SC Code Specific
Occurrence
Conditions
Cause Action
SC990 The following data is
stored in the SC error
log:
File:
procon.c
Line: 8xxx (ex. 8573)
Value: 0
Note:
In many such
cases, SP2103-1 to -4
have been set to a
value near the
maximum (+64).
A normal grayscale
pattern was not detected
15 times consecutively
during the ID sensor
Grayscale pattern check.
1. Clean the ID sensor
and/or drum.
2. Replace the following, as
deemed necessary:
#
OPC drum
#
Developer
#
Cleaning blade
#
Charge roller
#
Charge roller cleaning
roller
#
LD unit
3. If any of the above
actions resolved the SC,
perform all of the
following:
1. Execute SP3001-2 (ID
Sensor Initial Setting).
2. Return SP2001-1
(Charge Roller Bias
Adjustment) to its default
value.
3. Return SP2103-1 to -4
(LD Power Adjustment) to
their default values.
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