Image Lacks At The Corner Of The Trailing Edge (Soilage In Main Scan Direction (Cd) - Konica Minolta AccurioPress C2070 Troubleshooting Manual

1.2.23 Image lacks at the corner of the trailing edge (Soilage in
main scan direction (CD))
(1) Symptom
Image lacks at the trailing edge of the paper.
At the same time, the soilage to the CD direction the same as the lacking part occurs after one
cycle of the intermediate transfer belt. (approx. 862mm).
(2) Cause
Depending on the paper type (thin paper, fine paper etc), the paper behavior becomes unstable
after entering to the fusing unit. If the trailing edge of the paper flips and vibrates slightly and
contact with the intermediate transfer belt, the contacting part appears as white part on image.
Since the electric charge gathered at the paper edge is added to the toner attaching to the
intermediate transfer belt, it sticks on the belt more firmly on the belt and is not cleaned by the
intermediate transfer belt cleaner. It is retransferred on the next image then appears as soilage
to CD direction.
(3) Solution
Increase the margin at the trailing edge
The symptom tends to occur when the margin (blank area) at the trailing edge is narrow. So
enlarge the margin.
(a) Move the writing position
Set the smaller value for the lead edge trailing edge.
[Utility]→[Administrator Setting]→[System Setting]→[Expert Adjustment]→[Printer
Adjustment]
→[Restart Timing Adjustment]
Note
Depending on the image, margin at the lead edge becomes too small causing feed problem
or image quality problem.
(b) Set to erase the trailing edge (the image at the last of the trailing edge is not printed.)
1. Change the DipSW1-0 from 0 (Default) to 1 to show expert adjustment.
[Service]→[System Setting]→[Software DIPSW]→DIPSW1-0:1
2. Change the trailing edge erase amount.
Machine tab→[Paper Setting]→[Change Set]→[Expert Adj.]
→[Rear Edge Erase Quantity]→ Recommendation +50
Table of contents
KONICA MINOLTA Confidential
872.4mm (Intermediate transfer belt cycle: 861.8mm)
80.3m
431.8m
- 57 -
80.3m
280m