Image Control Related Service Call - Toshiba e-STUDIO 2555C Service Manual

8.3.22

Image control related service call

(1) Based on the procedure of [CE10], [CE20] and [CE40] described below, check the status and
take appropriate actions. And then perform the forced performing of image quality closed-loop
control according to the following procedure.
1. While pressing [0] and [5] simultaneously, turn ON the power.
2. Key in [2742], and then press the [START] button. Confirm that the image quality control has
finished normally.
(2) After confirming the items in (1), clear the abnormal detection counter of image quality control.
1. While pressing [0] and [8] simultaneously, turn ON the power.
2. Key in [2528], and then press the [START] button.
3. Rewrite the displayed status counter from "1" - "16" to "0", and then press the [OK] or
[INTERRUPT] button.
4. Key in [2529], and then press the [START] button.
5. Rewrite the displayed status counter from "1" - "16" to "0", and then press the [OK] or
[INTERRUPT] button.
6. Key in [2530], and then press the [START] button.
7. Rewrite the displayed status counter from "1" - "16" to "0", and then press the [OK] or
[INTERRUPT] button.
8. Key in [2531], and then press the [START] button.
9. Rewrite the displayed status counter from "1" - "16" to "0", and then press the [OK] or
[INTERRUPT] button.
10.Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready
state.
[CA00] Color registration abnormality
Classification
Image control related service call
Step Check Item
Remove the transfer belt unit.
 P. 4-130 "4.7.3 Transfer belt
1
unit (TBU)"
Is an image created on the transfer
2
belt?
Check if there is any abnormality
on the rods of the main charger
3
cleaner. Correct if there is.
Check if the drum is rotated
properly by turning the coupling of
the cleaner unit. Correct the auger
4
and the surrounding hardware if
not.
LED head
5
© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved
Color registration abnormality
Result
Yes
No
• Check the connectors and
harnesses between the LGC board
(CN380, CN381, CN382, CN383,
CN384, CN385, CN386, CN387,
CN592, CN593, CN594, CN595,
CN596, CN597, CN598, and
CN599) and the LED head.
• Check if there is any stain or
scratch on the LED head. Clean or
correct if there is.
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Contents
Measure
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
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