Epson GQ-3500 User Manual page 153

Table F-1. DIP Switch 4
Switch Function
ACKNLG delay
4-1
4-2
4-3
Printer select
4-4
Data length
Table F-2. ACKNLG delay timing
Delay
0 microseconds
10 microseconds
5 microseconds
Parallel Interface Jumpers
There are three jumpers on the parallel interface. These jumpers
control some of the functions of the parallel interface.
These jumpers change settings that do not normally require
changing. Do not change these jumpers unless you understand what they
do and have a specific requirement.
To change the jumpers, you need to remove the interface from the
printer. Chapter 2 tells you how to remove and replace it.
F-2
OFF
ON
See Table
F-2
OFF
ON
8 bits 7 bits
4-2
OFF OFF
ON OFF
OFF ON
I
Explanation
Sets the delay period
from the ACKNLG to the
BUSY signals.
When this switch is ON,
the printer cannot be
deactivated by software
codes. For most uses and
commercial software
programs you should leave
this switch ON.
When this switch is ON the
printer accepts all 8 data
bits. When this switch is
OFF the eighth data bit is
ignored.
Explanation
Sets the delay period from
the ACKNLG to the BUSY
signals.
Parallel Interface