44346001TH Rev.1
133 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING
Panel display ( identi-
fies that no display is
provided)
On-
line
lamp
Atten-
tion
lamp
Detail
Solution
%COLOR% IMAGE
DRUM SMEAR
ERROR
Varies Varies A density adjustment image drum
error 2. The printer has the error when
detecting a density problem due to an
LED head being out of focus (extremely
dirty). The printer has the error in no
user environments because, when it
is in the Shipping mode and the PU
firmware detects this status, the PU
firmware provides no notice to the CU
firmware.
%COLOR%
Y
M
C
K
−
%COLOR% LOW
DENSITY ERROR
Varies
On
A density adjustment image drum error.
The printer has the error when, due
to image drum failure, outputting dirty
print and detecting a density problem.
The printer has the error in no user
environments because, when it is in the
Shipping mode and the PU firmware
detects this status, the PU firmware
provides no notice to the CU firmware.
%COLOR%
Y
M
C
K
−
SENSOR
CALIBRATION
ERROR
Varies
On
A sensor calibration error. The printer
has the error in no user environments
because, when it is in the Shipping
mode and the PU firmware detects this
status, the PU firmware provides no
notice to the CU firmware.
−
Panel display ( identi-
fies that no display is
provided)
On-
line
lamp
Atten-
tion
lamp
Detail
Solution
REGISTRATION
ERROR
<n>
Varies
On
A color registration adjustment error.
This display indicates that the printer has
an error in rough adjustment or main-
scanning line adjustment. The printer
has the error in no user environments
because, when it is in the Shipping mode
and the PU firmware detects this status,
the PU firmware provides no notice to the
CU firmware.
<n>
2 = Y
3 = M
4 = C
5 =
−
REGISTRATION
SENSOR ERROR
<n>
Varies
On
A color registration sensor error.
The printer has the error in no user
environments because, when it is in the
Shipping mode and the PU firmware
detects this status, the PU firmware
provides no notice to the CU firmware.
<n>
2 = Y
3 = M
4 = C
5 =
−
%COLOR% HEAD
DATA ERROR
Varies
On
No LED head adjustment data is
found or invalid. This occurs in no user
environments because, when the printer
is in the Shipping mode and the PU
firmware detects this status, the PU
firmware provides no notice to the CU
firmware.
%COLOR%
Y
M
C
K
−