– 5 –
3. GENERAL SPECIFICATIONS
3.1 Printing Specifications
Item Specifications
Printing method Impact Dot Matrix
Printing configuration 7 x 9 (half dot) or 5 x 9
Printing direction Bidirectional (See note 1)
Printing speed Approximately 3.85 lines/second
Printing lines 32 lines (when using 7 x 9 half dots)
Character dimension Width 1.2 mm (when using 7 x 9 half dots) Height 2.42 mm
Dot spacing Horizontal 0.3 mm (with full dots) Vertical 0.353 mm
Printing area 48 mm
Paper feed speed Approximately 3.77 in./sec. (continuous feeding)
Wire diameter ø 0.3 mm
Line space 1/6, 1/8, 1/12, 1/72, 1/144 inches
Feed paper more than one line before printing graphics or vertically
expanded characters.
Note 1: When performing bidirectional printing, horizontal drift is likely to occur in unidirectional printing.
Details of Character Dimentions
1 Paper width 2.25 inches (57.5 mm) 1.75 inches (44.5 mm) Optional
2 Fonts configuration (H x V) 7 x 9 5 x 9 7 x 9 5 x 9
(half) (half)
3 CPI 16.9 14.1 16.9 14.1
4 Printing column count 32 26 24 20
5 Spacing e mm 1.5 1.8 1.5 1.8
6 Character dimensions c mm 1.2 1.5 1.2 1.5
d mm 2.42 2.42 2.42 2.42
7 Dot space a mm 0.3 0.3 0.3 0.3
b mm 0.353 0.353 0.353 0.353
8 Total no. of dots 160 156 120 120
9 Printing area mm 48 46.8 36 36
Fig. 3-1 Character Size (7x 9 font)