e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C © 2011 - 2015 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE and TROUBLESHOOTING
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[C270] Carriage home position sensor not going OFF within a specified time / Downloading
firmware with an incorrect model
Remove the original glass and move the carriages to the paper feeding side. Turn ON the power and
check the following items.
[C280] Carriage home position sensor not going ON within a specified time
Remove the original glass and move the carriages to the paper feeding side. Turn ON the power and
check the following items.
Classification Error content
Scanning system related service
call
Carriage home position sensor not going OFF within a specified
time / Downloading firmware with an incorrect model
Proce
dure
Check item Measure
1
Carriage lock Check if the carriage locking screw for packaging is attached.
2 Carriage home position
sensor
1. Check if the harness of the carriage home position sensor is
connected properly.
2. Check if the harness is caught or open circuited.
3 SLG board 1. Check if the connector of the carriage home position sensor
on the SLG board is connected properly.
2. Check if the mounted parts on the SLG board are damaged
or abnormal.
3. If the model of the firmware downloaded is incorrect, a C270
error (exposure lamp blinks twice) occurs. If the exposure
lamp blinks twice, download the correct ROM.
4 Scan motor 1. Check if the belt tension is loosened.
2. Check if the motor fixing screw is loosened.
3. Check if the carriage wire and the timing belt come off.
4. Check if the connector is connected to the motor properly.
5. Check if the harness of the motor is caught or open
circuited.
Parts to be replaced Remark
Carriage home position sensor
Carriage home position sensor
harness
SLG board
Scan motor
Scan motor harness
Classification Error content
Scanning system related
service call
Carriage home position sensor not going ON within a specified time
Proce
dure
Check item Measure
1
Carriage lock Check if the carriage locking screw for packaging is attached.
2 Carriage home position
sensor
1. Check if the harness is properly connected to the sensor
2. Check if the harness is caught or open circuited.
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