Panasonic KX-P7100 manual Eeprom Control Circuit

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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.
EEPDO:	This is the serial data from CPU ( IC11 ) to EEPROM ( IC12 ).
EEPDI:	This is the serial data from EEPROM ( IC12 ) to CPU ( IC11 ).

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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 Exposure Development / CleaningPrint Process ChargeTransfer FusingMedia Tray Paper FeedLaser Scan Unit Exposure Operation TheoryLaser Beam Lens Collimator LensPolygon Scanner Cylindrical Lens and 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 DisassemblyTop Cover Right, Left and Top CoversRight Cover Left CoverRelay Board B Laser Scanning Unit LSUHigh Voltage Board High Voltage Board and Power Supply UnitPower Supply Unit Disassembly Power Supply UnitIndicator Board and Toner Empty Sensor Board Main Controller Board and Fuser Drive GearMain Controller Board Fuser Drive Gear Fan MotorGear Support Bracket, Motor and Drive Gear Unit Gear Support BracketDrive Gear Unit and Motor Drive Gear Unit Disassembly Upper Exit Roller Holder Disassembly Upper Exit Roller HolderUpper 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 Solenoids Control Circuit Pickup Control Solenoid Drive CircuitRegistration Solenoid Driver Circuit Switchback Solenoid Drive Control Circuit Sensors Circuit Registration Sensor 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 2. CN2 OPC Drum Unit Interlock SW 3. CN3 LSU Control SignalsMain Board 1. CN1 to Front Panel5. CN6 Centronics Parallel I / F 4. CN4 USB I / F Connector8. CN9 Thermistor 6. CN7 PSU-MAIN Connector9. CN10 HVU-MAIN Connector 7. CN8 Door + 24V Interlock SWCN13 Registration Solenoid CN14 Switchback Solenoid10. CN11 Polygon Motor CN12 Pickup SolenoidCN20 Toner Empty Sensor 15. CN16 Exit SensorCN18 Main Motor CN19 FAN ControlIndicator Board Registration & Paper Top Sensor 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 AsicIC10 Reset IC IC8 USB ChipIC9 Comparators 10. IC12 Eeprom IC11 Engine Control CPU12. IC15 Inverters 11. IC14 Motor driver ICGeneral Recommended CleaningMaintenance Tables User MaintenanceKX-P7100 Recommended Lubrication Service Maintenance Maintenance CycleCounter Reset 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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