Color Shift Correction - Konica Minolta bizhub C350 Service Manual

TECH. REP. MODE
4.4.8

Color Shift Correction

A. Black
Functions • To correct black color shift, if it occurs
• Make Color Shift Corrections (cyan, magenta, and yellow) after this adjustment has
been made.
Use • To correct black color shift, if it occurs
• The LPH Assy (Bk) has been replaced.
Adjustment
Range
Adjustment If the black reference line deviates in the direction of C, decrease the setting value.
Instructions If the black reference line deviates in the direction of D, increase the setting value.
1. Machine Adjust → Color Shift Correction.
Adjustment
Procedure 2. Load Tray1 with A3 or A4R plain paper.
3. Press the Start key.
4. Fold the printed test pattern in half lengthwise to check for deviation (the image on
the inside).
5. Check deviation between black lines A and B.
6. Select black.
7. Change the setting value using the Up/Down key as necessary.
8. Produce another test pattern and check for deviation.
Check Procedure
Check point A, B
3-54
bizhub C350 Field Service Ver2.0 Sep. 2004
0 (-10 to +10 dot)
A
Direction of C
A
B
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If the black reference line
deviates in the direction of
C, decrease the setting
value.
If the black reference line
deviates in the direction of
D, increase the setting
value.
B
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Direction of D
B
A
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