Canon FY8-23AV-000 manual General Timing Chart

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APPENDIX

A. General Timing Chart

PC400/FC200 General Timing Chart (A4, 2 copies)

Sequence

Copyboard

1Main motor (M1) Document position sensor

2(Q902)

Copyboard drive solenoid

3(SL2)

4Scanning lamp (LA1-LA8)

5Fixing heater (H1)

6Primary AC bias

7Primary DC bias

8Developing AC bias

9Developing DC bias

10Transfer

11Pick-up sensor (Q131)

12Registration solenoid (SL1)

13Delivery sensor (Q801)

1 sec

Power switch		Copy paper inserted
Power switch		Copy paper inserted
ON		Copy paper inserted

STBY	INTR			COPY			LSTR	STBY
	CBRV	STOP	CBFW	CBRV	CBFW	CBRV	STOP
	-240V		-625V
	-400V		-130 to -550V
	*	**		*			*

*Cleaning mode.

**Measurement mode.

A-1

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Contents Service Handbook Copyright 1998 Canon INC Contents Troubleshooting Malfunctions Self Diagnosis Page Periodically Replaced Parts DurablesPeriodical Servicing 1D Temperature/Humidity Specifications Storing Sealed Cartridges2D Transportation Storing and Handling Unsealed Cartridges Reference Pre-Checks Image Adjustment Basic ProcedurePoints to Note Glass MechanicalElectrical Adjusting the Intensity VR6042B PC400/FC200 Adjusting the AE Mechanism VR602, VR603 JP607 JP605 JP604 Control panel PCB Screwdriver Standards and Adjustments Making Initial Checks Site EnvironmentChecking the Documents Checking the Copy Paper Checking the Feeding AssemblyChecking the Lens Array for Dirt Checking the Transfer Charging RollerImage Troubleshooting Others Image Troubleshooting Samples of Image Faults YES Troubleshooting by Image FaultCopy is foggy overall Back Replace the cartridge Is the problem corrected? Back of the copy is soiled Copy has white spots cross feed directionCopy has faulty fixing Copy has a blurred image Copy is foggy cross feed directionCopy has poor sharpness focus Copy is solid black Copy is blankImage Troubleshooting Self diagnosis PC400/FC200 Troubleshooting MalfunctionsCopyboard Does the copying operation start AC power is absent Scanning lamp fails to go on Pick-up failsCopyboard fails to move Main motor fails to rotatePaper feeding normally At time of jamFixing heater fails to operate Copy Paper Jams Separation/Feeding Assembly Pick-Up AssemblyFixing/Delivery Assembly Feeding Faults Double FeedingWrinkles Sensors and Solenoids Arrangement and Functions of Electrical PartsSwitches Lamp, Heater, Motor, and Others Printed Circuit Board PCB DC Controller/DC Power Supply PCB Variable Resistors VR and Check Pins by PCB PC400/FC200 Control Panel PCBSelf Diagnosis Self Diagnosis General Timing Chart PC420/430/FC220 General Timing Chart A4, 2 copies Signals Signals/Abbreviations ListAbbreviations General Circuit Diagram PC420/430/FC220 General Circuit Diagram Special Tools Table Solvents/Oils Table LTR/A4 LGL SpecificationsNVD Prepared by This publication is printed on 70% reprocessed paper