Printer specifications

Indicators Status indicator light (blue/green/red)
Charging indicator light (orange)
Printing Method Direct thermal printing with a line thermal print head
Printing Resolution 300 dpi × 300 dpi
Print speed 15 seconds/sheet approx.
(standard text on thermal paper with 7% coverage at an ambient temperature of 25 °C/77 °F)
No. of printable pages Up to 100 during continuous printing with a fully charged battery. *1
Using Bluetooth sleep mode affects this figure.
(standard text on thermal paper with 7% coverage at an ambient temperature of 25 °C/77 °F)
Paper supply method Brother paper cassette, automatic paper feed mechanism
Paper Brother A7 cut paper (74 mm × 105 mm/2.9" × 4.1")
Print area 69 mm × 100 mm/2.7" × 3.9" (C51: 62 mm × 95 mm/2.4" × 3.7")
Power supply Li-ion battery (BT-100: 7.2V), charging adapter
Interface Complies with USB Ver. 2.0 (Full Speed) and compliant with Bluetooth ver. 2.1 + EDR class 2 SPP iAP
Dimensions 100 mm (W) × 160 mm (D) × 17.5 mm (H)/ 3.9" (W) × 6.3" (D) × 0.7" (H)
(not including projection)
Weight 300 g/0.66 lbs. (including rechargeable Li-ion battery and a paper cassette containing 50 sheets of plain thermal paper)
*1 Continuous printing of the Brother standard pattern (7% coverage) on A7 thermal paper C-11 with a new fully charged battery, using the USB interface at an ambient temperature of 25 °C/77 °F. At a lower ambient temperature, fewer pages can be printed.