Image Quality Problem; How To Read Element Date; Table - Konica Minolta bizhub C350 Service Manual

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Image quality problem

4.
Image quality problem
4.1

How to read Element date

• As part of troubleshooting procedures, the numeric values set for "State Confirm" avail-
able from "Tech. Rep. Mode" can be used to isolate the cause of the image problem.
4.1.1

Table #

• Shows the developing bias value of each color of toner when an image is produced.
Vb-C
• Standard values: Around 390 V
Vb-M
• A correction is made to make the image lighter when the numeric value is greater.
Vb-Y
• A correction is made to make the image darker when the numeric value is smaller.
Vb-Bk
• Relevant Components : Imaging Unit, High Voltage Unit (Developing Bias)
• Shows the grid voltage value of each color of toner when an image is produced.
Vg-C
• Standard values: Around 500 V
Vg-M
• A correction is made to make the image lighter when the numeric value is greater.
Vg-Y
• A correction is made to make the image darker when the numeric value is smaller.
Vg-Bk
• Relevant Components : Imaging Unit, High Voltage Unit (Developing Bias)
4-52
bizhub C350 Field Service Ver2.0 Sep. 2004
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