Specifications and Requirements iTherm
®
280 Programmer’s Guide
Page 20 Rev K
Once narrow paper has been used, some part of the print head always contacts the
platen. If 80 mm. paper is used after setting up and running 58 mm. paper, the head
or the cutter blade may be worn out. Never change the paper width from narrow to
wide (58 to 80 mm.) once you set the paper width to narrow (58 mm.).
Media Specifications
Receipt Paper
Paper feed method Friction feed
Paper feed pitch Default - 1/8 inch
Paper width 80 mm: 79.5 +/- 0.5 mm. (3.13 +/- 0.02 inches)
58 mm: 57.5 +/- 0.5 (2.26 +/- 0.02 inches)
Roll diameter 101.6 mm. (4.0 inches) Max.
Paper thickness 0.06 to 0.09 mm. (.00225 to .0035 inches)
Roll paper core Inside diameter .445 to .635 inches
Outside diameter .730 to .860 inches
Roll footage 400 feet (min.)
Thermal Paper Grades (Monochrome)
Initial: 74+/-5°C
Effective: 87 +/- 5°C
Optimum: 100 +/- 5°C
Initial:73 +/-5°C
Effective: 83 +/- 5°C
Optimum: 88 +/- 5°C
Initial:77.2°C
Optimum: 104.8 +/- 5°C
Table 6: Paper Grades-Monochrome
Thermal Paper Grades (color)
Initial(Red):80 +/-5°C
Initial(B):98 +/-5°C
Effective(Red): 87 +/- 5°C
Effective(B): 116 +/- 5°C
Optimum(Red):100 +/-5°C
Optimum(B):130 +/-5°C
Initial(Blue):74 +/-5°C
Initial(B):90 +/-5°C
Effective(Blue): 80 +/- 5°C
Effective(B): 120 +/- 5°C
Optimum(Blue):90 +/-5°C
Optimum(B):130 +/-5°C
Initial(Red):77.8 +/-5°C
Initial(B):77.8 +/-5°C
Optimum(Red):90.5 +/-5°C
Optimum(B):103.3 +/-5°C
Initial(Blue):69.4 +/-5°C
Initial(B):69.4 +/-5°C
Optimum(Blue):82 +/-5°C
Optimum(B):118 +/-5°C
Table 8: Paper Grades-Color
Paper Usage Precautions:
The life of the thermal head, when two-color paper is used, is reduced to half of the
life when single-color thermal paper is used.