Solution; Ir System: White Lines In Fd, White Bands In Fd, Colored Lines In Fd, And Colored Bands In Fd - Konica Minolta bizhub C350 Service Manual

Image quality problem
4.3

Solution

4.3.1 IR System: white lines in FD, white bands in FD, colored lines in FD, and
colored bands in FD
A. Typical Faulty Images
White lines in FD
4036fs4021c0
B. Troubleshooting Procedure
Step Section
1 Original
2 Original Cover
Original Glass
3
Shading sheet
4
Mirror, lens, Exposure
Lamp, and reflectors
5
Machine Adjust →
Scanner Area
6
→ Left Image (Tech.
Rep. Mode)
Scanner
7
4-56
bizhub C350 Field Service Ver2.0 Sep. 2004
White bands in FD
4036fs4022c0
Check Item
Original is damaged or dirty.
Original Pad is dirty.
Original Glass is dirty.
Shading sheet is dirty.
Mirror is dirty
Lens is dirty
Exposure Lamp is dirty
Reflectors are dirty
The adjustment value for Left
Image falls within the specified
range.
The white lines/bands or colored
lines/bands are blurry.
Color lines in FD
4036fs4023c0
Result
YES Change original.
YES Clean.
YES Wipe the surface clean with
a soft cloth.
YES Wipe the surface clean with
a soft cloth.
YES Clean.
YES Clean.
YES Clean.
YES Clean.
NO Readjust.
YES Change Scanner Assy.
Change CCD Unit.
Color bands in FD
4036fs4024c0
Action