Epson Stylus Photo 820 - USB Interface

EPSON Stylus PHOTO 810/820 Revision A
PRODUCT DESCRIPTION INTERFACE 22
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Device ID:
The printer sends the following device ID string when it is requested.
When IEEE1284.4 is enabled,
For EAI spec
[00H] [5AH]
MFG : EPSON;
CMD : ESCPL2, BDC, D4;
MDL : Stylus[SP]Photo[SP]820;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]820;
For EURO/ASIA spec
[00H] [5AH]
MFG : EPSON;
CMD : ESCPL2, BDC, D4;
MDL : Stylus[SP]Photo[SP]810;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]810;
When IEEE1284.4 is disabled,
For EAI spec
[00H] [57H]
MFG : EPSON;
CMD : ESCPL2, BDC;
MDL : Stylus[SP]Photo[SP]820;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]820;
For EURO/ASIA spec
[00H] [57H]
MFG : EPSON;
CMD : ESCPL2, BDC;
MDL : Stylus[SP]Photo[SP]810;
CLS : PRINTER;
DES : EPSON[SP]Stylus[SP]Photo[SP]810;
Note 1: [00H] denotes a hexadecimal value of zero.
Note2: MDL value depends on the EEPROM setting.
Note3: CMD value depends on the IEEE1284.4 setting.
1.3.3 USB Interface
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Standard : Based on
“Universal Serial Bus Specifications Rev. 1.1”
“Universal Serial Bus Device Class Definition
for Printing Devices Version 1.1”
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Bit Rate : 12Mbps (Full Speed Device)
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Data Encoding : NRZI
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Adaptable Connector : USB Series B
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Recommended Cable Length : 2 meters
Figure 1-9. USB pin Assignment
Table 1-14. Connector pin assignment and signals
Pin No. Signal name I/O Function description
1 VCC - Cable power. Max. power consumption is 2mA.
2 -Data Bi-D Data
3 +Data Bi-D Data, pull up to +3.3V via 1.5K ohm resistor.
4 Ground - Cable ground
Pin #1
Pin #3
Pin #2
Pin #4