Toshiba e-STUDIO 2555C Service Manual page 752

[CE41] Image quality TRC control test pattern abnormality
Classification
Image control related service call
Step Check item
1 Change the setting of the
image quality TRC control to
"Disabled". Set the values of
08-2600 and 08-8103 to "0".
2 Output several number of
sheets of the image quality
control test pattern (04-270)
and the list print
([9][START]->101), and
check the pattern of each
color. Is the image normal?
3 Change the setting of the
image quality TRC control to
"Enabled". Set the values of
08-2600 and 08-8103 to "1".
4 Perform the automatic
gamma adjustment. If the
adjustment is normally
finished, this is the end of
the procedure. If the error
CE41 still occurs, proceed to
step 5.
5 4.Check if the harness
between the connector
CN128 on the SYS board
and the connector CN350 on
the LGC board is
disconnected or open
circuited. Correct if so.
6 6.Check if the conductor
patterns on the SYS board
and the LGC board are short
circuited or open circuited.
7 7.If no abnormality is found
in steps 5 to 6 above,
replace the IMG board.
8 8.Perform automatic gamma
adjustment. If the
adjustment is normally
finished, this is the end of
the procedure. If the error
CE41 still occurs, proceed to
step 9.
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
The image quality TRC control test pattern is not printed
normally.
Result
YES
NO • Check if process units and developer units
are properly installed.
• Check if there is any scattered toner or
developer material around the LED head,
clean it if there is any.
• Correct the problem by referring to
"Troubleshooting for the Image".
 P. 8-277 "8.5 Troubleshooting for the
Image"
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Error item
Measures
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