4-5
Confidential
1.5 Sensitivity Adjustment of Density Sensor
(Maintenance Mode: Code 72)
Make sensitivity adjustments of the density sensor in accordance with “1.4.18 Sensitivity
adjustment of density sensor” in Chapter 5.
1.6 Performing the Developing Bias Voltage Correction
(Maintenance Mode: Code 83)
Perform developing bias voltage correction in accordance with “1.4.25 Developing bias
voltage correction” in Chapter 5.
1.7 Performing the Adjustment of Inter-color Position
Alignment (Maintenance Mode: Code 66)
Perform adjustment of color registration in accordance with “1.4.12 Adjustment of color
registration” in Chapter 5.
2. IF YOU REPLACE THE REGISTRATION
MARK SENSOR HOLDER ASSY
■ What to do when replacing the laser unit
- Sensitivity adjustment of density sensor (Maintenance mode: code 72)
- Performing the developing bias voltage correction (Maintenance mode: code 83)
- Performing the adjustment of inter-color position alignment (Maintenance mode: code 66)
2.1 Sensitivity Adjustment of Density Sensor
(Maintenance Mode: Code 72)
Make sensitivity adjustments of the density sensor in accordance with “1.4.18 Sensitivity
adjustment of density sensor” in Chapter 5.
2.2 Performing the Developing Bias Voltage Correction
(Maintenance Mode: Code 83)
Perform developing bias voltage correction in accordance with “1.4.25 Developing bias
voltage correction” in Chapter 5.
2.3 Performing the Adjustment of Inter-color Position
Alignment (Maintenance Mode: Code 66)
Perform adjustment of inter-color position alignment in accordance with “1.4.12 Adjustment of
inter-color position alignment” in Chapter 5.
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