Epson Stylus 200 Service Manual page 18

Product Description
Table 1-10 and 1-11 shows the connector pin assignments and signal functions of the 8-bit parallel interface.
Table 1-10. Signal and Connector Pin Assignments for Parallel Interface
Pin No. Signal Name
1 -STROBE
2-9 DATA 1-8
10 -ACKNLG
11 BUSY
12 PE
13 SLCT
14 -AFXT
31 -INIT
32 -ERROR
35 +5 V
36 -SLIN
17 CHASSIS
18 Logic H
16,33
GND
19-30
15,34 NC
* The I/O column indicates the direction of the signal as viewed from the printer.
The busy signal is active (HIGH) under the following conditions:
-During data reception(See Figure 1-6)
-When the input buffer is full
-When the-INIT input signal is active (low level)
-During the hardware initialization
-When the-ERROR or PE signal is active
- During the self-test mode
-During the default setting mode
The -ERROR signal is active(LOW) under the following conditions:
-When a paper-out error occurs
-When a no ink catridge error occurs
-When a fatal error occurs
The PE signal is active (HIGH) under the following conditions:
-When a paper-out error occurs
1-10
I/O*
I Strobe pulse. Input data is latched at falling edge of the signal.
I Parallel input data to the printer.
This signal (negative pulse) indicates that the printer has
O
received data and is ready to accept next one.
This signal's high level means that the printer is not ready to
O
accept data.
This signal's hugh level means that the printer is in a state of
O
paper-out error.
O Always at high level when the printer in powered on.
I Not used
I This signal's negative pulse initializes printer.
O This signal's low level means the printer is in a state of error.
—
Pulled up to +5 V through 1.0 K
In Not used.
—- Chassis ground
O Pulled up to +5V through 3.9 K
— Signal ground.
—- Not connected.
Epson Stylus Color 200 /Epson Stylus 200
Description
bit 0:LSB
resistor in the printer.
resistor.
Rev. A