Manual
The
following figure shows the
temperature control procedure.
Power On
[See ]
ON
f)
1A-1)
degree C)
c)
C)
c)
Figure 2-20. Temperature for
Control Procedure
If the following conditions are detected, the printer indicates a
error (the LCD displays
SERVICE REQ.
. The thermistor temperature does notreach55°C
within 15 sec.
●
The warm-up period does notend within 120 seconds.
●
The thermistor temperature drops to
●
Thethermistortemperatureexceeds
The thermo fuse
cuts power
if
the temperature of the fusing section rises to an abnormally
high level (over
2.1.2.4 Scanner Mirror Motor Control
Figure 2-21 is the scanner mirror motor (M2) control circuit. ‘l’he scanner mirror motor is driven
while the scanner
motor
receives the SCANNER MIRROR MOTOR
signal.
Engine Controller Board
GND2
POLYGON MOTOR
LOCK
CLOCK
Motor
5
M2
3
2
1
Figure 2-21. Scanner Motor Control Circuit
Figure 2-22 is the scanner mirror motor driving timing chart. The scanner mirror motor rotates 0.15
seconds after the main motor (Ml) turns on. If the MIRROR
LOCK
signal is
not turned on within 3 seconds after the seamer mirror motor turns on, the printer indicates a
scanner mirror motor
malfunction.
Main Motor On
[sec.]
M2:ON
I
M2:LOCK
3.0
Figure 2-22. Scanner Motor Driving Start Timing
Rev.
2-11
