Kyocera DU-61 Service Manual
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Kyocera DU-61 Service Manual

Kyocera DU-61 Service Manual

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DU-61
SERVICE
MANUAL
Published in Jan. '04
3DS70761
Revision 1

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Summary of Contents for Kyocera DU-61

  • Page 1 DU-61 SERVICE MANUAL Published in Jan. '04 3DS70761 Revision 1...
  • Page 2 Revision history Version Data Replaced pages Remarks 9-Jan-2004 1-1-1, 1-4-1, 1-4-4, 1-4-5, 2-1-1, 2-1-3, 19-Jan-2004 2-1-4, 2-2-1...

  • Page 3: Safety Precautions

    Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
  • Page 4 Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.

  • Page 5: Installation Precautions

    1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current..................... •...

  • Page 6: Precautions For Maintenance

    2. Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
  • Page 7 • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself....................... • Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a cable cover or other appropriate item.
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  • Page 9: Table Of Contents

    CONTENTS 1-1 Specifications 1-1-1 Specifications ............................1-1-1 1-1-2 Name of parts ............................1-1-2 (1) Overall ............................1-1-2 1-1-3 Machine cross section .......................... 1-1-3 1-2 Installation 1-2-1 Unpacking and installation ........................1-2-1 (1) Installation procedure ........................1-2-1 1-3 Maintenance 1-3-1 Cleaning the switchback roller ......................1-3-1 (1) Cleaning the switchback roller ......................
  • Page 10 This page is intentionally left blank. This page is intentionally left blank.

  • Page 11: Specifications

    1-1-1 Specifications Compatible printer ......Kyocera Mita Page Printers FS-1800/1800N/3800N/1920/3820N/3830N Paper size ........A4 (210 × 297 mm) B5 (182 × 257 mm) A5 (148 × 210 mm) Letter (8 " × 11") Legal (8 " × 14") Folio (210 × 330 mm) Oficio II (216 ×...

  • Page 12: Name Of Parts

    1-1-2 Name of parts (1) Overall Figure 1-1-1 1. Interface connector 2. Positioning pins 3. Duplex drawer 4. Rear cover 5. Right cover 6. Left cover 7. Vertical path assembly 1-1-2...

  • Page 13: Machine Cross Section

    1-1-3 Machine cross section Printer Vertical path assembly Switchback Paper refeed section section Duplexer Paper path Printer, face-up output tray Figure 1-1-2 1-1-3...
  • Page 14 This page is intentionally left blank. 1-1-4...

  • Page 15: Unpacking And Installation

    1-2-1 Unpacking and installation (1) Installation procedure Removing the tape and pad. 1. Remove the nine tape and pad from the duplexer. Tape Tape Tape Tape Tape Tape Duplexer Figure 1-2-1 1-2-1...
  • Page 16 Placing the printer 1. While pushing the release levers inward, remove the vertical path assembly. Release levers Vertical path assembly Figure 1-2-2 2. Turn off the printer disconnect the power cord and printer cable. Gently place the printer on top of the duplexer.
  • Page 17 Connecting the printer cable and power cord 1. Connect the printer cable (Parallel, USB, Serial, or Network) according to operation environment. Printer cable Figure 1-2-4 2. Connect the power cord to the printer. Pass the connected cable and power cord through the opening in the duplexer.
  • Page 18 3. Install the vertical path assembly. Vertical path assembly Figure 1-2-6 Completion of machine installation. 1-2-4...

  • Page 19: Cleaning The Switchback Roller

    1-3-1 Cleaning the switchback roller (1) Cleaning the switchback roller Remove the vertical path assembly (See page 1-5-2). Using the cleaning cloth, wipe the switchback roller. Switchback roller Figure 1-3-1 1-3-1...
  • Page 20 This page is intentionally left blank. 1-3-2...

  • Page 21: Paper Misfeed Detection

    1-4-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the printer immediately stops printing and displays the paper misfeed message on the printer’s operator panel. To remove paper misfeed in the duplexer, pull out the duplex drawer or rear cover. Paper misfeed message Paper jam Duplexer...

  • Page 22: Correcting A Paper Jam

    (3) Correcting a paper jam If a paper jam occurs in the duplexer, remove the jammed paper as described below. After you have removed the jammed paper, open and close the printer’s top cover to clear the error message from the message display. Jam in the rear cover 1.
  • Page 23 Jam in the duplex drawer 1. Pull out the duplex drawer. Remove the jammed paper. Duplex drawer Figure 1-4-5 Duplex drawer Figure 1-4-6 1-4-3...

  • Page 24: Self-Diagnosis

    1-4-2 Self-diagnosis (1) Self-diagnostic function The printer does not operate when a message beginning with “Call service 0460” or “Call service 1210” is displayed. The message is categorized as follows: Call service 0460:0123456 Error code Figure 1-4-7 (2) Self diagnostic codes Remarks Code Contents...

  • Page 25: Electrical Problems

    1-4-3 Electrical problems Problem Causes Check procedures/corrective measures (1) False “Duplexer Open the rear cover of duplexer, then close tightly. Rear cover is not closed rear cover open”. completely. Check for continuity across each switch. If there is no continuity Defective rear cover interlock switch.
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  • Page 27: Precautions For Assembly And Disassembly

    1-5-1 Precautions for assembly and disassembly (1) Precautions • Be sure to turn the power switch off and disconnect the power plug before starting disassembly. • When handling PWBs (printed wiring boards), do not touch parts with bare hands. The PWBs are susceptible to static charge.

  • Page 28: Removing The Vertical Path Assembly

    1-5-2 Removing the vertical path assembly 1. While pushing the release levers inward, remove the vertical path assembly. Release levers Vertical path assembly Figure 1-5-1 Removing the vertical path assembly 1-5-2...

  • Page 29: Removing The Right And Left Cover

    1-5-3 Removing the right and left cover 1. Remove the vertical path assembly. See page 1-5-2. 2. Pull out the duplex drawer. 3. Remove three screws. To remove the right cover and grounding plate. 4. Remove four screws. To remove the left cover. Left cover Screw Screw...

  • Page 30: Removing The Duplexer Board

    1-5-4 Removing the duplexer board 1. Remove the vertical path assembly. See page 1-5-2. 2. Pull out the duplex drawer. 3. Remove the right cover. See page 1-5-3. 4. Remove nine connectors from duplexer board. Remove three screws. To remove the duplexer board.

  • Page 31: Paper Feeding System Of Duplexer

    2-1-1 Paper feeding system of duplexer The figure below shows the components in the duplexer and the paths through which the paper travels. The sensors, solenoid, motors etc., are described in the following pages. Printer Vertical path assembly Switchback Paper refeed section section Duplexer...

  • Page 32: Paper Feeding Control Of Duplexer

    (1) Paper feed control of duplexer The following diagram shows interconnectivity of the feeding system components including the sensors and rollers. The duplexer board controls paper conveying operation in the duplexer. Upon reception of a control signal from the engine board of the printer, it drives the motors and the solenoid to operate the rollers and the guide.

  • Page 33: Paper Feeding Mechanism Of Duplexer

    (2) Paper feeding mechanism of duplexer Swichback section After printing onto the first face, the change guide of the printer switches the paper path to the face-up ejection side, to convey the paper into the duplexer. When the paper enters the duplexer, the switchback motor rotates forward to drive the vertical path roller and switchback roller, to convey the paper to the switchback section.
  • Page 34 Paper refeed section The paper refeed motor rotates conveying roller 1, conveying roller 2 and the duplex refeed roller, to convey the paper entering the paper refeed section back into the printer. During this operation, the paper refeed motor moves the side registration guide to the size of the paper by rotating in the reverse direction as support to the paper conveying operation.

  • Page 35: Electrical Parts Layout

    2-2-1 Electrical parts layout (1) Electrical parts layout Figure 2-2-1 Electrical parts layout 1. Duplexer board ..........Controls duplexer electrical components. Interface with printer. 2. Rear cover interlock switch ......Detects the opening and closing of the rear cover. Breaks the safety circuit (24 V DC power supply) when the rear cover is opened.
  • Page 36 This page is intentionally left blank. 2-2-2...

  • Page 37: Duplexer Board

    2-3-1 Duplexer board (1) Duplexer board Duplexer board EEPROM (IC6) 24 V DI, DO 5 V PB TR50 Branch BRSOL solenoid TR52 VPS, DDS, Sensors SBS, SRS, DRS 24 V PB 24 V PB Motor drive Switchback circuit (IC4) 24 V PB motor (IC3) Cooling...
  • Page 38 Connector Pin No. Signal Voltage Description 5/0 V DC Vertical path sensor: On/Off Connected Ground Signal ground to the 5 V DC 5 V DC power supply vertical 5 V DC 5 V DC power supply path sensor 24V PB 24 V DC 24 V DC power supply Connected...
  • Page 39 Connector Pin No. Signal Voltage Description 24V PB 24 V DC 24 V DC power supply Connected 0/24 V DC Cooling fan motor 1 and 2: On/Off to the cooling fan motor 1 and 2-3-3...
  • Page 40 This page is intentionally left blank. 2-3-4...

  • Page 41: Wiring Diagram

    Wiring diagram 2-4-1...

  • Page 42: Timing Chart

    Timing chart 2-4-2...

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