Sharp DP-750 Manual de usuario descargar pdf (Pagina 47)

DP750 User's Manual

- 43 -

O: USE X: NOT USE *: HIGH LEVEL

Signal description:

Prescription of signal level on RS-232C

1=Low (Mark): -23 ~ -3 V

0=High (Space): +3 ~ +25V

RDY/BSY protocol (RS-232C)

PIN 1 FG (Frame Ground — connect to the printer rack

Connect to the circuit frame ground

PIN 3 RD (Received Data)

Receive serial data from the computer through this pin. This pin is low level when it receives no

data.

PIN 7 SG (Signal Ground)

Connect to the signal ground

PIN 20 DTR (Data Terminal Ready)

This pin is high level when the printer is ready to receive data. It is low level when not ready to

receive data.

X-ON/X-OFF Protocol

PIN 1 FG (Frame Ground — connect to the printer rack)

Connect to the circuit frame ground.

PIN 2 SD (Transmitted Data)

Send serial data to the printer through this pin. This pin is low level when it receives no data.

PIN 3 RD (Received Data)

Receive serial data from the printer through this pin. This pin is low level when it receives no

data.

PIN 4 RTS (Request to Send)

Send Request to send signal from the printer. This pin is high level when the printer is turned on.

PIN 7 SG (Signal Ground)

Connect to the signal ground.

PIN 20 DTR (Data Terminal Ready)

Output the signal from the printer. This pin is high level when the printer is turned on.

B.3 Printable Area

Note: 1. For assurance of the print quality, please insure print contents all in printable area.

2. If print contents to outrun the printable area, may cause the print head break needle.

Cut Sheet Printable Area:

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 53

Sin comentarios

Sharp DP-750 Manual de usuario Pagina 47