Sharp AR-280 Service Manual page 96

After completion of warming up, the warm-up time is displayed.
8
8 - 1
Purpose Adjustment/Operation test/check
Function Used to check the operation of the developing bias volt-
(Purpose) age in each print mode and its control circuit. (For OPC
drum type B)
Section Process (OPC drum, developing unit, transfer,
cleaning) section
Operation/ (The developing bias output voltage of each print mode
Procedure can be adjusted and checked.)
1. Select the print mode with [­] key and [¯] key.
2. Enter the adjustment value with the 10-key pad.
3. Press the [EXECUTE] key.
The [EXECUTE] key is highlighted, the adjustment value entered in
procedure 2 is set, and the voltage corresponding to the set value is
supplied.
After supplying the voltage for 30 sec, the [EXECUTE] key returns to
the normal display.
If the [EXECUTE] key is pressed while the voltage is supplied, the
voltage output is stopped and the [EXECUTE] key returns to the nor-
mal display.
(AR-250/280/281/285/286/335/336/405)
AUTO : Auto mode
CHARA : Character mode
CHARA PHOTO : Character/Photo mode * (500) (–500V ±5V)
PHOTO : Photo mode
TONER SAVE : Toner save mode
PRINTER : Printer mode
PLUS : Cleaning mode
Developing bias voltage
* ( ): Default
7/13/2000
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (150) (+150V ±5V)
7 – 15
(AR-287/337/407)
AUTO : Auto mode
CHARA : Character mode
CHARA PHOTO : Character/Photo mode * (500) (–500V ±5V)
PHOTO : Photo mode
PRINTER : Printer mode
PLUS : Cleaning mode
Developing bias voltage
* ( ): Default
(AR-501/505)
AUTO : Auto mode
CHARA : Character mode
CHARA PHOTO : Character/Photo mode * (490) (–500V ±5V)
PHOTO : Photo mode
TONER SAVE : Toner save mode
PRINTER : Printer mode
PLUS : Cleaning mode
Developing bias voltage
(AR-507)
AUTO : Auto mode
CHARA : Character mode
CHARA PHOTO : Character/Photo mode * (490) (–500V ±5V)
PHOTO : Photo mode
PRINTER : Printer mode
PLUS : Cleaning mode
Developing bias voltage
* ( ): Default
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (500) (–500V ±5V)
* (150) (+150V ±5V)
* (415) (–425V ±5V)
* (490) (–500V ±5V)
* (490) (–500V ±5V)
* (490) (–500V ±5V)
* (490) (–500V ±5V)
* (165) (+150V ±5V)
* (415) (–425V ±5V)
* (490) (–500V ±5V)
* (490) (–500V ±5V)
* (490) (–500V ±5V)
* (165) (+150V ±5V)