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VI. SERVICE MODE
A. Outline
The machine's service mode is grouped into the
following six:
No.
[1]
Control display mode
[2]
I/O display mode
[3]
Adjustment mode
[4]
Operation/inspection mode
[5]
Machine settings mode
[6]
Counter mode
Table 7-601
COPYRIGHT © 1998 CANON INC.
Description
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
OPERATIONS AND TIMING
B. Using Service Mode
1. Starting Service Mode
1) Open the front door, and insert the door switch
actuator.
• If you want to make checks as in "I/O display
mode" while making copies, set the appropri-
ate copying mode.
2) Push the service mode switch (SW850) on the
service mode PCB with a hex key.
• The copy counter display indicates '1'.
• While in copy mode, the copy density indica-
tor LED indicates the position of the fixing
belt.
• A press on the Reset key ends service mode.
Service mode switch
Figure 3-601
2. Selecting Service Mode Group
1) While the copy count indicator is indicating '1',
press a key from '1' through '6' on the numeric
keypad to select a service mode.
2) Press the AE key.
• The machine starts the selected service mode,
and the copy counter indicates '301'. '301'
means that the mode is the first mode of
service mode 3.
3. Selecting an Item under Each Ser-
vice Mode
1) While the 100's of the number indicated on the
copy mode counter ('301', for example) is flash-
ing, press the numeric keypad to select the
mode you want to execute.
• The copy counter indicator indicates the num-
ber, flashing the 100's.
• A press on the Clear key returns to group
selection ('3', for example).
2) Press the Start key.
• The machine starts the selected service mode.
3–105
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