Fusing Temperature Control - Ricoh G035 Service Manual

IMAGE FUSING AND PAPER EXIT

2.10.6 FUSING TEMPERATURE CONTROL

Temperature Control
There are two types of control: on/off and phase. Use SP2-3 to toggle between the
two modes.
When the main power switch turns on, the CPU checks the AC frequency for 500
milliseconds; this is done in case phase control mode is selected at a later time.
Then the CPU turns on the fusing lamp. When the thermistor detects the stand-by
temperature (165°C), the machine can start to print. When the thermistor detects
the operating temperature (185°C), the CPU turns the fusing lamp off/on to
maintain this temperature.
Fusing Idling
To fuse toner at the proper time after the main power switch is turned on, fusing
idling should be done when the temperature at power-up is 15°C or less and the
temperature reaches the value of SP2-4-1 (Fusing temperature adjustment): –20°C
The fusing idling time is as follows.
Power-up temperature
15°C or less
Higher than 15°C
G035
º C
2 0 0
1 6 5
1 5 0
1 0 0
5 0
Main Switch ON
2-58
1 8 5 º C
Stand-by
G035D518.WMF
Fusing idling time
30 seconds
Not performed
SM