Nibble Mode; Ecp Mode - Epson Stylus Pro 9000 - Print Engine Service Manual

EPSON Stylus Pro 9000

7.2.11.2 Nibble Mode


Transmission mode
EEE-1284 nibble mode

Synchronization
Refer to IEEE-1284 specification

Handshaking
Refer to IEEE-1284 specification

Signal level
TTL level (IEEE-1284 level 1 device)

Adaptable connector
57-30360 (Amphenol) or equivalent

Data transmission timing
Refer to IEEE-1284 specification

Extensibility request
When the printer receives the hexadecimal values 00H or 04H, the
printer responds in the following manner:
00H: The printer enters reverse channel mode, allowing data to be
sent to the host.
04H: The printer sends the device ID to the host

Device ID
[00H] denotes a hexadecimal value of zero. [SP] equals space code
20H
<00H><4EH>
MFG: EPSON
CMD: ESCPL2, BDC
MDL: Stylus[SP]Pro[SP]9000
CLS: PRINTER
DES: EPSON[SP]Stylus[SP]Pro[SP]9000
Appendix

7.2.11.3 ECP Mode


Transmission mode
IEEE-1284 ECP mode

Synchronization
Refer to IEEE-1284 specification

Handshaking
Refer to IEEE-1284 specification

Signal level
IEEE-1284 level 1 device

Adaptable connector
57-30360 (Amphenol) or equivalent

Data transfer timing
Refer to IEEE-1284 specification

Extensibility request
When the printer receives the hexadecimal values 10H or 14H, the
printer responds in the following manner:
10H: The printer enters reverse channel mode, allowing data to be
sent to the host.
14H: The printer sends the device ID to the host

Device ID
[00H] denotes a hexadecimal value of zero. [SP] equals space code
20H
<00H><4EH>
MFG: EPSON
CMD: ESCPL2, BDC
MDL: Stylus[SP]Pro[SP]9000
CLS: PRINTER
DES: EPSON[SP]Stylus[SP]Pro{SP]9000
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