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Signal Description
Pin No. Signal Name
1
DATA STROBE
2 - 9
DATA 0 - 7
10
ACKNLG
11
BUSY
12
PE
13
SLCT
14
AUTO FEED
31
INPUT PRIME
32
FAULT
36
SLCT IN
IN/OUT
Explanation
IN
Data is latched at the leading edge of
this signal.
IN
Parallel 8 bit data
OUT
Data reception is completed and the
printer is ready for the next data
reception when this signal becomes
low.
OUT
The printer cannot receive data when
this signal is high. The signal becomes
high under data receiving, off-line, or
error states.
OUT
This signal becomes high when a
paper empty state is detected.
OUT
This signal becomes high when the
printer is selected and low when it is
deselected.
IN
This signal is used only for the bi-
directional interface as Host is busy.
IN
No connection inside
OUT
This signal becomes low when the
printer is in the paper empty, off-line,
or error states.
IN
This signal is used only for the bi-
directional interface as R/ W .
APPENDICES
Appendix–9
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