Printer specifications

LEDs Status LED (blue/green/red)
Charging LED (orange)
Printing Method Direct thermal printing with a line thermal print head
Printing Resolution 300 dpi × 300 dpi
Print speed 15 seconds/sheet
(standard text on thermal paper with 7 % coverage at an ambient temperature of 25 °C/77 °F)
No. of pages that can be rinted 100 or more during continuous printing with a fully charged battery. Using Bluetooth sleep mode will affect this figure. (Based on 7% coverage at an
ambient temperature of 25 °C/77 °F.) (Standard paper manufactured by Brother: A7 thermal)
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 AC adapter for charging, lithium ion battery 7.4 V
Interface Complies with USB Ver. 2.0 (Full Speed) and compliant with Bluetooth ver. 2.1 + EDR class 2 serial port profile supported
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 the lithium ion battery and a paper cassette containing 50 sheets of plain thermal paper)