DRIVE SECTION
2-B-3
2 UNIT EXPLANATION
[4] M4 (Fixing) Control
M4 (fixing) is controlled by PRCB (printer control
board) and the motor drive power is supplied
from DCPS (DC power supply unit).
1. Operation
M4 (fixing) is a motor driven by 24 VDC. It drives
the fixing roller.
M4 starts rotating when the START button is
pressed and stops when the last copied paper
has been ejected.
During the warm-up operation, M4 rotates to
rotate the fixing roller.
2. Signals
a. Input signal
(1) MAINM_EM (M4 to PRCB)
M4 (fixing) rotation error detection signal
[H]:Rotation error (when motor speed changes
by 6.5% more or less than the motor speed
specified value)
[L]: Normal rotation
b. Output signals
(1) MAINM_CONT (PRCB to M4)
M4 (fixing) ON/OFF control signal
[L]: M4 ON
[H]:M4 OFF
(2) MAINM_F/R (PRCB to M4)
M4 (fixing) rotational direction switchover signal
[L]:CW rotation
[H]:CCW rotation
(3) MAINM_EM (M4 to PRCB)
M4 (fixing) rotational speed control clock signal
PRCB
DCPS
24V2
P.GND
MS1 MS2
M4
5V
P.GND
MAINM CONT
MAINM CLK
MAINM F/R
MAINM EM
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