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e-STUDIO2006/2306/2506/2007/2307/2507/2303A/2303AM/2803AM/2309A/2809A
ERROR CODE AND TROUBLESHOOTING
8 - 57
[C452] Differential of more than 70°C between center thermistor and side thermistor when
READY temperature is reached
Classification
Error content
Fuser unit related service call
Differential of more than 70°C between center thermistor and
side thermistor when READY temperature is reached
Check item
Measure
1. Check the thermistors
1. Check if the connectors are disconnected.
2. Check if the center and edge thermistors are in contact with
the surface of the fuser roller properly.
3. Check if the center and edge thermistors are not deformed
or dirty.
4. Check if the harnesses of the center and edge thermistors
are open circuited.
2. Check the heater
1. Check if the heater is broken.
2. Check if the connector of the heater is disconnected.
3. Check if the harnesses are connected properly to the
terminals of the heater lamp.
4. Check if the thermostat is blown.
3. Check the MAIN board
1. Check if any of the connectors on the MAIN board is
disconnected.
20L/23L/25L/20H/23H/25H: CN10
23LA/23LM/28LM/23HA/28HA: CN8
2. Check if the conductor pattern on the MAIN board is short
circuited or open circuited.
3. Replace the MAIN board
4. Clear the status counter
After repairing the matter which caused the error [C452],
perform the following:
1. Turn ON the power while [0] and [8] are pressed
simultaneously.
2. Key in “2002”, then press [START].
3. Change the current status counter value “62” to “0”, then
press [OK] (to cancel [C452]).
4. Turn the power OFF and then back ON. Make sure that the
equipment enters the normal ready state.
Parts to be replaced
Remark
MAIN board
Содержание E-STUDIO2006
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