MX-C301, MX-C301W (serv.man5). Service Manual (Revised May 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 112

MX-C301  ADJUSTMENTS  5 – 74

6)

Check the color balance and density.

(Refer to the item of the printer color balance and density
check.)

When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 4), change the factory color balance target with SIM
67-26 and repeat the procedures from 1).

If a satisfactory result on the color balance and the density is
not obtained with the automatic adjustment, execute the man-
ual adjustment (SIM 67-25) (ADJ 10E (2)).

Also when the service target is selected in procedure 4) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
10E (2)).

If the color balance or density is not in the satisfactory level even
after execution of the automatic and manual adjustments, there
may be another cause.

Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
 

 

The color balance adjustment (Manual adjustment) is used to
adjust the printer density of C, M, Y and K. This is used at the fol-
lowing situation. When the result of auto adjustment described
above is not existing within the range of reference. When a fine
adjustment is required. When there is request from the user for
changing (customizing) the color balance.

In this manual adjustment, adjust only the color patch which could
not adjusted properly in the automatic adjustment.

If the color balance is improper, execute the automatic color bal-
ance adjustment in advance, and execute this adjustment for better
efficiency.

YES

NO

Printer color balance and density adjustment (Manual adjustment) procedure 
flowchart (SIM67-25)

Start

Execute ADJ10E(2) (Printer color balance and density 
adjustment (Manual adjustment). (*1)

Enter the SIM67-25 mode, and select A4 
(11" x 8.5") paper. (Automatic selection.)

Press [EXECUTE] key. 
(The adjustment pattern is printed.)

Check the printed adjustment check pattern, 
and select a target adjustment color with the 
color keys (C,M,Y,K).

Select a target adjustment density level with the 
scroll key.

Enter the adjustment value with 10-key. 

Press [EXECUTE] key. 
(The adjustment pattern is printed.)

Are the color balance 
and density at the sati-
sfactory level?

Cancel the SIM67-25 mode.

Set the SERVICE target for the 
automatic printer color balance 
adjustment. (SIM67-27)

End

Check the patch color balance and density in the 
process gray of the color balance check pattern. 
(If the gray color is slightly shifted to Magenta, 
the color balance is properly adjusted.)

*1: 
If satisfactory color balance and density are not 
obtained with the adjustment, check the print 
engine for any problems. 

YES

NO

Is the PCL printer 
function provided?

YES

NO

Are the color balance and 
density at the satisfactory 
level?

Use SIM64-5 to print the self print 
check pattern, and check the 
printer color balance and density.

Use SIM67-25 to print the self print 
check pattern, and check the 
printer color balance and density.

Check the self print check pattern to check the printer color balance and 
density adjustment.