Brother International IntelliFax-3550 Service Manual - Page 152

Refer to ERROR, At the scanner

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Trouble Action to be taken (9) Faulty image registration (Leading edge of image starts too late on paper) At the printer side • Instruct the user not to load paper exceeding the limit mark 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 improper image alignment In communications 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 relay PCB. • Replace the laser unit. VI - 18

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VI –
18
Trouble
Action to be taken
(9)
Faulty image registration
(Leading edge of image starts
too late on paper)
At the printer side
•
Instruct the user not to load paper exceeding the limit
mark 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 improper
image alignment
In communications
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 relay PCB.
•
Replace the laser unit.