Head Voltage Adjustment; Initialization Of Print Count History - Sony UP-895 Service Manual

3-4. Head Voltage Adjustment

Machine condition for adjustment
. Input signal: nothing
. Set all DIP switches on the rear panel to
DOWN.
. Set each switch on the front panel to
NORM, STD, and POSI, respectively.
. Set the POWER switch to ON while
pressing the PRINT and COPY buttons.
. Press the PRINT button to print a stair
step pattern.

3-5. Initialization of Print Count History

Machine condition for adjustment
. Set the POWER switch to ON while
pressing the PRINT, COPY, and FEED
buttons.
UP-895/(E)
Specification
Stair step
Adjust RV502 so that a smooth gradation is
obtained in 17 steps.
Specification
Release the buttons when the buzzer sounds
three times. The initialization of print count
history is then completed (becomes zero in
sheet count).
Adjustments
1RV502/ Switching
regulator
Switching Regulator
(on the right side panel)
1
RV502
Main body
Front
Adjustments
Nothing
3-3