Toshiba e-studio2507 - Circuit Related Service Call

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ERROR CODE AND TROUBLESHOOTING
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8.3.14 Circuit related service call
[C911] Toner cartridge IC chip access board abnormality
[C940] Engine-CPU abnormality
Classification Contents
Circuit related service call Abnormal access between the CTRG board and MAIN board
Proce
dure
Check item Result Contents
Next
Step
1 Does the recommended
toner cartridge display
appear when the toner
supply cover is opened
and closed?
Yes Use the recommended TOSHIBA toner
cartridge.
2
No
2 Toner cartridge • Check the phenomenon by removing the
toner cartridges and reinserting them.
• Check that the CTRG board of the cartridge
is installed properly.
• Avoid touching the contact point.
• Wipe the contact point with a soft cloth if it's
stained.
3
Contact point on the
equipment side
Check that the spring of the contact point is not
deformed.
4
Is the spring of the contact
point returned when it is
pushed lightly?
Yes
No • Check that the CTIF board is installed
properly.
• Board check
7
5
MAIN board • Connector check (CN15)
• Board check
6
Harness • Connector check (CN15: Main board,
CN150: CTIF board)
• Harness check
7
CTIF board • Check that the board is installed properly.
• Board check
Replacement part Remark
Toner cartridge
MAIN board
Harness
CTIF board
Classification Contents
Circuit related service call Engine-CPU abnormality
Check Item Measure
Main power switch Turn OFF the main power switch, then back ON.
Engine-CPU and FROM Check if the conductor pattern between the Engine-CPU and
FROM is short circuited or open circuited.
MAIN board Board check
Replacement part Measure
MAIN board