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Connector pinout
©
T»bl.6 r„nn«t0f Pin Assignment and Descriptions ol Int.rfac S.9nal.
Stgnsl ; Return
Pin No.
Pin No.
19
20
21
22
23
6
!
24
25
26
27
10
28
11
29
12
30
13
14
15
I
^
16
17
19 to 30
31
32
33
34
35
36
Signal
• Direction
Description
STROBE
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
DATA 8
ACKNLG
BUSY
PE
SLCT
AUTO
FEED XT
NC
OV
chassis-gnd
GND
INIT
ERROR
GND
NC
:
SLCT IN
In
In
In
STROBE putie to read data in. Pulse >vidtt>
must be more than 0.5m» at rece-v.og
teTninal.
The signal level ii normaHv "HIGH": read-
in of data isperformed at the "LOW level
of this stgnal.
In
These signals represent mfomation of the
1st to 8th bits of parai'-ei data respectiveiy.
Each s.gnai is« "HIGH" ipvd when data .i
, logical "I" and "LOW" when log.cai "0".
In
In
in
In
Out
Out
Out
Out
In
In
Out
In
Aporox 5m poise -LOW" -nd-cates that
data •^!»s been -ece.ved and that t^e pnnter
is ready to accept other data.
A "HIGH" stgnal indicates that the printer
cannot receive deta. The sigr*®! becomes
"High" in tt>e following cases:
1, During data entry
' 2. During printing ope'^tioo
3. In off-line state
4 During printer error States.
A "HIGH" signal indicates that the printer
is out of peoer.
*^Th.s signei indicates that the pnnter is m
the selected state.
With this signal bemg at "LOW" tevel. the
paper is automatically fed one ' ne after
printing.
(The signal level can be fixed to LOW
vwth DIP SW p.n 2-3 prav.ded or. t^e con
trol circuit board.) ^
Not used.
Logic GND level.
Printer chassis GND.
In the printer, the chanis GND end tt»e
logic GND are isolated f''0"' each other.
TWISTED-PAIR RETURN signal GND level
When the level of this signal becomes
"LOW", the printer controller is reset to its
initial state and the print buffer is cleared.
This signal is normally at "HIGH" level, and
its pulse width mus^ be more than 50»is at
the receiving terminel.
The level of thissignal becomes "LOW"
when the printer is in —
1. PAPER END state
2. OFF-LINE state
3. Error State
Same as with Pin Nos. 19 to 30.
Not jsed.
P-jiled up to -^V through 4.7Kn res'star^ce
Data entry to the printer is possible only
vvher the level of this signal is "LOW".
(Inte'nal fixir>g can beserned out witti DIP
SW 1-8. The condition at the time of
shipment is set"LOW" for this signal.)
Rev.
ft
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