Technical Bulletin PAGE: 2/2
Model: Model CH-C1 (Office/Pro)
Solution
Lower the PTR bias for the second side.
CH-C1 Pro:
- The user can use the IMSS settings to lower the bias.
- If the symptom occurs in full-color mode, use [PTR Bias:FC:Side2: Custom Paper 001
to 100] (2-814-001 to 100).
- If the symptom occurs in B/W mode, use [PTR Bias:BW:Side2: Custom Paper 001 to
100] (2-812-001 to 100).
Note: When using plain paper, the setting can be changed using 2-652-012 to 028 (for
each paper thickness and type) and 2-642-012 to 028 (for each paper thickness
and type).
CH-C1 Office:
A customer engineer must perform the following adjustment:
- If the symptom occurs in full-color mode, lower the value of SP2-652-001 to 008 (for
each paper thickness).
- If the symptom occurs in B/W mode, lower the value of SP2-642-001 to 008 (for each
paper thickness).
- Adjust the value between the [default value] and [default value - 20μA].
Note: The density of solid images may be decreased if the bias is too low (especially
high-density solid image areas). In addition, other image problems may occur.