Brother MFC9700 - 5 ] Print-Image Related

VI - 21
[ 5 ] Print-image related
If the received or sent image has any problem, first make a copy with the machine.
If the copied image is normal, the problem may be due to the remote terminal; if it is abnormal,
proceed to the following checks:
Trouble Action to be taken
(1) Completely blank At the scanner
Check the following components:
- CCD flat cable
- CCD unit
- Main PCB
At the printer side
l Clean the high-voltage contacts for the developer roller on
the drum unit, main cover, and high-voltage power supply
PCB. (Contacts
S in the illustration given on page VI-28)
l Clean the grounding contacts on the drum unit, main cover,
and high-voltage power supply PCB. (Contacts
Q in the
illustration given on page VI-28)
l Replace the toner cartridge.
l Replace the drum unit.
l Check the connection of the laser flat cable on the main PCB.
l Replace the main PCB.
l Replace the laser unit.
l Replace the high-voltage power supply PCB.
(2) All black At the scanner
Check the following components:
- CCD flat cable
- CCD unit
- Main PCB
At the printer side
l Clean the high-voltage contacts for the grid and charger on
the drum unit, main cover, and high-voltage power supply
PCB. (Contacts
T and R in the illustration given on page VI-
28)
l Clean the charger (corona wires) itself.
l Check the connection of the laser flat cable on the main PCB.
l Replace the drum unit.
l Replace the high-voltage power supply PCB.
l Replace the main PCB.