Epson 680Pro Service Manual - Page 18

USB Interface, USB Pin Assignment, Table 1-8. Connector Pin Assignment and Signals

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EPSON Stylus COLOR 680/777/777i Device ID: The printer sends the following device ID string when requested. When IEEE1284.4 is enabled, [00H] [5AH] MFG: EPSON; CMD: ESCPL2, BDC, D4; MDL: Stylus[SP]COLOR[SP]XXX*; CLS: PRINTER; DES: EPSON[SP]Stylus[SP]COLOR[SP]XXX*; When IEEE1284.4 is disabled, [00H] [57H] MFG: EPSON; CMD: ESCPL2, BDC; MDL: Stylus[SP]COLOR[SP]XXX*; CLS: PRINTER; DES: EPSON[SP]Stylus[SP]COLOR[SP]860/1160; *XXX is 777 (for EAI spec) or 680 (for EURO/ASIA spec) 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. Revision B 1.3.3 USB Interface Standard: Bit Rate: Data Encoding: Adaptable Connector: Recommended Cable Length: Based on: "Universal Serial Bus Specifications Rev. 1.0" "Universal Serial Bus Device Class Definition for Printing Devices Version 1.0" 12Mbps (Full Speed Device) NRZI USB Series B 2 meters Pin No. 1 2 3 4 Table 1-8. Connector Pin Assignment and Signals Signal Name I/O Function Description VCC - Cable power. Max. power consumption is 2mA. -Data Bi-D Data +Data Bi-D Data, pull up to +3.3 V via 1.5K ohm resistor. Ground - Cable ground Pin #2 Pin #1 Pin #3 Pin #4 Figure 1-4. USB Pin Assignment PRODUCT DESCRIPTION INTERFACE 18

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EPSON Stylus COLOR 680/777/777i
Revision B
PRODUCT DESCRIPTION
INTERFACE
18
Device ID:
The printer sends the following device ID string when requested.
When IEEE1284.4 is enabled,
[00H] [5AH]
MFG:
EPSON;
CMD:
ESCPL2, BDC, D4;
MDL:
Stylus[SP]COLOR[SP]XXX*;
CLS:
PRINTER;
DES:
EPSON[SP]Stylus[SP]COLOR[SP]XXX*;
When IEEE1284.4 is disabled,
[00H] [57H]
MFG:
EPSON;
CMD:
ESCPL2, BDC;
MDL:
Stylus[SP]COLOR[SP]XXX*;
CLS:
PRINTER;
DES:
EPSON[SP]Stylus[SP]COLOR[SP]860/1160;
*XXX is 777 (for EAI spec) or 680 (for EURO/ASIA spec)
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
Standard:
Based on:
“Universal Serial Bus Specifications Rev. 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:
USB Series B
Recommended Cable Length:
2 meters
Figure 1-4. USB Pin Assignment
Table 1-8. 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 +3.3 V via 1.5K ohm resistor.
4
Ground
-
Cable ground
Pin #1
Pin #3
Pin #2
Pin #4