Canon FY8-23AV-000 manual Signals/Abbreviations List

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APPENDIX

B. Signals/Abbreviations List

What follows below is a list of signals and abbreviations used in the chapters of the manual and circuit diagrams.

The abbreviations within parentheses represent analog signals, which cannot be expressed in terms of ‘1’ or ‘0’.

1. Signals

 

ACBTP

AC BIAS TIMING PULSE COMMAND

[AE]

AE SIGNAL

CBSD

COPYBOARD DRIVE SOLENOID DRIVE COMMAND

DCBPWM

DC BIAS CONTROL COMMAND

DCTPWM

TRANSFER DC BIAS CONTROL COMMAND

DGT0

OSCILLATION SIGNAL 0

DGT1

OSCILLATION SIGNAL 1

DGT2

OSCILLATION SIGNAL 2

HTRD

FIXING HEATER DRIVE COMMAND

HVPAC

PRIMARY AC BIAS ON COMMAND

HVPDC

PRIMARY DC BIAS ON COMMAND

HVPHO

PRIMARY DC BIAS HIGH OUTPUT COMMAND

HVTDC

TRANSFER DC BIAS ON COMMAND

KEYR0

RETURN SIGNAL 0

KEYR1

RETURN SIGNAL 1

LAPWM

LAMP DRIVE COMMAND

[LID]

LAMP INTENSITY DETECTION SIGNAL

MMCLK

MAIN MOTOR CLOCK PULSE SIGNAL

MMD

MAIN MOTOR DRIVE COMMAND

PWOFF

POWER OFF COMMAND

PWSON

POWER SWITCH ON SIGNAL

PUSD

PICK-UP ROLLER SOLENOID DRIVE COMMAND

RELAYED

RELAY DRIVE COMMAND

RGSD

REGISTRATION SOLENOID DRIVE COMMAND

[TH1]

THERMISTOR SIGNAL 1

TREV

TRANSFER REVERSE DC BIAS ON COMMAND

VPEAK

VOLTAGE PEAK DETECT SIGNAL

ZXDP

ZERO CROSS DETECTION SIGNAL

A-3

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Contents Service Handbook Copyright 1998 Canon INC Contents Troubleshooting Malfunctions Self Diagnosis Page Periodical Servicing Periodically Replaced PartsDurables 2D Transportation 1D Temperature/Humidity SpecificationsStoring Sealed Cartridges 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 Checking the Documents Making Initial ChecksSite Environment Checking the Lens Array for Dirt Checking the Feeding AssemblyChecking the Transfer Charging Roller Checking the Copy PaperImage 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 poor sharpness focus Copy has a blurred imageCopy is foggy cross feed direction 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 rotateFixing heater fails to operate Paper feeding normallyAt time of jam Copy Paper Jams Separation/Feeding Assembly Pick-Up AssemblyFixing/Delivery Assembly Wrinkles Feeding FaultsDouble Feeding 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 PCBPC400/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

FY8-23AV-000 specifications

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