
ER-OIPU
5) Head up sensor circuit
1
I
-Omti
------
/EXS1
IC22A I-
CPU
H-d mnk
C14
~=
74nm 74HC22
Ulllng jlnllp!
m
015
IC19
2?-
nczu
me state is detected by the microswitch provided to the left side of
the printer.
The state of HUP signal is recognized by the selector circuit.
5. Buzzer control
IC14
CPU
L!
+5V
Bz
1~:
,
BZ
i
T
-1-
IC8DTC143EBK
T
1
=
There are following three kinds of LED’s. The states are shown in the
table.
LED No.
NAME
FUNCTION
LEDI
POWER Lights up when the power is turned ON.
LED3
ONLINE
Light up when in ON-LINE.
Goes off when in OFF-LINE.
LED2
ERR
Lights up when an error occurs.
Goes off when an error is canceled.
There are following three kinds of switches. The states are shown in
the table.
SWITCH
No.
NAME FUNCTION
Swl ONLINE
Switches between ON-LINE and
OFF-LINE.
I
SW2
RECEIPT
Feeds the receipt paper. Effective in
OFF-LINE.
SW3
JOURNAL
Feeds the journal paper. Effective in
OFF-LINE.
7. Drawer drive control
IC14
CPU
VRES
+24V
+24V
IDRAWI
~
IDRAW2
#
~
,
<d
ICI
IRFSW
TD62308
I
1’”T
By the BZ signal from the CPU, +5V flows through the buzzer to
sound it.
The driver circuit is provided to allow connection of up to two drawers.
For connection of drawers, a connector must be provided on the
PWB.
6. Switches and LED lamp control
VRES
LEDIb~
, POWER
IC7DTC143EK
w
/DONLN
LED2
w
I ERR
7C7 DTC143EK
IDEER
~m
,
ONLINE
u
.
/ONLSW
IC14
CPU
avvc
IRFSW
=4
RECEIPT
-, ..”
I
I
Swl
~:a ‘NL’NE
m
PACN
~: I JOURNAL
12-8
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