Table of Contents
Advertisement
EPSON Stylus COLOR 500
Pin assignments
Signal
Return
pin
pin
Signal
1
19
STROBE
2
20
DATA 0
3
21
DATA 1
4
22
DATA 2
5
23
DATA 3
6
24
DATA 4
7
25
DATA 5
8
26
DATA 6
9
27
DATA 7
10
28
ACKNLG
11
29
BUSY
12
28
PE
13
28
SLCT
14
30
AUTO
FEED
XT
15
-
NC
16
-
GND
17
-
CHASSIS
GND
18
-
Logic H
19–30
-
GND
31
30
INIT
32
29
ERROR
33
-
GND
34
-
NC
35
-
+5 V
36
30
SLIN
EPSON Stylus COLOR 500 - 4
Direction
Description
IN
STROBE pulse to read data.
IN
These signals represent
IN
information in bits 0 to 7 of
IN
parallel data respectively. Each
IN
signal is at HIGH level when data
IN
is logical 1 and LOW when it is
IN
logical 0.
IN
IN
OUT
About a 5- s pulse. LOW
indicates data has been received
and the printer is ready to accept
more data.
OUT
A HIGH signal indicates the
printer cannot receive data. The
signal goes HIGH in the following
cases:
1) During data entry (for each
character)
2) During initialization
3) During self test,
demonstration, and
default-setting printing
4) During a printer-error state
OUT
A HIGH signal indicates the
printer is in a paper-out state or
in an error state
OUT
Always at high when printer is on
IN
Not used
-
Not connected
-
Logic ground level
-
Printer's chassis ground, which
is connected to the logic ground
OUT
Pulled up to +5 V through 3.9 K
resistance
-
Twisted-pair return signal
ground level
IN
When this signal goes LOW, the
printer controller is reset to its
state when the power is first
turned on and the print buffer is
cleared. This level is normally
HIGH; its pulse width must be
more than 50 s at the receiving
terminal.
OUT
This signal level goes LOW
when the printer:
1) Is out of paper
2) Is in an error state
3) Has no ink cartridges installed
-
Same as for Pins 19-30
-
Not connected
OUT
Pulled up to +5 V through 3.3 K
resistance
IN
Not used
Note:
The column heading "Direction" refers to the direction of signal
flow as viewed from the printer.
"Return Pin" denotes the twisted-pair return pin to be connected
at signal ground level. For the interface wiring, be sure to use a
twisted-pair cable for each signal and to complete the connection
on the return side.
All interface conditions are based on TTL level. Both the rise and
fall times of each signal must be less than 0.2 microseconds.
Data transfer must be carried out by observing the ACKNLG or
BUSY signal. Data transfer to this printer can be carried out only
after receipt of the ACKNLG signal or when the level of the BUSY
signal is LOW.
Reverse channel
Transmission
mode:
IEEE-1284 Nibble mode
Adaptable
57-30360 (Amphenol) or equivalent
connector:
Synchronization: Refer to the IEEE-1284 specification
Handshaking:
Refer to the IEEE-1284 specification
Signal level:
IEEE-1284 level 1 device
Data
transmission
timing:
Refer to the IEEE-1284 specification
Extensibility
request:
The printer responds to the extensibility
request in the affirmative when the request
is 00H or 04H, which means:
6/96
00H: Request nibble mode of reverse
channel transfer
04H: Request device ID in nibble mode of
reverse channel transfer
Ink Jet Printers
Advertisement
Table of Contents
