Toshiba e-STUDIO 2555C Service Manual page 742

Step Check Item
< Checking the status of the image
position aligning sensor >
11
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
Result Measure
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.
1. Turn the power ON while [0] and [3]
are pressed simultaneously.
2. Press the [START] button.
3. Press the [FAX] button, then check
how items [A] and [B] are displayed
while [1] is pressed.
4. Press the [CLEAR] button.
5. Key in "125", then press the
[START] button. (03-125: Sensor
shutter is opened)
6. Key in "126", then press the
[START] button. (03-126: Image
position aligning sensor / LED ON)
7. Press the [START] button.
8. Press the [FAX] button, then check
how items [A] and [B] are displayed
while [1] is pressed.
9. Compare them with the statues of
[A] and [B] displayed in (3).
- Both [A] and [B] are changed -
The image position aligning
sensors on both sides are
operating normally.
- [A] remains same - The image
position aligning sensor on the
rear side is not operating
normally.
- [B] remains same - The image
position aligning sensor on the
front side is not operating
normally.
- Both [A] and [B] remain same -
The image position aligning
sensors on both sides are not
operating normally.
10.Press the [CLEAR] button.
11. Key in "176", then press the
[START] button. (03-176: Image
position aligning sensor / LED OFF)
12.Key in "175", then press the
[START] button. (03-175: Sensor
shutter closed)
13.Turn the power OFF.
14.If the image position aligning
sensors on both sides are operating
normally, proceed to step (23). In
other cases, proceed to step (22).
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