Skew Adjustment; Ld Adjustment - Konica Minolta bizhub C650 Service Manual

10. Service Mode
10.4.9

Skew adjustment

A. Skew adjustment
Functions • This function allows you to set the default position of the skew correction motor.
• Adjusts and sets a value that is used as an individual skew correction motor's refer-
ence position for skew correction control.
Use • This setting is made after the PH unit is replaced.
• Use this function when the information of the motor's position setting is lost due to the
replacement of the service EEPROM board or other reasons.
Adjustment
Range
Setting/ 1. Call the Service Mode to the screen.
Procedure 2. Touch these keys in this order:
[Machine] → [Skew adjustment] → [Skew adjustment].
3. Select the color to be set.
4. Enter the skew value described on the new PH unit with the 10-key pad.
5. Touch [OK].
6. Proceed to [Skew adjustment reset].
B. Skew adjustment reset
Functions • Returns the skew correction motor to the default position and clear the backup copies
of the cumulative skew amount.
Use • After PH unit replacement, perform [Skew adjustment] and then execute this function.
• After addressing the alert code P-14 and completing an action to the problem, per-
form this function.
• Use this function when the current skew correction motor's position becomes unavail-
able due to the skew adjustment interrupted by the door being opened or the main
power switch being turned OFF.
Setting/ 1. Call the Service Mode to the screen.
Procedure 2. Touch these keys in this order:
[Machine] → [Skew adjustment] → [Skew adjustment reset].
3. Touch the start key and execute the skew adjustment reset.
NOTE
• After the skew adjustment reset is complete, be sure to perform [Initialize +
Image Stabilization].
10.4.10

LD adjustment

A. LD delay adjust.
Functions • LD delay adjust sets adjustment values by adjusting LD light emission delay amount.
(Values to be entered are described on the side of the PH unit.)
Use • This setting is made after the PH unit is replaced.
• This adjustment is made when the service EEPROM board is replaced or the backup
of information on position settings is lost.
Setting/ 1. Call the Service Mode to the screen.
Procedure 2. Touch these keys in this order:
[Machine] → [LD adjustment] → [LD delay adjust.].
3. Select the color to be set.
4. Enter the values described on the side of the PH unit using 10-key pad.
5. Touch [OK].
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Field Service Ver. 8.0 Jun. 2008
0 to 480 (step:1)