HP 706C User Manual download pdf (Page 45)

PRINT MASTER-TO-COMPUTER COMMUNICATION

NOTE:

Print Master will provide full duplex communication between a

computer and printer which are connected through the unit. This

section is applicable only when a device that is connected to a printer

port is sending data back to a device connected to a computer port.

When Print Master is sending data to a computer through a computer

port and the computer cannot receive any more data, Print Master will

expect to see a low on the DTR line or receive an XOFF. When the

computer can receive more data, Print Master will expect to see a

high on the DTR line or receive an XON.

If Print Master receives an XOFF character from a computer, the unit

will buffer data received from the printer device up to 256 characters.

If the buffer fills, Print Master

will not

handshake with the printer

sending data to the computer.

 #

Print Master has a special option to order for the HP 3000 mini

computer. When the HP 3000 sends an HP Laserjet inquiry

command, Print Master will respond with an ASCII 0 (30 hex).

Please contact BayTech for purchasing information (see

Section 10

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HP 706C User Manual Page 45