Utax PF 320 Service Manual
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Utax PF 320 Service Manual

Utax PF 320 Service Manual

Paper feeder
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Service
Manual
Date: 1 -0 -20
SM06

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Summary of Contents for Utax PF 320

  • Page 1 Service Manual Date: 1 -0 -20 SM06...
  • Page 2 Service Manual Date: -0 -20 SM06...
  • Page 3 CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. It may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for proper disposal. ATTENTION IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT.
  • Page 4 Revision history Revision Date pages Revised contents...
  • Page 5 This page is intentionally left blank.
  • Page 6 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 7 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 8 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 9 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 10 • Do not remove the ozone filter, if any, from the copier except for routine replacement....... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself......................•...
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  • Page 12: Table Of Contents

    CONTENTS 1-1 Specifications 1-1-1 Specifications ........................1-1-1 1-1-2 Parts names .......................... 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 Troubleshooting 1-3-1 Paper misfeed detection ......................1-3-1 (1) Paper misfeed indication ....................1-3-1 (2) Paper misfeed detection....................
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  • Page 14: Specifications

    1-1 Specifications 1-1-1 Specifications Item Specifications Type Loading type feeding unit Feed system Retard friction roller system Legal, Oficio II, Mexican Oficio, Letter, Executive, Statement, Folio, A4, B5(JIS), A5, B6, Return postcard, B5(ISO), C5, Commercial #10, DL, Paper size Commercial #9, Monarch, Commercial #6-3/4, Youkei4, Youkei2, 16K, Custom (92.1mm x 165.1mm / 3 5/8”...

  • Page 15: Parts Names

    1-1-2 Parts names Figure 1-1-1 1. Cassette 2. Papersize window 3. Interface connector 4. Pins 1-1-2...

  • Page 16: Machine Cross Section

    1-1-3 Machine cross section Paper path Figure 1-1-2 Machine cross section 1-1-3...
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  • Page 18: Unpacking And Installation

    1-2 Installation 1-2-1 Unpacking and installation (1) Installation procedure Installing the paper feeder 1. Remove the paper feeder from the con- tainer box and place the feeder where you want to install it. 2. Lift the printer up without tilting it, then put it down onto the paper feeder(s) by fitting the four corners as shown in the figure.
  • Page 19 2. Turn the cassette size dial so that the size of the paper you are going to use appears in the paper size window. Cassette size dial Paper size Cassette Window Figure 1-2-3 3. Push the lock lever on the left side Lock lever guide and slide to the desired paper Paper width...
  • Page 20 Extension cassette 4. If you are going to set paper that is lon- Legal ger than A4, pull out the extension cas- settes pushing the lock lbutton one by one and adjust them to the desired paper size. A4 - A5 Lock button Figure 1-2-5 5.
  • Page 21 7. Slide the paper into the paper cassette. Maximum line(Plain) Maximum line(Envelope) Cassette Figure 1-2-8 8. Insert the cassette into the slot in the paper feeder. Push it straight in as far as it will go. Paper feeder Cassette Figure 1-2-9 Completion of the machine installation.

  • Page 22: Paper Misfeed Detection

    1-3 Troubleshooting 1-3-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the printer immediately stops copying and displays the jam location on the printer operation panel. Paper misfeed message Paper misfeed location Figure 1-3-1 Paper misfeed indication (2) Paper misfeed detection Printer Cassette 1...

  • Page 23: Self-Diagnosis

    1-3-2 Self-diagnosis (1) Self-diagnostic function This printer is equipped with self-diagnostic function. When a problem is detected, the printer stops printing and display an error message on the operation panel. An error message consists of a message prompting a contact to service personnel, total print count, and a four-digit error code indicating the type of the error. (The display varies depending on the type of the error.) Total print Errer code...
  • Page 24 Check procedures/ Code Contents Causes corrective measures 1030 PF lift motor 2 error Defective bot- Check to see if the bottom plate can (paper feeder 2) tom plate eleva- move smoothly and repair it if any prob- After cassette 3 is inserted, PF lift tion mechanism lem is found.
  • Page 25 Check procedures/ Code Contents Causes corrective measures 1050 PF lift motor 4 error Defective bot- Check to see if the bottom plate can (paper feeder) tom plate eleva- move smoothly and repair it if any prob- After cassette 5 is inserted, PF lift tion mechanism lem is found.
  • Page 26 Check procedures/ Code Contents Causes corrective measures 1820 Paper feeder 3 communication Improper installa- Follow installation instruction carefully error tion paper again. A communication error is detected feeder. 10 times in succession. Defective con- Reinsert the connector. Also check for nector cable or continuity within the connector cable.
  • Page 27 Check procedures/ Code Contents Causes corrective measures 2600 PF feed motor 1 error Defective con- Reinsert the connector. Also check for (paper feeder 1) nector cable or continuity within the connector cable. When the PF feed motor is driven, poor contact in If none, replace the cable.
  • Page 28 Check procedures/ Code Contents Causes corrective measures 2630 PF feed motor 4 error Defective con- Reinsert the connector. Also check for (paper feeder 4) nector cable or continuity within the connector cable. When the PF feed motor is driven, poor contact in If none, replace the cable.

  • Page 29: Electric Problems

    1-3-3 Electric problems Problem Causes Check procedures/corrective measures (1)Defective paper Actuators of paper feed Check visually and replace if necessary. jam detecting. sensor does not operate False paper jam smoothly. message display. A piece of paper torn Check visually and remove it, if any. from a sheet is caught around actuator of paper feed sensor.

  • Page 30: Mechanical Problems

    1-3-4 Mechanical problems Problem Causes/check procedures Corrective measures (1)No paper feed. Check if the surfaces of the following roll- Clean with isopropyl alcohol. ers are dirty with paper powder: Pickup roller, Paper feed roller Check if the pickup roller and paper feed Check visually and replace any roller are deformed.
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  • Page 32: Precautions For Assembly And Disassembly

    1-4 Assembly and Disassembly 1-4-1 Precautions for assembly and disassembly (1) Precautions Before starting disassembly, press the Power key on the operation panel to off. Make sure that the Power lamp is off before turning off the main power switch. Unplug the power cable from the wall outlet. When handling PWBs (printed wiring boards), do not touch parts with bare hands.

  • Page 33: Assembly And Disassembly

    1-4-2 Assembly and disassembly (1) Removing the conveying roller, paper feed roller and pickup roller Procedure 1. Remove the cassette from the paper feeder. Paper feed roller 2. While pressing the lock lever and then slide the roller holder. Roller holder 3.

  • Page 34: Removing The Retard Roller

    (2) Removing the retard roller 1. Remove the cassette from the paper Retard roller assembly feeder. 2. Release two hooks in backside of cas- sette and then remove the retard roller assembly. Cassette backside Hook Cassette Figure 1-4-2 3. Remove the spring. Retard roller guide 4.

  • Page 35: Remove The Drive Unit And Pf Main Pwb

    (3) Remove the drive unit and PF main PWB 1. Remove the right front cover. Screw 2. Remove the five screws. Upper cover 3. Pull the upper cover rear ends. 4. While pulling out the paper size switch, and then remove the upper cover. Screw Screw Screw...
  • Page 36 Screw 7. Pull the three connectors out and then release the wires from the wire holders. 8. Remove the three screws and then Screw remove the drive unit. Screw Wires Connectors Wire holders Drive unit Figure 1-4-6 9. Pull the paper feed roller assembly up. Screw 10.
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  • Page 38: Paper Feed Section

    2-1 Mechanical construction 2-1-1 Paper feed section (1) Paper feed section The paper feeder conveys paper from the cassette to the printer. Cassette can hold up to 500 sheets of paper. Paper is fed from the paper feeder by the rotation of the pickup roller and paper feed roller. The retard roller prevents multiple sheets from being fed at one time, via the torque limiter.
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  • Page 40: Electrical Parts Layout

    2-2 Electrical Parts Layout 2-2-1 Electrical parts layout (1) Electrical parts 8 10 Figure 2-2-1 Electrical parts 1. PF main PWB (PFMPWB) ....Controls electrical components in the paper feeder and communi- cations with the printer. 2. PF paper sensor 1 (PFPS1)....Detects the paper remaining amount level. 3.
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  • Page 42: Main Pwb

    2-3 Operation of the PWBs 2-3-1 Main PWB YC8 3 1 Figure 2-3-1 Main PWB silk-screen diagram 2-3-1...
  • Page 43 Connector Signal Voltage Description +3.3V2 3.3 V DC 3.3 V DC power output to PFS Connected to Ground the PF paper 0/3.3 V DC PFPFS: On/Off fed sensor PAPSIZ0 0/3.3 V DC PFCSSW0: On/Off Connected to PAPSIZ1 0/3.3 V DC PFCSSW1: On/Off the PF cas- Ground...
  • Page 44 Connector Signal Voltage Description TMDIR 0/3.3 V DC PFPFM rotation direction signal Connected to TMLOCK 0/3.3 V DC PFPFM rotation stable signal the PF paper TMCLK 0/3.3 V DC(pulse) PFPFM clock signal feed motor TMDRVN 0/3.3 V DC PFPFM control signal Ground +24V2 24 V DC...
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  • Page 46: Appendix

    2-4 Appendixes 2-4-1 Appendix (1) Wiring diagram PF main PWB +24V2 TMDRVN LMOTOR TMCLK PFPFM TMLOCK PFLM TMDIR PFLS PFPS1 PFPS2 OPPAUSEN OPPAUSEN OPSEL0 OPSEL0 OPSEL1 OPSEL1 OPSEL2 OPSEL2 PRINTER +3.3V1 +3.3V1 Lower PF OPRDYN OPRDYN Upper PF OPSCLK OPSCLK OPSDI OPSDI OPSDO...
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