6 ] Pc-Driven Or Video Capture-Driven Printing - Brother MFC9700 Service Manual

Trouble
(20) Fading (black to white)
(21) Gray background
(22) Toner specks

[ 6 ] PC-driven or video capture-driven printing

Trouble
(1) PC-driven printing is
impossible.
(2) Video capture-driven printing
is impossible
(3) Video printing is impossible.
At the printer side
Replace the toner cartridge.
l
Replace the high-voltage power supply PCB.
l
At the printer side
Instruct the user to use paper of the recommended weight
l
(less than 36 lb./m
Clean the toner sensors (LED and light-receiver).
l
Check the toner sensor harnesses.
l
Replace the toner cartridge.
l
Replace the drum unit.
l
Replace the high-voltage power supply PCB.
l
At the printer side
Instruct the user to use paper of the recommended weight
l
(less than 36 lb./m
Replace the toner cartridge.
l
Replace the drum unit.
l
• Interface with the host computer
• PC interface cable
• Main PCB
• Centronics interface
• VC connector PCB
• Main PCB
• Centronics interface
• VC connector PCB
• Main PCB
VI - 27
Action to be taken
2
).
2
).
Check: