Code :

Code: C443, C445, C447
Description: Heater lamp abnormality after abnormality judgment
Causes: Fuser unit
Remedy: Check the procedures 1 to 6 for [C411/C412]. 7 Clear the status counter Change the current status counter value “3”, “5”, “6”, “7”, “8”, “9”, “19”, “21”, “22”, “23”, “25”, “27”, “29”, “45” or “62” to “0” for [C44X], taking the same procedure as that for [C41X]. * The status counter value is as follows in the following cases. C443: “3” is written in the status counter. C445: “5” is written in the status counter. C447: “7” or “8” is written in the status counter. C449: “9”, “19”, “21”, “22”, “23”, “25”, “27”, “29” or “45” is written in the status counter. C450: “6” is written in the status counter. C452: “62” is written in the status counter. * [C443][C445] The temperature of the fuser roller does not rise within a specified period after the power is turned ON. * [C447] The fusing temperature is 40 degrees C or lower. * [C449] The fusing temperature is above 240 degrees C. * [C450] Thermistor abnormality during printing. * [C452] The temperature between the center and edge. thermistors differs by more than 100 degrees C when reaching the Ready temperature.

Code: C449, C450, C452
Description: Heater lamp abnormality after abnormality judgment
Causes: Fuser unit
Remedy: Check the procedures 1 to 6 for [C411/C412]. 7 Clear the status counter Change the current status counter value “3”, “5”, “6”, “7”, “8”, “9”, “19”, “21”, “22”, “23”, “25”, “27”, “29”, “45” or “62” to “0” for [C44X], taking the same procedure as that for [C41X]. * The status counter value is as follows in the following cases. C443: “3” is written in the status counter. C445: “5” is written in the status counter. C447: “7” or “8” is written in the status counter. C449: “9”, “19”, “21”, “22”, “23”, “25”, “27”, “29” or “45” is written in the status counter. C450: “6” is written in the status counter. C452: “62” is written in the status counter. * [C443][C445] The temperature of the fuser roller does not rise within a specified period after the power is turned ON. * [C447] The fusing temperature is 40 degrees C or lower. * [C449] The fusing temperature is above 240 degrees C. * [C450] Thermistor abnormality during printing. * [C452] The temperature between the center and edge. thermistors differs by more than 100 degrees C when reaching the Ready temperature.

Code: C4B0
Description: Fusing error counter for out-of-specifications
Causes: LGC board
Remedy: 1. Check the LGC board 1. Check if the conductor pattern on the LGC board is open or short circuited. 2. Check if the EEPROM is installed properly. 3. Replace the LGC board. 2. Clear the status counter 1. Change the value of the status counter (FS-08-2002) to "0". 2. Turn the power OFF and then back ON. Make sure that the equipment enters the normal status.

Code: C4C0
Description: Fuser unit new/old detection fuse abnormality
Causes: Fuser unit. PC board
Remedy: 1. Check the fuser unit. 1. Are the connectors disconnected? 2. Are the harnesses open circuited? 3. Replace the fuser unit. 2. Check the PC board 1. Are the connectors disconnected? 2. Are the harnesses short circuited or open circuited? 3. Replace the board.

Code: C550
Description: RADF I/F error
Causes: RADF board SYS board
Remedy: RADF board • Check if the harness connecting the RADF board and SYS board is disconnected or open circuited. (CN122, J12, CN71) • Check if the conductor pattern on the RADF board is short circuited or open circuited. • Connector check SYS board • Check if the conductor pattern on the SYS board is short circuited or open circuited. • Connector check

Code: C551
Description: Document feeder model detection error
Causes: RADF
Remedy: RADF Check if the installed RADF is an option exclusively set for the model. Replace the RADF with the one exclusively set for the model.

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