Specifications
Printing
Printing Technology | Direct Thermal |
Print Resolution | 203 dpi |
Print Speed (depending on the media used) *1 | Maximum 5 ips (127 mm/s) Maximum 5 ips (127 mm/s) (When the Label Peeler is used.) Maximum 3 ips (76.2 mm/s) (When the Linerless Platen Upgrade is used.) |
Maximum Print Width |
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Maximum Print Length |
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Minimum Print Length |
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RJ-3235B/RJ-3255WB: When using Brother's printing test data <2.99" x 1.14" (76 mm x 29 mm), print coverage 10%> and printing continuously with a USB connection using a new fully charged lithium-ion battery in an environment of 73.4°F (23°C).
RJ-4235B/RJ-4255WB: When using Brother's printing test data <4.02" x 1.14" (102 mm x 29 mm), print coverage 7%> and printing continuously with a USB connection using a new fully charged lithium-ion battery in an environment of 73.4°F (23°C).
Printer Size
Weight (including the rechargeable Li-ion battery) |
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Dimensions |
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Interface
USB | USB Ver.2.0 (Full Speed) (Type-C) |
Bluetooth | SPP, OPP, HCRP (Bluetooth Classic), GATT (Bluetooth Low Energy) |
Ethernet | 10 or 100 Mbps Ethernet (Enabled automatically when the printer is placed on the Active Docking Station) |
Wireless LAN (5 GHz) | IEEE 802.11 a/n (Infrastructure Mode) |
Wireless LAN (2.4 GHz) | IEEE 802.11 b/g/n (Infrastructure Mode) IEEE 802.11 g/n (Wireless Direct mode) |
Protocol (IPv4) | ARP, RARP, BOOTP, DHCP, APIPA(Auto IP), WINS/NetBIOS Name Resolution, DNS Resolver, mDNS, LLMNR Responder, LPR/LPD, Custom Raw Port/Port9100, IPP/IPPS, FTP Client and Server, SNMPv1/v2c/v3, HTTP/HTTPS Client and Server, TFTP Server, ICMP, Web Services (Print), SNTP Client |
Protocol (IPv6) | NDP, RA, DNS Resolver, mDNS, LLMNR Responder, LPR/LPD, Custom Raw Port/Port9100, IPP/IPPS, FTP Client and Server, SNMPv1/v2c/v3, HTTP/HTTPS Client and Server, TFTP Server, ICMPv6, Web Services (Print), SNTP Client |
Network Security (Wired) | SSL/TLS1.0/1.1/1.2/1.3 (HTTPS, IPPS) SNMPv3, 802.1x (EAP-MD5, EAP-FAST, PEAP, EAP-TLS, EAP-TTLS) |
Network Security (Wireless) | SSL/TLS1.0/1.1/1.2/1.3 (HTTPS, IPPS) SNMPv3, 802.1x (EAP-FAST, PEAP, EAP-TLS, EAP-TTLS) |
Wireless Network Security | WEP 64/128 bit, WPA-PSK (TKIP/AES), WPA2-PSK (AES), WPA3-SAE (AES) |
Wireless Certification | Wi-Fi Certification Mark License (WPA™/WPA2™/WPA3™ - Enterprise, Personal), Wi-Fi Protected Setup™ (WPS) Identifier Mark License |
Environment
Operating Temperature |
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Operating Humidity *2 | From 10% to 90% From 10% to 50% (When the Label Peeler/Linerless Platen Upgrade is used. |
No Condensation, Maximum wet bulb temperature: 80.6°F (27°C)
Power Supply
Rechargeable Li-ion Battery | Rechargeable Li-ion battery: 7.2 V |
AC Adapter (Optional) | AC Adapter (15 V) |
Car Adapter (Optional) | Car Adapter or Wired type (12 V (DC)) |
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Charging time *3 |
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RJ-3235B/RJ-3255WB: Using Brother's printing test data <2.99" x 1.14" (76 mm x 29 mm), printing rate 10%> at 73.4°F (23°C).
RJ-4235B/RJ-4255WB: Using Brother's printing test data <4.02" x 1.14" (102 mm x 29 mm), print coverage 7%> at 73.4°F (23°C).
When using a fully charged new rechargeable battery and continuously printing via USB connection. However, the above information cannot be guaranteed as it changes depending on printing conditions, usage environment, battery deterioration, etc.
When the printer is turned off, a new Rechargeable Li-ion Battery is used, and charged at 73.4°F (23℃).
Charging time from when Recharge Battery! appears on the LCD to full charge.
Media Specification
The media material may affect the print quality.
In order to achieve optimum print results, we recommend using genuine Brother media.
Media Type | Receipt, Gap/Black mark Label, Tag, Linerless (Optional) |
Media Width |
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Thickness | Receipt: From 2.2 mil to 3.5 mil (From 0.058 mm to 0.090 mm) Tag: From 3.5 mil to 5.5 mil (From 0.090 mm to 0.135 mm) Label: From 3.1 mil to 6.6 mil (From 0.080 mm to 0.170 mm) |
Roll Outside Diameter (maximum)
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Media Roll Holder Core Diameter |
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Media Sensor | Transmissive, Reflective |
Others
Drop Protection *1 |
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Sealing | IP54 rated |
Vibration/Shock | MIL-STD-810G |
Multiple drops to concreate, under controlled enviroment.
Compatible Operating Systems
For the latest list of compatible software, visit support.brother.com/os.



