Specifications

4-42
(9) Smear on Back
Section Step Check Item Result Action
1 Is the Image Transfer Roller dirty? YES Clean or change.
2
Has toner spilled from the I/C
inside of the copier?
YES
Clean the interior and change
I/C.
Printer
engine
3 Are the Fusing Rollers dirty? YES
Clean or change the Fusing
Rollers.
(10) Uneven Image Density
Section Step Check Item Result Action
1
Is the Image Transfer Roller dirty
or deteriorated?
YES
Clean or change the Image
Transfer Roller.
YES
Change the paper. Instruct the
user on the storage of paper.
Printer
engine
2
Does the image get better when a
copy is made with new paper
loaded?
NO Change the I/C or PWB-A.
1
Are the mirrors, lens, Contact
glass or FBS glass dirty with
foreign matter?
YES Clean or change.
2
Is the Shading Sheet under the
Size cover dirty?
YES Clean or change.
3
Is the Exposure Lamp dirty or
deteriorated?
YES Clean or change.
YES
Change PCB AFE, PCB
Scanner, PCB Main, PCB
Connect or PWB-A, in that
order.
Scanner
4
Do the connections from CCD
Þ
PCB AFE
Þ
PCB Scanner
Þ
PCB Main
Þ
PCB Connect
Þ
PWB-A remain intact?
NO Reconnect.
(11) Gradation Reproduction Failure
Section Step Check Item Result Action
YES
Change the paper. Instruct the
user on the storage of paper.
Printer
engine
1
Does the image get better when a
copy is made with new paper
loaded?
NO Change PWB-A.
1
Is the Shading Sheet under the
Size cover dirty?
YES Clean or change.
2
Is the Contact glass or FBS glass
dirty?
YES Clean or change.
YES
Change PCB AFE, PCB
Scanner, PCB Main, PCB
Connect or PWB-A, in that
order.
Scanner
3
Do the connections from CCD
Þ
PCB AFE
Þ
PCB Scanner
Þ
PCB Main
Þ
PCB Connect
Þ
PWB-A remain intact?
NO Reconnect.