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APPENDIX F. PRINTER MANUAL
Please note that for safety reasons, the printer is shipped with no charge in the batteries.
RS232 Interface
Printers with an RS232 serial interface are fitted with a D25 socket. Connections to this socket are as
follows:
Note that RTS is not implemented but pin 4 is pulled up to +10V via a 1 K ? resistor.
Power Supply
Internal Ni-Cad batteries. A supply of 9V DC unregulated or 12V regulated at 0.6 A (nominal) is sufficient
to recharge the batteries.
An initial charge of approximately 20 minutes will be sufficient both to operate the printer and charge the
batteries. The maximum on-load terminal voltage supplied to the printer must be limited to 12V. A full
battery charge will take approximately 14 hours.
The printer incorporates a power saving feature, which turn the printer off after five minutes’ inactivity
(user selectable). This feature may be disabled, if desired.
Power-On Procedure
Check the batteries are sufficiently charged or that the power supply is correctly fitted and operational.
Open the lid and ensure that paper and a ribbon are present and that there are no foreign objects inside
the paper well or mechanism. Close the lid, ensuring that the paper passes through the paper exit slot.
Switch on the printer by pressing the "1" on the switch panel. The power-on indicator will light and the
mechanism will reset.
Function
TX
RX
CTS
GND
DTR
Direction
OUT
IN
IN
-
OUT
