Canon CLC5000 Service Manual page 643

SERVICE MODE
LUTCT-C/M/Y/K
Use it to specify whether to use the gradation correction control data of
each color (auto gradation correction control).
0: Do not use.
1: Use.
Settings Standard value: 1
P-OFST-C/M/Y/K
Use it to set data for correction of the target value for high-density areas in
auto gradation correction mode (i.e., to correct variation of CCD readings).
Set to optimum value at time of shipment.
Settings range -20 to +20 (Standard: 0)
+: Darker
–: Lighter
• If the value of C-, M-, Y-, or K-DMAX is lower than 75, a fault may be
assumed in the development of the color in question.
REF.
• If all values of C-, M-, Y-, and K-DMAX are lower than 75, a fault may
be assumed in transfer or fixing.
• If the value of C-, M-, Y-, or K-DMAX is 120 or higher and copies have
fogging, a fault is assumed in ATR of the color in question.
If you have changed the setting of 'PASCAL', 'DMXCT-C/M/Y', 'LUTCT-
C/M/Y/K', or 'P-OFST-C/M/Y/K', be sure to execute auto gradation in user
mode.
S-54
You must enter the value recorded on the service label once
again if you have initialized the RAM on the DC controller
PCB, since initialization returns it to the standard value.
COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001