Canon FY8-13EX-000, NP6218 service manual E064, E202 keys on control panel invalidated, 10-67

CHAPTER 10 TROUBLESHOOTING

8.	E064
	Cause	Step	Checks	Results	Action
Wire		1	Turn off and on the power switch,	YES	Check the harness
			and set ‘1’ as the copy count. Is		between the DC
			E064 indicated after copying		controller PCB and the
			operation?		composite power supply
					PCB.
Composite		2	Set ‘1’ as the copy count, and	YES	Go through steps 3
power supply			press the Copy Start key once		through 6; then, replace
PCB			again. Is E064 indicated after		the composite power
			copying operation?		supply PCB.
Transfer charg-		3	Is a fault noted in the transfer	YES	Replace the transfer
ing assembly,			charging assembly/transfer roller		corona assembly/transfer
Transfer			or contacts?		roller.
charging roller
Primary		4	Detach the drum cartridge, and	YES	Replace the drum
charging roller			check the primary charging roller.		cartridge.
			Is a fault noted in the primary
			charging roller or the contacts?
High-voltage		5	Detach the rear cover, and check	YES	Replace the high-voltage
cable			the high-voltage cable. Is a		terminal.
			scratch or crack found in the high-
			voltage cable?

9. E202 (keys on control panel invalidated)

Cause Step Checks

1Is the scanner at home position when E202 is indicated?

Scanner home	Is the scanner home position
position sensor	sensor (PS1) normal? (See
(PS1)	descriptions on how to check
	photointerrupters.)
DC controller
PCB check

Results	Action
NO	See “The scanner fails to
	move forward/
	in reverse.”
NO	Check the wiring
	between the DC
	controller PCB and PS1;
	if normal, replace PS1.
YES	Replace the DC
	controller PCB.

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-67