Usb Interface - Epson PH890 Service Manual

EPSON Stylus PHOTO 890/1290
o
Device ID:
The printer sends the following device ID string when requested.
n
When IEEE1284.4 is enabled,
*1
<00H><5AH> / <00H><5CH>
MFG: EPSON
CMD: ESCPL2,BDC,D4
MDL: Stylus[SP]Photo[SP]890
/Stylus[SP]Photo[SP]1290
CLS: PRINTER
DES: EPSONStylus[SP]Photo[SP]890
/EPSONStylus[SP]Photo[SP]1290
n
When IEEE1284.4 is enabled,
*1
<00H><57H> / <00H> <59H>
MFG: EPSON
CMD: ESCPL2,BDC,D4
MDL: Stylus[SP]Photo[SP]890
/Stylus[SP]Photo[SP]1290
CLS: PRINTER
DES: EPSONStylus[SP]Photo[SP]890
/EPSONStylus[SP]Photo[SP]1290
*1
: Stylus PHOTO 890 only
*2
: Stylus PHOTO 1290 only
NOTE 1:[00H] denotes a hexadecimal value of zero.
NOTE 2:MDL value depends on the EEPROM setting.
NOTE 3:CMD value depends on the IEEE1284.4 setting.
PRODUCT DESCRIPTIONS
*2
*2

1.3.3 USB Interface

o
Standard:
o
Bit rate:
o
Data encoding:
o
Adaptable connector:
o
Recommended cable length:2 meters
Table 1-14. Connector Pin Assignment and Signals
Pin No. Signal Name
1 VCC
2 -Data
3 +Data
4 Ground
Figure 1-8. USB Pin Assignment
Interface
Based on:
"Universal Serial Bus Specifications Rev. 1.1"
"Universal Serial Bus Device Class Definition for
Printing Devices Version 1.1"
12Mbps (Full Speed Device)
NRZI
USB Series B
I/O Function Description
Cable power. Max. power
-
consumption is 2mA.
Bi-D Data
Data, pull up to +3.3 V via 1.5K
Bi-D
ohm resistor.
- Cable ground
Pin #2
Pin #1
Pin #3 Pin #4
Revision B
26