Specifications; Hardware Specifications; Figure 1-2. Printhead Pin Configuration - Epson LQ-2550 Technical Manual

1.2 SPECIFICATIONS

The LQ-2550 communicates with a wide variety of host computers, with the aid of the optional Identity
Modules. However, this section describes the specifications for the printer without the Identity Module.
Specifications not affected by firmware (hardware specifications) are the same whether or not the
Identity Module is installed.

1.2.1 Hardware Specifications

Printing
Method
Pin Configuration
Serial, impact dot matrix
See Figure 1-2 (1 2x2 staggered, diameter: 0.2 mm).
7
13
15
17
21
23

Figure 1-2. Printhead Pin Configuration

1-3
0
2
\
4
6
8
10
12
14
16
20
22
24
REV.-A