Olivetti d-color MF651, Service Manual, Page: 546 / 1053

12. SERVICE MODE Field Service Ver. 2.0 Jul. 2009
486
ADJUSTMENT
/ SETTING
12.6.7 Transfer Output Fine Adjustment-Primary transfer adj.
A. Use
• Adjust the output value for the 1st image transfer voltage.
• To use when white spots appeared.
B. Procedure
• The default setting is 0.
-8 to +7 (step: 1)
*1 step is equivalent to 2
P
A.
1. Call the Service Mode to the screen.
2. Select [Test Mode]
o
[Halftone Pattern] to output the red or green test pattern.
See P.580
3. When the test pattern image has white spots, adjust with the following procedure.
4. Touch these keys in this order: [Imaging Process Adjustment] o [Transfer Output Fine
Adjustment].
5. Select [Primary transfer adj.].
6. Select the color.
7. Change the setting value using the [+] / [-] keys.
Adjust the output value for the 1st image transfer voltage by;
Increasing it: Increase the setting value (white spots will decrease)
Decreasing it: Decrease the setting value
8. Touch [OK] key to set the adjustment value.
Gradually increase the adjustment value to the acceptable white spots level while
checking the test pattern.
NOTE
• PC Drum memory may occur by taking measure to white spots occurred by
increasing the 1st image transfer voltage to adjust it.
Check the image on the test print or the color chart when adjusting.
Service Manual Y110571-1