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24 February, 1999
7.3 PROCESS CONTROL ERROR CONDITIONS
7.3.1 PROCESS CONTROL SELF-CHECK RESULTS (SP3-975-00)
Self-check results 03-975-00
Displayed
Value
1
Successful
Forced termination (door
opened, etc.)
99
ID sensor offset error
100
Vsg adjustment error
110
Coating weight calculation
error
120
Vmin error
130
γ calculation error, invalid γ
20*
or Vk value
Residual potential error
300
Vd adjustment error
31*
32*
Vpl adjustment error
Self-check process control γ
40*
(gamma) error (unable to
calculate)
Self-check process control γ
41*
(gamma) error (out of range
condition)
NOTE: 1:K, 2:Y, 3:C, and 4:M are displayed for the respective colors for items
identified by an asterisk in the 'Displayed value' column of the table.
Related
Item
SP No.
None
None
3-107
None
3-122-xx
3-111-00
None
None
PROCESS CONTROL ERROR CONDITIONS
Major Cause
Power is turned off during self-
check.
Temporary main power failure
ID sensor connector
disconnected
Dirty ID sensor, dirty drum,
foreign materials or flaws on the
drum
ID sensor noise interference,
defective development unit,
incorrect charge control unit
setup, development bias error
ID sensor noise interference, K
toner density too low
Development unit error, mixed
colors
Drum anomaly, faulty LD unit,
poor grounding
Drum deterioration, optical
fatigue
Drum anomaly, faulty LD unit
7-3
Remarks
SC385 is
indicated.
SC385 is
indicated.
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