Service manual

EPSON LX-300+ Revision A
Adjustment Overview 84
5.1.2 Bi-D Adjustment
Bi-D adjustment is required at the following cases.

Main board assembly is replaced.

Printer mechanism is replaced.
 Printer mechanism is removed.
Follow the steps below for the platen gap adjustment.
1. Connect the printer and the host computer by parallel interface cable.
2. Turn on the PC and the printer.
3. Set FF paper to the printer.
4. Insert FD that contains the adjustment program and click
“GWBASIC.EXE” in the disk to execute GWBASIC. The following DOS
prompt screen appears.
5. Load and run the adjustment program “Q80A10V.bas”
6. The application select screen appears. Input “G” to select “GWBASIC”