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A. Specifications
❏ Parallel interface specifications
• Input connector
Notes: 1. HIGH is pulled up to + 5V by 2.2k Ω resistor.
2. NC stands for no connection.
3. CHASSIS GND and GND are connected in the printer.
• Data input timing chart
STROBE
DATA 1 -DATA 8
BUSY
ACK
1 - 50 µs
min. 1 µs
max. 0.5 µs
3 - 7 us
min. 0 µs
6 - 10 µs
3 - 7 µs
PIN SIGNAL IN/OUT PIN SIGNAL IN/OUT
1 STROBE IN 19 GND
2 DATA 1 IN 20 GND
3 DATA 2 IN 21 GND
4 DATA 3 IN 22 GND
5 DATA 4 IN 23 GND
6 DATA 5 IN 24 GND
7 DATA 6 IN 25 GND
8 DATA 7 IN 26 GND
9 DATA 8 IN 27 GND
10 ACK OUT 28 GND
11 BUSY OUT 29 GND
12 PE OUT 30 GND
13 SELECT OUT 31 INITIAL IN
14 AUTOFEED IN 32 ERROR OUT
15 NC 33 NC
16 NC 34 NC
17 CHASSIS GND 35 NC
18 +5 V (max. 200mA) 36 NC
min. 1 µs
181716151413121110 9 8 7 6 5 4 3 2 1
363534333231302928272625242322212019