Epson Stylus C50 Service Manual page 27

EPSON Stylus C50/C60/C61/C62
Table 1-14. Connector pin assignment and signals (continued)
Return
Pin No. Signal name
GND pin
31 -INIT 30
-DataAvail /
32 29
DataBit-0,4
36 1284-Active 30
18 Logic-H -
35 +5V -
17 Chassis GND -
16,33,
GND -
19-30
15,34 NC -
NOTE: In/Out refers to the direction of signal flow from the printer's point of
view.
Extensibility request
The printer responds affirmatively when the extensibility request values are 00H
or 04H, that means,
00H : Request nibble mode reverse channel transfer.
04H : Request Device ID;
Return data using nibble mode reverse channel transfer.
PRODUCT DESCRIPTION
In/Out Functional description
In Not used.
Data available signal and reverse channel
Out
transfer data bit 0 or 4.
In 1284 active signal.
Out Pulled up to +5V via 3.9K ohm resistor.
Out Pulled up to +5V via 3.3K ohm resistor.
- Chassis GND.
- Signal GND.
- Not connected.
Device ID
Stylus C50
The printer sends the following device ID string when it is requested.
When IEEE1284.4 is enabled,
[00H] [4EH]
MFG
CMD
MDL
CLS
DES
When IEEE1284.4 is disabled,
[00H] [4BH]
MFG
CMD
MDL
CLS
DES
Stylus C60
The printer sends the following device ID string when it is requested.
When IEEE1284.4 is enabled,
[00H] [4EH]
MFG
CMD
MDL
CLS
DES
When IEEE1284.4 is disabled,
[00H] [4BH]
MFG
CMD
MDL
CLS
DES
Note 1: [00H] denotes a hexadecimal value of zero. (Common annotation)
Note2: MDL value depends on the EEPROM setting. (Common annotation)
Note3: CMD value depends on the IEEE1284.4 setting. (Common annotation)
INTERFACE
: EPSON;
: ESCPL2, BDC, D4;
: Stylus[SP]C50;
: PRINTER;
: EPSON[SP]Stylus[SP]C50;
: EPSON;
: ESCPL2, BDC;
: Stylus[SP]C50;
: PRINTER;
: EPSON[SP]Stylus[SP]C50;
: EPSON;
: ESCPL2, BDC, D4;
: Stylus[SP]C60;
: PRINTER;
: EPSON[SP]Stylus[SP]C60;
: EPSON;
: ESCPL2, BDC;
: Stylus[SP]C60;
: PRINTER;
: EPSON[SP]Stylus[SP]C60;
Revision C
19