table is open.

  • Page 215: Scanning Mechanism (Rn25 Series)

    FB ORIGINAL SCANNING SECTION 2-1. Scanning Mechanism (RN25 Series) The FB read pulse motor [A] drives the front and rear wire-spool pulleys [B] via the two-stage reduction pulleys linked by the timing belt. The front and rear wire-spool pulleys are configured symmetrically. One end of the wire [C] is secured to the frame via the spring [Q], and is attached to the lamp carriage [F] via sliding pulley 2 [E] mounted on the mirror carriage [D].
  • Page 216 FB ORIGINAL SCANNING SECTION Drive-system diagram 1204 Optical-system diagram 1205 [ 12 - 5 ]...

  • Page 217: Original Scanning Mechanism (Rn20/21 Series)

    FB ORIGINAL SCANNING SECTION 2-2. Original Scanning Mechanism (RN20/21 Series) The FB read pulse motor [J] drives the front and rear wire spool pulleys [G] via the 2-stage reduction pulleys linked by the timing belts [H] and [I]. The front and rear wire spool pulleys are configured symmetrically.
  • Page 218 FB ORIGINAL SCANNING SECTION Drive-system diagram 1207 Optical-system diagram 1208 [ 12 - 7 ]...

  • Page 219: Flatbed Initialization

    FB ORIGINAL SCANNING SECTION 3. Flatbed Initialization Initialization is performed in the following situations to place the flatbed in standby mode: • When the power is switched on • When “All reset” is performed Initialization operation The FB/AF HP sensor [A] is checked, and if it is OFF (open), the FB read pulse motor is activated in the return direction until the light path is blocked, to move the lamp carriage [B] to the left in the photograph.

  • Page 220: Stage-Glass Original Detection Mechanism

    FB ORIGINAL SCANNING SECTION 4. Stage-Glass Original Detection Mechanism The flatbed original detection sensor checks whether an original has been placed on the stage glass. As soon as the stage cover is closed halfway, blocking the light path to the stage-cover sensor, the flatbed original detection sensor checks whether there is an original on the stage glass [A].

  • Page 221: Fb Original Scanning Movement

    FB ORIGINAL SCANNING SECTION 5. FB Original Scanning Movement * In the case of the RN25 Series, this operation is conducted with the Book mode OFF. When the Start key is pressed, the FB read pulse motor activates, and the lamp carriage starts to move in the feed direction.
  • Page 222 FB ORIGINAL SCANNING SECTION [Memo] [ 12 - 11 ]...

  • Page 223: Disassembly

    FB ORIGINAL SCANNING SECTION Disassembly 1. Removing the Scanner Unit (1) Start the Test Mode No. 154 (Scanner Lock Action) to move the carriage to the lock position, open the scanner table, secure the mirror carriage with the screws used for equipment transport, and then close the scanner table.

  • Page 224: Removing The Stage Glass

    FB ORIGINAL SCANNING SECTION 2. Removing the Stage Glass (1) Switch off the power, and remove the left-hand scanner cover. (2) Remove the two special stepped screws [D], and remove the original stopper [B] by moving it slightly to the left (paper-feed side) and then lifting. (3) Lift up the left-hand side (paper feed side) of the Stage glass [C] slightly, and slide it out towards the paper feed side.

  • Page 225: Removing The Flatbed Original Detection Sensor

    FB ORIGINAL SCANNING SECTION 3. Removing the Flatbed Original Detection Sensor (1) Switch off the power. (2) Remove the stage glass. < RN25 Series > (3) Unplug the connector and remove the flatbed original detection sensor [A] with one screw (RS tight, M3 x 6).

  • Page 226: Removing The Lamp (Rn25 Series)

    FB ORIGINAL SCANNING SECTION 4-1. Removing the Lamp (RN25 Series) (1) Switch off the power. (2) Remove the stage glass. (3) Remove the screws (RS tight, M3 x 6: 4 pcs), and detach the top L stay [A]. (4) Bring the lamp carriage [C] to the large cutaway section on the scanner frame [B] from which the top L stay [A] was removed.

  • Page 227: Removing The Lamp (Rn20/21 Series)

    FB ORIGINAL SCANNING SECTION 4-2. Removing the Lamp (RN20/21 Series) (1) Switch off the power, and remove the stage glass. (2) Remove the stage glass holder [A] by removing two special screws. (3) Push the lamp carriage [B] by hand (taking care not to touch optical components) and move it to the cutaway [C] in the scanner unit frame.
  • Page 228 FB ORIGINAL SCANNING SECTION 1223 Push the Lamp-bracket back and then pull it up. 1224 Lead wire 1225 1226 1227 1228 Engage [ 12 - 17 ]...

  • Page 229: Removing The Lens Ass'y (Rn25 Series)

    FB ORIGINAL SCANNING SECTION 5-1. Removing the Lens Ass’y (RN25 Series) (1) Switch off the power. (2) Remove the stage glass. (3) Remove the mounting screw (bind, M3 x 6: 5 pcs), and detach the lens cover [A]. (4) Remove the four screws (double-washer, M3 x 8), and then remove the lens ass’y [B]. * Never loosen any screws other than those indicated by the arrows in the photograph.

  • Page 230: Removing The Lens Ass'y (Rn20/21 Series)

    FB ORIGINAL SCANNING SECTION 5-2. Removing the Lens Ass’y (RN20/21 Series) (1) Switch off the power. (2) Remove the stage glass. (3) Remove the lens cover [A] by unscrewing the mounting screws (double-washer, M3 x 6: 3 pcs). (4) Remove the three cap screws (M3 x 6 + PW), detach the ground wire and connector, and then remove the lens ass’y [B].

  • Page 231: Adjustment

    FB ORIGINAL SCANNING SECTION Adjustment 1. FB Image Elongation & Shrinkage Adjustment The adjustment method is the same as that for the new scanner. Refer to the adjustment instructions in Chapter 11 “FB Original Scanning Section (New Scanner).” 2. FB Scan Start Position Adjustment The adjustment method is the same as that for the new scanner.

  • Page 232: Chapter 13: Af Scanning Section (Rn25 Series)

    CHAPTER : AF SCANNING SECTION (RN25 Series) Contents Mechanism .......................... 13-2 AF Original Set Mechanism ..................13-2 AF Set Detection Mechanism .................. 13-4 AF Original Scanning Mechanism (with Auto Base Control) ........13-4 AF Original Scanning Mechanism ................13-5 Removal and Assembly ...................... 13-7 Removing the Original Pickup Roller Frame ............

  • Page 233: Mechanism

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) Mechanism 1. AF Original Set Mechanism When an original is set along the original guide fence [K] and pushed up against the original stopper gate [A], the AF original detection sensor [B] turns ON (receives light) and the Master/Print indication on the panel changes to “Ready to make master.”...
  • Page 234 CHAPTER 13. AF SCANNING SECTION (RN25 Series) Original feed 1302 1303 A: Original stopper gate H: Read roller 1 B: AF Original detection sensor I: White roller C: Pickup roller J: Original ejection roller D: Registration roller K: Original guide fence E: Original stripper roller L: Read roller 2 F: Original stripper pad...

  • Page 235: Af Set Detection Mechanism

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) AF Set Detection Mechanism Whether the AF is closed over the stage glass or not is checked by the AF cover set sensor [E]. The AF cover set sensor [E] is attached on the AF unit. E: AF cover set sensor 1340 3.

  • Page 236: Af Original Scanning Mechanism (With Auto Base Control)

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) 4. AF Original Scanning Mechanism When the Start key is pressed after the AF original set operation is complete, the AF read pulse motor [A] rotates in the forward direction, turning the registration roller [B], the two read rollers [C] [H], the white roller [D], and the paper ejection roller [E] in the feed direction.
  • Page 237 CHAPTER 13. AF SCANNING SECTION (RN25 Series) 1305 A: AF read pulse motor B: Registration roller C: Read roller 1 D: White roller E: Paper ejection roller F: AF original IN sensor G: AF original ejection sensor H: Read roller 2 [ 13 - 6 ]...

  • Page 238: Removal And Assembly

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) Removal and Assembly 1. Removing the Original Pickup Asembly (1) Remove the top cover [A] by loosening the screws (M4 x 6: 3 pcs) on the front of the top cover and removing the screws (4 x 10: 2 pcs) from the rear. (2) Disconnect the two connectors and the reusable band [C], remove the screws (M3 x 4: 2 pcs), and detach the sensor-bracket assembly [B].
  • Page 239 CHAPTER 13. AF SCANNING SECTION (RN25 Series) (3) Remove the resin clips [D] from both sides, pull the bearing metals [E] toward the inside, and remove the original pickup assembly [F] by passing the drive gear on the rear of the assembly through the hole on the side panel.

  • Page 240: Removing The Original Pickup Roller

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) 2. Removing the Original Pickup Roller (1) Remove the original pickup assembly (refer to the removal instructions in this Chapter). (2) Remove the resin clip [A], open the end of the K holder [B], and remove the pickup roller [C]. (Note that the K holder C [D] and parallel pin [E] may fall during disassembly.) 1312 1313...

  • Page 241: Removing The Original Stripper Roller

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) 3. Removing the Original Stripper Roller (1) Remove the original pickup assembly (refer to the removal instructions in this Chapter). (2) Remove the K holder C, parallel pin, and pickup roller (refer to the removal instructions in this Chapter).

  • Page 242: Removing The Original Stripper Pad Assembly

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) Removing the Original Stripper Pad Assembly (1) Remove the original pickup assembly (refer to the removal instructions in this Chapter). (2) Detach original stopper bracket [A] by removing one screw (M3 x 4), and remove the original stopper [B].

  • Page 243: Removing The Original In Sensor

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) 5. Removing the AF Original IN Sensor (1) Remove the top cover by loosening the screws (M4 x 6: 3 pcs) on the front of the top cover and removing the screws (M4 x 10: 2 pcs) from the rear. (2) Remove the screw (M3 x 8: 1 pc), disconnect the connector, and remove the AF original IN sensor [A].

  • Page 244: Removing The Af Read Pulse Motor

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) 6. Removing the AF Read Pulse Motor (1) Remove the top cover by loosening the screws (M4 x 6: 3 pcs) on the front of the top cover and removing the screws (M4 x 10: 2 pcs) from the rear. (2) Remove the screw (M4 x 6: 1 pc), and move the harness-bracket assembly [A] to the side.

  • Page 245: Removing Other Rollers

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) 7. Removing Other Rollers (1) Detach the AF unit from the machine. (2) Remove the top cover by loosening the screws (M4 x 6: 3 pcs) on the front of the top cover and removing the screws (M4 x 10: 2 pcs) from the rear.
  • Page 246 CHAPTER 13. AF SCANNING SECTION (RN25 Series) (5) Disconnect the AF cover set switch connector [B] and AF read pulse motor connector [C], and detach the ground wire [D] by removing screw (M3 x 6: 1 pc). (6) Remove the reusable band [E], detach the harness from the three harness clamps, and move the harness to the side.
  • Page 247 CHAPTER 13. AF SCANNING SECTION (RN25 Series) 1324 Front Rear < Layout of the rollers > A: Registration roller B: Read roller No. 1 C: White roller D: Read roller No. 2 E: Original ejection roller [ 13 - 16 ]...

  • Page 248: Removing The Registration Roller

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) Removing the registration roller (13) Remove the timing pulley [A] from the rear side of the roller. Also remove the parallel pin [B] at the same time. (14) Remove the E-ring, and detach the bearing metal. (15) Remove the resin clip [C] from the front side of the roller, and detach the bearing metal.
  • Page 249 CHAPTER 13. AF SCANNING SECTION (RN25 Series) Removing the read roller No. 1 * Before removing the read roller No. 1, detach the registration roller. (13) Remove the resin clip [A] from the rear side of the roller, and detach the timing pulley [B]. Also remove the parallel pin [C] at the same time.
  • Page 250 CHAPTER 13. AF SCANNING SECTION (RN25 Series) Removing the read roller No. 2 (13) Remove the resin clip [A] from the rear side of the roller, and detach the timing pulley [B]. Also remove the parallel pin [C] at the same time. (14) Remove the E-ring, and detach the bearing metal.
  • Page 251 CHAPTER 13. AF SCANNING SECTION (RN25 Series) Removing the original ejection roller (13) Remove the resin clip [A] from the rear side of the roller, and detach the timing pulley [B]. Also remove the parallel pin [C] at the same time. (14) Remove the E-ring, and detach the bearing metal.

  • Page 252: Adjustment

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) Adjustment AF Read Pulse-Motor Speed Adjustment (Elongation & Shrinkage) Checks and procedure (1) Place A3 size printing paper on the paper feed tray. Make 1 to Test chart No.11 1 size master using test chart No.11 on the AF unit, and make prints.

  • Page 253: Af Original In Sensor Sensitivity Adjustment

    CHAPTER 13. AF SCANNING SECTION (RN25 Series) AF Original IN Sensor Sensitivity Adjustment Adjustment (1) Without an original, execute Test Mode No. 752 [AF Original IN Sensor Sensitivity Adjustment]. This will automatically adjust the sensitivity of the sensor. * This adjustment must be made after replacing the sensor. [ 13 - 22 ]...

  • Page 254: Chapter 14: Af Scanning Section (Rn20/21 Series)

    CHAPTER AF SCANNING SECTION (RN20/21 Series) Contents Mechanism ............................14-2 1. AF Original Set Mechanism ....................14-2 2. AF Original Scanning Mechanism (with Automatic Base Control) ........14-4 3. AF Original Scanning Mechanism ..................14-5 Disassembly ........................... 14-6 1. Removing the Original Scraper Ass’y ................14-6 2.

  • Page 255: Mechanism

    AF SCANNING SECTION (RN20/21 Series) Mechanism 1. AF Original Set Mechanism When the original is set along the original guide fence and pushed up against the original stopper gate [C], the AF original detection sensor [A] is activated (light path open) and the Master/Print indicator on the panel switches to “Master.”...
  • Page 256 AF SCANNING SECTION (RN20/21 Series) 1402 A: AF original detection sensor I: Original read roller B: Pickup roller J: Original ejection roller C: Original stopper gate K: Original pickup pad D: Original stripper roller L: Original guide fence E: Original stripper pad M: Timing belt F: AF registration sensor N: Registration roller gear...

  • Page 257: Af Original Scanning Mechanism (With Automatic Base Control)

    AF SCANNING SECTION (RN20/21 Series) 2. AF Original Scanning Mechanism (with Automatic Base Control) (This operation only occurs when the original scanning density is set to “Auto”.) Once the AF original setting operation is complete, pressing the Start key illuminates the lamp. The flatbed read pulse motor is activated immediately, moving the lamp carriage in the feed direction to the shading position.

  • Page 258: Af Original Scanning Mechanism

    AF SCANNING SECTION (RN20/21 Series) 3. AF Original Scanning Mechanism Once the AF original setting operation is complete, pressing the Start key illuminates the lamp. The flatbed read pulse motor immediately activates, moving the lamp carriage in the feed direction to the shading position.

  • Page 259: Disassembly

    AF SCANNING SECTION (RN20/21 Series) Disassembly 1. Removing the Original Scraper Ass’y (1) Switch off the power and open the AF unit. Now remove the two screws (P tight, M3 x 10), and remove the AF cover [A]. Finally, close the AF unit. (2) Remove the plastic lock rings [C] from both sides of the original scraper ass’y [B], and then remove the bearing bushes [D].

  • Page 260: Removing The Pickup Roller

    AF SCANNING SECTION (RN20/21 Series) 2. Removing the Pickup Roller (1) Switch off the power and open the AF unit. Now remove the two screws (P tight, M3 x 10), and remove the AF cover. Finally, close the AF unit. (2) Pull apart both ends of the pickup roller frame ass’y [B] holding the pickup roller [A], and remove the pickup roller [A].

  • Page 261: Removing The Original Stripper Roller

    AF SCANNING SECTION (RN20/21 Series) 3. Removing the Original Stripper Roller (1) Switch off the power and open the AF unit. Now remove the two screws (P tight, M3 x 10), and remove the AF cover. Finally, close the AF unit. (2) Remove the original scraper ass’y.

  • Page 262: Removing The Af Original Detection, Read, And Original Ejection Sensors

    AF SCANNING SECTION (RN20/21 Series) 4. Removing the AF Original Detection, Read, and Original Ejection Sensors (1) Switch off the power and open the AF unit. Now remove the two screws (P tight, M3 x 10), and remove the AF cover. Finally, close the AF unit. Removing the AF original detection sensor (2) Remove the connector, free the actuator by hand, and release the clips on the AF original detection sensor [A] to remove it.

  • Page 263: Removing The Af Original Registration Sensor

    AF SCANNING SECTION (RN20/21 Series) 5. Removing the AF Original Registration Sensor (1) Switch off the power and open the AF unit. Now remove the screw (P tight, M3 x 10), and remove the AF cover. Finally, close the AF unit. (2) Remove the connector, lift up the actuator and move it to the left end, and release the clips on the AF original registration sensor [A] to remove it.

  • Page 264: Removing The Af Read Pulse Motor

    AF SCANNING SECTION (RN20/21 Series) 6. Removing the AF Read Pulse Motor (1) Switch off the power and open the AF unit. Now remove the two screws (P tight, M3 x 10), and remove the AF cover. Finally, close the AF unit. (2) Detach connectors CN1 and CN3 on the AF-PCB [A], and remove the ground screw [C] on the AF upper guide ass’y [B] together with the other screws (double-washer, M3 x 6).
  • Page 265 AF SCANNING SECTION (RN20/21 Series) 1412 1413 A: AF-PCB B: AF upper guide ass’y C: Ground screw D: AF read pulse motor E: AF read sensor [ 14 - 12 ]...

  • Page 266: Removing The Registration Roller, Original Read Roller, And Original Ejection Roller

    AF SCANNING SECTION (RN20/21 Series) 7. Removing the Registration Roller, Original Read Roller, and Original Ejection Roller (1) Switch off the power and open the AF unit. Now remove the two screws (P tight, M3 x 10), and remove the AF cover. Finally, close the AF unit. (2) Detach connectors CN1 and CN3 on the AF-PCB, and remove the ground screw on the AF upper guide ass’y together with the screw (double-washer, M3 x 6).
  • Page 267 AF SCANNING SECTION (RN20/21 Series) Rear Front 1414 1415 A: AF upper guide ass’y B: Jam release dial C: Registration roller D: Original read roller E: Original Ejection Roller F: Idler G: Idler spring H: Timing belt I: AF guide frame (front) J: AF guide frame (rear) [ 14 - 14 ]...
  • Page 268 AF SCANNING SECTION (RN20/21 Series) Registration roller 1416 Original read roller 1417 Original ejection roller 1418 Rear Front K: Washer L: Thrust spring M: E-ring N: Bearing bush O: Clutch spring P: E-ring Q: Timing gear [ 14 - 15 ]...

  • Page 269: Adjustment

    (2) Turn variable resistor VR1 on top of the AF-PCB to adjust LED1 to maximum brightness. Checks after adjustment • Check that LED1 on top of the AF-PCB clears when the original (thin Riso paper inlet) is detected by the AF read sensor.

  • Page 270: Af Image Skew Adjustment

    AF SCANNING SECTION (RN20/21 Series) 5. AF Image Skew Adjustment Checks and adjustment (1) Set B4-size paper in the paper-feeding tray. Using the AF unit, create an original-size master with the Test Chart No. 15, and then print. (2) Lay the print on top of the original with the 310-mm lines at the side parallel, and check that the skew (X) of the leading 180-mm line is within 2 mm.
  • Page 271 AF SCANNING SECTION (RN20/21 Series) [Memo] [ 14 - 18 ]...

  • Page 272: Chapter 15: Master Making Section

    CHAPTER : MASTER MAKING SECTION Contents Mechanism ............................15-2 1. Master Making & Master Loading ..................15-2 2. Scanner Table Set Detection Mechanism ................. 15-4 3. Master Cutting Mechanism ....................15-5 4. Thermal Print Head Elevation Mechanism ............... 15-6 5. Master Positioning Mechanism ..................15-8 6.

  • Page 273: Mechanism

    MASTER MAKING SECTION Mechanism 1. Master Making & Master Loading The master making & master loading mechanism is made up of the following components. 1) Scanner Table Set Detection Mechanism The flatbed set switch [A] confirms that the original is positioned on the scanner table. The master loading unit sensor [B] confirms that the master loading unit is set.
  • Page 274 MASTER MAKING SECTION 1501 A: Flatbed set switch I: Write roller B: Master loading unit sensor J: Write pulse motor C: Master end sensor K: Master stocker D: Cutter motor L: Load pulse motor E: Cutter home position switch M: Load roller F: Thermal print head N: Master detection sensor G: Thermal pressure motor...

  • Page 275: Scanner Table Set Detection Mechanism

    MASTER MAKING SECTION 2. Scanner Table Set Detection Mechanism Scanner table and master loading set detection mechanism The flatbed set switch [A] confirms that the scanner table is closed. The flatbed set switch [A] is the interlocking switch for the main motor, and this forces the main motor, clamp motor, and TPH power to an emergency stop if the scanner table is opened while the system is operating.

  • Page 276: Master Cutting Mechanism

    MASTER MAKING SECTION 3. Master Cutting Mechanism The master is cut by the upper cutter of the cutter unit being moved up and down by the cutter motor [A]. The cutter motor rotates in a constant direction, and the cutter home position switch [B] confirms the position of the upper cutter.

  • Page 277: Thermal Print Head Elevation Mechanism

    MASTER MAKING SECTION 4. Thermal Print Head Elevation Mechanism Thermal print head elevation When the system is on standby or when winding the master onto the print drum after master making, the thermal print head is raised from the write roller. Conversely, for master making and during transport, the thermal print head is lowered and pressed onto the write roller.
  • Page 278 MASTER MAKING SECTION 1505 1506 1507 A: Thermal pressure motor H: Load roller No. 1 (top) B: Pressure release cam I: Load roller (top) C: TPH pivot plate J: Blade cushion D: Pressure detection disc K: Loading guide plate E: TPH pressure sensor F: Sliding plate G: Blade link [ 15 - 7 ]...

  • Page 279: Master Positioning Mechanism

    MASTER MAKING SECTION 5. Master Positioning Mechanism The master-positioning operation is performed to bring the master to the master-positioning sensor when the master-loading unit is opened/closed or after the master is cut during the master-making process. For master roll replacement (1) Insert the leading edge of the new master roll to the master stopper gate [A], and close the master loading unit.

  • Page 280: Master Making

    MASTER MAKING SECTION 6. Master Making The sequence of operations from master making to master mounting is as described below. (1) At the start of master making, the thermal print head is lowered to clamp the master between it and the write roller.
  • Page 281 MASTER MAKING SECTION (6) The print drum pauses at the 220° position, where the master is cut. 1515 (7) After the print drum has rotated a further 15°, the Master positioning sensor confirms that the master has been cut. Cutting has been performed correctly if the light path to the sensor is 1516 blocked (no master).

  • Page 282: Disassembly

    MASTER MAKING SECTION Disassembly 1. Removing the Write Roller (1) Switch off the power, open the scanner table, and detach the rear cover (in the case of the RN25 Series, also open the System PCB bracket). (2) Loosen the mounting bracket screws (RS tight, M4 x 8: 2 pcs) on the write pulse motor [B], and remove the belt [C].

  • Page 283: Removing The Load Roller (Bottom)

    MASTER MAKING SECTION 2. Removing the Load Roller (Bottom) (1) Switch off the power, open the scanner table, and detach the rear cover (in the case of RN25 series, also open the System PCB bracket). (2) Loosen the screw (RS tight, M4 x 8: 1 pc) on the tension assembly [B], loosen the mounting bracket screws (RS tight, M4 x 8: 2 pcs) on the load pulse motor [C], and then remove the belt.
  • Page 284 MASTER MAKING SECTION (5) Remove the master roll, and remove the master cover [F]. (Double-washer, M4 x 6: 1 pc) (6) Remove the master holders [G] on both sides. (Bind, M3 x 6: 2 pcs each) (7) Remove the master set guide [H]. (RS tight, M4 x 8: 2 pcs) F: Master cover G: Master holder H: Master set guide...

  • Page 285: Removing The Cutter Unit

    MASTER MAKING SECTION 3. Removing the Cutter Unit (1) Switch off the power, detach the rear cover, and pull out the print drum (in the case of RN25 series, also open the System PCB bracket). (2) Open the scanner table and open the master loading unit. (3) Unplug the rear connector, and remove the cutter cover [A].

  • Page 286: Removing The Load Roller

    MASTER MAKING SECTION 4. Removing the Load Roller (1) Switch off the power, detach the rear cover, and pull out the print drum (in the case of RN25 series, also open the System PCB bracket). (2) Open the scanner table and open the master loading unit. (3) Remove the cutter unit.

  • Page 287: Removing The Thermal Print Head

    MASTER MAKING SECTION 5. Removing the Thermal Print Head (1) Lift up the master loading unit, and remove the master loading unit bottom cover [A]. (Screws only need be loosened.) (2) Remove the ground wire [B] mounting screw. (RS tight, M3 x 6: 1 pc) (3) Remove the mounting screws on the TPH bracket [C].

  • Page 288: Removing The Master Loading Unit

    MASTER MAKING SECTION 6. Removing the Master Loading Unit (1) Move the scanner table unit to the servicing position [A]. (2) Remove the master loading unit upper cover [B]. (RS tight, M3 x 6: 4 pcs) (3) Remove the wire harness and ground wire [C], and place them on the master loading unit. (4) Open the master disposal gate housing [D].

  • Page 289: Removing The Thermal Pressure Motor

    MASTER MAKING SECTION 7. Removing the Thermal Pressure Motor (1) Remove the TPH unit. (2) Remove the E-rings and bearings, and then remove the load roller No. 1 (top) [A]. (3) Remove the de-electricity brush plate [B]. (RS tight, M3 x 6: 2 pcs) (4) Remove the thermal pressure motor [C] as a unit.

  • Page 290: Adjustment

    MASTER MAKING SECTION Adjustment 1. Thermal Power of Thermal Print Head The thermal power must always be set before making masters after the thermal print head has been replaced. < RN25 Series > Checks and adjustment (1) Switch off the power to the system. (2) Connect a multimeter across pin 1 (+) and pin 3 (-) of CN108 on the Power supply unit.
  • Page 291 MASTER MAKING SECTION TPH Resistanace and Voltage Table For 400 dpi For 300 dpi TPH resistance (W) Voltage (V) TPH resistance (W) Voltage (V) 1989 - 1996 14.9 1403 - 1413 15.9 1997 - 2022 15.0 1414 - 1431 16.0 2023 - 2049 15.1 1432 - 1449...

  • Page 292: Master Feeding Adjustments

    MASTER MAKING SECTION 2. Master Feeding Adjustments 1) Master cut position adjustment This adjustment sets the master cutting timing (print drum stop position for cutting). Checks and adjustment (1) Adjust if the tail end of the master mounted on the print drum is either too long or too short. (2) Run the Test Mode No.

  • Page 293: 3-2) Master Making Image Elongation & Shrinkage Adjustment (Rn20/21 Series)

    MASTER MAKING SECTION 3-2) Master making image elongation & shrinkage adjustment (RN20/21 Series) 3a = 4b The adjustment is made by setting the write pulse motor speed in master making. Checks and adjustment (1) Run the Test Mode No. 051 Test Print (Crossed stripes), and produce an actual print.

  • Page 294: Master Making Length Adjustment

    MASTER MAKING SECTION 5) Master making length adjustment This is to adjust the master making area (vertical image area length) so that there will be a 2mm white margin at the bottom of the paper when prints are made. Precaution: The master clamp range must be adjusted before making this adjustment. Checks and adjustment Master material (1) Run the Test Mode No.
  • Page 295 MASTER MAKING SECTION [ Memo ] [ 15 - 24 ]...

  • Page 296: Chapter 16: Timing Charts

    CHAPTER : TIMING CHARTS Contents Initialization Operations ......................... 16-2 1. Overall Initialization Operation ..................16-2 2. Individual Initialization Operations ..................16-3 [Thermal Print Head Initialization Operation] ............. 16-3 [Master Compression Plate Initialization Operation] ..........16-4 [Paper Ejection Wing Initialization Operation] ............16-5 [Clamp Unit Home Positioning Operation] ..............

  • Page 297: Initialization Operations

    TIMING CHARTS Initialization Operations 1. Overall Initialization Operation Returns the following items to their home positions when the power is switched on or when everything is reset. Initialization start Initialization end Scanner Thermal print head Master compression plate Paper ejection wing Vertical/horizontal printing position is not Clamp unit initialized if clamping error occurs.

  • Page 298: Individual Initialization Operations

    TIMING CHARTS 2. Individual Initialization Operations [Thermal Print Head Initialization Operation] Start 1 Start 2 TPH pressure sensor OFF: Start 2 Release Thermal pressure motor 100 ms Compress Max 2 s (Error: 207) Max 2 s (Error: 208) 1602 When ON: TPH pressure sensor: Blocked (1) The TPH pressure sensor is checked on starting, and the operation starts from Start 1 if it is ON, and from Start 2 if it is OFF.

  • Page 299: [Master Compression Plate Initialization Operation]

    TIMING CHARTS [Master Compression Plate Initialization Operation] Start 1 Start 2 Master compression sensor ON: Start 2 Compress Master compression motor Return Max 800 ms 100 ms 100 ms 100 ms To return process Max 400 ms: Start 2 Max 7 s (Error: 305) 1603 When ON: Master removal sensor: Open, Master compression sensor: Open, Disposal box full sensor: Open...

  • Page 300: [Paper Ejection Wing Initialization Operation]

    TIMING CHARTS [Paper Ejection Wing Initialization Operation] Start 1 Start 2 Wing HP sensor ON: Start 2 Paper ejection wing motor 100 ms 50 ms 50 ms Max 7 s Max 7 s (Error: 415) pulses (Error: 414) pulses 1604 When ON: Wing HP sensor: Blocked (1) The wing HP sensor is checked at startup;...

  • Page 301: [Clamp Unit Home Positioning Operation]

    TIMING CHARTS [Clamp Unit Home Positioning Operation] Start Clamp sensor A Clamp sensor B Forward Clamp motor Max 3 s (Error: 501) 320 ms 100 ms Reverse Max 13 s (Error: 502) 1605 When ON: Clamp sensor A: Blocked, Clamp sensor B: Blocked (1) On starting, the system checks that clamp sensor A and clamp sensor B are both OFF.

  • Page 302: [Pressure Initialization Operation]

    TIMING CHARTS [Pressure Initialization Operation] Start 1 Start 2 ON: Start 2 Print pressure control sensor Compress Pressure control motor Release 100 ms 100 ms Max 3200 pulses Max 3200 pulses (Error: 600) (Error: 601) 1607 When ON: Print pressure control sensor: Blocked (1) The print pressure control sensor is checked on starting, and the operation starts from Start 1 if it is OFF, and from Start 2 if it is ON.
  • Page 303 TIMING CHARTS [Memo] [ 16 - 8 ]...

  • Page 304: Printing Operations

    TIMING CHARTS Printing Operations 1. Normal Overall Printing Operation Elevator Servo operation Wing Paper ejection wing adjustment Master (Waiting until the Print drum check conditions are met) Inking, overflow detection Vertical printing position Reset Vertical adjustment (single operation) Adjustment due to speed/temperature variations Print pressure change and intensity adjustment Print start...

  • Page 305: Individual Printing Operations

    TIMING CHARTS 2. Individual Printing Operations [Print Start Operation] To printing-in- Print start progress process Print drum angle (degree) Paper detected Paper detection at press section No paper Position A sensor Paper sensor Paper receiving sensor Paper detection sensor Main motor Paper feed clutch Pressure solenoid Paper ejection motor...
  • Page 306 TIMING CHARTS (1) The paper receiving sensor is checked on starting printing, and error message [A09-417] is displayed if it is ON (paper jam from start). The paper sensor is checked on starting printing, and error message [A07-418] is displayed if it is ON (paper jam from start).
  • Page 307 Print drum angle (degree) Paper detected Paper detection at press section No paper Position A sensor Paper sensor Paper receiving sensor Paper detection sensor Main motor 30 rpm 10 rpm Paper feed clutch Pressure solenoid Paper ejection motor Suction fan Separation fan Copy count signal 150 ms...
  • Page 308 TIMING CHARTS (1) The paper detection sensor is checked at the drum angle A, and the paper feed clutch is activated if paper is present. Error message [C04-402] is displayed if no paper is present. A = a + values set in Test Modes Nos. 495 through 498 a: 65°...
  • Page 309 Print drum angle (degree) Paper detected Paper detection at press section No paper Position A sensor Paper sensor Paper receiving sensor Paper detection sensor Main motor Paper feed clutch Pressure solenoid Paper ejection motor Suction fan Separation fan Copy count signal 150 ms 1611...
  • Page 310 TIMING CHARTS (1) If the paper sensor does not detect the paper by the time the print drum has rotated to angle C, it determines that no paper has been picked up, and moves to the three-cycle no-paper pickup operation. C = 143°...

  • Page 311: Elevator Operations

    TIMING CHARTS 3. Elevator Operations [Elevator Raise Operation] Start Upper limit sensor (2) Upper/lower limit sensors both ON (Error: 400) Lower limit sensor Elevator motor overload (3) ON 50 times in succession (Error: 401) current 20 ms 20 ms 20 ms Paper detection sensor (4) ON twice in succession (Error: 402) Paper feed tray safety...

  • Page 312: [Elevator Lower Operation]

    TIMING CHARTS [Elevator Lower Operation] Start Upper limit sensor Lower limit sensor Elevator motor overload (2) ON 50 times in succession (Error: 401) current 20 ms 20 ms 20 ms Paper feed tray safety (3) ON twice in succession (Error: 403) switch 100 ms 100 ms...

  • Page 313: [Elevator Servo Operation]

    TIMING CHARTS [Elevator Servo Operation] Start Upper limit sensor (8) OFF more than 2 s in succession (Error: 408) Lower limit sensor Elevator motor overload (2) ON 50 times in succession (Error: 401) current 20 ms 20 ms 20 ms Paper detection sensor (3) ON twice in succession (Error: 402) Paper feed tray safety...

  • Page 314: Print Drum Peripheral Operations

    TIMING CHARTS 4. Print Drum Peripheral Operations [Clamp Release] Start Clamp sensor A Clamp sensor B Max 1 s Max 0.5 s Max 3 s (Error: 503) (Error: 504) (Error: 504) 280 ms Forward Clamp motor 100 ms Reverse 1615 When ON: Clamp sensor A: Blocked, Clamp sensor B: Blocked (1) The clamp motor operates in the forward direction on starting.

  • Page 315: [Master Clamp Operation]

    TIMING CHARTS [Master Clamp Operation] Start Restart Waiting for the loading of a master Clamp sensor A Clamp sensor B Max 1 s Max 1 s Max 1.5s (Error: 505) (Error: 506) (Error: 502) 250 ms 320 ms Forward Clamp motor 100 ms 100 ms Reverse...

  • Page 316: [Inking Operation (No Ink Detection)]

    TIMING CHARTS [Inking Operation (No Ink Detection)] Position A sensor Ink sensor 500 ms 500 ms 500 ms 500 ms 500 ms 500 ms 500 ms (2) OFF for A s in succession (Error: 512) Main motor Inking motor 1617 (1) Inking is performed with the main motor ON.

  • Page 317: [Print Drum Solenoid Lock Release]

    TIMING CHARTS [Print Drum Solenoid Lock Release] Start Position A sensor Print drum set sensor 100 ms 100 ms 100 ms Print drum release switch Front cover switch 20 ms 20 ms 20 ms 20 ms 20 ms 20 ms Print drum lock solenoid Max 30 s Print drum release switch...

  • Page 318: Print Adjustment Operations

    TIMING CHARTS 5. Print Adjustment Operations [Print Speed Change] Print drum angle (degree) Position A sensor Print speed adjustment DOWN Main motor Speed 3 Speed 4 Speed 3 Speed 2 Speed 3 1620 (1) If the print speed adjustment key is pressed, the speed does not change immediately, but rather at the next time the print drum reaches the 220°...

  • Page 319: [Vertical Print Positioning Operation]

    TIMING CHARTS [Vertical Print Positioning Operation] Print position adjustment Within 1 s Within 1 s (Operation ignored) Print positioning pulse motor 0.5 mm 0.5 mm 0.5 mm 0.5 mm 0.5 mm 1622 (1) If the print position adjustment key is pressed once (within 1 second), the position is immediately changed 0.5 mm.

  • Page 320: Master Removal Operations

    TIMING CHARTS Master Removal Operations 1. Overall Timing in Normal Master Making Start Image scanning Master making Master loading Master setting Thermal print head Compress Release Compress Release Master cutting Removed master vertical transport Master compressing Paper feed tray elevator Paper Ejection Wing Position A Home position...

  • Page 321: Individual Master Removal Operations

    TIMING CHARTS 2. Individual Master Removal Operations [Removed Master Vertical Transport Operation] Start Print drum angle (degree) Position A sensor (Error: 304) OFF-OFF Master removal sensor (Error: 303) Master compression sensor Main motor 10 rpm C rpm 10 rpm Master removal motor D ms 1624 When ON: Position A sensor: Blocked, Master removal sensor: Open, Master compression sensor:...

  • Page 322: [Disposed Master Compressing Operation]

    TIMING CHARTS [Disposed Master Compressing Operation] Start Master compression sensor Disposal box full sensor Compress Master compression motor Release Max 400 ms Max 3 s (Error: 306) (Error: 309) 100 ms 100 ms Max 11 s Max 7 s (Error: 307) (Error: 305) 1625 When ON: Master compression sensor: Open, Disposal box full sensor: Open...

  • Page 323: Master Making Operation

    TIMING CHARTS Master Making Operation 1. Overall Timing in Normal Master Making Start Image scanning Master making Master loading Master setting Thermal print head Compress Release Compress Release Master cutting Removed master vertical transport Master compressing Paper feed tray elevator Paper Ejection Wing Position A Home position...

  • Page 324: Individual Master Making Operation

    TIMING CHARTS 2. Individual Master Making Operation [Thermal Print Head Compression Operation] Start TPH pressure sensor Release Thermal pressure motor Compress 100 ms Max 2 s (Error: 216) Max 2 s (Error: 217) 1627 When ON: TPH pressure sensor: Blocked (1) At startup, the thermal pressure motor rotates in the compression direction until the TPH pressure sensor turns temporarily OFF and then back ON again.

  • Page 325: [Master Positioning Operation]

    TIMING CHARTS [Master Positioning Operation] Start Master positioning sensor Master detection sensor (1) OFF (Error: 210) 10ms 10ms 10ms (2) ON twice in succession (Error: 200) Master end sensor Max 3 s Approx. 1 mm +B mm 100 ms (Error: 202) B mm Feed 50 ms...

  • Page 326: [Master Cutting Operation]

    TIMING CHARTS [Master Cutting Operation] Start End 1 End 2 Master positioning sensor Print drum Print drum rotates 15°. rotates 15°. Cutter home position switch Cutter motor Max 450 ms Max 450 ms (Error: 204) (Error: 204) Max 450 ms (Error: 203) Max 450 ms (Error: 203) 1630 When ON: Master positioning sensor: Open, Master end sensor: Blocked...

  • Page 327: [Master Making Operation]

    TIMING CHARTS [Master Making Operation] Start Master positioning sensor Master detection sensor 10 ms 10 ms (2) ON twice in succession (Error: 200) Master end sensor Read/Write signal C mm Write operation for the effective printing area Feed Write pulse motor Return Feed Load pulse motor...

  • Page 328: Chapter 17: Panel Messages

    CHAPTER : PANEL MESSAGES Contents Explanation of Panel Messages ....................17-2 1. Error-Code Displays ....................... 17-2 Error type ......................17-2 Error point ....................... 17-2 List of Panel Messages ................... 17-3 Details on Panel Messages ..................17-7 Serviceman-call errors ..................17-7 T12 T13 2-1.

  • Page 329: Explanation Of Panel Messages

    PANEL MESSAGES Explanation of Panel Messages 1. Error-Code Displays • If an error occurs, an error message is displayed together with a graphic and an error code to indicate the problem to the user. • Error-code displays consist of an “error type” indicating the type of error and an “error-point number” indicating the error situation.

  • Page 330: List Of Panel Messages

    PANEL MESSAGES 1) List of Panel Messages Error type Description Model Main motor lock 300 & 400 dpi Elevator motor lock 300 & 400 dpi Clamp motor lock 300 & 400 dpi Overflow 300 & 400 dpi Print-positioning pulse-motor lock 300 &...
  • Page 331 PANEL MESSAGES Error type Description Model Master feed error 300 & 400 dpi Master loading error 300 & 400 dpi Cutting error 300 & 400 dpi Master-disposal error 300 & 400 dpi Master present in the master-disposal section 300 & 400 dpi Check paper-feed tray 300 &...
  • Page 332 PANEL MESSAGES Error type Description Model Replace ink cartridge 300 & 400 dpi Replace master roll 300 & 400 dpi Master-disposal box full 300 & 400 dpi No paper on paper feed tray 300 dpi Error type Description Model Print drum not set 300 &...
  • Page 333 PANEL MESSAGES Description Error type Model No master on drum 300 & 400 dpi Master image larger than paper size: 1 300 & 400 dpi Original not set (multi-original program) 300 & 400 dpi Print quantity under “minimum print quantity” 300 &...

  • Page 334: Details On Panel Messages

    PANEL MESSAGES 2) Details on Panel Messages 1. Serviceman-call errors Error type T01 [Main-motor lock] T01-*** !!System Error!! Press Reset Key 400 dpi Panel display If Recovery has failed, call service Press the lower right “Jam Reset” key. 300 dpi If recovery has failed, call Service &...
  • Page 335 PANEL MESSAGES T03 [Clamp motor] Error type T03-*** !!System Error!! Press Reset Key. 400 dpi Panel display If recovery has failed, call Service. Press the lower right “Jam Reset” key. 300 dpi If recovery has failed, call Service & quote the Error Code T03-***. Jam reset →...
  • Page 336 PANEL MESSAGES T05 [Print-positioning pulse-motor lock] Error type T03-*** !!System Error!! Press Reset Key. 400 dpi Panel display If recovery has failed, call Service. Press the lower right “Jam Reset” key. 300 dpi If recovery has failed, call Service & quote the Error Code T05-***. Jam reset →...
  • Page 337 PANEL MESSAGES Error type T09 [Option error (paper eject)] T09-*** 400 dpi !!System Error!! model Panel display Turn Main-Power SW OFF then ON. only If recovery has failed, call Service. Reset method Switch power on again. Error point Error conditions Sorter power is OFF when RN power is ON.
  • Page 338 PANEL MESSAGES Error type T12 [Master-disposal-section motor lock] T12-*** !!System Error!! Press Reset key. Panel display 400 dpi If recovery has failed, call Service. Press the lower right “Jam Reset” key. 300 dpi If recovery has failed, call Service & quote the Error Code T12-***. Jam reset →...
  • Page 339 PANEL MESSAGES Error type T14 [Flatbed error] T14-*** !!System Error!! Press Reset key. Panel display 400 dpi If recovery has failed, call Service. Turn Main-Power SW OFF then ON. 300 dpi If recovery has failed, call Service & quote the Error Code T14-***. 400 dpi Jam reset.
  • Page 340 PANEL MESSAGES Error type T15 [AF error] T15-*** !!System Error!! Press Reset key. 400 dpi Panel display If recovery has failed, call Service. Turn Main-Power SW OFF then ON. 300 dpi If recovery has failed, call Service & quote the Error Code T15-***. 400 dpi Jam reset.
  • Page 341 PANEL MESSAGES Error type T19 [Thermal-pressure motor lock] T19-*** !!System Error!! Press Reset key. 400 dpi Panel display If recovery has failed, call Service. Press the lower right “Jam Reset” key. 300 dpi If recovery has failed, call Service & quote the Error Code T19-***. Jam reset Reset method Error point...
  • Page 342 PANEL MESSAGES Error type T24 [Inking motor lock] T24-*** !!System Error!! Press Reset key. 400 dpi Panel display If recovery has failed, call Service. Press the lower right “Jam Reset” key. 300 dpi If recovery has failed, call Service & quote the Error Code T24-***. Jam reset or switch power on again.
  • Page 343 PANEL MESSAGES Error type T94 [TPH not connected] T94-*** 400 dpi !!System Error!! Panel display machine Press Reset key. only If recovery has failed, call Service. Jam reset or switch power on again. Reset method Error point Error conditions The TPH code is electrically OPEN-HI (all set to 1), indicating that the TPH connector may be disconnected.
  • Page 344 PANEL MESSAGES Error type T98 [Hardware error] T98-*** !!System Error!! Panel display Press Reset key. 400 dpi If recovery has failed, call Service. If recovery has failed, call Service & quote the Error Code T98-***. 300 dpi Switch power on again. Reset method Error point Error conditions...
  • Page 345 PANEL MESSAGES Error type T98 [Hardware error] T98-*** !!System Error!! Panel display Press Reset key. 400 dpi If recovery has failed, call Service. 300 dpi If recovery has failed, call Service & quote the Error Code T98-***. Switch power on again. Reset method Error conditions Error point...
  • Page 346 PANEL MESSAGES Error type T98 [Hardware error] T98-*** !!System Error!! Panel display Press Reset key. 400 dpi If recovery has failed, call Service. If recovery has failed, call Service & quote the Error Code T98-***. 300 dpi Switch power on again. Reset method Error point Error conditions...

  • Page 347: Jam Errors

    PANEL MESSAGES 2-1. Jam errors Also refer to page No.17-24 for other error-type-A Jam errors which come up under “G” code error. Error type A01 [Master feed error] A01-*** Panel display Master misfeed Rewind master roll and reset master in place. Master-making-unit sensor: Unblocked →...
  • Page 348 PANEL MESSAGES Error type A04 [Master-disposal error] A04-*** Panel display Master-Disposal Error Pull out print drum and discard master. Print-drum set sensor: Unblocked → Blocked, then recovery operation. * When this error occurs, if the print drum is at position A, the print-drum lock is Reset method automatically released.
  • Page 349 PANEL MESSAGES Error type A08 [Paper jam on print drum] A08-*** 300 dpi Panel display Paper jammed. only Pull out print drum and remove jammed paper. Print drum set sensor: Unblocked → Blocked. (Or switch power on again.) * When this error occurs, if the print drum is at position A, the print-drum lock is Reset method automatically released.
  • Page 350 PANEL MESSAGES Error type A16 [Awaiting master removal] A16-*** Master remains on print drum. 400 dpi Pull out print drum and remove master. Panel display Remove master from print drum. Pull out print drum and remove master 300 dpi mounted on print drum. Print-drum set sensor: Unblocked →...

  • Page 351: Jam Errors (Detailed Information On G-Code Errors) [400Dpi Machines]

    PANEL MESSAGES 2-2. Jam errors (Detailed information on G-code errors) [400 dpi machines only] Error type A07 [Paper-feed error] Error point Error conditions The paper-ejection sensor was blocked when the paper should have arrived, and the paper sensor was blocked at 180 ° , just before stopping. The paper sensor was activated three times in succession when a paper misfeed was detected (paper misfeed).

  • Page 352: Option Errors

    PANEL MESSAGES 3-1. Option errors Also refer to page No.17-28 for error-type-B Jam error which come up under “G” code error. Error type B01 [Keycard counter: No card] B01-*** Panel display Insert card into Keycard counter. Insert card. Reset method Error point Error conditions Keycard counter: No card...
  • Page 353 PANEL MESSAGES Error type B22 [ST sorter: Power off] B22-*** 400 dpi Panel display !!ST Sorter Has No Power!! only Turn ON Power Switch of it. Jam reset (Check the power switch of the ST sorter.) Reset method Error point Error conditions With the “Tape separation”...
  • Page 354 PANEL MESSAGES Error type B26 [Sorter: Print-on-bin error] B26-*** 400 dpi Panel display Check sorter panel display. TM5000: Remove paper and close the door. Reset method Error point Error conditions Error command (Paper-on-bin error) received from the sorter Error type B27 [Sorter: Staple error] B27-*** 400 dpi...

  • Page 355: Option Errors (Detailed Information On G-Code Errors) [400Dpi Machines]

    PANEL MESSAGES 3-2. Option errors (Detailed information on G-code errors) [400 dpi machine] Error type B03 [Sorter: Jam error] Error point Error conditions 400 dpi Error command (Jam error) received from the sorter [ 17 - 28 ]...

  • Page 356: Consumable Errors (C**)

    PANEL MESSAGES 4. Consumable errors Error type C01 [Replace ink cartridge] C01-*** Panel display No ink Replace ink cartridge. Ink-cartridge set sensor: OFF → ON Reset method Error point Error conditions The ink sensor did not go ON even when inking was performed for the preset period. Error type C02 [Replace master roll] C02-***...

  • Page 357: Set Check Errors

    PANEL MESSAGES 5. Set check errors Error type D01 [Print drum not set] D01-*** Panel display Set print drum in place. Turn the print-drum safety switch ON, and deactivate the print-drum set sensor. Reset method Error point Error conditions The print-drum set sensor was activated with the print-drum safety switch ON following print- drum setting.
  • Page 358 PANEL MESSAGES Error type D05 [Master not set] D05-*** Panel display Master not set in place Insert lead edge of master into master entrance and close master-making unit. Master detection sensor: ON Reset method Error point Error conditions The master detection sensor is OFF (not detecting master). Error type D07 [Master disposal box not set] D07-***...

  • Page 359: Warning (Serviceman Call)

    PANEL MESSAGES 6. Warning (Serviceman call) Error type E01 [Replace battery] A16-*** !! Battery Replacement !! 400 dpi Panel display Call Service. Call Service. 300 dpi (To continue the process, press the lower right “Jam Reset” key.) Jam reset Reset method Error point Error conditions The battery voltage was less than 2.5 V when the power was switched ON...

  • Page 360: Warning (Other)

    PANEL MESSAGES 7. Warning (Other) Error type F01 [No master on drum] No master on print drum Panel display Make a new master. Jam reset. Reset method Error point Error conditions There is no master on the print drum at the start of printing. Error type F02 [Master image larger than paper size: 1] Page format larger than paper size...
  • Page 361 PANEL MESSAGES Error type F10 [Master image larger than paper size: 2] Page format larger than paper size !!Possible ink smudges on prints!! Panel display (Continue → Test Print key) 400 dpi Continue → Test Print key/Cancel → Stop key 300 dpi Jam reset, or press the Test Print key.
  • Page 362 PANEL MESSAGES Error type F23 [Remote communication error] Communication Error 400 dpi Panel display Check communication devices and cables, then press the “Enter” key. Jam reset Reset method Error point Error conditions Communication error in remote mode (D to P data mode) Error type F25 [Incorrect image resolution] !!The Image Resolution of the Current Data has Just been Converted!!
  • Page 363 PANEL MESSAGES Error type F43 [D-to-P original/output paper nonconformance] Incorrect Paper Size 400 dpi Panel display Check Paper Size. (To resume, press the Start key.) Check the paper size, or press the Start key. Reset method Error point Error conditions The output paper size does not match the size of the original at the start of D-to-P master making.
  • Page 364 PANEL MESSAGES Error type F53 [More than 999 copies at one time not possible from linked printer] !! No More than 999 Copies on Linked Printers !! Link-mode Panel display machine Use This Printer (Number is to be Reset) Change the mode, or START Key to start (print out from RN). Reset method Error point Error conditions...
  • Page 365 PANEL MESSAGES Error type F57 [Printing from Linked Printer Disabled: Processing print data from PC] Processing Print Data from PC Link-mode Panel display machine Linked Printers are Not Available while Processing Current Data Change the mode. Reset method Error point Error conditions Cannot print from linked printer (Processing job from PC).

  • Page 366: Mib (Management Information Base) Error

    PANEL MESSAGES 8. MIB (Management Information Base) error Error type L01 [Communication error in MIB information acquisition] L01-*** Link-mode Panel display !! No Linked Printer Detected !! Machine Check Cable Connection and Power Supply for Linked Printers Check linked printer power source and cable connections, or change the output to one of other Reset method linked printers.

  • Page 367: G-Code Indication [400 Dpi Machines]

    PANEL MESSAGES 2. G-Code Indication (400 dpi machines only) A paper-jam error (including an AF original feed error, sorter: jam error) is assigned internal error codes such as [A**] and [B**], but when the error codes are combined, the panel displays error message [G**]. The “**”...

  • Page 368: Chapter 18: Test Mode

    CHAPTER : TEST MODE Contents Procedures ........................18-2 1) Start-up Procedure ..................... 18-2 2) Operating Procedure ....................18-2 3) Ending Procedure ...................... 18-2 Individual Test Procedures ..................18-3 1) Checking sensors and switches ................18-3 2) Checking motors and solenoids ................18-3 3) Checking unit operations ...................

  • Page 369: Procedures

    TEST MODE 1. Procedures 1) Start-up Procedure < 400 dpi machines > Switch on the power while pressing the ← and → print-positioning keys on the panel simultaneously. This starts the test mode in standby mode. < 300 dpi machines > Switch on power while pressing the “Master/Print”...

  • Page 370: Individual Test Procedures

    TEST MODE 2. Individual Test Procedures 1) Checking sensors and switches Indicates the sensor and switch status with audible beeps. • Detected: Buzzer sounds at 0.1 second intervals (short beeps). • Not detected:Buzzer sounds at 0.5 second intervals (long beeps). 2) Checking motors and solenoids Switch on by pressing the “Start”...

  • Page 371: System/Control Panel Test Mode

    TEST MODE 3. System/Control Panel Test Mode Sensors, sw itches Detection status Model Wakeup Key Check Key pressed 400 dpi Motors, solenoids Rem arks Model Beep Sound Check 1 0.1-second intervals Beep Sound Check 2 0.5-second intervals Wakeup LED ON Illuminates 400 dpi Unit checks...
  • Page 372 TEST MODE Data checks Display details Model Lists the Test Mode No. and setting for non-default items System-Parameter Adjustment Record during data setting. Displays the error code (D**) for the set sw itch that caused operation to stop. SW Action Record * 400 dpi machines: Up to the 8 most recent items * 300 dpi machines: The one most recent item Displays a list of the error numbers of errors (error types: T,...
  • Page 373 TEST MODE Data setting Model Maintenance-Drum Meter Entry (400 dpi machines) Maintenance Print-Drum Print Count Setting (300 dpi machines) Sets the number of print-drum prints for w hich the maintenance-call message is displayed (set for each print drum). Description Range: 0 to 9999 (x1000) Setting Unit: 1 (x1000) Default: 0...
  • Page 374 TEST MODE Data setting Model Minimum Print Number Setting Enable Sets Changeable or Unchangeable for the minimum print number set by the Administrator. Description 400 dpi Range: 0 (Unchangeable), 1 (Changeable) Setting Default: 1 (Changeable) Enables or disables the minimum print number set in the User mode. Description Range: 0 (Disabled), 1 (Enabled) 300 dpi...

  • Page 375: Process/Scanning Test Mode

    TEST MODE 4. Process/Scanning Test Mode Sensors, sw itches Detection status Model FB/AF HP sensor Carriage at home position Flatbed Original Det. Sensor Detecting (original present) Stage Cover Sensor Stage cover closed 400 dpi AF Registration Sensor Light blocked 300 dpi AF Read Sensor Light blocked (reflection blocked) AF Original Ejection Sensor...
  • Page 376 TEST MODE Data setting Model FB Horizontal Scan Position Adjustment Description Adjusts the original horizontal scan position on the flatbed. AF set separately. Range: -30 to +30 (-3.0 mm to +3.0 mm) * + is to left. [-35 to +40 (-3.5 mm to +4.0 mm)] Setting Unit: 5 (0.5 mm) Default: 0 mm...
  • Page 377 TEST MODE Data setting Model Stray White Dot Erasure Description The image processing function compensates if stray w hite dots of specified size exist. [New scanner] * Setting not required [Previous scanner] 400 dpi Range: 0 (OFF) Setting 1 (Deletion of 1x1 points) 2 (Deletion of 2x2 points) 3 (Deletion of 2x3 points) Default: 2...
  • Page 378 TEST MODE Data setting Model Halftone-Curve Selection (Photo) Description Selects the matrix forming the halftone-curve base for photo mode. Range: 0 to 8 400 dpi Setting Unit: 1 Default: 4 ABC Slice Level Setting Sets ABC (automatic base control) slice level. Description (Finer for larger values) Range:-32 to +32 [-16 to +16]...
  • Page 379 TEST MODE Data setting Model Line Edge Stress Level Adjustment (Text) [* For a new scanner only] Description Adjusts the line edge stress. [New scanner] Range: 0 to 31 400 dpi Unit: 1 Setting Default: 11 (for both 400 dpi and 300 dpi machines) [Previous scanner] * Setting not required.
  • Page 380 TEST MODE Data setting Model Smoothing Effect on Photo [* For a new scanner only] Description Adds smoothing effect on photographs (effective against moire). [New scanner] Range: 0 to 15 400 dpi Unit: 1 Setting Default: 7 (for both 400 dpi and 300 dpi machines) [Previous scanner] * Setting not required.

  • Page 381: Master Making Test Mode

    TEST MODE 5. Master Making Test Mode Sensors, sw itches Detection status Model Master-Positioning Sensor Blocked (master present) Master End Sensor Unblocked (master end label detected) Master Detection Sensor Blocked (master present) Cutter Home-Position Sw itch Sw itch OFF (cutter at home position) TPH Pressure Sensor Blocked (detection plate present) Master-Making-Unit Set Sensor...
  • Page 382 TEST MODE Data setting Model Master Front-End Position Adjustment Adjusts the small amount of return movement after the master-positioning sensor goes ON during master setting or follow ing master cutting. Description * The leading edge of the master should escape from master-positioning sensor in standby mode.

  • Page 383: Master Disposal Test Mode

    TEST MODE 6. Master Disposal Test Mode Sensors, sw itches Detection status Model Master-Disposal Jam Sensor Open (master present) Master Compression Sensor Open Disposal-Box-Full Det. Sensor Blocked Disposal-Box Safety Sw itch Sw itch ON (master disposal box set). * Flatbed safety SW and Print drum safety SW must be sw itched ON for the detection.

  • Page 384: Paper Feed/Eject Test Mode

    TEST MODE 7. Paper Feed/Eject Test Mode Sensors, sw itches Detection status Model Paper Detection Sensor Light received (paper present) Paper-Size Detection Sensor Light received (paper present) Upper Limit Sensor Blocked (blockage plate present) 300 dpi Elevator Upper-Limit Sensor A Blocked (blockage plate present) 400 dpi Elevator Upper-Limit Sensor B...
  • Page 385 TEST MODE Data settings Model Elevator Upper-Limit Selection Selects the paper-feed-tray stop position (paper-feed position). Tray position w ill be interlocked w ith the pressure-adjust lever in auto operation. Selections 1 and 2 are fixed Description 400 dpi positions. Range: 0: Auto 1: Standard 2: Card Setting Default: 0 (Auto) Paper-Feed-Clutch OFF-Angle / Standard...
  • Page 386 TEST MODE Data settings Model Paper Size VR Adjustment Selection Sets the paper-w idth type for paper-w idth-potentiometer compensation. Description This value determines the size used in the execution of Test Mode No. 451. Range: 0: Paper w idth 210 mm. 1: Paper w idth 297 mm. Setting Default: 1: (Paper w idth 297 mm.) --- Should be selected to 0 (paper w idth 210 m m) Paper Feed Clutch ON Angle (A3) * For models capable of feeding A3-size paper (Not available)

  • Page 387: Print Drum Test Mode

    TEST MODE 8. Print Drum Test Mode Sensors, sw itches Detection status Model Position-A Sensor Blocked (blockage plate present) Main-Motor Limit (Encoder) Sensor Blocked (blockage plate present) Clamp Sensor A Blocked (blockage plate present) Clamp Sensor B Blocked (blockage plate present) Master Loading Sensor Light received (master present) Ink Sensor...
  • Page 388 TEST MODE Data settings Model Master-Det. Print-Drum Angle Description Adjusts the drum angle in detecting the master during master loading. Range: -200 to +100 (-20.0° to +10.0°) * (+ delays detection.) Setting Unit: 2 (0.2°) Default: 0 (0°) Print-Drum Position-A Adjustment Description Adjusts the print-drum position-A stop position.
  • Page 389 TEST MODE Data settings Model Print Drum Code Description Sets the print drum code. * Refer to the print-drum-type code-setting table. Range: 1 to 16 300 dpi Units: 1 Setting Default: 3 * Run Test mode No.557 (inking operation) after setting. Range: 1 to 255 Units: 1 Setting...

  • Page 390: Printing Test Mode

    TEST MODE 9. Printing Test Mode Sensors, sw itches Detection status Model Print-Pressure Home Sensor Blocked (blockage plate present) Vertical-Centering Sensor Blocked (blockage plate present) Unit checks Model Vertical-Centering Action Returns the print drum to the vertical center position. Vertical Cycle Action Performs one vertical cycle.
  • Page 391 TEST MODE Data settings Model Maximum-Print-Quantity Setting Enable Description Enables and disables the maximum-print-number setting, and sets the maximum print number. Range: 0 (Maximum-print-number setting disabled), 1 to 9999 (1 sheet to 9999 sheets) 400 dpi Unit: 1 (1 sheet) Setting Default: 0 (Maximum-print-number setting disabled) * Cannot be selected from the menu screen.
  • Page 392 TEST MODE 10. Accessories Test Mode Sensors, sw itches Detection status Model AF Registration Sensor Blocked (original present) AF Read Sensor Blocked (original present) AF Original Ejection Sensor Blocked (original present) AF Original Detection Sensor Original present 400 dpi AF-Unit Cover Sw itch Stage cover (AF) set AF-Unit Signal Det.
  • Page 393 TEST MODE Data checks Display details Model Displays the storage-memory card data in the card slot. * Dow nloading of data from the card starts w hen the pow er is sw itched ON. Therefore, insert the card after turning ON the pow er sw itch.
  • Page 394 TEST MODE Data settings Model Editor Data Skip Range Adjustment Sets the scanning distance after the digitizer receives digitizer VSYNC (ignores noise in the Description initial section). 400 dpi Range: 0 to +255 (0 mm to +25.5 mm) Setting Unit: 1 (0.1 mm) Default: 0 (0 mm) RLP Printing-Position Adjustment (Main Scan) Adjusts the linked printer printing position (main scanning direction).
  • Page 395 TEST MODE Data settings Model Resolution-Conversion Processing Pattern (Photo) For linked printer output in the photo mode of the link-mode machine, resolution conversion is based on “random interpolation,” but “normal interpolation” can produce better image quality Description depending on the type of original. This parameter allow s the interpolation method to be changed.
  • Page 396 TEST MODE 11. “Factory Mode” test mode The “Factory Mode” test modes are for used for factory settings, and are not used in normal maintenance work. For the 400 dpi and 300 dpi machines with the new scanner model, however, when the scanner unit is replaced, the “Factory Mode”...
  • Page 397 TEST MODE Data settings Model 1220 Setting No.1 on New -type Scanner (Ref: Scanner unit part No. 021-97510-xxx) Enter the factory setting indicated on the sticker affixed to the scanner. (Sub-scanning- Description position deviation compensation) Range: 68 to 188 Setting Unit: 1 Default: 128 1221...

  • Page 398: Print Drum Code Settings

    TEST MODE [Reference Information] Print Drum Code Settings Code Size Type Black Color Black Color Black Legal Color Black Letter Color [Reference Information] Halftone-Curve Matrix (for 300 dpi machine) Light White Dark Light Black Dark [ 18 - 31 ]...
  • Page 399 TEST MODE [Memo] [ 18 - 32 ]...

  • Page 400: Chapter 19: Miscellaneous Precautions

    CHAPTER : MISCELLANEOUS PRECAUTIONS Contents 1. Software Downloading Procedure (RN25 Series) ............. 19-2 2. ROM Replacement (RN20/21 Series) ................19-2 3. Battery Replacement ......................19-2 4. Replacement of the SH-PCB (RN25 Series) ..............19-2 5. Main PCB Replacement (RN20/21 Series) ............... 19-4 6.

  • Page 401: Software Downloading Procedure (Rn25 Series)

    MISCELLANEOUS PRECAUTIONS 1. Software Downloading Procedure (RN25 Series) (1) Switch OFF the power. (2) Remove the left-hand (viewed from the front) card-slot cover with one screw (M3 x 6) from the rear cover. (3) Remove DM-32 memory card if inserted. (4) Insert the two downloading cards containing the new software.
  • Page 402 MISCELLANEOUS PRECAUTIONS (7) Run test modes No. 80 (Clear Error Status Data), 81 (Clear User Memory), 82 (Clear Test-Mode Data Setup). (8) Set the details noted in step (1). (9) Run Test Mode No. 491 (Paper Size VR Adjustment Selection), and set “1” for a model capable of feeding A3-size paper, and “0”...

  • Page 403: Main Pcb Replacement (Rn20/21 Series)

    MISCELLANEOUS PRECAUTIONS 5. Main PCB Replacement (RN20/21 Series) (1) When the Main PCB is replaced, it is necessary to enter settings in the test modes. Write down the following information before replacing the Main PCB. * Items in Test Mode No. 070 (System-Parameter Adjustment Record) * Changes in settings in the User mode (2) Switch off the power, remove the IC 18, ROM, and battery, and then remove the Main PCB.

  • Page 404: Drum-Control Pcb Replacement

    MISCELLANEOUS PRECAUTIONS 7. Drum-Control PCB Replacement (1) Pull out the print drum, and replace the PCB with a new one. (2) Install a new Drum-Control PCB, and set the print drum in the machine. (3) Enter the Test mode. (4) Using Test Mode No. 095 (Solenoid-Counter Enable/Disable Setting), disable the solenoid counter. (The solenoid counter must be disabled before the replacement work is conducted.) (5) Run Test Mode No.
  • Page 405 MISCELLANEOUS PRECAUTIONS [Memo] [ 19 - 6 ]...

  • Page 406: Chapter 20: Electrical Diagrams (Rn25 Series)

    CHAPTER : ELECTRICAL DIAGRAMS (RN25 Series) Contents 1. Connections ........................20-2 Block Chart ......................20-2 Power-Supply Section ....................20-3 Paper-Feed/Master-Removal Section ..............20-4 Master-Making Section ..................... 20-5 Drive Section ......................20-6 Paper-ejection section ....................20-7 Pulse Motor Section ....................20-8 Scanner Section .......................

  • Page 407: Connections

    ELECTRICAL DIAGRAMS (RN25 Series) 1. Connections 1) Block Chart [20 - 2 ]...

  • Page 408: Power-Supply Section

    ELECTRICAL DIAGRAMS (RN25 Series) 2) Power-Supply Section [ 20 - 3 ]...

  • Page 409: Paper-Feed/Master-Removal Section

    ELECTRICAL DIAGRAMS (RN25 Series) 3) Paper-Feed/Master-Removal Section [20 - 4 ]...

  • Page 410: Master-Making Section

    ELECTRICAL DIAGRAMS (RN25 Series) 4) Master-Making Section [ 20 - 5 ]...

  • Page 411: Drive Section

    ELECTRICAL DIAGRAMS (RN25 Series) 5) Drive Section [20 - 6 ]...
  • Page 412 M suction relay wire harness Stripper unit (Purple) (Purple) (Purple) Separation fan A (Purple) Separation fan (Purple) (Purple) (Purple) Separation fan B (Purple) Separation fan (Purple) (Purple) (Purple) Paper-receiving sensor (Purple) (Purple) (Purple) Paper-receiving sensor (Purple) (Purple) Pressure-roller HP Pressure-roller HP sensor M wing-motor wire harness (Purple) PM section...

  • Page 413: Paper-Ejection Section

    ELECTRICAL DIAGRAMS (RN25 Series) 7) Pulse Motor Section MP-motor wire harness (Purple) (Purple) (Purple) Print-positioning motor (Purple) (Purple) (Purple) (Purple) (Purple) Paper-ejection section (Purple) (Purple) (Purple) (Purple) (Bule) (Purple) (Purple) Load pulse motor (Purple) (Purple) (Purple) (Purple) (Purple) (Purple) Pressure-roller control motor (Purple) (Purple) (Purple)

  • Page 414: Scanner Section

    ELECTRICAL DIAGRAMS (RN25 Series) 8) Scanner Section [ 20 - 9 ]...
  • Page 415 Power-supply section Touch-panel Inverter E-05161 MSH/panel relay CN2 (Elevam) wire harness Backlight Backlight adjustment connector Panel unit...

  • Page 416: Sh/Option

    ELECTRICAL DIAGRAMS (RN25 Series) SH/Option [ 20 - 11 ]...

  • Page 417: Ripm/Option

    ELECTRICAL DIAGRAMS (RN25 Series) RIPM/Option [20 - 12 ]...

  • Page 418: Mechanical Controller/Option

    ELECTRICAL DIAGRAMS (RN25 Series) Mechanical Controller/Option [ 20 - 13 ]...
  • Page 419 Print-drum (black/color) unit Print-drum internal wire harness Ink-sensor relay wire harness (Purple) (Brown) (Brown) (Purple) (Brown) (Red) (Red) (Purple) (Red) (Red) (Purple) (Orange) (Orange) (Orange) (Yellow) (Yellow) (Purple) (Yellow) (Green) Ink sensor (Blue) Drawer connection (Purple) (Green) (Purple) (Purple) Drive section (Gray) Print-drum internal wire harness (White)

  • Page 420: Pcb Layout

    ELECTRICAL DIAGRAMS (RN25 Series) 2. PCB Layout AF-PCB Top view Scan-IF400-PCB 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6...

  • Page 421: Pcb Function Chart

    ELECTRICAL DIAGRAMS (RN25 Series) 3. PCB Function Chart Function Main PCB Overall control, computer interface control (SH-PCB) Power-supply unit Supply of power to various units (PSUNIT, PSUNIT-200) Mechanical Control PCB Motor and sensor control (CVM-MCTL-PCB) Image PCB Image processing (RIPM-PCB) Drive PCB Operation of various parts (MDRV-PCB)

  • Page 422: Power-Supply-Unit Fuse Chart

    ELECTRICAL DIAGRAMS (RN25 Series) 4. Power-Supply-Unit Fuse Chart The fuses differ between the 100V and 200V machines. 110V-120V 220V-240V Fuse No. System Phenomenon/affected parts machine machine Main Main electrical power 125 V 250 V (No Power if this fuse defective) 6.3 A +24 VA 125 V...
  • Page 423 ELECTRICAL DIAGRAMS (RN25 Series) [Memo] [20 - 18 ]...
  • Page 424 Master-Making Section .................... 21-10 10) Scanner Section ...................... 21-11 11) Option ........................21-12 2. PCB Layout ........................21-13 3. PCB Function Chart ..................... 21-14 4. Power-Supply-Unit Fuse Chart ..................21-15 [ 21 - 1 ] RISO Inc. Technical Services & Support US.RISO.COM...
  • Page 425 Panel section Master-removal section Drive section Paper-feed/drive  right section Print-drum section Power-supply section Paper-ejection clamp/drive  left section MAIN-CN-PCB (overseas) (Main PCB) Scanner section Master-making section Option...
  • Page 426 (White) (Orange) (Blue) (Black) (Red) (Orange) Relay (Brown) (Orange) Safety-switch wire harness (Orange) (White) (Black) (Red) (Orange) (Brown) (Brown) (Orange) (Orange) (Red) System power-supply wire harness (Red) (Brown) (Brown) (Orange) (Black) (Black) System  power-supply  wire harness Panel unit (Brown) (Red) (Orange) (Yellow) (Brown) Power-supply ZWS 10-5/ (Blue) J; Densei-Lambda     (Purple) (White) (Gray) (White)
  • Page 427 Sharp Detailed diagram Board-to-board Panel communication  wire harness Detailed diagram LCD contrast-adjustment  connector Power-supply section (CN 103)

  • Page 428: Power-Supply Section

    DF 9-pin AC DF 12-pin AC MCR 24-pin AS Safety-switch wire harness Safety-switch wire harness Sensor wire harness Master-removal section Paper-ejection/clamp/ drive left section Master-making/paper-ejection wire harness Press solenoid Elevator relay wire harness Elevator motor Print-positioning  pulse motor Drawer  connection Pressure-roller  control motor Master-making/paper-ejection  Main encoder wire harness System power-supply wire harness Safety-switch wire harness Paper-feed section MOLEX 8-pin AC DF 4-pin AC Print-drum section Power-supply section  (CN103/107)

  • Page 429: Chapter 21: Electrical Diagrams (Rn20/21 Series)

    ELECTRICAL DIAGRAMS (RN20/21 Series) 5) Master-Removal Section [ 21 - 6 ] RISO Inc. Technical Services & Support US.RISO.COM...
  • Page 430 (Purple) (Brown) Paper-size potentiometer (Purple) (Red) Voltage decreases when  (Purple) (Orange) turned clockwise CRV16-1K Ω: Copal (Purple) (Yellow) (Purple) (Green) Reflection sensor Paper-size sensor (Purple) Paper present (at specified location)   Low (Blue) (Purple) (Purple) Paper-detection sensor (Purple) (Gray) Reflection sensor Paper present (on paper-feed tray)     Low (Purple) (White) Paper-feed-tray internal wire harness Paper-feed tray (Purple) Paper-feed clutch Rated current: 0.155 A GP1A73A: When light is blocked, High output (Purple) GP2A25: When light is reflected, Low output (Purple) (Purple) U-shaped sensor Print-positioning sensor (Purple)
  • Page 431 Print-drum (black/color) unit Ink-sensor relay wire harness Print-drum internal  wire harness (Purple) (Brown) (Brown) (Purple) (Red) (Purple) (Red) (Orange) (Orange) (Purple) (Yellow) (Yellow) (Purple) Drive section (Green) (Green) Ink sensor Drawer connection (Green) (Purple) (Purple) (Blue) Print-drum internal wire harness (Gray) (Gray) (Blue) (Green) (Blue) (Blue) Print-drum set sensor Terminal for M4 Print-drum internal wire harness (Black) (Red) Ink-cartridge detection switch Ink motor...
  • Page 432 Suction unit Master-making/paper-ejection wire harness (Purple) (Purple) (Purple) (Purple) (Purple) (Purple) (Purple) Transfer encoder (Purple) (Purple) (Purple) (Purple) (Purple) (Purple) (Purple) (Purple) Paper-ejection (Purple) Paper-receiving sensor transfer motor (Purple) (Purple) Paper-receiving sensor (Purple) (Purple) (Purple) (Purple) Suction wire harness (Purple) Suction fan (Purple) (Purple) (Purple) (Purple) Pressure roller position sensor (Purple) (Purple) (Purple) (Brown) (Purple)
  • Page 433 Master-making/paper-ejection  wire harness Master-stocker wire harness Master-pressure set sensor (Purple) Master loading set (Purple) (Purple) (Purple) (Purple) Master-stocker unit (Purple) (Purple) Master end (Purple) (Purple) (Purple) (Purple) Master end sensor (Purple) Write motor phase-A (Purple) Write motor phase-B (Purple) (Purple) Write pulse motor (Purple) Write motor phase-A Write motor phase-B (Purple) (Purple) (Orange) Cutter motor (+) Cutter motor (-) (Purple) (Yellow) Cutter motor  (Purple) (Green) (Purple) (Blue) Cutter switch...
  • Page 434 Detailed diagram CCD PCB (Blue) (Green) (Yellow) (Orange) FB pulse motor Lamp (Red) (Brown) Inverter FB motor wire harness (Purple) U-shaped sensor (Purple) Original loading sensor (Purple) HP sensor (TLP1241: When light is blocked,  High output) U-shaped sensor (Purple) (Purple) Relay PCB (Purple) (Purple) (Purple) Reflection sensor (Purple) (Purple) Original detection sensor (Purple) (Purple) Scanner unit 300C (Purple) (Purple) (Purple) (Purple) Option (connected to AF) (Purple) (Purple) (Purple)
  • Page 435 Card counter Main-card-reader cable Card counter Connection check CC relay wire harness Keycard-counter  wire harness Detailed diagram RINC2 main-signal  wire harness Main-key counter Self-holding switch RINC2 main-imager wire harness PCB connection cable Connection signal Cluster A Cluster B Cluster B Detailed diagram Cluster A Scanner section RP ST-sorter wire harness Relay PCB Rocker switch Manual switch (main switch) ST sorter Read pulse  motor Read sensor (paper present: L) Original detection sensor (paper present: L) AF Relay PCB Registration sensor (paper present: H) Paper-receiving sensor (paper present: H)

  • Page 436: Pcb Layout

    ELECTRICAL DIAGRAMS (RN20/21 Series) 2. PCB Layout Front view SUB-SW-PCB PNL-CTL-PCB MAIN-SW-PCB Drive PCB Ink-Sensor PCB DRUM-PCB Power-supply unit Relay PCB Rear view AF-PCB Main PCB RISORINC2 [ 21 - 13 ] RISO Inc. Technical Services & Support US.RISO.COM...

  • Page 437: Pcb Function Chart

    Ink vortex detection, print-drum internal temperature (YAA81-0062) detection Relay PCB RISORINC2 control (RELAY-PCB) SC Power-Supply PCB Power supply to RISORINC2 (Power-supply unit: SC3K) RISORINC2 Computer interface function, image control (RINC2PCB: 64 MB) [ 21 - 14 ] RISO Inc. Technical Services & Support US.RISO.COM...

  • Page 438: Power-Supply-Unit Fuse Chart

    250 V 3.15 A 3.15 A +24 VM Main motor 125 V 250 V +24 VC 125 V 250 V Separation fan 3.15 A 3.15 A Suction fan [ 21 - 15 ] RISO Inc. Technical Services & Support US.RISO.COM...
  • Page 439 ELECTRICAL DIAGRAMS (RN20/21 Series) [Memo] [ 21 - 16 ] RISO Inc. Technical Services & Support US.RISO.COM...
  • Page 440 CHAPTER : ELECTRICAL COMPONENTS Contents 1. Motors ..........................22-2 2. Fans, Solenoids, Electromagnetic Clutch ................. 22-4 3. Photo-Sensors ......................... 22-6 4. Other Sensors, Switches, and Potentiometers ..............22-8 5-1. Electrical Components of AF (Optional) (RN25 Series) ..........22-9 5-2. Electrical Components of AF (Optional) (RN20/21 Series) .......... 22-10 [ 22 - 1 ]...

  • Page 441: Motors

    ELECTRICAL COMPONENTS 1. Motors 2201 2202 [ 22 - 2 ]...
  • Page 442 ELECTRICAL COMPONENTS Symbol Name of part Function Test Mode No. FB read pulse motor Transports the lamp carriage and mirror carriage. Compresses removed masters in the master-disposal Compression motor box. Master removal motor Rotates the master-removal vertical feed roller. Paper ejection motor Drives the transfer belts.

  • Page 443: Fans, Solenoids, Electromagnetic Clutch

    ELECTRICAL COMPONENTS 2. Fans, Solenoids, Electromagnetic Clutch 2203 2204 [ 22 - 4 ]...
  • Page 444 ELECTRICAL COMPONENTS Symbol Name of part Function Test Mode No. Separation fan Helps remove paper from the print drum. Suction fan Helps adhere paper to the transfer belts. Print-drum locking Locks or unlocks the print drum to or from the main unit. ----- solenoid Press solenoid...

  • Page 445: Photo-Sensors

    ELECTRICAL COMPONENTS 3. Photo-Sensors 2205 2206 [ 22 - 6 ]...
  • Page 446 ELECTRICAL COMPONENTS Test Symbol Name of part Type Function Mode No. Position A sensor Interrupt Checks Position A Checks whether the stage cover is open (RN25 Series) Cover-open sensor Interrupt or closed. (RN20/21) Checks whether there is an original on FB original detection sensor Reflection the flatbed.

  • Page 447: Other Sensors, Switches, And Potentiometers

    ELECTRICAL COMPONENTS 4. Other Sensors, Switches, and Potentiometers 2207 Symbol Name of part Function Test Mode No. Cutter HP switch Checks the cutter home position. Checks the scanner-table set position. Flatbed set switch Forcibly turns OFF the main motor, clamp motor, and TPH power supply.
  • Page 448 ELECTRICAL COMPONENTS 5-1. Electrical Parts of AF - Optional (RN25 Series) 2208 2209 Symbol Name of part Function Test Mode No. AF original detection Checks the AF original set position. sensor AF registration sensor Checks the original transfer. AF read sensor Checks the original transfer.
  • Page 449 ELECTRICAL COMPONENTS 5-2. Electrical Parts of AF - Optional (RN20/21 Series) 2210 Symbol Name of part Function Test Mode No. AF read pulse motor Drives the AF original transfer roller. AF original detection Checks the presence of the originials on the AF unit. sensor AF registration sensor Checks the original transfer.

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