Canon FY8-23AV-000 manual Copy has white spots cross feed direction, Back of the copy is soiled

CHAPTER 3 IMAGE TROUBLESHOOTING

12. The copy has white spots (cross feed direction).

Cause	Step	Checks	YES/NO	Remedies
Copy paper	1	Is the copy paper of a type rec-	NO	Try recommended paper;
		ommended by Canon?		if the results are good,
				advise the user to use
				recommended paper.
	2	Try copy paper fresh out of	YES	The copy paper may be
		package.		moist; advise the user to
		Is the problem corrected?		store it wrapped.
Copyboard rail	3	Is the problem noted at the same	YES	Check the copyboard rail
		position on all copies?		for foreign matter.
Scanning lamp,			NO	Check the scanning lamp
Developing bias				for flickering, and check
				the presence/absence of a
				developing bias.

13. The back of the copy is soiled.

Cause	Step	Checks	YES/NO		Remedies
	1	Press the Copy Start key, and	NO	Go to step 3.
		switch the copier OFF while the
		copy paper is moving through
		the feeding assembly.
		Is the back of the copy soiled?
Transfer charging	2	Is the transfer charging assem-	YES	1.	Clean the transfer
assembly		bly soiled?			charging assembly.
				2.	Clean the registration
					roller.
				3.	Clean the pick-up guide
					plate.
				4.	Check the cartridge for
					leakage of toner.
Feeding assembly	3	Is the feeding assembly soiled?	YES	Clean the feeding
				assembly.
Delivery roller			NO	Clean the delivery roller.

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