Panasonic KX-P7100 manual Electronic Circuit Description and Diagrams, Block Diagram

Page 49

KX-P7100

4 Electronic Circuit Description and Diagrams

4.1.Block Diagram

USB

Parallel

Power Supply Unit					Fuser Unit
					Heat Lamp	Thermister
			Fuser Driver			Thermister
						Thermal
	+24V					Fuse
	+24V
Rectifier		High Voltage Supply			Thermostat
Noise		High Voltage Supply			Thermostat
Filter		+24V IR		High Voltage		TH
Thermistor		nCHGCTL		High Voltage
		nCHGCTL		Circuit	DEV BIAS
				Circuit

		nDBCTL					Toner
Voltage Control	+5V	nTRCTL					Box
	+5V
					Grid Voltage	OPC
Circuit				TE_LED	Grid Voltage	OPC
Voltage		nDB		TE_LED	Charger	Drum
Voltage		nDB			Charger	Drum
Detector		nTR			Current
Detector
	Front Door				Transfer (+, - 2 way)		Developer
	Front Door				Transfer (+, - 2 way)		Developer
	Interlock Switch

Main Control Board

FAN

OPC Drum Unit

ERR

FANERR

D+

IC5

FAN

FAN

12MHz Clock

GND

+5V

+24V

+24V IR

Control Circuit

D-

USB-Parallel

+24V IR

FANPWR

Temp. Limit

FANCTL

OPC Drum Unit

Bridge Chip

Cotrol

Interlock Switch

Fuser

Signals

+5V

TH from Thermister

Control

IC6

53.84MHz

PUNIT

nFSRCTL

Circuit

HV Driver

Dot Clock

Signals

PV-EPP

Video Signals

13.46 MHz x 4

nVIDEO

APC

nHSYNC

Cotrol

Conv.

nHSYNC

+5V IR

Data

Signals

Controller

nVIDEO

LD

TTL

KME_ASIC

nLDENB

Driver

ASIC1

IC3

nADJUST

IC6

+24V IR

TTL

Parallel

Video

+24V IR

TH

SNRCLK

Print Data

I/F

I/F

DOPEN

IC11

nSNRCNT

Status Data

LSU

Decomp. Circuit

Arbitor

Exit

IC9

nSNRLK

Direct

CPU

+24V

Comm. nPRDY

PUCTL

DRAM2MB

x1MW16bit

TTL

DRAM Controller

MPUDMA

PPRDY

nTOP

nPURGE

Pick Driver

I/F

EEPCS

I/O

nPRINT

+24V

Pick Solenoid

REGCTL

nRST

Regist Driver

IC12

EEPCLK

+24V

Regist Solenoid

EEPROM

EEPDO

EXITCTL

Exit Driver

Centronics-USB

2 k bit

EEPDI

Data Selector

ROM

REF CTL

+24V IR

Switchback Solenoid

Serial

16KB

&

Comm.

DRAM RAS-CAS

nCS

Stepping2ch ControllerMotor

A

IC4Bipoler Driver

SXD

CH1

Generater

PSAVE

IC6

CPU

IC1

CCLK

RAM

SCK2

A

M

SO2

B

512 Byte

ROM 4KB

nSBSY

SI2

B

nCBSY

RAM

CH2

12MHz

128 BYTE

CXD

to USB Chip

IC6

RST

nRST

12MHz

12MHz Clock

IC6

IC10

LED Driver

RESET IC

nREGSEN

nTOPSEN

nEXITSEN

Top

Registration

Indicator Board

Sensor

Sensor

Toner Empty

(TE) Sensor

Ready Error

Toner/Process

Switch

Exit

TESEN

Sensor

49

Image 49

Contents KX-P7100 KX-P7100 Contents Printer SpecificationsPaper Interface, Options, Accessories, and Supplies Others About Media Margins and Print Area Printer Panel Indicators / Button IndicatorsKX-P7100 Front Side View Rear Side View Parts IdentificationComponent Layout and Paper Path Electrical Components and Sensor Boards Switches and Solenoids Print Process Development / CleaningCharge ExposureTransfer FusingMedia Tray Paper FeedOperation Theory Laser Scan Unit ExposureLaser Beam Polygon Scanner Collimator LensCylindrical Lens and Lens LensFuser Unit Normal Printing Mode Not Duplex Mode Paper Ejection and Paper SwitchbackSetup Installation RequirementsKX-P7100 Material Required RepackingKX-P7100 KX-P7100 Front and Rear Covers Removal and Replacement ProceduresRear Cover Disassembly Front Cover DisassemblyRight Cover Right, Left and Top CoversLeft Cover Top CoverRelay Board B Laser Scanning Unit LSUHigh Voltage Board High Voltage Board and Power Supply UnitPower Supply Unit Disassembly Power Supply UnitMain Controller Board and Fuser Drive Gear Indicator Board and Toner Empty Sensor BoardMain Controller Board Fuser Drive Gear Fan MotorGear Support Bracket Gear Support Bracket, Motor and Drive Gear UnitDrive Gear Unit and Motor Drive Gear Unit Disassembly Upper Exit Roller Holder Upper Exit Roller Holder DisassemblyUpper Exit Roller Holder Fuser Unit Disassembly Heat Roller Heat LampThermostat KX-P7100 Pickup Roller and Pickup Solenoid Pickup, Paper Feed, Registration and Transfer RollersRegistration Roller Paper Feed Roller / Registration RollerTransfer Roller Assembly Auto Duplex Pinch and Registration Rollers Auto Duplex Unit ADUAuto Duplex Disassembly KX-P7100 KX-P7100 Block Diagram Electronic Circuit Description and DiagramsConnection Diagram Connection DiagramPower Supply Main Control CPU Main Control BoardDram I/F GDI Asic IC3Dram USB ChipAsic KME Clock Reset Circuit Main Motor Drive Circuit Motor Current will be cut off in case of OFF condition above Laser Scanning Unit Control Circuit Fuser Temperature Control Circuit High Voltage Control Circuit Eeprom Control Circuit Safety Interlock SW Pickup Control Solenoid Drive Circuit Solenoids Control CircuitRegistration Solenoid Driver Circuit Switchback Solenoid Drive Control Circuit Registration Sensor Circuit Sensors CircuitTop Sensor Circuit Exit Sensor Circuit Fanctl Fan Control CircuitPprdy Internal Engine I / F Control CPU Engine CPUTiming Chart Engine I / F Communication Main Control Board POWER+5V GND+24V POWER+5VLD POWER+5V Usol Pusolctl Puctl Sensors, Indicator and Relay Boards KX-P7100 Main Board 3. CN3 LSU Control Signals1. CN1 to Front Panel 2. CN2 OPC Drum Unit Interlock SW5. CN6 Centronics Parallel I / F 4. CN4 USB I / F Connector9. CN10 HVU-MAIN Connector 6. CN7 PSU-MAIN Connector7. CN8 Door + 24V Interlock SW 8. CN9 Thermistor10. CN11 Polygon Motor CN14 Switchback SolenoidCN12 Pickup Solenoid CN13 Registration SolenoidCN18 Main Motor 15. CN16 Exit SensorCN19 FAN Control CN20 Toner Empty SensorRegistration & Paper Top Sensor Board Indicator BoardPaper Exit / ADU Paper Jam Sensor Board 1. CN451 Toner Empty Sensor Toner Empty Sensor BoardIC2 Inverters IC1 Main Control CPUMA9 IC3 GDI AsicVSS1 GND IC5 DramRsto OUT IC6 AsicIC8 USB Chip IC10 Reset ICIC9 Comparators 10. IC12 Eeprom IC11 Engine Control CPU12. IC15 Inverters 11. IC14 Motor driver ICMaintenance Tables Recommended CleaningUser Maintenance GeneralKX-P7100 Counter Reset Service Maintenance Maintenance CycleLubrication Recommended LubricationPrinter Status Paper Jam Self-Diagnostic IndicatorsUser Error Call for Service Initial Troubleshooting Flowchart No Operation White Vertical Line in Print Print QualityBlank Print Dark Vertical Line in Print Dark Horizontal Line in Print Dirty Background All-black Print Light Print Ghosting Black or White Dots Toner Spatter Media Tray Empty or Misfeed Paper JamJam at a Jam at B Jam at C Jam at D, E 1. E20 Call Service119 2. E30 3. E31 4. E32 5. E50 6. E54 7. E71 8. E73 9. E81 Exterior Replacement Parts List with Lubrication Guide127 128 Right Side PartsMain Controller Board Connector Pickup Roller and Paper Feed Roller Motor and Drive Gear Unit Left Side Parts Power Supply Unit and High Voltage Board Rear and Top Side Parts 134 Fuser Unit135 136 Bottom Side Parts137 Mechanical Base Media Tray Paper Cassette Packing Component Side View Parts Side View Capacitors ICsAll resistor values are in OHMs ResistorsTransistor and Diodes Others ConnectorsResistor values is in OHMs Registration & Paper Top Detection Sensor BoardResistor values are in OHMs Relay Board a

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