Sharp MX-5000N - Printing

MX-5001N ADJUSTMENTS 5 – 7
4-B Adjust the developing bias voltage
This adjustment is needed in the following situations:
* When the MC/DV high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1) Go through the modes specified in Simulation 8-1.
2) Select an output mode to be adjusted with the mode key and
the scroll key.
3) Enter the adjustment value (specified value) of the middle
speed mode and press [OK] key.
EXECUTE
EXECUTE
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10-key
or after 30 sec.
Item Mode
Adjustment
range
Monitor (MC/DV high
voltage PWB)
Actual
voltage
Monitor voltage
(Specified value)
Check
pin
MIDDLE A MIDDLE SPEED DVB_K K Developing bias voltage (Middle speed mode) 0-600 19.2 ± 1.2V BS-K -450V
B MIDDLE SPEED DVB_C C Developing bias voltage (Middle speed mode) 0-600 19.2 ± 1.2V BS-C -450V
C MIDDLE SPEED DVB_M M Developing bias voltage (Middle speed mode) 0-600 19.2 ± 1.2V BS-M -450V
D MIDDLE SPEED DVB_Y Y Developing bias voltage (Middle speed mode) 0-600 19.2 ± 1.2V BS-Y -450V
LOW A LOW SPEED DVB_K K Developing bias voltage (Low speed mode) 0-600 19.2 ± 1.2V BS-K -450V
B LOW SPEED DVB_C C Developing bias voltage (Low speed mode) 0-600 19.2 ± 1.2V BS-C -450V
C LOW SPEED DVB_M M Developing bias voltage (Low speed mode) 0-600 19.2 ± 1.2V BS-M -450V
D LOW SPEED DVB_Y Y Developing bias voltage (Low speed mode) 0-600 19.2 ± 1.2V BS-Y -450V