AR-405 (serv.man9). AR405 Service Manual-Setting and Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 6

(THVG will be turned on for about 30 sec.)

•

If the output current is not in the specified range, change the
displayed value and adjust. (1 step: about 0.1 

µ

A)

Transfer charger current

Adjustment spec

AR-2XX/3XX 

series

AR-405

TC drum current (Front
surface mode)

+13.5+1.5

µ

A

+15.0+1.5

µ

A

TC drum current (Back
surface mode)

+13.5+1.5

µ

A

+15.0+1.5

µ

A

*

Check that the black clip is securely grounded to the machine
chassis. 

When UKOGE0043CS01 is used:

Knob 1:

Set to DCmA.

Knob 1:

Connect to 2. 

Red clip: Connect to (+).
Blue clip: Connect to (–).

When an ammeter is used:

Red clip: Connect to (+) of the ammeter.
Blue clip: Connect to (–) of the ammeter.

1) Install the DV unit, the drum holder unit, and the charger units to

the copier.

2) Remove the rear cabinet. 

3) Connect the digital multi-meter to SHVG output check pin (CN2-3

pin). 

4) Set the digital multi-meter range to the DCV range. 

5) Manually turn on the door switch. 

6) Execute SIM 8-7. (SHVG will be turned on for about 30 sec.)

7) If the output voltage is not in the specified range, change the

displayed value and adjust. (1 step: about 1V)

Adjustment range

AR-2XX/3XX

series

AR-405

Separation DC component
voltage (Front surface mode)

–140 

±

10V

–150 

±

10V

Separation DC component
voltage (Back surface mode)

–140 

±

10V

–150 

±

10V

This adjustment must be performed in the following cases:

•

When both sensors are cleaned in maintenance.

•

When the value of DMLED/PCLED in SIM 44-12 are greater than
about 100.
Clean both sensors and perform the adjustment.

1) Execute SIM 44-2.

2) When the adjustment is completed, the gain value is displayed. If

an error occurs during the adjustment, the error display is made.

This adjustment must be performed in the following case:

•

When new developer is supplied.

1) Execute SIM 25-2.

2) The adjustment is automatically made with the toner density sen-

sor output value displayed. After 3 minutes from starting stirring,
the toner density sensor is sampled 16 times, and the average
value is stored as the toner density adjustment value. 

*

When new developer is supplied, clear the developer counter
with SIM 24-5.

2

20

200

(DCmA)

F

R

Green grip

Yellow grip

Black grip

Body chassis
(no coating)

Black

Blue

Red

White

Orange

Orange

Microswitch

Blue grip

Red grip

Digital multi-meter
(UKOGE0043FC01)

White

AR-405

7 – 5

1/21/1999