MX-C310, MX-C311, MX-C312, MX-C380, MX-C381, MX-C400, MX-C401 (serv.man125). Revised Service Manual. - Sharp Copying Equipment Service Manual (repair manual). Page 96

MX-C401  ADJUSTMENTS  4 – 65

 

This adjustment is needed in the following situations:

* When a consumable part (developer, OPC drum, transfer belt) is

replaced.

* When the CCD unit is replaced.

* When the scanner (reading) section is disassembled.

* When the scanner (reading) unit is replaced.

* U2 trouble has occurred.

* When the MFP PWB is replaced.

* When the EEPROM on the MFP PWB is replaced.

* The scanner control PWB has been replaced.

* The EEPROM on the scanner control PWB has been replaced.

SIM46-74 is used to perform the automatic copy color balance and
density adjustment (SIM46-24) and the automatic printer color bal-
ance and density adjustment (SIM67-24) continuously.

Since it is desirable to perform the copy color balance adjustment
(automatic adjustment) before the automatic printer color balance
and density adjustment, it is advisable to perform the adjustment in
this mode.

This mode is also advisable to effectively perform both of the auto-
matic copy color balance and density adjustment (SIM46-24) and
the automatic printer color balance and density adjustment (SIM67-
24). It saves considerable time when compared with performing
each of the auto copy/printer color balance and the density adjust-
ment individually.

1)

For the color balance adjustment, use the recommended color
paper. (For the recommended paper, refer to [2].)

If the other kind of paper is used for the color balance adjust-
ment, the proper image quality (color balance, density) may
not be obtained.

2)

When setting the adjustment pattern on the document table in
the automatic color balance adjustment procedures, place 5
sheets of white paper on the adjustment pattern in order to
prevent back copying and adverse effects of paper wrinkles as
far as possible.