Usb Interface - Epson Stylus PHOTO 2000P Service Manual

EPSON Stylus PHOTO 2000P
Extensibility Request
The printer responds affirmatively when the extensibility request values
are 00H or 04H,
00H : Request Nibble Mode Reverse Channel Transfer.
04H : Request Device ID;
Return Data Using Nibble Mode Rev Channel Transfer.
Device ID
World Standard Model
The printer sends following device ID string when it is requested.
When IEEE1284.4 is enabled,
[00H] [5CH]
MFG:EPSON;
CMD:ESCPL2,BDC,D4;
MDL:Stylus[[SP]Photo[SP]2000P;
CLS:PRINTER;
DES:EPSON[SP]Stylus[SP]Photo[SP]2000P;
When IEEE1284.4 is disabled,
[00H] [59H]
MFG:EPSON;
CMD:ESCPL2,BDC;
MDL:Stylus[SP]Photo[SP]2000P;
CLS:PRINTER;
DES:EPSON[SP]Stylus[SP]Photo[SP]2000P;
Product Descriptions

1.3.1.3 USB interface

Standard : based on
"Universal Serial Bus Specifications Revision 1.0"
"Universal Serial Bus Device Class Definition for
Printing Devices Version 1.0"
Bit rate : 12Mbps (Full Speed Device)
Data encoding : NRZI
Adaptable connector:
Recommended cable length:
Table 1-10. Connector pin assignment and signals
Signal
Pin No. In/Out
name
1 VCC
2 -Data bi-directional
3 +Data bi-directional
4 Ground
Figure 1-2. USB Pin Assignment
Interface
USB Series B
2 meters
Function description
- Cable power. Maximum power
consumption is 2mA
data
data, pull up to +3.3V via 1.5K ohm
resistor
- Cable ground
Pin #2 Pin #1
Pin #3 Pin #4
Revision A
19