EPSON Stylus COLOR 1520
Rev. A
1-16
Table 1-16 shows the connector pin assignment and signals for forward channel of the parallel interface.
Parameter
Minimum
Maximum
tsetup
500 ns
-
thold
500 ns
-
tstb
500 ns
-
tready
0
-
tbusy
-
500 ns
tt-out*
-
120 ns
tt-in**
-
200 ns
treply
-
-
tack
500 ns
10 us
tnbusy
0
-
tnext
0
-
Note) * : Rises and falls in time of every output signals.
**: Rises and falls in time of every input signal.
Pin No.
Signal Name
Return
GND Pin
I/O
Description
1
/STROBE
19
I
The strobe pulse. Read-in of data is
performed at the falling edge of this
pulse.
2-9
DATA 0-9
20-27
I
The data 0 to data 7 signals represent
data bits 0 to 7, respectively. Each signal
is at high level when data is logical 1 and
low level when data is logical 0.
10
/ACKNLG
28
O
This signal is a negative pulse indicating
that the printer can again accept data.
11
BUSY
29
O
When this signal is at high level, the
printer is not ready to accept data.
12
PE
28
O
When this sign is at high level, the paper
empty status is detected.
13
SLCT
28
O
Always at high level when the printer is
powered on.
14
/AFXT
30
I
Not used.
31
/INIT
30
I
The falling edge of a negative pulse or a
low signal on this line causes the printer
to initialize. Minimum 50 us pulse is
necessary.
32
/ERROR
29
O
When the printer detects an error, this
signal goes low.
36
/SLIN
30
I
Not used.
18
Logic H
-
O
Pulled up to +5V via 3.9 K ohm resistor.
35
+5V
-
O
Pulled up to +5V via 3.3 K ohm resistor.
17
Chassis GND
-
-
Chassis ground.
16,33,19-30
GND
-
-
Signal ground.
15,34
NC
-
-
Not connected.
Note) 1. */* at the beginning of a signal means active low.
2. The I/O column indicates the diction of the signal as viewed form the printer.
Table 1-16. Data Transmission Timing
Table 1-17. Connector Pin Assignments and Signals (Forward Channel)
Summary of Contents for 1520 - Stylus Color Inkjet Printer
Page 138: ...Maintenance Rev A 6 5 8 9 10 10 10 10 10 10 10 10 Figure 6 2 Lubrication Points 2 ...
Page 146: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A A 2 C211 MAIN B Board Circuit Diagram 1 2 ...
Page 147: ...EPSON Stylus COLOR 1520 Rev A A 8 ...
Page 148: ...Appendix Rev A A 9 Figure A A 3 C211 MAIN B Board Circuit Diagram 2 2 ...
Page 149: ...EPSON Stylus COLOR 1520 Rev A A 10 ...
Page 152: ...Appendix Rev A A 13 A 3 Component Layout Figure A A 6 C211 MAIN B Board Component Layout ...
Page 153: ...EPSON Stylus COLOR 1520 Rev A A 14 Figure A A 7 C172 PSB Board Component Layout ...
Page 154: ...Appendix Rev A A 15 Figure A A 8 C172 PSE Board Component Layout ...
Page 156: ...Appendix Rev A A 17 Figure A A 10 Stylus COLOR 1520 Exploded Diagram 2 ...
Page 157: ...EPSON Stylus COLOR 1520 Rev A A 18 Figure A A 11 Stylus Color 1520 Exploded Diagram 3 ...
Page 165: ...EPSON SEIKO EPSON CORPORATION ...
