Brother FAX-8650P service manual Separator roller and its related sections

Trouble			Action to be taken
(9) Faulty image registration	At the printer side
(Leading edge of image	•	Instruct the user not to load paper exceeding the limit mark
starts too late on paper)		on the multi-purpose sheet feeder.
	•	Instruct the user to use the recommended types of paper.
	•	Replace the multi-purpose sheet feeder.
	•	Replace the gear drive unit.
(10) Image distortion or	In communications
improper image alignment	Check the following components:
		- Error code displayed. (Refer to Section 1, ”ERROR
			INDICATION" in this chapter.)
		-	NCU PCB
		-	Main PCB
	At the scanner
	Check the following components:
		- Separator roller and its related sections
		- Document feed rollers and their related gears
		- Scanner motor and its harness
		-	Main PCB
	At the printer side
	•	Check that the laser unit is secured with the screws without
		looseness.
	•	Check the connection of the polygon motor flat cable on the
		main PCB.
	•	Replace the laser unit.

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