Interface
PIN DESIGNATION
1DATA
STROBE
2DATA (LSB)
3DATA 1
4DATA 2
5DATA 3
6DATA 4
DATA 5
^DATA 6
9* DATA 7(MSB)
ACKNOWLEDGE
12
13
I/O DESCRIPTION
IN Taking pin low enables receiving of DATA to
DATA 7. Minimum necessary pulse width is 0.5 uS.
IN 8-bit data signal. Taking pin high or low
corresponds to 1and respectively.
BUSY
PE
SELECT
OUT Active low output pulse generated when data entry
and processing are completed. After this signal,
subsequent data will be accepted. This signal is
also generated when changing from off line to on line.
OUT Output high under any of the following conditions:
a. Going off line.
b. Paper feed or printing operation.
c. When acontrol code is received.
OUT Output high when paper is out. (When on line,
paper out is sensed after executing apaper feed
command. When off line, paper out is always sensed.
OUT On line and off line correspond to high and low
respectively. When off line, DATA to DATA 7are
not receivable.
PIN DESTINATION I/O DESCRIPTION
14 NC
15 NC
16 ov
17 CHASSIS GND
18 +5V OUT +5V (50mA max) power supply output
19 GND Signal ground.
20 GND Signal ground
21 GND Signal ground
22 GND Signal ground
23 GND Signal ground
24 GND Signal ground.
25 GND Signal ground
26 GND Signal ground
27 GND Signal ground
28 GND Signal ground
29 GND Signal ground
30 GND Signal ground
31 INPUT PRIME IN Taking pin low initialises printer
Minimum necessary pulse width is lOOuS
32 FAULT OUT Output low when off line
33 GND
34 NC
35 +5V QUI
DIP switch settings
Described below is how to adjust DIP switches DS1 -1 ,DS1 -2 and DS1 -3 to select one
of the international character sets. The following table indicates the functions of the
remaining DIP switches:
SWITCH FUNCTION OFF ON
DS1-1 International characters See Chapter 2See Chapter 2
DS1-2 International characters See Chapter 2See Chapter 2
DS1-3 International characters See Chapter 2See Chapter 2
DS1-4 CR function CR only CR& LF
DS1-5 Paper out sensor Enable Disable
DS1-6 Page length 11 inch 12 inch
DS1-7 Code unit 8units 7units*
DS1-8 Default character set Standard NLQ-Standard
DS2-1 Zero character Unslashed Slashed
DS2-2 Default skip perforation Disable Enable
DS2-3 Buffer mode Character Graphics
DS2-4 Buffer mode Character/graphics Download
DS2-5 SLCT IN signal Not sent Automatically sent
DS2-6 Alarm bleeper Disable Enable
DS2-7 Default typeface Bold off Condensed &Bold on
DS2-8 Default typeface Condensed off Bold on
DS2-9 Do not use
DS2-10 Do not use
Set DS1-7 ON when using the printer with an Apple computer.
REMEMBER -Al ways switch the printer off before adjusting the DIP switches.
