Canon GP200 Service Manual page 302
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3. OPERATIONS AND TIMING
5
Shading Auto Correction
• There are two types of shading correction:
for servicing and for R&D/factory. (Use the
3rd screen in *4*; do not use shading auto
correction for R&D/factory.)
• In shading correction, various data items
are measured, and the results are stored in
RAM on the image processor PCB. (The
data will be used as target values for shad-
ing correction executed before copying.)
• Execute the mode (R&D/factory) for the fol-
lowing:
• After replacing the standard white plate
• After replacing the scanning lamp
• After replacing the DC controller PCB
1) Open the front door, and insert the handle of
the separation static cleaning brush into the
fixing assembly releasing opening.
Separation static eliminator cleaning brush
Figure 3-1016
2) Insert the door switch actuator into the door
switch assembly.
3) Press the service switch with a hex key.
• '$' will be indicated in the upper left corner
of the LCD.
3–248
COPYRIGHT © 1996 CANON INC.
Download service manual and resetter printer at http://printer1.blogspot.com
4) Press the * key twice.
5) Press 'FUNCTION' on the Menu screen (*4*),
6) Press the Page key
2
1
7) Place five to ten standard blank sheets of
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
• The Service Mode Menu screen will
appear.
<SERVICE MODE>
1
DISPLAY
* *
2
I/O DISPLAY
* *
3
ADJUST
* *
4
FUNCTION
* *
5
OPTION
* *
6
COUNTER
* *
7
ACC
* *
8
FAX
* *
+
Figure 3-1017
an press the OK key.
Shading screen (12 the screen).
*3* FUNCTION 12
AUTO SHEADING START (OK)
Now [
WB
H WP
H LAMP H
GDA1
H GD2
H CDA3 H
CDA4
H ADDA5
H
D-ODD
H D-EVN
H
+
Figure 3-1018
paper (FY9-3004) on the copyboard glass.
Copy paper
Copyboard glass
Figure 3-1019
CANCEL
–
OK
to bring up the
CANCEL
]
–
OK
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