AR-M700 (serv.man26). Setting and adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 36

: Feb. 9 2004

AR-M550/M620/M700  SETTING AND ADJUSTMENTS  7 - 36

If the print density is not at an acceptable level, do the following steps.

6) Adjust the print density by entering an appropriate value through

the numeric keypad. 

A larger value provides higher density. 

7) Press the P or Start key

This applies the adjustment value. 

Pressing the Start key starts print operation as well as applying the
adjustment value. 

8) Check the printed image density. 

Repeat steps 6 to 8 until an acceptable image density is obtained.

This adjustment is needed in the following situations: 

• The CCD unit has been replaced. 

• U2 trouble has occurred. 

• The MFP control PWB has been replaced.

• The EEPROM on the MFP control PWB has been replaced.

• The scanner control PWB has been replaced.

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

• One or more parts of the scanner (reading) section have been

replaced.

The image density settings should be normally left at defaults but
should be adjusted according to user requests, if any.

1) Set the test chart (UKOG-0162FCZZ) on the original table so that it

aligns with the front frame. Then put four or five pieces of A3 (11" x
17") paper.

(Binary mode)

(Copy image reference density)

If the copied test chart (UKOG-0162FCZZ) image includes a back-
ground copy of patch 6 rather than patch 5, adjust all-copy mode to the
image density level specified above.

(Half tone mode)

(Copy image reference density)

If the copied test chart (UKOG-0162FCZZ) image includes a back-
ground copy of patch 2 rather than patch 1, adjust all-copy mode to the
image density level specified above.

1

2

W

10

9

Lot No. 01A

8

7

6

5

4

3

R

1

2

W

10

9

Lot No. 01A

8

7

6

5

4

3

R

Original

Copy

1

2

W

10

9

Lot No. 01A

8

7

6

5

4

3

R

1

2

W

10

9

Lot No. 01A

8

7

6

5

4

3

R

Original

Copy

Image mode

Simulation for 

adjustment

All-mode 

adjustment

Individual-

mode 

adjustment

Scan mode image 
density 
adjustment/
individual setup 
(standard mode)

Auto

Binary mode

46-21

46-22

Manual Binary mode

Scan mode image 
density 
adjustment/
individual setup 
(small-character 
mode)

Auto

Binary mode

46-23

Half tone mode

Manual Binary mode

Half tone mode

Scan mode image 
density 
adjustment/
individual setup 
(fine mode)

Auto

Binary mode

46-24

Half tone mode

Manual Binary mode

Half tone mode

Scan mode image 
density 
adjustment/
individual setup 
(super fine mode)

Auto

Binary mode

46-25

Half tone mode

Manual Binary mode

Half tone mode

00