Olivetti d-Color MF 4003, Руководство по обслуживанию

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d-Color MF4003/MF3303
L TROUBLESHOOTING > 16. IMAGE QUALITY PROBLEM
L-153
16.3.23 ACS malfunction
Typical faulty images
The arrow in the exemplary image troubles indicates the paper feeding direction.
ABCDE
AA
ABCDE ABCDE ABCDE ABCDE
[1] [2]
[1] Color original section [2] Black and white original section
Troubleshooting procedure
Procedure Section Check item Result Action
1 Original Type Select [Copy] -> [Original Type] and change the setting,
and the image trouble is eliminated. YES Correct the setting.
2 Original direction Change the direction in which the original is placed. This
eliminates the trouble. YES Change the original direction.
3 Utility -> Auto Color Level
Adjustment Select [Utility] -> [Utility] -> [System Settings] -> [Auto
Color Level Adjustment] and the image trouble is
eliminated. YES Readjust.
NO • Change the original direction.
• Make the setting according to
the type of original. (If the
original contains a colored
area at its corner, colored
area detection NG may
result.)
16.3.24 Abnormal image
Typical faulty images
The arrow in the exemplary image troubles indicates the paper feeding direction.
[1] [2]
ABCDE ABCDE ABCDE
[1] Data on the previous page [2] Data on the next page
Troubleshooting procedure
Step Section Check item Result Action
1 When original glass is
being used
When DF is being used:
1st side None of the terminal pins of the connection cable
between the CIS module and the base board (CN6) is
bent and a positive connection is made. NO Reconnect the connector.
2 When original glass is
being used
When DF is being used:
1st side Replace the connection cable between the CIS module
and the base board. This eliminates the trouble. YES Replace the connection cable.
NO • Replace the CIS module.
• Replace the base board.
3 When DF is being used:
2nd side Faulty connector connection the high DF CIS module
and base board (CN5). YES Reconnect the connector.
4 When DF is being used:
2nd side Replace the flat cable between the DF CIS module and
the base board. This eliminates the trouble. YES Replace the flat cable.
5 Service Mode -> Self-
diagnostic Select [Service Mode] -> [State Confirmation] -> [Self-
diag.(Full)] and perform the function. Then, "NG"
appears. YES Take relevant action
corresponding to the check item in
which "NG" has appeared.
NO • Replace the DF CIS module
assy.
• Replace the base board.
Y119930-3 Service Manual