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); If You Replace The High-Voltage Power Supply Pcb Assy4-7 - Brother HL-4140CN Service Manual

3. IF YOU REPLACE THE HIGH-VOLTAGE
POWER SUPPLY PCB 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)

3.1 Sensitivity Adjustment of Density Sensor
(Maintenance Mode: Code 72)
Make sensitivity adjustments of the density sensor in accordance with
adjustment of density sensor" in Chapter
3.2 Performing the Developing Bias Voltage Correction
(Maintenance Mode: Code 83)
Perform developing bias voltage correction in accordance with
voltage correction" in Chapter
3.3 Performing the Adjustment of Inter-color Position
Alignment (Maintenance Mode: Code 66)
Perform adjustment of inter-color position alignment in accordance with
inter-color position alignment" in Chapter
5.
5.
5.
4-7
"1.4.18 Sensitivity
"1.4.25 Developing bias
"1.4.12 Adjustment of
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