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Panasonic KX-P7100 Service Manual

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See also: Operating Instructions , Setup Manual
ORDER NO.KM60108623C0
G0

Laser Printer

KX-P7100
© 2001 Kyushu Matsushita Electric Co., Ltd. All
rights
reserved.
Unauthorized
copying
and
distribution is a violation of law.

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Summary of Contents for Panasonic KX-P7100

  • Page 1: Laser Printer

    ORDER NO.KM60108623C0 Laser Printer KX-P7100 © 2001 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.
  • Page 2 KX-P7100...

  • Page 3: Table Of Contents

    KX-P7100 CONTENTS Page Page 1 Introduction 6.5. Relay Board ( B ) 1.1. Specifications 6.6. Toner Empty Sensor Board 1.2. Indicators 7 Component Reference Guide 1.3. Parts Identification 7.1. IC1 ( Main Control CPU ) 1.4. Component Layout and Paper Path 7.2.

  • Page 4: Introduction

    KX-P7100 1 Introduction 1.1. Specifications 1.1.1. Printer...
  • Page 5 KX-P7100 1.1.2. Paper...
  • Page 6 KX-P7100 1.1.3. Interface, Options, Accessories, and Supplies...
  • Page 7 KX-P7100 1.1.4. Others 1.1.4.1. About Media Available Media and Media Size Available Paper Weights and Capacity...

  • Page 8: Margins And Print Area

    KX-P7100 Recommended Media Transparency: · To avoid damaging the printer, do not use ink jet transparency. · Transparencies and adhesive material of labels should be stable at 205°C ( 400°F ), the printer’s maximum temperature. · Re-using transparencies that have been fed through the printer once ( for example, after jams or if the transparency is ejected without being printed ) can reduce the life of the consumables and paper path components.

  • Page 9: Indicators

    KX-P7100 1.2. Indicators 1.2.1. Printer Panel 1.2.2. Indicators / Button Three indicators show the following printer’s status. For detailed information on the printer status and recovery, see Section 9.1.
  • Page 10 KX-P7100...

  • Page 11: Parts Identification

    KX-P7100 1.3. Parts Identification 1.3.1. Front Side View 1.3.2. Rear Side View...

  • Page 12: Component Layout And Paper Path

    KX-P7100 1.4. Component Layout and Paper Path...

  • Page 13: Electrical Components And Sensor Boards

    KX-P7100 1.5. Electrical Components and Sensor Boards...

  • Page 14: Switches And Solenoids

    KX-P7100 1.6. Switches and Solenoids...

  • Page 15: Print Process

    KX-P7100 1.7. Print Process 1.7.1. Charge The charge corona applies a high, uniform positive charge to the surface of the organic photoconductor ( OPC ) drum. The charge level is approximately 900 VDC and remains because the OPC drum has a high electrical resistance when concealed in darkness.
  • Page 16 KX-P7100 Cleaning: After transfer, residual toner remains on the drum surface, and for next printing, the residual toner reaches to the development area via charge and exposure. The charge level of the OPC corresponds to the white background is +900VDC, andthe bias voltage of the conductive roller is approx.

  • Page 17: Paper Feed

    KX-P7100 1.8. Paper Feed Media Tray The main motor drives the pickup roller after the pickup solenoid is energized, which engages the pickup roller clutch and feeds a sheet of paper. The paper is pushed to the paper feed roller, which overdrives the paper slightly causing a buckleto ensure the paper is aligned with the stationary registration roller.

  • Page 18: Laser Scan Unit ( Exposure )

    KX-P7100 1.9. Laser Scan Unit ( Exposure ) 1.9.1. Operation Theory The light beam from the laser diode ( light source ) is modulated by the digital signal (nVIDEO) and converted to parallel light waves by the collimator lens. The beam is then sent to the rotating polygon mirror (polygon scanner), where it is reflectedthrough the lens and then focused onto the OPC drum surface.
  • Page 19 KX-P7100 1.9.3. Collimator Lens The collimator lens converts light from the laser diode to parallel light. This aids in scanning and provides better convergence to a dot. 1.9.4. Polygon Scanner The polygon scanner consists of a 6-sided mirror directly driven by a brushless DC motor at a rate 20,078.74 rpm. The laser beam is reflected across the OPC drum by the mirror faces and produces the scan.

  • Page 20: Fuser Unit

    KX-P7100 1.10. Fuser Unit A 600W heat lamp ( halogen lamp ) heats the surface of the teflon-coated heat roller to approximately 190°C ( 374°F ), a thermistor monitors the heat roller temperature, and the CPU controls the ON/OFF timing of the lamp.

  • Page 21: Paper Ejection And Paper Switchback

    KX-P7100 1.11. Paper Ejection and Paper Switchback A. Normal Printing Mode ( Not Duplex Mode ) After fusing, paper is fed to the output tray by the switchback roller and switchback pinch roller. The paper exit/ADU paper jam sensor detects paper. If paper does not arrive at the sensor within a predetermined period of time, “Jamat A” is displayed, and if paper remains at the sensor beyond a predetermined period, “Jam at B”...

  • Page 22: Installation, Setup, And Repacking

    KX-P7100 2 Installation, Setup, and Repacking 2.1. Installation Requirements 2.1.1. Environment 1. Temperature Range :10 °C - 32.5 °C ( 50 °F - 90.5 °F ) ( Temperature fluctuation ± 10 °C per hour or less ) 2. Humidity Range :20% RH - 80% RH ( Humidity fluctuation ± 20 °C per hour or less ) 3.
  • Page 23 KX-P7100 Slide the side pins of the toner cartridge into the drum unit. Push down the toner cartridge as shown to lock in place. Note: To prevent any damage to the drum unit, · Do not touch the black drum surface ( A ).

  • Page 24: Repacking

    KX-P7100 2.3. Repacking Prepare the unit before shipping. Note: It is highly recommended that users keep the original carton and ALL packing materials. Please follow these instructions when transporting or shipping the printer. · The printer weights about 10 kg {22 lbs}.
  • Page 25 KX-P7100 While pushing the drum unit ( 1 ), lift the toner cartridge up ( 2 ). Replace the shipping cover on the toner cartridge. Insert the toner cartridge into a plastic bag (1) and seal the end of the bag tightly (2,3).
  • Page 26 KX-P7100 Insert the drum unit into a plastic bag and seal the end of the bag tightly. Wipe off any loose toner in and around the printer. Note: · If a toner vacuum is available, it is the best tool for cleaning spilled toner.

  • Page 27: Removal And Replacement Procedures

    KX-P7100 3 Removal and Replacement Procedures 3.1. Front and Rear Covers Remove the Front Cover by releasing the hooks. Remove the Rear Cover by releasing the hooks.
  • Page 28 KX-P7100 3.1.1. Front Cover Disassembly Remove the Pinch Roller Holder Assembly ( 2 screws ). Remove the Paper Guide Pinion Gear ( 1 screws ). Remove the Guide Racks ( 2 screw ). 3.1.2. Rear Cover Disassembly Release the Shaft from the hook by pushing the shaft support in the arrow direction.

  • Page 29: Right, Left And Top Covers

    KX-P7100 3.2. Right, Left and Top Covers 3.2.1. Right Cover 1. Remove the screw. 2. Release the 2 hooks from the bottom side of printer. 3. Remove the Right Cover. 4. Remove the LED Indicator Cover and Continue Button ( 1 screw ).

  • Page 30: Laser Scanning Unit ( Lsu )

    KX-P7100 3.3. Laser Scanning Unit ( LSU ) Before handling, remove the Right, Left and Top Covers ( see Section 3.2 ). Remove the 3 screws. Disconnect the 2 connectors from the LSU. 3.4. Relay Board (B) Before handling, remove the Left Cover ( see Section 3.2 ).

  • Page 31: High Voltage Board And Power Supply Unit

    KX-P7100 3.5. High Voltage Board and Power Supply Unit Before handling, remove the Left Cover ( see Section 3.2 ). 3.5.1. High Voltage Board Remove the screw ( A ) and 5 screws ( B ). Caution : Screw ( A ) is different from screws ( B ). When reinstalling the screw, return it to the original position.

  • Page 32: Power Supply Unit

    KX-P7100 3.5.2. Power Supply Unit Disconnect the 2 connectors. Remove the 3 screws ( A ) and 2 screws ( B ). Caution : The screw ( A ) differs from the screw ( B ). When reinstalling the screw, return it to the original position.

  • Page 33: Indicator Board And Toner Empty Sensor Board

    KX-P7100 3.6. Indicator Board and Toner Empty Sensor Board Before handling, remove the Right Cover ( see Section 3.2 ). Disconnect the Flat Cable from the Indicator Board. Remove the Indicator Board. Remove the screw. Remove the Toner Empty Sensor Board.

  • Page 34: Fan Motor

    KX-P7100 3.7.2. Fuser Drive Gear Remove screw ( A ) and 6 screws ( B ). Caution : Screw ( A ) is different from screw ( B ). When reinstalling the screw ( A ), return it to the original position.

  • Page 35: Gear Support Bracket, Motor And Drive Gear Unit

    KX-P7100 3.9. Gear Support Bracket, Motor and Drive Gear Unit Before handling, perform the following steps A - B : A. Remove the Right Cover ( see Section 3.2 ). B. Remove the Main Board Shield Cover ( see Section 3.7.1 ).
  • Page 36 KX-P7100 3.9.3. Drive Gear Unit Disassembly Remove the Motor ( 2 screws ) from the Drive Gear Unit. Remove the 5 screws. Remove the Motor Bracket. All gears can be removed after removing the plastic ring.

  • Page 37: Upper Exit Roller Holder

    KX-P7100 3.10. Upper Exit Roller Holder Before handling, perform the following steps A - B : A. Remove the Right, Left and Top Covers ( see Section 3.2 ). B. Remove the Main Board Shield Cover ( see Section 3.7.1 ).

  • Page 38: Fuser Unit

    KX-P7100 3.11. Fuser Unit Before performing the following steps, remove the upper Exit Roller Holder ( see Section 3.10 ). Disconnect connector CN9 on the Main Controller Board. Disconnect the connector CN202 from the Power Supply Unit. Disconnect the connector CN407 from the Relay Board (B).

  • Page 39: Heat Roller

    KX-P7100 Note: When reinstalling the exit roller rubber to the lower exit roller shaft, ensure it is installed as shown in figure-( A ). 3.11.2. Heat Lamp Remove the Side Fuser Cover ( 2 screws ). Remove the screw ( A ) and screw ( B ) from the ends of Heat Lamp Terminals.
  • Page 40 KX-P7100 3.11.4. Thermostat Remove the 2 screw ( A ) and Thermal Fuse. Remove the screw ( B ) and Thermostat. Caution : · When reinstalling the thermostat, both end terminals must be positioned under the terminals of thermal fuse and lead wire as shown in the following figure, or thermostat cannot properly measure the surface temperature of the heat roller becausethe distance between the surface of heat roller and thermostat may change.
  • Page 41 KX-P7100 3.11.5. Paper Exit / ADU Paper Jam Sensor Lever and Paper Exit / ADU Paper Jam Sensor Board 1. Remove the Fuser Unit ( see section 3.11 ). 2. Remove the Paper Exit/ADU Paper Jam Sensor Lever with spring.

  • Page 42: Pickup, Paper Feed, Registration And Transfer Rollers

    KX-P7100 3.12. Pickup, Paper Feed, Registration and Transfer Rollers Before handling, perform the following steps A - B : A. Remove the Gear Support Bracket and 8 gears ( see Section 3.9.1 ). B. Remove the Front Cover ( see Section 3.1.1 ).

  • Page 43: Paper Feed Roller

    KX-P7100 3.12.2. Paper Feed Roller / Registration Roller 3.12.2.1. Paper Feed Roller 1. Slide out the bushing from the Paper Feed Roller Shaft. 2. Remove the Paper Feed Roller Gear and Drive Wheel by releasing the hook from the Paper Feed Roller Shaft. Then, remove the Paper Feed Roller Shaft.

  • Page 44: Transfer Roller Assembly

    KX-P7100 3.13. Transfer Roller Assembly Before handling, perform the following step. A. Remove the Front Cover ( see Section 3.1.1 ). 1. Remove the 2 Transfer Roller Holders. 2. Remove the Transfer Roller Assembly by pulling up it. Caution: · Do not touch the surface of Transfer Roller to prevent any print quality problems.

  • Page 45: Auto Duplex Unit, Adu Registration Roller And Adu Pinch Roller

    KX-P7100 3.14. Auto Duplex Unit, ADU Registration Roller and ADU Pinch Roller Before handling, perform the following steps A-B : A. Remove the Paper Cassette and OPC Drum Unit. B. Place the printer up side down. 3.14.1. Auto Duplex Unit ( ADU ) Remove the 2 screws ( A ) and 4 screws ( B ).
  • Page 46 KX-P7100 3.14.1.2. Auto Duplex Disassembly 1. The ADU Pinch Roller Plate can be separated from the Registration Roller Plate by removing the screw ( A ). 2. The ADU Jam Release Pan can be separated from the Registration Roller Plate by removing the 2 screws ( B ) and...

  • Page 47: Registration Sensor, Paper Top Detection Sensor And Registration & Paper Top Detection Sensor Board

    KX-P7100 3.15. Registration Sensor, Paper Top Detection Sensor and Registration & Paper Top Detection Sensor Board Before handling, perform the following steps A - D : A. Remove the Paper Cassette and OPC Drum Unit. B. Remove the Left and Right Covers ( see Sections 3.2.1 and 3.2.2 ).
  • Page 48 KX-P7100...

  • Page 49: Electronic Circuit Description And Diagrams

    KX-P7100 4 Electronic Circuit Description and Diagrams 4.1. Block Diagram Fuser Unit Heat Lamp Power Supply Unit Thermister Fuser Driver Thermal Fuse +24V Rectifier High Voltage Supply Thermostat Noise Filter +24V IR High Voltage Thermistor nCHGCTL Circuit DEV BIAS nDBCTL...

  • Page 50: Connection Diagram

    Process +5VGND 6 +5VGND Toner Empty Sensor Error CN451 CN20 TE_ROUT 1 TE_ROUT 2 +5VGND Push SW +5VGND sub-c CN18 A OUT Pulse Motor nA OUT (PM Bipolar type) nB OUT BOUT CN19 FAN PWR +24VGND FAN ERR Model No.KX-P7100...

  • Page 51: Power Supply

    KX-P7100 4.3. Power Supply The power supply circuit generates +5Vdc and +24Vdc. It also supplies AC Voltage to the halogen heat lamp in the fuser unit.

  • Page 52: Main Control Board

    KX-P7100 4.4. Main Control Board 4.4.1. Main Control CPU This CPU is an 8-bit microcontroller which is compatible with the Intel 80C51. It contains the two types of memory: ROM : 4k bytes, RAM : 128 bytes The CPU controls the RIP block of this printer. The main functions are as follows :...
  • Page 53 KX-P7100 4.4.2. GDI ASIC ( IC3 ) 1) CPU Interface The CPU interface consists of an 8-bit data bus and control signals between GDI ASIC and CPU. 2) DRAM I/F This block controls DRAM, which is the buffer where transient print data is stored.
  • Page 54 KX-P7100 4.4.3. USB Chip This USB Chip is a customized USB-Parallel Convertor. The Parallel side of this USB chip is suitable for the GDI ASIC via KME ASIC. 4.4.4. DRAM A 2MByte EDO DRAM, which is organized as 1,048,576 words x 16 bits, is mounted on this Main board.
  • Page 55 KX-P7100 4.4.5. ASIC ( KME ) (A) This block is the serial communication interface with the Engine CPU ( IC11 ). (B) This block is the interface with the GDI Controller CPU ( IC1 ). (C) This block is the Stepping Motor Controller ( CH0 ) to control the main motor.
  • Page 56 KX-P7100 4.4.6. Clock The system clock ( 12.00MHz ) is generated by IC6 and X3, and it is supplied to the CPU ( IC1 and IC11 ) and USB chip through IC6, pin4. The video data clock ( 53.84 MHz ) is generated by IC2 and X2, and it is supplied to the ASIC ( IC3 and IC6).

  • Page 57: Reset Circuit

    KX-P7100 4.4.7. Reset Circuit Reset signal is generated when the power is turned on. The reset circuit initializes the CPU ( IC1 & IC11 ), the ASIC ( IC3 & IC6 ) and the USB Chip. Approximately 100~800 msec after turning on the power, pin4 of IC10 goes high.

  • Page 58: Main Motor Drive Circuit

    KX-P7100 4.4.8. Main Motor Drive Circuit The main motor ( 2-phase stepping motor ) is driven by IC14 ( bipolar constant current driver ). The SMOA, SMONA, SMOB and SMONB signals shown below are used to control motor direction. when the signals are output as shown below, the main motor rotates.
  • Page 59 KX-P7100 Motor Driver True Table IN 1 or 4 IN 2 or 3 OUT 1 or 4 OUT 2 or 3 Note: Motor Current will be cut off in case of “OFF” condition above. Motor Driver True Table for Current Chopping Level...
  • Page 60 KX-P7100 4.4.9. Laser Scanning Unit Control Circuit The laser unit consists of laser drive circuit and scanner motor drive circuit. Laser control signals are as follows. nVIDEO: This is actual data being printed. nLDON: When the nLDON signal is low, the laser unit is activated.

  • Page 61: Fuser Temperature Control Circuit

    KX-P7100 4.4.10. Fuser Temperature Control Circuit The fuser temperature is controlled by IC11 ( Engine CPU ). IC11 has an analog to digital ( A/D ) converter ( AN0-AN7 ). Thermistor TH is connected to IC11 ( AN0 ). When IC11 ( Pin31 ) is low, Q7 is turned off. And Q4 is turned on. ThenHeat lamp inside fuser unit is turned on.
  • Page 62 KX-P7100 4.4.11. High Voltage Control Circuit 1. Charge Control Circuit This circuit consists of a DC-DC converter, which boosts +24V to approximately +5.4kV ( constant current approx. +300µA ) for the charge corona. nCHGCTL signal controls the charge output. If the signal goes low,the output is turned on.

  • Page 63: Eeprom Control Circuit

    KX-P7100 4.4.12. EEPROM Control Circuit This printer has 2kbit EEPROM ( IC12 ). Page Count Data, Calibration Data, etc. are saved on the IC. The EEPROM control signals are explained as follows. EEPCS: This is the chip select signal. EEPCLK: This is the serial data transfer clock.
  • Page 64 KX-P7100 4.4.13. Safety Interlock SW This printer has two safety interlock switches: front door safety interlock switch, and an OPC drum unit safety interlock switch. +24V power is supplied to the front door safety interlock switch. When the front door is opened, the frontdoor safety interlock switch is opened and shuts off the main motor driver power and the high voltage unit power.
  • Page 65 KX-P7100 4.4.14. Solenoids Control Circuit This printer has three solenoids: pickup solenoid, registration solenoid and a switchback solenoid. 4.4.14.1. The Pickup Control Solenoid Drive Circuit The pickup solenoid is used for picking up the media from the media tray. The CPU IC11 outputs high level PUCTL signal from pin41 to the transistor Q20.
  • Page 66 KX-P7100 4.4.14.3. The Switchback Solenoid Drive Control Circuit The switchback solenoid is used for controlling media switchback when the printer is auto duplex printing. The CPU IC11 outputs high level EXITCTL signal from pin43 to the transistor Q22. The transistor Q22 and Q25 are turned on and supplies +24Vpower...
  • Page 67 KX-P7100 4.4.15. Sensors Circuit The printer has three photo sensors: Registration sensor, Top sensor and Exit sensor. 4.4.15.1. Registration Sensor Circuit Registration sensor detects that the media is in front of the Registration Roller. When the registration sensor detects the media, nREGSEN signal changes from high level to low level.
  • Page 68 KX-P7100 4.4.15.3. Exit Sensor Circuit Exit sensor detects that the media is at the rear of the Fuser Roller ( Exit of the printer ). When the exit sensor detects the media, nEXITSEN signal changes from high level to low level. +5VSP is the power of the photo sensors. When the5VCTL signal at pin32...
  • Page 69 KX-P7100 4.4.16. Fan Control Circuit FANCTL: 1. Full Power Mode When FANCTL signal ( pin 6, IC11 ) is high, pin 7 of IC9 goes high, transistors Q15 and Q17 are turned on. This supplies +24V Power to Fan motor and rotates the Fan.
  • Page 70 KX-P7100 4.4.17. Internal Engine I / F (Control CPU - Engine CPU) The communication I/F signal between Control CPU and Engine CPU in main board is as follows. PPRDY: Printer Engine had been Powered On. nPRDY: Engine status is ready for communication.

  • Page 71: Timing Chart

    KX-P7100 4.5. Timing Chart 4.5.1. Printing Timing 4.5.2. Horizontal Timing ( Relationship between nHSYNC and Video Signal )
  • Page 72 KX-P7100 4.5.3. Engine I / F Communication...

  • Page 73: Schematic Diagram

    KX-P7100 5 Schematic Diagram 5.1. Main Control Board +24VIR +24V +5VSP Not Used PSAVE_E 005:G3 Not Used Not Used 002:B3 AD[0-7] 003:E4 AD[0] 1284SEL AD[1] 003:G2 AD[2] RIP_DO 003:C4 AD[3] nRDYLED 005:G4 AD[4] nPURGE 003:G2 AD[5] RIP_DI 003:G2 AD[6] RIP_SK...
  • Page 74 KX-P7100 002:B3 PPRDY RA22 002:B3 nPRINT nPRINT_E 005:G3 RA22 002:B3 CXD_E 005:G4 RA22 Not Used Not Used 002:B3 CCLK CCLK_E RA39 RA37 005:G4 VCC1 VSS3 MD[0] RA22 MD[1] 002:B3 nCBSY nCBSY_E MD[2] 005:G3 MD[3] RA38 RA40 VCC2 VSS2 MD[4] MD[5]...
  • Page 75 KX-P7100 Not Used RA46 nSELECTIN Not Used RESET nAUTOFD 001:B4 nSTROBE nINT nUSTB RA44 BUSY PERR SELECT nFAULT RIP_DO 001:B3 RIP_DI 001:B3 VCC1 GND3 RA45 GND1 VCC3 RIP_SK 001:B3 RIP_CS 001:B3 nACK VCC2 GND2 004:D4 CEND[0-7] RA20 CEND[7] BI[7] AI[7]...
  • Page 76 KX-P7100 Not Used Not Used (The line is directly connected by pattern.) Not Used IEEE1284 PARALLEL nCSTROBEZ CCEND0 CCEND1 CCEND2 CCEND3 CCEND4 CCEND5 CCEND6 RA26 CCEND7 003:B3 nCACK nCACKZ 003:B3 CENBUSY CBUSY 003:B3 CPEND CCPE 003:B3 CSLCT CSEL 003:B3 nCFAULT...
  • Page 77 KX-P7100 +24VIR +24V +24V +24V 24VGND 24VGND 5VGND nFCTL Not Used IC13 nFSRCTL Not Used 2.2k 005:D4 EEPCS 005:D4 EEPCLK 005:D3 +24VIR 2.2k EEPDO TEST 005:F5 EEPDI DOOR +24V 24VGND +24VIR IC12 nDOPEN TEST THERMISTOR 390K 1% THERMISTOR 003:F4 PUNIT...
  • Page 78 KX-P7100 +24V R172 R166 R167 1/10W 1/10W 2.2k 2.2k CN12 P/U_SOL PUSOL_CTL 005:F5 PUCTL +24VGND +24VIR R194 R195 C172 IC14 C108 +24V 0.1u 0.1u R173 Not Used VREF R169 R151 R168 005:G3 005:F5 I1_CTL 1/10W 1/10W I0_CTL 003:F4 003:F4 SMNA SMNB 2.2k...

  • Page 79: Sensors, Indicator And Relay Boards

    KX-P7100 5.2. Sensors, Indicator and Relay Boards JAM SENSOR(REGISTRATION,TOP) TONER EMPTY SENSOR(R) REG-TOP CN401 TE_R CN451 5VGND 5VGND TE_ROUT PI451 nREGSEN 5VGND nTOPSEN PJUP1055Z-a PJUP1055Z_d JAM SENSOR(EXIT) RESISTOR RELAY PCB a EXIT CN402 +5VSP R409 5VGND RESIST_GND 5VGND 1/2W 500M...
  • Page 80 KX-P7100...

  • Page 81: Explanation Of Connectors

    KX-P7100 6 Explanation of Connectors 6.1. Main Board 6.1.1. CN1 ( to Front Panel ) CN1 (to Front Panel) Pin No. Signal Name Description Direction ---- nKEY Key Input nLEDO 0 Ready LED (Green) nLEDO 1 Error LED (Red) nLEDO 2...
  • Page 82 KX-P7100 6.1.4. CN4 ( USB I / F Connector ) CN4 (USB Interface Connector) Pin No. Signal Name Description Direction VBUS N.C. USB Differential Data - IN / OUT USB Differential Data + IN / OUT GND(FG) GND(FG) 6.1.5. CN6 ( Centronics Parallel I / F ) CN6 (Centronics Parallel I/F) Pin No.
  • Page 83 KX-P7100 6.1.6. CN7 ( PSU-MAIN Connector ) CN7 (PSU-MAIN Connector) Pin No. Signal Name Description Direction nFCTL Fuser ON/OFF Control 5VGND GND for +5V +5V from Power Source (PSU) 24VGND GND for +24V 24VGND GND for +24V +24V +24V from Power Source (PSU)
  • Page 84 KX-P7100 6.1.10. CN11 ( Polygon Motor ) CN11 (Polygon Motor) Pin No. Signal Name Description Direction nSNRCLK Scanner Clock nSNRLD Scanner Lock nSNRCTL Scanner Control 24VGND ------ +24V ------ 6.1.11. CN12 ( Pickup Solenoid ) CN12 (Pickup Solenoid) Pin No.
  • Page 85 KX-P7100 6.1.15. CN16 ( EXIT Sensor ) CN16 (EXIT Sensor) Pin No. Signal Name Description Direction +5VSP +5V (Power Save Controlled) 5VGND 5VGND nEXITSEN EXIT Sensor 6.1.16. CN18 ( MAIN Motor ) CN18 (Main Motor) Pin No. Signal Name Description...

  • Page 86: Registration & Paper Top Sensor Board

    KX-P7100 6.2. Registration & Paper Top Sensor Board 6.2.1. CN401 ( REG-TOP Sensor ) CN401 (REG-TOP Sensor) Pin No. Signal Name Description Direction nTOPSEN TOP Sensor nREGSEN Registration Sensor 5VGND 5VGND 6.3. Paper Exit / ADU Paper Jam Sensor Board 6.3.1.

  • Page 87: Toner Empty Sensor Board

    KX-P7100 6.6. Toner Empty Sensor Board 6.6.1. CN451 ( Toner Empty Sensor ) CN451 (Toner Empty Sensor) Pin No. Signal Name Description Direction TE_ROUT Toner Empty Sensor +5VGND...

  • Page 88: Component Reference Guide

    KX-P7100 7 Component Reference Guide 7.1. IC1 ( Main Control CPU ) IC1 (Main Control CPU) Symbol In/Out Function Symbol In/Out Function N.C. N.C. I/F selector signal Address8 Power save signal Address9 (not used) Address10 LED (Ready) contorl signal N.C.

  • Page 89: Ic3 ( Gdi Asic )

    KX-P7100 7.3. IC3 ( GDI ASIC ) IC3 (GDI ASIC) Symbol In/Out Function Symbol In/Out Function PEND Paper End signal nRAS1 Memory row address strobe BUSY Busy signal nRAS0A Bank 0 chip select signal nACK Acknowledge signal nRAS0B N.C. nSTROB...

  • Page 90: Ic5 ( Dram )

    KX-P7100 7.4. IC5 ( DRAM ) IC5 (DRAM) Symbol In/Out Function Symbol In/Out Function VCC1 VSS1 In/Out Data1 Address4 In/Out Data2 Address5 In/Out Data3 Address6 Address7 In/Out Data4 VCC2 Address8 In/Out Data5 Address9 In/Out Data6 Output enable signal In/Out Data7...

  • Page 91: Ic6 ( Asic )

    KX-P7100 7.5. IC6 ( ASIC ) IC6 (ASIC) Symbol In/Out Function Symbol In/Out Function Crystal Connect (12MHz) SM1A Stepping Motor CH1 Phase A CLKR CLKI Crystal Connect (12MHz) SM1B Stepping Motor CH1 Phase B CLKOUT 12MHz Clock Output nTRST SM0A...

  • Page 92: Ic8 ( Usb Chip )

    KX-P7100 7.6. IC8 ( USB Chip ) IC8 (USB Chip) Symbol In/Out Function Symbol In/Out Function N.C. N.C. RESET System Reset signal N.C. nSTROBE Strobe signal N.C. BUSY Busy signal System clock Parallel data0 N.C. Parallel data1 N.C. Parallel data2 N.C.

  • Page 93: Ic11 ( Engine Control Cpu )

    KX-P7100 7.9. IC11 ( Engine Control CPU ) IC11 (Engine Control CPU) Symbol In/Out Function Symbol In/Out Function (not used) EEPROM data in INT27 Door open signal (not used) Thermistor voltage detect N.C. TESEN Resist seneor signal Scanner motor control signal N.C.

  • Page 94: Ic14 ( Motor Driver Ic )

    KX-P7100 7.11. IC14 ( Motor driver IC ) IC14 (Motor driver IC) Symbol In/Out Function Symbol In/Out Function OUT3 Phase signal (nB) output VREF N.C. Voltage detector (A) N.C. Output current ratio control Motor current output (B) signal OUT4 Phase signal (B) output...

  • Page 95: Preventative Maintenance

    KX-P7100 8 Preventative Maintenance 8.1. General The preventative maintenance ( PM ) schedule is every 2,000 impressions. Adhering to this schedule will ensure maximum print quality and reduce machine downtime and service calls. 8.2. Recommended Tools The following tools are recommended.
  • Page 96 KX-P7100 When print is faded or indicators show the following status, the replacement of a supply is needed.

  • Page 97: Service Maintenance

    KX-P7100 8.4.2. Service Maintenance 8.4.2.1. Maintenance Cycle The following table shows the service cycle of the main parts. Item Average Life Service (x 1000 pages) Fuser Unit 90,000 pages *1 Transfer Roller 90,000 pages *1 Retard Pad Assembly 90,000 pages...

  • Page 98: Troubleshooting

    KX-P7100 9 Troubleshooting 9.1. Self-Diagnostic Indicators The printer indicates error conditions using the ON, OFF and blinking states of the Ready, Error and Toner/Drum unit LED indicators. The printer status and error code are displayed on the printer status display on the host computer screen. The Status Display software must be installed on the computer.
  • Page 99 KX-P7100 9.1.3. User Error...
  • Page 100 KX-P7100 9.1.4. Call for Service...

  • Page 101: Initial Troubleshooting Flowchart

    KX-P7100 9.2. Initial Troubleshooting Flowchart...

  • Page 102: No Operation

    KX-P7100 9.3. No Operation...

  • Page 103: Print Quality

    KX-P7100 9.4. Print Quality 9.4.1. White Vertical Line in Print...
  • Page 104 KX-P7100 9.4.2. Blank Print...
  • Page 105 KX-P7100 9.4.3. Dark Vertical Line in Print...
  • Page 106 KX-P7100 9.4.4. Dark Horizontal Line in Print...
  • Page 107 KX-P7100 9.4.5. Dirty Background...
  • Page 108 KX-P7100 9.4.6. All-black Print...
  • Page 109 KX-P7100 9.4.7. Light Print...
  • Page 110 KX-P7100 9.4.8. Ghosting...
  • Page 111 KX-P7100 9.4.9. Black or White Dots...
  • Page 112 KX-P7100 9.4.10. Toner Spatter...

  • Page 113: Paper Jam

    KX-P7100 9.5. Paper Jam 9.5.1. Media Tray Empty or Misfeed...

  • Page 114: Jam At A

    KX-P7100 9.5.2. Jam at A...

  • Page 115: Jam At B

    KX-P7100 9.5.3. Jam at B...

  • Page 116: Jam At C

    KX-P7100 9.5.4. Jam at C...
  • Page 117 KX-P7100 9.5.5. Jam at D, E...

  • Page 118: Call Service

    KX-P7100 9.6. Call Service 9.6.1.
  • Page 119 KX-P7100...
  • Page 120 KX-P7100 9.6.2.
  • Page 121 KX-P7100 9.6.3.
  • Page 122 KX-P7100 9.6.4.
  • Page 123 KX-P7100 9.6.5.
  • Page 124 KX-P7100 9.6.6. 9.6.7.
  • Page 125 KX-P7100 9.6.8. 9.6.9.

  • Page 126: Replacement Parts List With Lubrication Guide

    KX-P7100 10 Replacement Parts List with Lubrication Guide 10.1. Exterior...
  • Page 127 KX-P7100 Ref. No. Part No. Part Name & Description PJYK2P7100M Front Cover Assembly PJHRB0043Z Paper Guide (R) PJHRB0044Z Paper Guide (L) PJHRB0045Z Guide Rack PJHRB0046Z Paper Guide Pinion Gear PJBAB0011Z Hook PJYKP7100M Pinch Roller Holder Assembly PJDSB0034Z Pinch Roller Spring...

  • Page 128: Right Side Parts

    KX-P7100 10.2. Right Side Parts Ref. No. Part No. Part Name & Description Remarks PJZC2P7100M Gear Support Bracket PJWMP7100M Registration Solenoid Assembly PJDSB0038Z Registration Lever Spring PJUSB0025Z Earth Spring PJHRB0327Z Clamp PJZH1P7100M Fuser Drive Gear Bracket PJDGB0051Z Fuser Drive Gear...
  • Page 129 KX-P7100 Ref. No. Part No. Part Name & Description Remarks PJDGB0052Z ADU Drive Gear PJDGB0070Z Registration Drive Gear PJDGB0072Z Idle Gear Z19 PJDGB0071Z Double Teeth Gear PJDGB0073Z Idle Gear Z14 PJDGB0028Z Ratchet Gear PJDGB0043Z Registration Arm Gear PJDGB0029Z Planetary Gear Z18...
  • Page 130 KX-P7100 10.2.2. Pickup Roller and Paper Feed Roller Ref. No. Part No. Part Name & Description PJWM1P7100M Pickup Solenoid Assembly PJZE1P7100M Pickup Lever Assembly PJDSB0038Z Pickup Spring PJDGB0040Z Pickup Internal Gear PJDGB0029Z Planetary Gear PJDGB0041Z Pickup Arm Gear PJDGB0027Z Ratchet Gear...
  • Page 131 KX-P7100 10.2.3. Motor and Drive Gear Unit Ref. No. Part No. Part Name & Description PJMDB0032Z Motor Bracket PJJQP5566Z Motor PJZHP7100M Drive Gear Bracket Assembly PJDGB0048Z OPC Gear ( A ) PJDGB0049Z Fuser Gear PJDGB0056Z Registration Gear ( A )

  • Page 132: Left Side Parts

    KX-P7100 10.3. Left Side Parts ( Power Supply Unit and High Voltage Board ) Ref. No. Part No. Part Name & Description Remarks PJWSP7100M Power Lead Wire Assembly PJMCB0042Z Inlet Bracket PJLP1S58Z Power Supply Board Complete Non-Repairable PJMCB0004Z Enclosure Cover...

  • Page 133: Board )

    KX-P7100 10.4. Rear and Top Side Parts Ref. No. Part No. Part Name & Description Remarks PJZC1P7100M Upper Exit Roller Holder Cover Assembly PJDSB0016Z Ratchet Spring PJDPB0001Z Upper Exit Roller Solenoid with Plunger PJDGB0024Z Upper Exit Roller Drive Gear Z21...
  • Page 134 KX-P7100 10.4.1. Fuser Unit...
  • Page 135 KX-P7100 Ref. No. Part No. Part Name & Description PJDFB0122Z Fuser Drive Shaft PJRTS10Z Thermistor PJZCP7100M Heat Roller Holder Assembly PJMDB0019Z Fuser Earth PJZC3P7100M Side Fuser Cover Assembly PJDGB0023Z Fuser Gear Z24 PJDGB0024Z Fuser Gear Z21 PJDGB0022Z Lower Exit Roller Gear...

  • Page 136: Bottom Side Parts

    KX-P7100 10.5. Bottom Side Parts Ref. No. Part No. Part Name & Description Remarks PJUAB0024Z Bottom Stay PJZUP7100M Jam Release Pan with Knob PJNW317Z Plastic Ring PJDFB0009Z A/D Roller Shaft PJDSB0041Z Pinch Roller Spring...
  • Page 137 KX-P7100 Ref. No. Part No. Part Name & Description Remarks PJDRB0018Z Auto Duplex Pinch Roller PJMDB0020Z ADU Pinch Roller Plate PJUAB0005Z ADU Registration Roller Plate PJDJ05041RZ Bushing PJDRB0014Z ADU Registration Roller Shaft PJDJ05011CZ Bushing PJDGB0030Z A/D Unit Joint Gear PJDSB0017Z...

  • Page 138: Mechanical Base

    KX-P7100 10.6. Mechanical Base Ref. No. Part No. Part Name & Description PJHRB0324Z Transfer Roller Holder PJDSB0040Z Transfer Spring PJDJB0020Z U Bearing PJHRB0038Z Pressure Arm (L) PJHRB0037Z Pressure Arm (R) PJUSB0011Z Earth Plate PJUSB0008Z Transfer Roll Bias Plate PJDRB0024Z Transfer Roller...

  • Page 139: Media Tray ( Paper Cassette )

    KX-P7100 10.7. Media Tray ( Paper Cassette ) Ref. No. Part No. Part Name & Description PJZEP7100M Retard Pad Assembly PJMDB0026Z Media Lifter PJHSB0007Z Friction Pad PJDSB0021Z Retard Pad Spring PJHRB0031Z Media Side Guide (R) PJHRB0032Z Media Side Guide (L)

  • Page 140: Packing

    KX-P7100 10.8. Packing Ref. No. Part No. Part Name & Description Remarks PJWRP7100M CD-ROM PJQQB0002Z Setup Guide ( English ) PJPNB0026Z Pad for CD-ROM PFJA1030Z Power Cord PJPNB0024Z Top Pad (L) PJPNB0025Z Top Pad (R) PJPNB0031Z Bottom Pad (R) PJPNB0030Z...

  • Page 141: Main Control Board

    KX-P7100 10.9. Main Control Board Component Side View...
  • Page 142 KX-P7100 Parts Side View...
  • Page 143 KX-P7100 10.9.1. ICs Ref. No. Part No. Part Name & Description PJWIP7100M IC (Main Control CPU/ROM) TC74HCUV04FT IC (Standard Logic) D6004 IC (GDI-ASIC) IS41C16100K5 IC (DRAM) PJVANG0022Z IC (KME-ASIC) GL107AS IC (USB Bridge) PJVINJM2903M IC (Comparator) IC10 PST3642UR IC (Reset)
  • Page 144 KX-P7100 Ref. No. Part No. Part Name & Description C112 ECUX1H332KBV Ceramic / 3300p / 50V C114-C117 ECUV1H102KBV Ceramic / 1000p / 50V C119-C121 ECUV1H102KBV Ceramic / 1000p / 50V C144/C145 ECUV1C104ZFV Ceramic / 0.1 / 16V C147-C149 ECJ1VF1H104Z Ceramic / 0.1 / 50V...
  • Page 145 KX-P7100 Ref. No. Part No. Part Name & Description R121 ERJ3GSYJ183V Chip Resistor / 18k (1/16W) R122 ERJ12YJ120H Chip Resistor / 12 (1/2W) R123 ERX1SGR47P Metal / 0.47 (1W) R124 ERJ12YJ120H Chip Resistor / 12 (1/2W) R129/R130 ERJ3GSYJ100V Chip Resistor / 10 (1/16W)
  • Page 146 KX-P7100 10.9.5. Connectors Ref. No. Part No. Part Name & Description 06FE-BT-VK-N Connector (for Indicator Board) PJJP03AK01Z Connector (for 5V Interlock Switch) PJJP252Z Connector (for LSU) PJJS04EZ03Z Connector (for USB Interface) PJJS714Z Connector (for Centronics Interface) B7B-XH-A Connector (for Power Supply)

  • Page 147: Registration & Paper Top Detection Sensor Board

    KX-P7100 10.10. Registration & Paper Top Detection Sensor Board All resistor values are in OHMs. Ref. No. Part No. Part Name & Description R401/R404 ERDS2TJ181T Resistor / 180 (1/4W) PI402/PI405 LTH301-07P1M Photo-interrupter CN401 05FE-ST-VK-N Connector PJUP1055Z-A Bare PCB 10.11. Paper Exit / ADU Paper Jam Sensor Board Resistor values is in OHMs.

  • Page 148: Toner Empty Sensor Board

    KX-P7100 Ref. No. Part No. Part Name & Description PJUP1055Z-C Bare PCB 10.13. Toner Empty Sensor Board Ref. No. Part No. Part Name & Description PI451 B3HA00000029 Photo Transistor CN451 6-173981-2 Connector PJUP1055Z-D Bare PCB 10.14. Relay Board (A) Resistor value is in OHMs.

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