Toshiba e-STUDIO556 Service Manual page 598

[C280]
Carriage home position sensor not turning ON within a specified period of time
Classification
Scanning system related service
call
Check item
Carriage
Carriage home position sensor
SLG board
Replace parts
Carriage
Carriage home position sensor
SLG board
[C290] Scanner fuse blowout
Classification
Scanning system related service
call
Check item
Switching regulator
SLG board
Replace parts
Fuse in the scanning system
SLG board
e-STUDIO556/656/756/856(Ver03)
ERROR CODE AND TROUBLESHOOTING
The carriage does not reach to its home position in a specified period of
time.
Remove the original glass and move the carriages to the paper feeding
side. Turn ON the power and check the following items.
• Do the carriages make a big noise after they arrive at the home
position?
• Check the carriage home position sensor
Sensor check (Perform the input check: 03-[FAX]ON/[5]/[H])
• Connector check
• Harness check
• Connector check
• Board check
The scanning system does not operate due to a blowout of the fuse in the
scanning system.
Check if any fuse in the scanning system is blown out.
Connector check
Check if the conductor pattern on the SLG board is short circuited or open
circuited. Check if the 24V output and the grounding wire are normal.
8 - 90
Error item
Measures
Remarks
Error item
Measures
Remarks
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