Toshiba e-STUDIO556 - Page 598

e-STUDIO556/656/756/856(Ver03) © 2012 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE AND TROUBLESHOOTING
8 - 90
[C280] Carriage home position sensor not turning ON within a specified period of time
[C290] Scanner fuse blowout
Classification Error item
Scanning system related service
call
The carriage does not reach to its home position in a specified period of
time.
Check item Measures
Carriage 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
Carriage home position sensor Sensor check (Perform the input check: 03-[FAX]ON/[5]/[H])
• Connector check
• Harness check
SLG board • Connector check
• Board check
Replace parts Remarks
Carriage
Carriage home position sensor
SLG board
Classification Error item
Scanning system related service
call
The scanning system does not operate due to a blowout of the fuse in the
scanning system.
Check item Measures
Switching regulator Check if any fuse in the scanning system is blown out.
SLG board 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.
Replace parts Remarks
Fuse in the scanning system
SLG board