Utax PF-3100 Service Manual
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Utax PF-3100 Service Manual

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Service
Manual
Paper Feeder
PF-3100
First Edition
Date: 17-10-2016
3S3SM060

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Summary of Contents for Utax PF-3100

  • Page 1 Service Manual Paper Feeder PF-3100 First Edition Date: 17-10-2016 3S3SM060...
  • Page 2 Service Manual Paper Feeder PF-3100 First Edition Date: 17-10-2016 3S3SM060...
  • 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......................•...
  • Page 11 This page is intentionally left blank.

  • Page 12: Table Of Contents

    CONTENTS 1-1 Specifications 1-1-1 Specifications............................1-1-1 1-1-2 Paper specifications..........................1-1-2 (1) Paper specifications ..........................1-1-2 (2) Selecting the right paper ........................1-1-2 (2-1) Condition of the paper .......................1-1-2 (2-2) Paper size ..........................1-1-2 (2-3) Smoothness ..........................1-1-3 (2-4) Basis weight ..........................1-1-3 (2-5) Moisture content........................1-1-3 (3) Paper storage............................1-1-3 (4) Envelopes and postcards ........................1-1-4 (4-1) Envelopes..........................1-1-4 (4-2) Curly envelopes.........................1-1-5...
  • Page 13 2-4 Appendixes 2-4-1 Wiring diagram............................2-4-1...
  • Page 14 This page is intentionally left blank.

  • Page 16: Specifications

    1-1 Specifications 1-1-1 Specifications Item Specifications Envelope Monarch, Envelope #10, Envelope DL, Envelope C5, Execu- Paper size tive, Letter, A4, B5, A5, A6, B6, Envelope #9, Envelope #6, ISO B5, Cus- tom, Hagaki, Oufuku Hagaki, 16K, Statement, Youkei 2 and Youkei 4 Plain, Transparency, Preprinted, Labels, Bond, Recycled, Vellum, Paper type Rough, Letterhead, Color, Prepunched, Envelope, Cardstock, Thick,...

  • Page 17: Paper Specifications

    1-1-2 Paper specifications General guidelines The bulk paper feeder is designed for use with various special types of print media such as adhesive backed label, thick paper, envelopes, and post cards, it may not be used to print on paper not satisfying the requirements below. Note The manufacturer assumes no liability for problems that occur when paper not satisfying these requirements is used with the bulk paper feeder.

  • Page 18: Smoothness

    command of the PRESCRIBE command language to tell the printer the size of the paper or envelope. Refer to the printer’s Prescribe II Command reference in the CD-ROM supplied with the printer. (2-3) Smoothness The paper should have a smooth, uncoated surface. Paper with a rough or sandy surface can cause voids in the printed output.

  • Page 19: Envelopes And Postcards

    (4) Envelopes and postcards When selecting envelopes and postcards, use the guidelines given below. (4-1) Envelopes An envelope is a more complex objects than a single sheet of paper. For this reason, it may not be possible to obtain con- sistent printing quality over the entire envelope surface.

  • Page 20: Curly Envelopes

    (4-2) Curly envelopes An envelope tends to curl excessively or become uneven in its thickness since it is constructed by paper which is folded, creased, and seamed in many parts, making the stack of envelopes on the feeder tray unlevel. To avoid feeding problems, the unlevelness of the stack of envelopes on the paper tray must be less than those specified in the following figures.
  • Page 21 This page is intentionally left blank. 1-1-6...

  • Page 22: Installation

    1-2 Installation 1-2-1 Unpacking and installation (1) Installation procedure Start Removing the MP tray. Installing the printer to the printer base. Installing the bulk paper feeder. End. 1-2-1...
  • Page 23 Removing the MP tray In order to install the bulk paper feeder in the printer, the printer’s MP tray must be removed. Proceed as the following instructions: 1. Unplug the power source plug. Front cover 2. Open the front cover. 3.
  • Page 24 4. Remove the fulcrum of leftside by extending a cover. 5. Remove the fulcrum of rightside during twisting a cover. 6. Remove the front cover forward. Front cover Front cover Figure 1-2-2 1-2-3...
  • Page 25 7. Remove two screws on the MP paper feed unit. Screw MP paper feed unit Screw Figure 1-2-3 8. Remove the MP paper feed unit from the printer. Retain the MP paper feed unit for future use. Printer MP paper feed unit Figure 1-2-4 1-2-4...
  • Page 26 9. Attach the spacer by the screw to the printer. 10. Refit the removed front cover. 11. Close the top cover and the front cover. 12. Refit the removed cassette. Spacer Printer Screw Figure 1-2-5 Installing the printer base and the printer 1.
  • Page 27 Installing the bulk paper feeder 1. Mount the bulk paper feeder onto the rail in the lower deck of the base. The rail is mov- Bulk paper feeder able and must be pulled out before installing Printer the bulk paper feeder. Pull the rail fully out until it stops.
  • Page 28 4. Make sure that the output slot of the bulk Printer paper feeder is properly aligned with the MP tray slot on the front side of the printer. Bulk paper feeder 5. This completes setting up the bulk paper Output slot feeder with the printer.

  • Page 29: Operating The Paper Feeder

    1-2-2 Operating the paper feeder (1) Loading paper Caution When the tray is rising or descending, please observe the following precautions. Keep your fingers out of the slot on the inner side of the bulk paper feeder. While the tray is descending, keep your hands out from under the tray. Do not push down on the tray or pull it upward.

  • Page 30: Loading Envelopes And Postcards

    (2) Loading envelopes and postcards If you are loading postcards in the bulk paper feeder, load them so that they are fed with the top edge first. For envelopes, make sure that they are fed with the right or bottom edge first. Direction of paper feed Postcard...

  • Page 31: Selection Using Prescribe's Psrc Command

    (4-2) Selection using prescribe’s PSRC command Feed selection can be done using the PSRC command of the Prescribe command language. To switch paper feed to the option paper feeder, place the PSRC command in a file or program as follows. !R! PSRC 0;...

  • Page 32: Paper Misfeed Detection

    1-3 Troubleshooting 1-3-1 Paper misfeed detection (1) Paper misfeed indication If the printer’s message display shows [Paper jam] or [Add paper] (even though the feeder has paper loaded inside), detach the bulk paper feeder from the printer by sliding with the rail away from the printer, holding the bulk paper feeder by both hands as shown below.

  • Page 33: Paper Misfeed Detection Conditions

    (2) Paper misfeed detection conditions Problem Causes/check procedures Corrective measures Too much paper in bulk Open tray cover. Remove any quantity in excess of the marked Paper will not feed paper feeder. limit. properly into printer. Paper too slick or stack Fan and flex paper to separate sheets.

  • Page 34: Self-Diagnostic Function

    1-3-2 Self-diagnostic function (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.

  • Page 35: Electric Problems

    1-3-3 Electric problems Problem Causes/check procedures Corrective measures (1) "Tray elevation Defective wire. Follow the flow chart below. motor does not oper- Defective PF main PWB. atte. Defective tray elevation motor. Start Wire between PF main PWB PF main PWB and tray elevation motor is in good status? (no damage coating, or no...
  • Page 36 Problem Causes/check procedures Corrective measures (2) "No Paper" sta- Defective main PWB. Follow the flow chart below. tus still has dis- Defective wire. played. Defective paper feed motor. Start Paper is fed to the paper feed sensor? Wire between PF main PWB and paper feed motor is in good status? (no damage coating, or no...
  • Page 37 Problem Causes/check procedures Corrective measures (3) Bulk paper feeder Defective wire. Follow the flow chart below. is not recognized. Defective printer’s engine PWB. Start Is the lamp (green and orange) of a printer base on? Is the lamp (green) of a printer base on? Replace PWB of Wire between...
  • Page 38 Problem Causes/check procedures Corrective measures (4) The tray is not Defective elevation motor. Follow the flow chart below. descended even Defective tray bottom posi- though the tray cover tion sensor. is opened. Defective main PWB. Start Wire between paper and tray elevation motor is in good status? (no damage coating, or no connector loosen,...
  • Page 39 Problem Causes/check procedures Corrective measures (5)The tray is not Defective wire. Follow the flow chart below. descended even Defective tray bottom posi- though paper is tion sensor. empty. Defective paper feed sen- sor. Defective PF main PWB. Defective tray elevation motor.
  • Page 40 Problem Causes/check procedures Corrective measures (6)The tray is not Defective wire. Follow the flow chart below. ascended even Defective tray bottom posi- though the tray cover tion sensor. is closed (and rebooted). Defective PF main PWB. Defective cover interlock switch. Defective tray elevation motor.
  • Page 41 Problem Causes/check procedures Corrective measures (7) The tray is still Defective PF main PWB. Follow the flow chart below. kept on ascending Defective tray elevation over the top position. motor. Defective wire. Defective tray top position sensor. Start Pin 3 of YC5 = 0 V with tray be reached to the top position? Replace PF main PWB.
  • Page 42 Problem Causes/check procedures Corrective measures (8) The tray is still Defective PF main PWB. Follow the flow chart below. kept on descending Defective tray elevation beyond the bottom motor. position. Defective wire. Defective tray bottom posi- tion sensor. Start Pin 3 of YC7 = 3.3 V with tray be reached to the bottom position.
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  • Page 44: Assembly And Disassembly

    1-4 Assembly and Disassembly 1-4-1 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, do not touch connectors with bare hands or damage the board. Do not touch any PWB containing ICs with bare hands or any object prone to static charge.

  • Page 45: Assembly And Disassembly

    1-4-2 Assembly and disassembly (1) Removing the bulk paper feeder from the printer Warning: Before removing the bulk paper feeder, turn printer power off. 1. To remove the bulk paper feeder from the printer, slide it away from the printer’s opera- Bulk paper feeder tion panel on the rail.

  • Page 46: Removing The Side Covers

    (3) Removing the side covers Note: To gain access to any of the internal parts, the side covers must be removed first. 1. To remove the side cover, remove two screws at the bottom side of the side cover. 2. Remove the other side cover using the same manner.

  • Page 47: Removing The Mounting Rail From The Printer Base

    (5) Removing the mounting rail from the printer base 1. To remove the rail from the printer base, remove two screws that secure the stopper at the inner end. 2. Then pull the rail outward as shown right. Printer base Mount rail Figure 1-4-5 1-4-4...

  • Page 48: Paper Feed Section

    2-1 Mechanical construction 2-1-1 Paper feed section (1) FRR System To avoid paper jam caused when several sheets of paper are fed at one time, the bulk paper feeder uses the friction retarded roller (FRR) system for paper feed. The operating theory for this system follows this section. Subsequently-fed paper Feed roller Middle feed roller...
  • Page 49 Feed roller Retard roller One-way clutch Figure 2-1-2 FRR System The feed roller is driven counter-clockwise on the shaft in this system. The retard roller has a torque limiter (one-way clutch) at one side to drive the roller freely from the shaft so that it rotates counter-clockwise with the friction applied from the feed roller via paper.

  • Page 50: The Fault Detection Function Of The Pwb

    (2) The fault detection function of the PWB Attachment PB-325 is equipped with fault detection LED of an engine PWB and PB PWB. Failure PWB Failure contents LED1 (Orange) LED2 (Green) Engine PWB +24V fuse disconnection Putting out lights +3.3V fuse disconnection PB PWB 24V cutoff circuit FET breakage Putting out lights...
  • Page 51 This page is intentionally left blank. 2-1-4...

  • Page 52: Electrical Parts Layout

    2-2 Electrical Parts Layout 2-2-1 Electrical parts layout (1) Electrical parts Electrical parts Figure 2-2-1 Main PWB ............ Controls electrical components in the bulk paper feeder and communica- tions with the printer. Tray top position sensor....... This sensor, when the top of the paper stack in the paper tray has reached the top most position, ready for feeding paper through the bulk paper feeder output slot.

  • Page 53: Electrical Parts (Pb-325)

    (2) Electrical parts (PB-325) Electrical parts (PB-325) Figure 2-2-2 PB PWB ............Consists of wiring relay circuit between engine PWB of printer and main PWB of printer base. Relay interface connector A......Connects the printer base and the printer. Relay interface connector B......Connects the printer base and the bulk paper feeder. 2-2-2...

  • Page 54: Main Pwb

    2-3 Operation of the PWBs 2-3-1 Main PWB The diagram below shows the main PWB and the components of the bulk paper feeder. Cover interlock switch Tray Paper feed elevation motor motor OP3.3V Transistor Motor circuit driver Over current Tray top detection position circuit...
  • Page 55 Figure 2-3-2Main PWB silk-screen diagram Connector Pin No. Signal Voltage Description DC5V 5 V DC power input Connected PFSEL2 DC0V/3.3V PF Select2 signal to the printer PFSEL1 DC0V/3.3V PF Select1 signal PFSEL0 DC0V/3.3V PF Select0 signal PFRDYN DC0V/3.3V Serial comunication signal_Ready PFTxD DC0V/3.3V Serial comunication signal_Data...
  • Page 56 Connector Pin No. Signal Voltage Description FEED AN DC0V/24V Paper feed motor drive output Connected FEED A DC0V/24V Paper feed motor drive output to the paper FEED B DC0V/24V Paper feed motor drive output feed motor FEED BN DC0V/24V Paper feed motor drive output MOTOR2 DC0V/24V Tray elevation motor drive output...
  • Page 57 This page is intentionally left blank. 2-3-4...
  • Page 58 2-4 Appendixes 2-4-1 Wiring diagram Interface Tray connector DOWNLED bottom position DOWNLIMIT PFSEL2 sensor PFSEL1 PFSEL0 Connected to PFRDYN the printer PFTxD UPLED base Tray top PFRxD position PFCLK UPLIMIT sensor +24V PF main PWB Paper FFLED feed sensor FEEDN MOTOR1 Cover open Tray elevation...

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