Scanner System: Defective Acs - Konica Minolta bizhub C450 Service Manual

Field Service Ver. 1.0 Mar. 2005
18.3.11

Scanner System: defective ACS

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
Auto Color Level
Adjustment
(User Setting)
1
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Check Item
The problem persists even after
the ACS Determination Level
Adjust function has been
changed.
18. Image quality problem
Colored Area of Original
AA
Black-and-White Area of Original
4036fs4037c0
Result
YES Change the original loading direc-
tion. Make manual settings
according to the type of original.
(If the original contains a colored
area in one of its corners, the
machine may fail to properly
detect the colored area.)
Action
389