Maintenance of your printer may be carried out as required. However, 
some environments may require carrying maintenance out more frequently 
(for example, dusty environments).
 Print Head Maintenance
Wipe the print head with a dry, lint-free cloth moistened with isopropyl alcohol 
or ethanol. Carry out the maintenance frequently.
 Roller Maintenance
Wipe the roller with a dry, lint-free cloth moistened with isopropyl alcohol or 
ethanol. After cleaning the roller, make sure that no lint or other material 
remains on the roller.
 Paper Exit Slot Maintenance
If adhesive accumulates at the paper exit slot and media becomes jammed, 
clean the paper exit slot with a cloth slightly moistened with isopropyl alcohol.
Maintenance
1 Print head
2 Roller
3 Paper exit slot
Product Specifications
Model Name RJ-2030/2050/2140/2150
Dimensions RJ-2030/2050
Approximately 100 (D) x 122 (W) x 57 (H) mm
RJ-2140/2150
Approximately 100 (D) x 151 (W) x 73 (H) mm
Weight RJ-2030/2050
Approximately 465 g (including battery)
RJ-2140/2150
Approximately 545 g (including battery)
Printing
Media size RJ-2030/2050
58 mm
RJ-2140/2150
25.4 – 58 mm
Method Direct thermal printing
Interface
USB USB Ver. 2.0 (Full Speed) (mini-B)
Bluetooth 
(RJ-2030/2050/2150 only)
RJ-2030
Ver 2.1 + EDR
Supported profiles: SPP, OPP, BIP, HCRP
RJ-2050/2150
Ver 2.1 + EDR
Supported profiles: SPP, OPP, BIP, HCRP
Supported protocol: iAP
Wi-Fi 
(RJ-2050/2140/2150 only)
• Wireless Direct: IEEE 802.11g/n
• Ad-hoc Mode: IEEE 802.11b/g/n
• Infrastructure Mode: IEEE 802.11b/g/n
Environment
Operating temperature Printing: -10 – 50°C
Charge: 5 – 35°C
Operating humidity 10 – 90% (No condensation, Maximum wet bulb 
temperature: 27 °C)
Storage temperature -20 – 60°C
Storage humidity 10 – 90% (No condensation, Maximum wet bulb 
temperature: 45 °C)