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c.
Clean the Exposure Lamp with a clean cloth and Film Remover.
d.
Clean the Lens with Lens and Mirror Cleaner and lint free cloth.
4.
If necessary, troubleshoot the Exposure Lamp, Lamp Ballast PWB, or IIT PWB.
CCD Calibration
Check
1.
Enter the Diagnostic mode
(Accessing UI
2.
Select Max Setup, IIT Calibration, then CCD Calibration.
3.
Place the Standard Test Pattern 82E13120 on the Document Glass with the lead edge to
the left.
NOTE: If the Standard Test Pattern 82E13120 is not used, the Result for Pcon and Scan
will be NG.
4.
Reflection values for YMCK vs. RGB should be as follows:
a.
Values for "X" in
Table 2
should be between 200 and 250.
b.
The higher the number, the less reflectance. K is always higher than C, M or Y.
Table 2 Values for "X" 200 to 250
Reflection Ratio
R
Y
M
C
X
K
X
Result
5.
The b* Measurement should be within 10 bits (+/-) of the b* Target.
Table 3 b* Calibration Coefficient Check
PCON
b* coefficient
3
b* Patch Value
226
(measurement)
b* Normal Value
225
(target)
Result
OK
6.
If values for "X" in
Table 2
are less than 200, or if b* target Results
form the following checks or troubleshoot.
•
Make sure test pattern 82E13120 is being used and that the test pattern is clean and
free of defects.
•
Make sure the test pattern is position with the L.E. toward the left of the Platen Glass
and registered.
•
Clean both sides of the Document Glass, Document Cover, White Reference Strip,
Reflector, and Mirrors.
Initial Issue
WorkCentre 5335 Family Service Documentation
Diagnostics).
G
B
X
X
X
X
OK
SCAN
3
214
223
OK
Table 3
is NG, per-
BUS Updated 12/2011
•
Clean the Lens with Lens and Mirror Cleaner and lint free cloth.
•
Clean the Exposure Lamp with a clean cloth and Film Remover.
•
Troubleshoot the Exposure Lamp, Lamp Ballast PWB and IIT PWB.
•
Replace the Lens Kit if necessary.
NOTE: Do not select Optical Axis Calibration unless the Lens Kit is replaced.
07/2011
4-205
Repairs & Adjustments
ADJ 6.6
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