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All
and
more
about Sharp
PC-1500
at
http://www.PC-1500.info
•
Paralle1
printer
interface
Item
Requ
irernents
Output
format
8 ·bit parallel
out
put
Synchronization
lly r.xicrnally
suppl
ied
strobe pulse
Data
transfer
Han
dshaked
(connected
with
BUSY
signal
}
Da
ta
transfer
speed
222
CPS,
max
.
Appl
icable
code
svst
em
J IS 8
·channel
code/JIS 7·channel code
Electrical
signal
condi
tio1's
1
}
Signal
level
Input
signa
ls:
TT
L
cornpati bl
e
Ou tpu
t sigr>als:
TT
L cornpatibl
e
(can drive
up
to
one
TT
L
IC.}
2)
In
put/ou
tput
conditions
•
Input si
gnals
15A8L
1
or
CQu
ivalent
22
K
Vee
1
~
!_47K
BU:SY-4 0
2.8K
c
f->
c
rv\54
5
14AP
or·
l
OK
equivalent
Ji
Vee
4.7K
4
.
7K
2
.8K
..
+--+
ACKNL
G
-->
~
M545t
4AP
or
10K
CQu
ivalen
t
'---;i,
•
•
Output
signals
~
2.8K
J
'"'I
M54514AP
10K
or
eQuivalent
'--;
Ir
{
--{>--o
':.q
0
-
'
,
Since
all
outputs
arc
open
collector outputs.
pull-up
resist
ors
(1 K
!1
to10
K!1}
arc
required
on
t
he
pri
nter.
Power
supply
1.5V
""·
(DC} dry battery
i
n
size
AA x
1
(Power
suppl
y tor
remote!
control
)
The
interface
circuit
driving power
is
suppli
ed
from
the
PC·
1500/
1501.
Do not sale
this
PDF !!
!
2
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