Canon NP6320 Service Manual

Also see for NP6320: Service manual

Contents

Canon NP6320 Service Manual Manual pdf 249 page image

CHAPTER 10 TROUBLESHOOTINGCOPYRIGHT © 1999 CANON INC. CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-71E802Main causeScanner home position sensor (Q3),scanner motor (M2), power supplyPCB, or DC controller PCBLens home position sensor (Q4), orDC controller PCBLamp driver PCB orScanning lampDC controller PCBDC controller PCBPower supply PCB orDC controller PCBADF controller PCB, power supplyPCB, or DC controller PCBSorter controller PCB or DC controllerPCBMain switch or DC controller PCB.Fault criteria1. If the scanner is not at the homeposition (SCHP = 0) when theCopy Start key is pressed.If the scanner does not return to thehome position (SCHP remains 0)within 15 sec (A4 size) after it startsto reverse.2. If the scanner is in the home posi-tion (SCHP = 1) when the CopyStart key is pressed.• If the scanner does not leave thehome position (SCHP remains 1)within 1.5 sec after it starts to ad-vance.• If the scanner does not return to thehome position (SCHP remains 0)within 1 second after it leaves thehome position (SCHP = 0).• If the lens does not return to thehome position (LHP remains 0)within 2.5 sec.• If LHP remains 1 for at least 4 sec.• At the lamp ON timing, LAON=1 isnot true.• At the lamp OFF timing, LAON=0 isnot true.The communication between micro-processor (master) and microprocessor(slave) is interrupted.If the data in EEPROM has been re-written more than specified.If the main frequency is out of the al-lowed range.If ADF remains 0 for 12 sec orlonger.• If the copier does not communicatewith the sorter for at least 12 sec.• If the SORTER STANDBY signaldoes not return within 35 sec after theBCR signal is outputted.The DC controller PCB detects the au-tomatic shut-off mechanism does notwork.E400E500E220E245E261E210E202E240Code displayedDownload Service Manual And Resetter Printer at http://printer1.blogspot.com