Toshiba e-STUDIO2008A Service Manual page 713

Check item
1. Check the edge thermistors
2. Check the LGC board
3. Clear the status counter
Parts to be replaced
LGC board
Thermistors
[C4B0] Fusing error counter for out-of-specifications
Classification
Fuser unit related service call
Check item
1. Check the LGC board
2. Clear the status counter
Parts to be replaced
LGC board
[C4C0] Fuser unit new/old detection fuse abnormality
Classification
Fuser unit related service call
Check item
1. Check the fuser unit.
2. Check the PC board
Parts to be replaced
Fuser unit.
PC board
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1. Check if the connectors of the center, side or edge
thermistors are disconnected.
2. Check if the center, side and edge thermistors contact the
surface of the fuser roller properly.
3. Check if the center, side and edge thermistors are deformed
or dirty.
4. Check if the harnesses of the center, side and edge
thermistors are open circuited.
1. Check if the connector CN309 is disconnected.
2. Check if the conductor pattern on the LGC board is open or
short circuited.
3. Replace the LGC board.
1. Change the value of the status counter (08-2002) to "0".
("62" is written in 08-2002.)
Error content
Fusing error counter for out-of-specifications
1. Check if the conductor pattern on the LGC board is open or
short circuited.
2. Check if the memory (IC41) is installed properly.
3. Replace the LGC board.
1. Change the value of the status counter (08-2002) to "0".
Error content
Fuser unit new/old detection fuse abnormality
1. Are the connectors disconnected?
2. Are the harnesses open circuited?
3. Replace the fuser unit.
1. Are the connectors disconnected?
2. Are the harnesses short circuited or open circuited?
3. Replace the board.
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Measure
Remark
Measure
Remark
Measure
Remark
e-STUDIO2008A/2508A/3008A/3508A/4508A/5008A
ERROR CODE AND TROUBLESHOOTING
8