Monochrome Density Adjustment; Dev. Bias Choice - Konica Minolta bizhub C250 Service Manual

Field Service Ver. 1.0 Jul. 2005
10.6.8

Monochrome Density Adjustment

Functions • To fine-adjust the density of the printed image for a black copy
Use • To vary the density of the printed image of a black copy
Adjustment
Range
Adjustment If the black is light, touch the Darker key.
Instructions If the black is dark, touch the Lighter key.
Setting/ 1. Call the Service Mode to the screen.
2. Touch these keys in this order: [Imaging Process Adjustment] → [Monochrome Den-
Procedure
sity Adjustment].
3. Touch the Lighter or Darker key as necessary to correct the image density.
10.6.9

Dev. Bias Choice

Functions • To change the setting of the developing bias voltage
• When this function is turned ON, it decreases the developing bias voltage, thereby
preventing voltage leak from occurring.
Use • Use when patches of white occur in the image in an ambience of low atmospheric
pressure, such as in high altitudes.
• If ON is set, the screen doesn't display [Service Mode] → [Imaging Process Adjust-
ment] → [Gradation Adjust] and the Gradation Adjust is not allowed.
Setting/ • The default setting is OFF.
Procedure
Lighter (2 steps), "Std", Darker (2 steps)
ON
10. Service Mode
"OFF"
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