Kyocera FS-1010 service manual Power supply board circuit block diagram

Page 77

(3) Power supply board

The power supply board provides the AC power input and DC power and outputs. The high voltage bias generator circuit is mounted on a separate board. A simplified schematic diagram is shown below.

Power supply unit

AC	Power	Current
input	switch	fuse
	(SW1)	(F1)

Noise filter circuit

Transformer

(T1)

		24 V DC	24 V DC
		rectifier/	24 V DC
		rectifier/	shutoff
		smooth-	shutoff
		smooth-	circuit
		ing circuit	circuit
		ing circuit
FET	Switching/
FET	Over
(Q1)	current		5 V DC
	detection		rectifier/
	circuit		smooth-
			ing circuit
	Photo-	Over voltage
	coupler	detection
	(PC1)	circuit

Exit	EXITN
sensor
	+24 V COM
	SLEEP
	FAN
	Cooling fan
	+24 V COM
	+5 V

PGND, SGND

THERM

Thermistor

Heater lamp

Triac

(TRC1)

Thermal cutout

			+24 V
	Photo-	Transistor	ZCROSS
	coupler	Transistor	ZCROSS
	coupler	(Q8)
	(PC3)	(Q8)
	(PC3)	Zero cross signal
		Zero cross signal
		detection circuit

	Photo-		HEAT
	Triac		HEAT
	Triac
	(PC2)

Figure 4-3-8 Power supply board circuit block diagram

FS-1010

4-26

Image 77

Contents Service Manual Revision history Safety precautions Safety warnings and precautions Installation Precautions Precautions for Maintenance Miscellaneous Appendix a Chapter O d u c t I n f o r m a t i o nContents Specifications Engine Printer specificationsController Weight and dimensionsEnvironmental requirements Power requirementsName of parts Names of partsSafety information Laser safety Safety informationLaser notice Laser caution label on the scanner unit1 Caution labels Cdrh regulations U.S.A Important note on the interface connectorsOzone concentration Optional equipmentEnvironmental conditions Environmental requirements2 Clearances ClearancePlaces to avoid Removing the printer Toner container handling About the toner containerToner container Toner container storage Installation / O p e r a t i o n Unpacking Unpacking and inspection UnpackingInstalling the toner container Installing the printer2 Shaking the toner container 4 Installing the toner container 5 Locking the toner container Minimum memory requirements Dimm specificationsExpanding memory 6 Handling Dimm 7 Removing side cover Installing the Dimm8 Inserting the Dimm Testing the expansion memory 9 Removing the option interface slot cover Installing the memory card CompactFlash10 installing the memory card 11 installing the memory card Installing the network interface card1 Operator panel function Using the operator panelOperator panel 2 Remote operation panel 2 Remote operation panel function Remote operation panelMaintenance/Adjustments Downloading the firmware from the parallel interface 1 Life expectancy of modules Maintenance/AdjustmentsLife expectancy of modules 2 Toner container When to replace the toner container1 Releasing Lock levers #1 and #2 Toner container replacement3 Disposal of the old toner container Toner saver mode EcoPrint4 Removing the process unit Cleaning the printer6 Cleaning the main charger wire Cleaning the registration rollerFirmware program data format Updating the firmwareDownloading the firmware from the parallel interface Downloading the firmware from the memory card Download errors Downloading errorsE r a t i o n O v e r v i e w Chapter Contents Electrophotographic cycle Electrophotographic system2 Process unit mechanism Process unit mechanism3 Photo conductive drum Main charging Photo conductive drum4 Charging the drum Charging the drum5 Exposure Exposure6 Laser scanner unit Laser scanner unit7 Drum surface potential Drum surface potential8 Development Development9 Transfer Transfer10 Fusing Fusing11 Fuser unit mechanism Fuser unit mechanism12 Drum cleaning and erasing static charge Cleaning1 Paper feeding path Paper feeding system2 Paper feed control Paper feed control3 Paper feeding mechanism Paper feeding mechanismElectrical parts layout Electrical control systemOperation of circuit Boards Main board 2 Main board circuit block diagramEngine board 3 Engine board circuit block diagram4 Eraser lamp control circuit Eraser lamp control circuit5 heater lamp control circuit Heater lamp control circuitFS-1010 6 heater lamp turn-on variations 7 Polygon motor control circuit Polygon motor control circuit8 Power supply board circuit block diagram Power supply boardBias board 9 Bias board circuit block diagramHigh voltage board 10 High voltage board circuit block diagram11 Interlock switch Interlock switchS a s s e m b l y Removing the power supply board and high voltage board Screw/hardware Before starting disassemblyGeneral instructions Removing the process unit Disassembly2 Removing the top cover/face-down output tray 3 Removing the right cover Removing the left cover Removing the right cover5 Removing the feed roller Removing the feed roller6 Removing the MP feed clutch Removing the MP tray feed roller7 Removing the MP feed unit 9 Removing the transfer roller Removing the transfer roller10 Removing the engine board 11 Removing the controller box with main board Removing the main board12 Removing the main board 13 Removing the power supply board and high voltage board Removing the power supply board and high voltage board14 Removing the bias board Removing the bias board15 Removing the main motor Removing the main motor and drive unitRemoving the cord cover 17 Removing the clutches 18 Removing the drive unit 19 Removing the fuser unit Removing and splitting the fuser unit20 Splitting the fuser unit 21 Removing the separators Removing the separators22 Removing the heater lamp Removing the heater lamp23 Removing the heat R bush and heat L bush Removing the heat roller24 Removing the heat roller 25 Removing the thermistor Removing the thermistor26 Removing the thermal cutout Removing the thermal cutout27 Removing the press roller Removing the press roller28 Removing the LSU plate Removing the laser scanner unit and the eraser lamp27 Removing the laser scanner unit Removing the eraser lamp Removing the main charger unit Troubleshooting Contents 1 Indicators and control keys Error messagesMessages Remote Operation Panel display Normal messagesMaintenance messages Open the printer and clear the paper Printer’s memory is running low Continue due to complex data Main motor error Service error indicationsCall service 4000nnnnnn Laser scanner unit Polygon motor errorYes Replace main board KP-888. See End Turn power switch on Call service 4200nnnnnn Laser scanner unit Pin photo diode errorYes End Replace engine board KP-882. See Call service 5300nnnnnn Eraser lamp errorCall service 6000nnnnnn Fuser unit errorCall service 7980nnnnnn F020 Controller RAM read/write error F010 Controller checksum error12 F050 Engine ROM checksum error 10 F030 Controller system error11 F040 Communication error Black horizontal 6 Black vertical Unsharpness Gray Streaks Print quality problemsBackground Dirt on the top edge or back of the paperCompletely blank printout All-black printout ABC Black horizontal streaks ABCBlack vertical streaks Unsharpness Gray background Dirt on the top edge or back of the paper 2 Repetitive defects gauge Repetitive defects gaugeJam at the face-down and face-up trays Correcting a paper jam4 Jam at the paper cassette Jam inside the printer Jam at the paper cassetteAppendix a D i a g r a m s Appendix a Contents Option paper cassette feeding, two A4 size papers Timing chartsOutpen Option paper cassette feeding, two legal size papersOption paper cassette feeding, two letter size papers Mpfsol MP tray feeding, two A4 size papersMP tray feeding, two legal size papers MP tray feeding, two letter size papers Boardfeed 794KP Wiring diagramAppendix B S t a t u s G eAppendix B Contents Go key Printing the service statusStatus Details of service information Service information on the statusService 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 Parallel interface Selecting the parallel interface modeParallel interface pin assignment Terminal SignalSignal Meaning Parallel interface signalsUSB interface pin assignment USB interfaceSerial interface Optional Changing the serial interface configurationFS-1010 RS-422A interface voltage levels Serial interface signalsRS-232C interface voltage levels RS-232C For computers with a DB-25 connector Connector configurationsRS-232C For computers with a DB-9 connector Protocol RS-422AKyocera Mita Corporation Kyocera Mita AMERICA, INC

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