Muratec MFX-2500 Field Engineering Manual page 255

(7) Blank Streaks or Bands
Section Step
Is the PC Drum dirty with foreign
1
matter?
Is the image transfer current
2
terminal intact?
Is the Image Transfer Roller
3
dented or scratched?
Printer
engine Are the Fusing Rollers scratched
4
or dirty?
5 Is the PH Unit window glass dirty?
Is the light path between PH and
6
PC dirty with dust?
Is the Shading Sheet under the
1
Size cover dirty?
Do the connections from CCD Þ
Scanner
PCB AFE Þ PCB Scanner Þ
2
PCB Main Þ PCB Connect Þ
PWB-A remain intact?
(8) Void Areas
Section Step
Does the image get better when a
1 copy is made with new paper
loaded?
Is the Image Transfer Roller
2
installed correctly?
Printer
Is the Image Transfer Roller
engine 3
dented or scratched?
Is the image transfer current
4
terminal intact?
Are the Fusing Rollers scratched
5
or deformed?
Is the Contact glass or FBS glass
1
dirty?
Do the connections from CCD Þ
Scanner
PCB AFE Þ PCB Scanner Þ
2
PCB Main Þ PCB Connect Þ
PWB-A remain intact?
Check Item
Check Item
4-41
Result Action
YES Clean the PC Drum.
Check and change as
YES
necessary.
Change the Image Transfer
YES
Roller.
Clean or change the Fusing
YES
Rollers.
YES Clean the window glass.
YES Remove dust.
NO Change the I/C.
YES Clean or change.
Change PCB AFE, PCB
Scanner, PCB Main, PCB
YES
Connect or PWB-A, in that
order.
NO Reconnect.
Result Action
Change the paper. Instruct the
YES
user on the storage of paper.
NO Install correctly.
Change the Image Transfer
YES
Roller.
Check and change as
NO
necessary.
YES Change the Fusing Rollers.
NO Change the I/C.
YES Clean or change.
Change PCB AFE, PCB
Scanner, PCB Main, PCB
YES
Connect or PWB-A, in that
order.
NO Reconnect.