If a heater is used in the main machine, it is required that the harness from the heater sub-board is connected to the BCU. When this harness is connected to the BCU, the supply power is controlled based on the main machine operation and the setting of SP5-805-001 as shown in the following table.
Heater | SP5-805-001 | Plug-in | Sleep Mode | JAM/ Door Open/ SC | Stand-by Mode/ Fusing Unit Off Mode | Printing |
|---|---|---|---|---|---|---|
Dehumidification Heater (Paper Feed Tray: Standard) | 0 (OFF) | On | On | Off | Off | Off |
1 (ON) | On | On | On | On | Off | |
Dehumidification Heater (Paper Feed Tray: Option) | 0 (OFF) | On | On | Off | Off | Off |
1 (ON) | On | On | On | On | Off | |
Anti-condensation heater (Scanner) | 0 (OFF) | On | On | Off | Off | Off |
1 (ON) | Disabled* | |||||
Anti-condensation heater (PCDU) | 0 (OFF) | On | On | Off | Off | Off |
1 (ON) | Disabled * | |||||
* If SP5-805-001 is set to “1” (ON), disconnect the harnesses of anti-condensation heaters (Scanner and PCDU) manually to disable. Otherwise, the followings may occur:
- Malfunctions such as toner fixation
- Failure or deterioration of the stabilizer in the scanner due to temperature rise
- As the heater circuit of this machine comprises of a single system, the machine cannot control the heaters for paper feed trays and for the main machine individually. If the SP is set to “1” (ON), all the heaters are turned on even though the machine is in “Sleep Mode” or “Fusing Unit Off Mode”. Activating the anti-condensation heaters (Scanner and PCDU) in “Sleep Mode” or “Fusing Unit Off Mode” causes a part failure in the machine. Be sure to deactivate these heaters (Scanner and PCDU) beforehand.