Ricoh G092 Service Manual page 195

The IH power control signals IHPOWER and IHON are used to provide the IH unit
[ / ] with electric power. The on/off timing of IHON is adjusted in accordance with
the zero cross detection signal NZCROSS. The table lists the pin locations.(Refer
to illustration on pg 6-29.)
Signal
Name
CN32
IHPOWER 7
IHON 6
T indicates the target fusing temperature. In the 600-dpi printing mode, T is about
175°C. The fusing belt temperature is different for the 1200-dpi printing mode,
thick-paper printing mode and transparency-printing mode. When the printer is idle,
IHPOWER is off, and the fusing belt is not heated.
SM
Pin No.
CN2503 CN32
3 —
4 Out
6-33
In/Out
CN2503
Closes the +24V circuit
—
Provides the IH unit with
In
electricity
CN32: On engine control board
CN2503: On power supply board
PRINT PROCESS
Remarks
G081/G092