Epson manual Printer Port Connection, MFJ-1278B DB-25 Name Printer Port Pin #

MFJ-1278B MULTI-MODE COMPUTER INTERFACING

The MFJ-1278B has a parallel printer port in which to attach a parallel printer. The parallel printer port is located on the left-hand side of the MFJ-1278B. The printer port can be used to make hard copies of either text or graphics.

Printer Port Connection

The printer port is configured as a Centronics compatible parallel port. A cable with male DB-25 on one end and a 36 pin Centronics male connector for the printer end should be used. You may use a standard IBM parallel printer cable instead of trying to wire your own. A Printer cable for connection from the MFJ-1278B printer port to a Centronics compatible printer is available from MFJ Enterprises, Inc. Model No. is MFJ-5412.

If you are using a terminal program that supports graphic printing from the computer to the printer, then you should connect the printer to the computer printer port and not to the MFJ- 1278B printer port.

The MFJ-1278B printer port is available for printing graphics. This feature can be used whether your terminal program supports graphics printing to the computer screen or not. It can be used to print graphics such as Packet, SSTV or FAX pictures. If you want to print graphics, then you should connect the printer to the MFJ-1278B printer port. In this case the printer must be either EPSON or IBM graphic compatible in order to insure successful graphic receiving to the printer.

The MFJ-1278B printer port configuration is shown in Table 2-5.

MFJ-1278B DB-25	Name
Printer Port Pin #
1	Strobe
2	Data Bit 1
3	Data Bit 2
4	Date Bit 3
5	Data Bit 4
6	Data Bit 5
7	Data Bit 6
8	Data Bit 7
9	Data Bit 8
10	Acknowledge
11	Busy
12 thru 17	No connection
18 thru 25	Ground