Canon PC400 Service Manual page 65

COPYRIGHT © 1998 CANON INC.
Density Control Dial
(darker) 9
0
-100
-200
-300
-400
-500
Developing bias DC component (V)
Figure 4-102D
Manual Density Control (PC420/430/FC220)
Test Chart Newspaper
0
-100
-200
-300
-400
-500
Developing bias DC component (V)
Figure 4-103D
Automatic Density Control (PC420/430/FC220)
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHPTER 4 IMAGE FORMATION SYSTEM
5 1 (lighter)
ME2 (dark)
ME1
ME0 (light)
Setting by density correction
switch (SW606)
Document
density
AE2 (dark)
AE1
AE0 (light)
(SW606)
4-7