e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C © 2011 - 2015 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE and TROUBLESHOOTING
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[ 5 ] Image quality closed-loop control (05-2742) / check the controlling status
Procedure
1. If the value of the drum surface potential sensor control abnormalities counter for each color is other
than “0”, reset the counter.
08-2560 Sub-code 0: Y 1: M 2: C 3: K
2. If the value of the drum surface potential sensor shutter closing control abnormalities counter for
each color is other than “0”, reset the counter.
08-2577 Sub-code 0: Y 1: M 2: C 3: K
3. Select “1: Enabled” for the code 08-2561 (Drum surface potential sensor control setting).
4. Perform “Image quality closed-loop control (05-2742)”.
5. If any abnormality is detected, the controlling status and the “ERROR” message shown below are
displayed after approx. 30 to 60 seconds.
Then check the content of the abnormality and the target YMCK process unit on the screen and then
press [CANCEL] at the bottom left of the screen.
* The mode returns to the test mode if the drum surface potential sensor control is normally
completed.
Notes:
• When any of the drum surface potential sensor controlling statuses (display on the upper row)
is “2: Sensor abnormality detected”, drum surface potential sensor shutter closing controlling
status will not be identified. (The display on the lower row is “0: Normally completed”.)
• If the “Image quality closed-loop control (05-2742)” is performed while “2: Only K station
enabled” is selected for 08-2561 (Drum surface potential control setting), the following will
result.
- e-STUDIO6550C, e-STUDIO6570C
If K is normal, the screen will return to “Test mode”, only if K is abnormal, “ERROR” is
displayed. In the controlling status on the upper row, “1” or “2” is displayed in K and “0” in Y, M
and C.
- e-STUDIO5540C/6540C, e-STUDIO5560C/6560C:
In the controlling status on the upper row, “2: Sensor abnormality detected” is displayed in Y,
M, C and K (since the potential sensor is not embedded).
In the controlling status on the lower row, all values are “0” and also “ERROR” is displayed.
• If the “Image quality closed-loop control (05-2742)” is performed while “0: Disabled” is
selected for 08-2561 (Drum surface potential control setting), drum surface potential control
measurement will not be performed. However, if the image quality control is completed
normally, the screen returns to the test mode. (e-STUDIO5540C/6540C/6550C, e-
STUDIO5560C/6560C/6570C)
• If the “Image quality closed-loop control (05-2742)” is performed while “1: All stations
enabled” is selected for 08-2561 (Drum surface potential control setting), the following will
result.
- e-STUDIO6550C, e-STUDIO6570C:
In the controlling status on the upper row, “2: Sensor abnormality detected” is displayed in Y,
M and C, and any of “0” to “2” in K depending on the status.
In the controlling status on the lower row, all values are “0” and also “ERROR” is displayed.
- e-STUDIO5540C/6540C, e-STUDIO5560C/6560C:
In the controlling status on the upper row, “2: Sensor abnormality detected” is displayed in Y,
M, C and K (since the potential sensor is not embedded).
In the controlling status on the lower row, all values are “0” and also “ERROR” is displayed.
Upper row: Drum surface potential
sensor controlling status
<Contents>
0: Normally completed
1: Control paused
(due to the opened cover or other reasons)
2: Sensor abnormality detected
Lower row: Drum surface potential sensor
shutter closing
controlling status
<Contents>
0: Normally completed
1: Control paused
(due to the opened cover or other reasons)
2: Sensor shutter closing abnormality detected
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