Ir System: Abnormal Image - Minolta CF2002 Service Manual

(13) IR System: abnormal image

4004T010AB
<Troubleshooting Procedure>
Section Step
Cable 1
connecting
IR and printer
Connection cable 2
between control-
ler
I/F board and
Image
Control Board
(PWB-F)
Image 3
Processing
Board
(PWB-C)
Image 4
Processing Inter-
face Board
(PWB-B)
Image Control 5
Board
(PWB-F)
Test Print 6
(Tech.Rep.Mode)
Image 7
Processing
Board
(PWB-C)
<Typical Faulty Images>
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
4011T053AA
Check Item
Connector is connected prop-
erly with no pins bent.
Connector is connected prop-
erly with no pins bent.
Connectors on the Image
Processing Board are con-
nected properly.
Connectors on the Image
Processing Board are con-
nected properly.
Data on previous page is
mixed with data on current
page.
The problem is eliminated as
checked with the image on a
test pattern produced.
The problem is eliminated
after the interface connection
cable has been changed.
T-87
ABCDE
ABCDE Data on previous page
ABCDE
CF
Data on current page
4011T063AA
Result
NO Reconnect.
NO Reconnect.
NO Reconnect.
NO Reconnect.
NO Reinstall expanded mem-
ory.
NO Change interface connec-
tion cable.
NO Change Image Process-
ing Board.
Action