TransAct Ithaca 280 - Cash Drawer; Interface Description; Cash Drawer Pin Assignments

Specifications and Requirements iTherm
®
280 Programmer’s Guide
Page 14 Rev K
General Specifications
Printing Specifications
Printing method: Thermal Sensitive Line Dot System
Vertical/Horizontal dot pitch: 0.125 mm.
Resolution: 8 dots per mm (203 DPI)
Line feed pitch: 3.2 mm. (.125 inches)
Print zone (maximum) 80 mm (3.15 inch)
Print speed (monochrome): 8 inches per second
Print Speed (two color): 4 inches per second
Number of print elements: 640 dots in-line
Character Pitch
The iTherm
®
280 has 3 basic resident fonts, as well as downloadable fonts. The
smallest internal font is a 10 x 24 font and is typically printed in pitches from 16 to 20
characters per inch (CPI). The next larger font is 13 x 24, and is typically printed in
pitches from 14 to 16 CPI. The largest font is 15 x 24 and is typically printed in pitches
from 10 to 14 CPI.
The printer always prints at 203 dots per inch (dpi). Adding or subtracting space between
characters achieves different character pitches. As each dot has a fixed size and
position, only specific pitches are possible. The following table defines the fonts and
pitches possible with each.
Character Cell (H x W)
10 x 24 Font
(W x H)
13 x 24 Font
(W x H)
15 x 24 Font
(W x H)
Horizontal Width
10 Dots
0.0493 inches
13 Dots
0.0640 inches
15 Dots
0.0739 inches
Vertical Height
24 Dots
0.118 Inches
24 Dots
0.118 Inches
24 Dots
0.118 Inches
Character spacing in Characters per Inch (CPI)
Pitch at native cell size
20.30
15.62
13.5
5 dot Removed
40.60
25.38
20.30
4 dot Removed
33.83
22.56
18.45
3 dot Removed
29.00
20.30
16.92
2 dot Removed
25.38
18.45
15.62
1 dot Removed
22.56
16.92
14.50
0 dot added
20.30
15.62
13.53
1 dot added
18.45
14.50
12.69
2 dots added
16.92
13.53
11.94
3 dots added
15.62
12.69
11.28
4 dots added
14.50
11.94
10.68
5 dots added
13.53
11.28
10.15
6 dots added
12.69
10.68
9.67
NOTE: Shaded Pitches are not recommended.
Table 1 Possible Character Pitches