Canon PC400 Service Manual - Page 65
D, Manual Density Control PC420/430/FC220, Test Chart, Newspaper, Document, density
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CHPTER 4 IMAGE FORMATION SYSTEM (darker) 9 0 Density Control Dial 5 1 (lighter) -100 -200 -300 -400 ME2 (dark) -500 ME1 ME0 (light) Developing bias DC component (V)Setting by density correction switch (SW606) Figure 4-102D Manual Density Control (PC420/430/FC220) Document Test Chart Newspaper density 0 -100 -200 -300 -400 AE2 (dark) AE1 -500 AE0 (light) (SW606) Developing bias DC component (V) Figure 4-103D Automatic Density Control (PC420/430/FC220) COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-7
COPYRIGHT © 1998 CANON INC.
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHPTER 4 IMAGE FORMATION SYSTEM
4-7
Figure 4-102D
Manual Density Control (PC420/430/FC220)
Density Control Dial
9
5
1
(darker)
(lighter)
0
-100
-200
-300
-400
-500
Developing bias DC component (V)
ME2 (dark)
ME1
ME0 (light)
Setting by density correction
switch (SW606)
Figure 4-103D
Automatic Density Control (PC420/430/FC220)
Test Chart
Newspaper
Document
density
0
-100
-200
-300
-400
-500
Developing bias DC component (V)
AE2 (dark)
AE1
AE0 (light)
(SW606)