Toshiba e-STUDIO 5540C Service Manual page 915

Step Check item
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< Checking the status of the image position aligning sensor >
Check if the light emitting area of the image position aligning sensor emits LEDs and if the reflected
lights on the transfer belt surface are detected by the light receiving area of the image position
aligning sensor.
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Result
Check the displayed value. (05-4720-1:
Displaying the cause of image position
alignment detection error center side.)
When the error [CA00] occurs, the value
between 1 and 85 is displayed. (0: Detection
normality on the center side)
(The statues of total 4 sections (4 colors on the
front and rear sides) are displayed.)
1 : Y on the center side detection abnormality
(*3)
4 : M on the center side detection abnormality
(*3)
16 : C on the center side detection abnormality
(*3)
64 : K on the center side detection abnormality
(*3)
85 : All colors on the center side detection
abnormality  (I)
Other than the above: Multiple colors detection
abnormality
(*4) The adjustment value is the sum of (*3),
which, as in the example below, specifies the
cause of the detection abnormality.
(E.g. 1) 05-4720-1 --- in case of 65
65 = 64 + 1
 K on the center side / Y on the center
side detection abnormality
If the adjustment value fits (I) in step 7 or 10,
proceed to step (12). In other cases, proceed
to step (30).
[0] [3] Power ON
[START]
Check how items [G] and [H] are displayed
while [8] is pressed.
Check how items [G] is displayed while [9] is
pressed.
Press the [CLEAR] button.
Key in "118", then press the [START] button.
(03-118: Sensor shutter is opened)
Key in "117", then press the [START] button.
(03-117: Image position aligning sensor / LED
ON)
Press the [START] button.
Check how items [G] and [H] are displayed
while [8] is pressed.
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Measures
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
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