e-STUDIO5520C/6520C/6530C © 2008-2011 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE and TROUBLESHOOTING
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(1) Set the values of “Image quality closed-loop control / Contrast voltage (08-556)” and “Drum
surface potential sensor control setting (08-2561)” to “0” (Invalid).
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(2) Perform “Enforced performing of image quality open-loop control (05-394)”.
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(3) Output the image quality control test pattern (04-270) more than one time and the list print
([9][START]) in the adjustment mode (05), and then check if the image is normal.
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Normal Abnormal
Abnormal image:
Blank print, Solid print, White banding, Color banding, White spots, Poor
transfer, Uneven image density, Faded image (low density), Uneven light
distribution, Blotched image.
* Blank print: including when one of the YMCK colors is not printed.
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Correct the abnormal image.
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Proceed to step (5).
(4) Replace the image quality sensor or the LGC board.
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(5) Set the values of “Image quality closed-loop control / Contrast voltage (08-556)” and “Drum
surface potential sensor control setting (08-2561)” to “1” (Valid).
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(6) Perform “Automatic initialization of image quality control (05-396)” and make sure it is
completed normally. (Error [CE10], [CE20] and [CE40] do not appear.) Then perform
“Automatic gamma adjustment”.
| When an error occurs:
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Check and correct it accordingly.
(7) Reset all of the values in the codes “Abnormality detection count (Y/M/C/K) Display/0 clearing
(08-573 to 08-576)”.
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