
ER-OIPU
<MOTOR DRIVE SIGNAL HOLD CONTROb
AUTO CUITER DRIVE STATE
STOPI
STARTIDRIVE li3RmKl
sToP
MOTOR DRIVE STATE
flu%
I
HOLDCONTROL
I
EXCITEMENT
OFF
RCSJCS
~BSJBS
RAS,JAS
1070mA
MOTOR
CURFIENT
VALUE
12~A
t
Motor drive signal hold control is made to provide paper holding
power during the operation of the auto cutter.
2)
Auto cutter control
IC14
CPU
CTA
+
CUTM+
IC5
TA8248K
CTB
b
CUTM-
1
Cuttermotor
ICUTHP
I
a?
1
Cutterhome
positionswitch
=
To drive the auto cutter, a DC24V motor is used. Selection of full cut
and partial cut is made by changing the rotating direction of the
motor. This selection is made on the E-CRside. -
<MOTOR DRIVE SEQUENCE>
MOTOR +/- PIN CONTROL
MOTOR
I
ROATING
CUT METHOD
CUTM+
CUTM-
DIRECTION
H
L
Ccw
FULL CUT
L
H
Cw
PARTIAL CUT
H: Connected to DC24V.I
CCW: Counter clock wise
3) Paper end sensor circuit
IC14
CPU
*5V
I
Reflexphoto
sensor
4
I
(
/JPES
3
~
+5V
4
!
(
,
IRPES
3
, Paper endsensor
●
?
Isensor
Paper end sensor
The reflex photo sensor on the printer PWB detects the presence/ab-
sence of the paper passing under the journal and receipt platens.
L: Connected to GND.
CW: Clock wise
To detect the auto cutter home position, a microswitch is used.
12-6
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