Interface Specifications; Parallel Interface (Forward Channel); Parallel Interface (Reverse Channel) - Epson LQ-2180 Service Manual

LQ-2180

1.2.2 Interface Specifications

This section only provides information which is specific to the LQ-2180.
For other information, refer to the LQ-2170 Service Manual.

1.2.2.1 Parallel Interface (Forward Channel)

† Transmission mode:
IEEE-1284 compatibility mode
† Signal level:
TTL compatible
(IEEE-1284 level 1 device)
† Pin assignment:
The pin assignment (forward channel) is
the same as for the LQ-2170 except for
the functions of the pins below:
Pin No. Function
This line is pulled up to +5 V through 3.9 k
18
This line is pulled up to +5 V through 1.0 k
35
Product Description
Ω
resistor.
Ω
resistor.
http://www.4008109977.com guangzhou epson service :020-84207330
Firmware Specifications

1.2.2.2 Parallel Interface (Reverse Channel)

† Transmission mode:
IEEE-1284 nibble mode
† Synchronization:
Refer to the IEEE-1284 specification
† Handshaking:
Refer to the IEEE-1284 specification
† Signal level:
IEEE-1284 level 1 device
† Data transmission timing: Refer to the IEEE-1284 specification
† Device ID:
[00H][4DH]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC;
MDL: LQ-2180;
CLS: PRINTER;
DES: EPSON[SP]LQ-2180;
† Pin assignment:
The pin assignment (reverse channel) is
the same as for the LQ-2170 except for
the functions of the pins below:
Pin No. Function
This line is pulled up to +5 V through 3.9 k
18
This line is pulled up to +5 V through 1.0 k
35
Revision A
Ω
resistor.
Ω
resistor.
18