Kyocera PF-315 Service Manual
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Kyocera PF-315 Service Manual

Kyocera PF-315 Service Manual

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PF-315
PF-310
SERVICE
MANUAL
Published in Jan '06
3KF70760

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Summary of Contents for Kyocera PF-315

  • Page 1 PF-315 PF-310 SERVICE MANUAL Published in Jan ’06 3KF70760...
  • Page 2 Revision history Revision Date Replaced pages Remarks...
  • Page 3 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 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 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 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 8 This page is intentionally left blank.

  • Page 9: 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...
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  • Page 11: Specifications

    1-1 Specifications 1-1-1 Specifications Paper size........76 to 216 mm × 148 to 305 mm Paper capacity ........ 2,000 sheets, 0.1 mm Noise (Excl. peak values) ....Max 54 dB(A) during paper feeding Max 60 dB(A) during moving tray Dimensions (W × H × D) ....345 × 352 × 376 mm (bulk paper feeder) 345 ×...

  • Page 12: 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 13: 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 14: 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 15: 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.
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  • Page 17: 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 18 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. Open the MP tray. MP tray Figure 1-2-1 2. Grasp and pull the MP tray upwards until it is removed from the printer.
  • Page 19 Installing the printer base and the printer 1. Align the positioning pins on the top of the printer base with the holes in the base of the printer, then slowly and carefully lower the printer onto the printer base. 2. Make sure that the connector on the printer base fits squarely into the corresponding Printer connector in the base of the printer.
  • Page 20 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 21 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 22: 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 23: 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 24: 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 25: 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 26: 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 27: 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 28: 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 main PWB. atte. Defective tray elevation motor. Start Wire between main PWB and tray Main PWB elevation motor is in good status? (no damage coating, or no connector loosen,...
  • Page 29 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 main PWB and paper feed motor is in good status? (no damage coating, or no connector...
  • Page 30 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 Wire between main body - printer base - bulk paper feeder is in good status? Replace or repair wire. Pin 10 of YC1 on the main PWB is 5 V, and pin 11 is 24 V?
  • Page 31 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 32 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 main PWB. Defective tray elevation motor. Start Wire between main PWB and tray...
  • Page 33 Problem Causes/check procedures Corrective measures (6)The tray is not Follow the flow chart below. Defective wire. ascended even Defective tray bottom posi- though the tray cover tion sensor. is closed (and reboo- ted). Defective main PWB. Defective cover interlock switch. Defective tray elevation motor.
  • Page 34 Problem Causes/check procedures Corrective measures (7) The tray is still Defective 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 2 of YC6 = 0 V with tray be reached to the top position? Replace main PWB.
  • Page 35 Problem Causes/check procedures Corrective measures (8) The tray is still Follow the flow chart below. Defective main PWB. kept on descending Defective tray elevation beyond the bottom motor. position. Defective wire. Defective tray bottom posi- tion sensor. Start Pin 2 of YC8 = 5 V with tray be reached to the bottom position.
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  • Page 37: 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 38: 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 39: 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 40: 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 four 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 41: 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 42 Feed roller Reverse roller One-way clutch Figure 2-1-2 FRR System In this system, both the paper feed and reverse rollers are driven clockwise at the shaft. The reverse roller, however, has the torque limiter (one-way clutch) at one end which in normal paper feeding effectively frees the reverse roller from the shaft to turn in counterclockwise direction by means of the friction given by the paper feed roller through the paper.

  • Page 43: 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.
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  • Page 45: 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 OP24V1 Transistor Motor array driver OP24V2 To flash Over writer current...
  • Page 46 Figure 2-3-2Main PWB silk-screen diagram Connector Pin No. Signal Voltage Description Ground Connected OPSEL2 0/5 V DC Paper feeder select signal 2 to the printer OPSEL1 0/5 V DC Paper feeder select signal 1 OPSEL0 0/5 V DC Paper feeder select signal 0 24VGND Power ground OPREADY*...
  • Page 47 Connector Pin No. Signal Voltage Description OP24V1 24 V DC 24 V DC power supply Connected COVER 0/24 V DC Cover interlock switch: Off/On to the cover OP24V2 0/24 V DC 24 V DC power supply (via cover interlock switch) interlock switch OP5V2...
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  • Page 49: Wiring Diagram

    2-4 Appendixes 2-4-1 Wiring diagram Interface Cover open connector OP24V1 detection COVER switch OP24V2 OPSEL2 OPSEL1 OPSEL0 Connected to 24VGND the printer OPREADY* OP5V2 base Tray top OPDO UPLIMIT position OPDI sensor OPSCLK OP5V OP24V Main PWB OP5V1 DBTX Paper OP5V2 DBRX feed...
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  • Page 51 PF-310 SERVICE MANUAL Published in January 2006...
  • Page 52 Revision history Revision Date Replaced pages Remarks...
  • Page 53 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 54 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 55 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 56 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 57 • 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 58 This page is intentionally left blank.
  • Page 59 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 1-3-2 Self-diagnosis ............................1-3-2 (1) Self-diagnostic function ........................1-3-2 1-3-3 Electric problems ............................1-3-3 (1) Defective paper jam detecting.
  • Page 60 This page is intentionally left blank.

  • Page 61: Specifications

    1-1 Specifications 1-1-1 Specifications Model name ........Paper feeder Paper size........Envelope C5, Executive, Letter, Legal, A4, B5, A5-R, ISO-B5, Folio, Oficio2, 16K, Custom (105 to 216 × 148 to 356 mm) Paper capacity ........ 500 sheets maximum, 80 g/m Dimensions (W ×...

  • Page 62: Parts Names

    1-1-2 Parts names Figure 1-1-1 Paper cassette Paper size window Paper gauge Interface connector Pins 1-1-2...

  • Page 63: Machine Cross Section

    1-1-3 Machine cross section Paper path Figure 1-1-2Machine cross section 1-1-3...
  • Page 64 This page is intentionally left blank. 1-1-4...

  • Page 65: 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 container 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 66 2. Push the bottom plate down until it locks. Bottom plate Figure 1-2-3 3. Turn the paper size dial so that the size of Paper size window the paper you are going to use appears in Paper size dial the paper size window. Figure 1-2-4 4.
  • Page 67 5. If you are going to set paper that is longer Extension paper cassette than A4, pull out the extension paper cas- Legal settes pushing the lock lever one by one and adjust them to the desired paper size. Lock lever A4-A5 Figure 1-2-6 6.
  • Page 68 8. Slide the paper into the paper cassette. Paper Paper cassette Figure 1-2-9 9. Insert the paper cassette into the slot in the paper feeder. Push it straight in as far as it will go. Paper feeder Paper cassette Figure 1-2-10 Completion of the machine installation.

  • Page 69: 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 Jam Paper misfeed message Cassette 2 Paper misfeed location Figure 1-3-1 (Cassette 1) (Printer)

  • Page 70: 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.

  • Page 71: Electric Problems

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

  • Page 72: Mechanical Problems

    1-3-4 Mechanical problems Problem Causes/check procedures Corrective measures Check if the surfaces of the following rollers Clean with isopropyl alcohol. (1) No paper feed. are dirty with paper powder: Pickup roller, Paper feed roller Check if the pickup roller and paper feed roller Check visually and replace any deformed are deformed.

  • Page 73: 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 74: Assembly And Disassembly

    1-4-2 Assembly and disassembly (1) Removing the conveying roller, paper feed roller and pickup roller 1. Remove the paper cassette from the paper feeder. 2. Remove the two stoppers. 3. Remove the two bushes and then remove the conveying roller. 4.

  • Page 75: Removing The Retard Roller

    (2) Removing the retard roller 1. Remove the paper cassette from the paper feeder. Bottom plate 2. Push the bottom plate down until it locks. Paper cassette 3. Remove the retard guide. Retard guide Figure 1-4-2 4. Remove the retard roller (holder) from the retard guide.

  • Page 76: Remove The Drive Unit And Main Pwb

    (3) Remove the drive unit and main PWB 1. Remove the four screws. Screw 2. Pull the upper cover rear ends (1). 3. While pulling out the cassette size switch (2), and then remove the upper cover. Screw Upper cover Screw Screw Cassette size...
  • Page 77 6. Remove the two screws and then detach the PWB bracket PWB bracket. Screw Screw Figure 1-4-6 7. Remove the two connectors (A). 8. Remove the one clamp. 9. Remove the three connectors (B). 10. Remove the two screws and then remove the main PWB.
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  • Page 79: Paper Feed Section

    2-1 Mechanical construction 2-1-1 Paper feed section (1) Paper feed section The paper feeder conveys paper from the paper cassette to the printer. Paper 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 mul- tiple sheets from being fed at one time, via the torque limiter.
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  • Page 81: 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 paper feeder and communications with the printer. Paper feed sensor........Detects paper jam in the paper feeder. Paper gauge sensor 1........
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  • Page 83: Main Pwb

    2-3 Operation of the PWBs 2-3-1 Main PWB Main PWB +24V +24 V DC, +5 V DC PFM_A OPSDI, OPSDO M_SM1 PFM_*A Printer/ PFM_B OPSCLK M_SM2 Motor upper Paper PFM_*B paper driver IC feed OPRDYN M_REF feeder (IC4) motor OPSEL0, OPSEL1, OPSEL2 ENABLE +24V1 driver...
  • Page 84 Figure 2-3-2Main PWB silk-screen diagram Connector Pin No. Signal Voltage Description +24V 0/24 V DC Paper feed clutch: On/Off Connected Ground to the paper feed clutch SCLK 0/5 V DC (pulse) Serial communication clock signal Connected 0/5 V DC (pulse) Serial communication data signal to the 0/5 V DC (pulse)
  • Page 85 2-4 Appendixes 2-4-1 Wiring diagram 2-4-1...
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