How To Select The Host Computer; System Activation - Epson LQ 1050 - B/W Dot-matrix Printer Technical Manual

In this system, a printer is connected to an MS-DOS-based computer using a parallel interface cable,
with the diagnostics ROM installed inside the printer at location IC4A
This system works as follows:
The host computer displays the DIP switch configurations necessary for performing
diagnostics on the printer.
The user sets the corresponding switch on the printer, and turns the printer power on.
The CPU in the printer reads the DIP SW, and performs the diagnostics program that depends
on the DIP SW values.

5.2.3 How to Select The Host Computer

This flexible disk can be used on EPSON PC (EQUITY) or the QX-16 to select the computer.
1) Active the MS-DOS system for your host computer.
2) Remove the MS-DOS system disk.
3) Place the PDOS system disk in drive A.
4) To use PDOS on EPSON QX-16 type
To use PDOS on EPSON PC (EQUITY) type
5) The host computer is now selected.
NOTE: Default setting is the EPSON PC (EQUITY).

5.2.4 System Activation

After the system has been connected, as shown in Figure 5-2, turn on the Host-Computer and place
the system disk in drive A.
The main program is automatically activated, and displays the initial screen message shown in Figure
5-3.
PROGRAMMED BY EPSON, JAPAN
VERSION 1.0 (1 987/NOV./3RD)
Figure 5-3. Initial Screen.
PUSH ANY KEY TO START THIS PROGRAM
5-3
REV.-A