iTherm
®
280 Programmer’s Guide Specifications and Requirements
28-07764 Rev C Page 27
• 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)
Paper
Manufacturer
Kanzaki P-300 Kanzaki P-310 Appleton Alpha 400-2.3
Basis Weight 14.1 lbs. 14.2 lbs. 14.5 lbs.
Caliper .00225 mils .00226 mils .00235 inches
Image color black Black Black
Brightness 85% 85% 87%
Activation Temp. 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
Smoothness (bekk) 325 sec. Ave. 325 sec.Ave. 200 (bekk).
Table 3: Paper Grades-Monochrome
Thermal Paper Grades (color)
Paper
Manufacturer
Kanzaki P-320 RB Kanzaki P-320 BB Appleton Dual RB Appleton Dual BB
Basis Weight 14.6 lbs. 14.6 lbs. 15.6 lbs. 15.6 lbs.
Caliper .00227 mils .00227 mils .00235 mils .00235 mils
Brightness 87 % 87 % 89.5 % 87.8 %
Image color Red/Black: Blue/Black Red/Black: Blue/Black
Thermal
Response
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
Smoothness
(bekk)
500 sec. ave. 500 sec. ave. 250 sec./min. 250 sec./min.
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.
