Full-Color 16-Gradation (Ymcbk) Test Pint (Pg>Type=14) - Canon CLC 1120 Service Manual

CHAPTER 13 TROUBLESHOOTING
10. Full-Color 16-Gradation (YMCBk) Test Pint (PG>TYPE=14)
Use a full-color 16-gradation (YMCBk) test print to check gray balance, gradation of each
color (Y, M, C, Bk) and fogging.
a. Gray Balance
Look at the gray scale area to find out whether each color is generated in even density.
b. Gradation
Check the gradation of each color (Y, M, C, Bk) and for difference in density.
c. Fogging
If a white area is foggy, suspect a fault in the developing system or the photosensitive drum, or
wrong adjustment of the laser.
White area
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COPYRIGHT © 1999 CANON INC.
White area
Figure 13-311
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)