Specifications
Printer interface
• Signal terminals
The
printer
has a
total
of
36
1(0
signal tenninals (Fig. 26).
The relationship between the signal and the tenninals are
as
shown below.
,
1111!HllI111109S7"S"
Fig.
26
• Signal arrangement and description
(A) When a combination
of
host
computer
MZ-80B, interface card MZ-8BPSI, and signal cable
MZ-
8BP4C
is
employed.
2
3
4
5
6
7
8
9
10
11
DATASTB
DATA I
DATA
2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
DATA 8
BUSY
•
Synchronization signal
to
read DATA I through
DATA
8.
(Positive logic).
• These tenninals are signal lines to receive information
contained
in
the I st
to
8th
bits
of
data.
• Data request signal
to
infonn
externally
that
the
printer
is
ready for data receiving after completion
of
work related to the received
data
and code. (Negative
logic).
• This signal
is
output
whenever BUSY signal changes
from
high level
to
low level.
• BUSY
signal becomes high level
under
the following
circumstances.
(a) When the
printer
is
feeding and printing.
(b)
When the
printer
is
in DESELECT mode.
(d) When the
printer
is receiving data.
(e) When the
printer
receives PRIME signal.
l
(C) When the
printer
is
in FAULT state.
~--------~-----------
-------
12 PE
• Becomes high level when the printer is in PE con-
dition.
35
•