AR-C262M (serv.man3). Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 116

AR-C262M  SETTING AND ADJUSTMENTS  8 - 9

There are two methods of the image registration adjustment: the
manual adjustment and the automatic adjustment. Either of them
uses the simulation.

This adjustment is required in the following cases:

• When the scanner (writing) unit is replaced.

• When the scanner (writing) unit is removed from the machine.

• When color image mis-resist is generated in the main scanning

direction.

• When color image mis-resist is generated in the sub scanning

direction.

• When installation or the installing place is changed.

• When maintenance is performed. (When the OPC drum, the

photoconductor cartridge, the transfer unit, or the transfer belt is
replaced.)

• When U2 trouble occurs.

• When ICU PWB is replaced.

• When EEPROM on ICU PWB is replaced.

Remark: Though SIM 50-22 is not performed under the following

conditions, the image registration adjustment is per-
formed automatically.

∗

When the toner cartridge is replaced.

∗

At every 8,000 copies (total of print quantity and copy quantity)
(When 8,000 copies is reached during a job, the machine stops
after completion of the job.)

If the set item AR of SIM 44-1 is set to OFF (Disable), the above
operation is not performed.

After setting the image registration to the best by SIM 50-20, when
the image registration adjustment is automatically performed, the
best-adjusted condition may be varied. To avoid this, set the item
AR of SIM 44-1 to OFF (Disable).

Before executing this adjustment, check that the following adjust-
ments have been properly completed.

∗

Print engine image focus adjustment (Scanner (writing) unit)

∗

Print engine image skew adjustment (Scanner (writing) unit)

∗

Image registration sensor adjustment

∗

SIM 48-6 FSM (Fuser roller speed) is set to the default.

Default setup of SIM 48-6 FSM (Fuser roller speed)

D: 80 (For paper of 420mm or shorter in the transport direction)

I: 85 (For paper of 420mm or longer in the transport direction)

J: 85

K: 70

This adjustment is used to perform the image registration adjust-
ment in the main scanning direction and in the sub scanning direc-
tion at the same time with the simulation.

1) Enter the SIM 50-22 mode.

SIM 50-22

2) Press the [EXECUTE] key.

The [EXECUTE] key is highlighted, and the image registration
automatic adjustment is started. After completion of the adjust-
ment, the [EXECUTE] key returns to the normal display.

The adjustment process status is indicated with (

∗

) mark. It

takes several minutes to complete the adjustment.

3) Enter the SIM 50-20 mode.

SIM 50-20

4) Select the A4 (11 x 8 1/2) size paper feed tray.

5) Press the [EXECUTE] key.

The image registration adjustment pattern is printed.