Background Voltage Margin; Transfer Output Fine Adjustment - Konica Minolta bizhub C250P Service Manual

17. Jig Soft
17.7.3

Background Voltage Margin

Functions • To adjust the highlight portion (fog level) to the target reproduction level by making an
auxiliary manual fine-adjustment of γ of each color after Gradation Adjust.
Use • Use when a foggy background occurs due to a printer problem
Adjustment
"0" (-5 to +5)
Range
Adjustment To make the background level foggier, increase the setting value.
Instructions To make the background level less foggy, decrease the setting value.
Setting/ 1. Call the Service Mode to the screen.
2. Click these keys in this order: [Imaging Process Adjustment] → [Background Voltage
Procedure
Margin].
3. Select the color to be adjusted.
4. Enter the new setting from the 10-key Pad.
5. Click [END] to return to the [Image Adjust] menu screen.
6. Click [Stabilizer].
7. Click [Stabilization Only].
8. Press the Start key to validate the adjustment value.
9. Check the print image for any image problem.
NOTE
• If the setting value has been changed, be sure to run an image stabilization
sequence to make valid the new value.
17.7.4

Transfer Output Fine Adjustment

A. 2nd Transfer Adjust
Functions • Adjust the 2nd image transfer output (ATVC) on the 1st page and the 2nd page for
each paper type.
Use • To use when the transfer failure at the trailing edge occurs.
Adjustment
"0" (-5 to +5)
Range
Adjustment To increase the ATVC value (in the direction of a foggier image),
Instructions decrease the setting value.
To decrease the ATVC value (in the direction of a less foggy image),
increase the setting value.
Setting/ 1. Call the Service Mode to the screen.
2. Click these keys in this order: [Imaging Process Adjustment] → [Transfer Output Fine
Procedure
Adjustment].
3. Select the side of the image (First side or Second side), on which the transfer failure
at the trailing edge occurs.
4. Select the paper type with the transfer failure at the trailing edge.
5. Enter the new setting from the [+] / [-] keys.
6. Click [END] to validate the adjustment value.
7. Check the print image for any image problem.
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Field Service Ver. 2.0 Mar. 2006