GENERAL DESCRIPTION

1.2 SPECIFICATIONS

This section describes the specifications for DFX-8500.

1.2.1 Printing Specification

‰￿

Print method

:

Impact dot matrix

‰￿

Number of pins

: 18-pin (Refer to Figure 1-2.)

‰￿

Print pin arrangement

:

9 x 2

 

‰￿

Print pin diameter

: 0.0114 inches (0.29 mm)

‰￿

Color

:

Black

 

‰￿

Print direction

: Bi-directional with logic seeking

‰￿

Print speed and printable columns:

Refer to Table 1-2.

0.35 mm (1/72")

2.82 mm (8/72")

1.69 mm (1/15")

Figure 1-2. Printhead Pin Configuration

Table 1-2. Print Speed and Printable Columns

Print Mode

Character Pitch

Printable Columns

Print Speed (cps)

 

 

 

Normal

High Duty

High speed draft

10 cpi

136

1120

1066

Draft

10 cpi

136

840

800

 

12 cpi

163

1008

960

 

15 cpi

204

630

630

Draft condensed

17 cpi

233

720

685

 

20 cpi

272

840

800

Draft emphasized

10 cpi

136

420

400

NLQ

10 cpi

136

210

200

 

12 cpi

163

252

240

 

15 cpi

204

200

200

NLQ condensed

17 cpi

233

171

171

 

20 cpi

272

200

200

Notes 1: The line including graphic B0h - FFh or download characters or bit image data will be printed by “High duty" mode.

Notes 2: The line including special high duty download characters or bit image data will be printed by one third speed of “High duty” mode.

Notes 3: When the print head temperature rises to the upper limit, the printer stops printing. And when the print head temperature falls to the normal level, then the printer starts printing again.

Rev. B

1-3

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Epson DFX-8500 service manual Specifications, Printing Specification, Nlq