Casio UP-250, Technical Manual

Page: 21 / 165

NOTES:
❏
Two driver transistors cannot be energized simultaneously.
❏
The drawer drive duty must be as shown below:
❏
Be sure to use the printer power supply (connector pin 4) for the drawer power source.
Output signal: Voltage = Approximately 24 VDC
Current = 1 A or less
Output waveform: Outputs the waveforms in Figure 1-8 to pins
2 and 5 of the connector.
t 1 (ON time) and t 2
(OFF time) are specified by ESC p.
t 1 x 2 ms
t 2 x 2 ms
ON time
(ON time + OFF time)
≤
0.2
— 12 —
Drawer kick-out drive signal
CAUTION:
To avoid overcurrent, resistance of the drawer kick-out solenoid must be 24
Ω
or more.
Figure 1-9 Drawer kick-out drive signal output waveform
CAUTION:
Do not connect a telephone line to the drawer kick-out connector; otherwise the printer and the telephone
line may be damaged.