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KX-P7100
CN451 (Toner Empty Sensor)
1
87
148
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6.6. Toner
Empty
Sensor
Board
6.6.1. CN451
(
Toner
Empty
Sensor
)
Pin No.
Signal Name
Description
Direction
1
2
TE_ROUT
+5VGND
Toner Empty Sensor
GND
---
CN451 (Toner Empty Sensor)
OUT
87
KX-P7100
Contents
Main
Page
CONTENTS
Page Page
Page
Page
Page
Page
1.1.4.2. Margins and Print Area
Page
Page
Page
Page
Page
Page
1.7. Print Process
Page
1.8. Paper Feed
1.9. Laser Scan Unit ( Exposure )
1.9.1. Operation Theory
1.9.2. Laser Beam
Page
1.10. Fuser Unit
1.11. Paper Ejection and Paper Switchback
2 Installation, Setup, and Repacking
2.1. Installation Requirements
2.1.1. Environment
2.1.2. Ventilation Requirements
2.2. Setup
Page
2.3. Repacking
Page
Page
Page
Page
3.2. Right, Left and Top Covers
Page
3.5. High Voltage Board and Power Supply Unit
3.5.1. High Voltage Board
3.5.2. Power Supply Unit
3.5.3. Power Supply Unit Disassembly
3.6. Indicator Board and Toner Empty Sensor Board
3.7. Main Controller Board and Fuser Drive Gear
3.7.1. Main Controll er Board
3.7.2. Fuser Drive Gear
3.8. Fan Motor
3.9. Gear Support Bracket, Motor and Drive Gear Unit
3.9.1. Gear Support Bracket
3.9.2. Drive Gear Unit and Motor
Page
3.10. Upper Exit Roller Holder
3.10.1. Upper Exit Roller Holder
3.10.1.1. Upper Exit Roller Holder Disassembly
3.11. Fuser Unit
3.11.1. Fuser Unit Disassembly
3.11.2. Heat Lamp
3.11.3. Heat Roller
3.11.4. Thermostat
Page
3.12. Pickup, Paper Feed, Registration and Transfer Rollers
3.12.1. Pickup Roller and Pickup Solenoid
Page
Page
3.14. Auto Duplex Unit, ADU Registration Roller and ADU Pinch Roller
3.14.1. Auto Duplex Unit ( ADU )
3.14.1.1. Auto Duplex Pinch and Registration Rollers
Page
Page
Page
4 Electronic Circuit Description and Diagrams
KX-P7100
4.1. Block Diagram
IC4
IC12
4.2. Connection Diagram
IEEE1284
Model No.KX-P7100
Parallel USB
Connection Diagram
Page
4.4. Main Control Board
4.4.1. Main Control CPU
4.4.2. GDI ASIC ( IC3 )
Page
4.4.5. ASIC ( KME )
Page
Page
Page
Note: Motor Current will be cut off in case of OFF condition above.
4.4.9. Laser Scannin g Unit Control Circuit
4.4.10. Fuser Temperature Control Circuit
4.4.11. High Voltage Control Circuit
Page
4.4.13. Safety Interlock SW
Page
Page
Page
Page
4.4.16. Fan Control Circuit
4.4.17. Internal Engine I / F (Control CPU - Engine CPU)
Page
Page
5 Schematic Diagram
1/6
KX-P7100
5.1. Main Control Board
KX-P7100 2/6
KX-P7100 3/6
3.3V
KX-P7100 4/6
KX-P7100 5/6
GND<+24V>
FG
POWER<+5V> POWER<+24V> POWER<+24VIR>POWER<+5VLD> POWER<+5VSP> GND<+5V>
KX-P7100 6/6
5.2. Sensors, Indicator and Relay Boards
1/1
(Sensors, Indicator and Relay Boards)
Page
6 Explanation of Connectors
6.1. Main Board
CN2 (OPC Drum Unit Interlock Switch)
CN1 (to Front Panel)
6.1.1. CN1 ( to Front Panel )
CN4 (USB Interface Connector)
6.1.5. CN6 ( Centronics Parallel I/F)
CN6 (Centronics Parallel I/F)
6.1.6. CN7 ( PSU-MAIN Connec tor )
CN7 (PSU-MAIN Connector)
6.1.7. CN8 ( Door + 24V Interlock SW )
CN9 (Thermistor)
CN8 (Door +24V Interlock SW)
6.1.8. CN9 ( THERMISTOR )
CN11 (Polygon Motor)
---
------ OUT
+24VGND Switchback Solenoid Control
---
CN16 (EXIT Sensor)
GND IN
+5VGND Toner Empty Sensor
6.1.16. CN18 ( MAINMotor )
CN18 (Main Motor)
CN401 (REG-TOP Sensor)
6.3. Paper Exit / ADU Paper Jam Sensor Board
6.3.1. CN402 ( EXIT Sensor )
Pin No. Signal Name Description Direction 1 2 3 4
nEXITSEN 5VGND 5VGND +5VSP
CN451 (Toner Empty Sensor)
7 Component Reference Guide
7.1. IC1 ( Main Control CPU )
7.2. IC2 ( Inverters )
7.3. IC3 ( GDI ASIC )
7.4. IC5 ( DRAM )
7.5. IC6 ( ASIC )
7.6. IC8 ( USB Chip )
7.7. IC9 ( Comparators )
Out
IC9 (Comparators) Pin No. Symbol In/Out Function 1 2 3 4 5 6 7 8
A OUTPUT A -INPUT A +INPUT
7.9. IC11 ( Engine Control CPU )
7.10. IC12 ( EEPROM )
IC12 (EEPROM) Pin No. Symbol In/Out Function 1 2 3 4 5 6 7 8
CS SK DI DO
TEST NC VCC
7.11. IC14 ( Motor driver IC )
7.12. IC15 ( Inverters )
8 Preventative Maintenance
8.1. General
8.2. Recommended Tools 8.3. Recommended Cleaning
8.4. Maintenance Tables
8.4.1. User Mainten ance
Page
8.4.2. Service Mainten ance 8.4.2.1. Maintenance Cycle
8.4.2.2. Lubrication
8.4.2.3. Recommended Lubrication
8.4.3. Counter Reset
9 Troubleshooting
9.1. Self-Diagnostic Indicators
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10.2. Right Side Parts
10.2.1. Main Controller Board Connector
10.2.2. Pickup Roller and Paper Feed Roller
10.2.3. Motor and DriveGear Unit
10.3. Left Side Parts ( Power Supply Unit and High Voltage Board )
10.4. Rear and Top Side Parts
Page
Page
Page
Page
10.6. Mechanical Base
10.7. Media Tray ( Paper Cassette )
10.8. Packing
Page
Page
10.9.1. ICs
10.9.2. Capacitors
All capacitor values are in microfarads unless otherwise noted.
10.9.3. Resistors
10.9.4. Transistor and Diodes
10.9.5. Connectors
10.9.6. Others
10.10. Registration & Paper Top Detection Sensor Board
10.11. Paper Exit / ADU Paper Jam Sensor Board
Resistor values is in OHMs.
10.12. Indicator Board
10.13. Toner Empty Sensor Board
10.14. Relay Board (A)
Resistor value is in OHMs.
10.15. Relay Board (B)
Resistor values are in OHMs.