Kyocera FS-1010 service manual Bias board circuit block diagram

Page 78

(4) Bias board

The bias board contains the developing bias output circuit, registration sensor, paper empty sensor, and the cassette switch. It also provides a liaison connection to the high voltage board, power supply, and the toner sensor.

 

 

Bias board (KP-884)

 

 

+5 V

 

 

Engine board

Toner

TONER

 

 

TONER

sensor

 

 

 

 

 

+5 V

 

 

 

 

+24 V

5 V DC

 

 

 

 

24 V DC

 

 

 

 

SENPOW

Power supply

 

 

 

 

board

 

Regist-

 

 

High voltage

 

 

RESIT

board

 

ration

 

 

 

 

 

 

sensor

 

 

+5 V

+5 V

 

Casette

 

+24 V

5 V DC

+24 V

 

 

24 V DC

 

switch

 

 

 

 

SWIN

 

 

 

 

 

 

Paper

 

PAPERN

 

 

sensor

 

 

 

 

 

 

RTHVDR, HVISEL

 

 

 

 

PSEL1, PSEL2

 

 

 

 

FANL

 

FAN

 

 

FANH

 

 

 

 

HEATN, ZCROSS

 

 

 

 

EXTIN, THERM

 

 

+24 V

 

 

275 V DC + AC

 

 

HVCLK

 

 

Developing bias

 

Developing

 

output circuit

 

 

 

 

 

roller

 

 

 

 

Figure 4-3-9 Bias board circuit block diagram

FS-1010

4-27

Page 77 Page 79
Image 78
Page 77 Page 79
Contents Service Manual Revision history Safety precautions Safety warnings and precautions Installation Precautions Precautions for Maintenance Miscellaneous Appendix a O d u c t I n f o r m a t i o n ChapterContents Printer specifications Specifications EngineWeight and dimensions ControllerPower requirements Environmental requirementsNames of parts Name of partsLaser notice Safety informationSafety information Laser safety Laser caution label on the scanner unit1 Caution labels Ozone concentration Important note on the interface connectorsCdrh regulations U.S.A Optional equipmentEnvironmental requirements Environmental conditionsClearance 2 ClearancesPlaces to avoid Removing the printer About the toner container Toner containerToner container handling Toner container storage Installation / O p e r a t i o n Unpacking Unpacking Unpacking and inspectionInstalling the printer Installing the toner container2 Shaking the toner container 4 Installing the toner container 5 Locking the toner container Dimm specifications Expanding memoryMinimum memory requirements 6 Handling Dimm Installing the Dimm 7 Removing side cover8 Inserting the Dimm Testing the expansion memory Installing the memory card CompactFlash 9 Removing the option interface slot cover10 installing the memory card Installing the network interface card 11 installing the memory cardUsing the operator panel Operator panel1 Operator panel function Remote operation panel 2 Remote operation panel 2 Remote operation panel functionMaintenance/Adjustments Downloading the firmware from the parallel interface Maintenance/Adjustments Life expectancy of modules1 Life expectancy of modules When to replace the toner container 2 Toner containerToner container replacement 1 Releasing Lock levers #1 and #2Toner saver mode EcoPrint 3 Disposal of the old toner containerCleaning the printer 4 Removing the process unitCleaning the registration roller 6 Cleaning the main charger wireUpdating the firmware Firmware program data formatDownloading the firmware from the parallel interface Downloading the firmware from the memory card Downloading errors Download errorsE r a t i o n O v e r v i e w Chapter Contents Electrophotographic system Electrophotographic cycleProcess unit mechanism 2 Process unit mechanismMain charging Photo conductive drum 3 Photo conductive drumCharging the drum 4 Charging the drumExposure 5 ExposureLaser scanner unit 6 Laser scanner unitDrum surface potential 7 Drum surface potentialDevelopment 8 DevelopmentTransfer 9 TransferFusing 10 FusingFuser unit mechanism 11 Fuser unit mechanismCleaning 12 Drum cleaning and erasing static chargePaper feeding system 1 Paper feeding pathPaper feed control 2 Paper feed controlPaper feeding mechanism 3 Paper feeding mechanismElectrical control system Electrical parts layout2 Main board circuit block diagram Operation of circuit Boards Main board3 Engine board circuit block diagram Engine boardEraser lamp control circuit 4 Eraser lamp control circuitHeater lamp control circuit 5 heater lamp control circuitFS-1010 6 heater lamp turn-on variations Polygon motor control circuit 7 Polygon motor control circuitPower supply board 8 Power supply board circuit block diagram9 Bias board circuit block diagram Bias board10 High voltage board circuit block diagram High voltage boardInterlock switch 11 Interlock switchS a s s e m b l y Removing the power supply board and high voltage board Before starting disassembly General instructionsScrew/hardware Disassembly Removing the process unit2 Removing the top cover/face-down output tray Removing the right cover 3 Removing the right cover Removing the left coverRemoving the feed roller 5 Removing the feed rollerRemoving the MP tray feed roller 6 Removing the MP feed clutch7 Removing the MP feed unit Removing the transfer roller 9 Removing the transfer roller10 Removing the engine board Removing the main board 11 Removing the controller box with main board12 Removing the main board Removing the power supply board and high voltage board 13 Removing the power supply board and high voltage boardRemoving the bias board 14 Removing the bias boardRemoving the main motor and drive unit 15 Removing the main motorRemoving the cord cover 17 Removing the clutches 18 Removing the drive unit Removing and splitting the fuser unit 19 Removing the fuser unit20 Splitting the fuser unit Removing the separators 21 Removing the separatorsRemoving the heater lamp 22 Removing the heater lampRemoving the heat roller 23 Removing the heat R bush and heat L bush24 Removing the heat roller Removing the thermistor 25 Removing the thermistorRemoving the thermal cutout 26 Removing the thermal cutoutRemoving the press roller 27 Removing the press rollerRemoving the laser scanner unit and the eraser lamp 28 Removing the LSU plate27 Removing the laser scanner unit Removing the eraser lamp Removing the main charger unit Troubleshooting Contents Error messages 1 Indicators and control keysMessages Normal messages Remote Operation Panel displayMaintenance messages Open the printer and clear the paper Printer’s memory is running low Continue due to complex data Service error indications Main motor errorLaser scanner unit Polygon motor error Call service 4000nnnnnnYes Replace main board KP-888. See End Turn power switch on Laser scanner unit Pin photo diode error Call service 4200nnnnnnYes End Replace engine board KP-882. See Eraser lamp error Call service 5300nnnnnnFuser unit error Call service 6000nnnnnnCall service 7980nnnnnn F010 Controller checksum error F020 Controller RAM read/write error10 F030 Controller system error 11 F040 Communication error12 F050 Engine ROM checksum error Background Print quality problemsBlack horizontal 6 Black vertical Unsharpness Gray Streaks Dirt on the top edge or back of the paperCompletely blank printout All-black printout ABC ABC Black horizontal streaksBlack vertical streaks Unsharpness Gray background Dirt on the top edge or back of the paper Repetitive defects gauge 2 Repetitive defects gaugeCorrecting a paper jam Jam at the face-down and face-up traysJam at the paper cassette 4 Jam at the paper cassette Jam inside the printerAppendix a D i a g r a m s Appendix a Contents Timing charts Option paper cassette feeding, two A4 size papersOption paper cassette feeding, two legal size papers OutpenOption paper cassette feeding, two letter size papers MP tray feeding, two A4 size papers MpfsolMP tray feeding, two legal size papers MP tray feeding, two letter size papers Wiring diagram Boardfeed 794KPG e Appendix B S t a t u sAppendix B Contents Printing the service status StatusGo key Service information on the status Details of service informationService information Top margin Inches+1/100 inches Frpo L1/L2 Engine parameter setting Hexadecimal, 32 bytes 64 digits Appendix C I n t e r f a c e Appendix C Contents Selecting the parallel interface mode Parallel interfaceTerminal Signal Parallel interface pin assignmentParallel interface signals Signal MeaningUSB interface USB interface pin assignmentChanging the serial interface configuration Serial interface OptionalFS-1010 Serial interface signals RS-232C interface voltage levelsRS-422A interface voltage levels Connector configurations RS-232C For computers with a DB-9 connectorRS-232C For computers with a DB-25 connector RS-422A ProtocolKyocera Mita Corporation Kyocera Mita AMERICA, INC
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