Brother TD4550DNWB vs Brother TD4420DNC: Specification Comparison
Both the TD4550DNWB and TD4420DNC are Brother 4.3-inch direct thermal desktop receipt and label printers sharing the same form factor, media compatibility (labels, tags, wristbands, receipts), print width, memory configuration, and programming language support. A buyer evaluating either unit is selecting a desktop thermal printer for retail, healthcare, or warehouse label/receipt output. The key trade-offs center on print resolution versus print speed, wireless connectivity options, and the presence of an integrated cutter — three dimensions that meaningfully separate the two models for different deployment scenarios.
In This Guide
- Which printer delivers the right balance of print resolution and throughput for your output requirements?
- Which printer's connectivity options fit your wired, wireless, or mixed-network deployment?
- Which printer's media handling and finishing capabilities match your workflow?
- Which should you choose: the TD4550DNWB or the TD4420DNC?
- Side-by-Side Specs
- FAQ
Which printer delivers the right balance of print resolution and throughput for your output requirements?
The TD4550DNWB prints at 300 dpi and 6 ips, while the TD4420DNC prints at 203 dpi and 8 ips. The TD4550DNWB's 300 dpi output is suited for applications requiring fine detail — dense barcodes, small fonts, wristband text, or compliance labels where scan reliability at close read distances matters. The TD4420DNC's 203 dpi is standard for most retail and warehouse barcode label applications and is sufficient for 1D and common 2D codes at typical scanner distances.
The TD4420DNC's 8 ips throughput is 33% faster than the TD4550DNWB's 6 ips. In high-volume batch printing environments — shipping labels, POS receipt queues, or ticket printing — the TD4420DNC will complete runs faster. For moderate-volume environments where label accuracy or legibility outweighs raw throughput, the TD4550DNWB's resolution advantage is more meaningful.
Which printer's connectivity options fit your wired, wireless, or mixed-network deployment?
The TD4550DNWB supports USB, Serial, Bluetooth BLE, WLAN (Wi-Fi), and LAN (Ethernet) — a full five-interface stack. This makes it deployable in purely wireless environments (Bluetooth to a mobile host, Wi-Fi to a network), wired Ethernet environments, or hybrid setups. The 4.3-inch LCD display also enables on-device network and media configuration without requiring a tethered host PC.
The TD4420DNC supports USB, Serial, and LAN (Ethernet) only. Wi-Fi and Bluetooth are not listed in its specifications. For fixed POS terminals, wired WMS stations, or networked print servers where wireless is not required, the TD4420DNC's interface set is adequate. Buyers needing cordless mobility, Bluetooth pairing to tablets or handhelds, or Wi-Fi roaming should note that the TD4420DNC does not spec those options.
Which printer's media handling and finishing capabilities match your workflow?
The TD4420DNC includes an integrated label cutter, which automates separation of individual labels or receipts from continuous media rolls. This is directly relevant for retail receipt printing, batch label runs, or any application where manual tearing introduces errors or slows throughput. No cutter is listed in the TD4550DNWB's specifications.
Both printers share an identical media width range of 0.75 to 4.65 inches and support labels, tags, wristbands, and receipts. Both also share the same memory configuration: 64 MB Flash (40 MB template/database) and 256 MB SDRAM. The TD4420DNC is slightly heavier at 5.3 lbs versus the TD4550DNWB's 4.58 lbs, and marginally deeper at 9.50 inches versus 8.82 inches — likely reflecting the cutter mechanism. Programming language support overlaps substantially, with the TD4420DNC additionally listing ESC/P alongside the shared ZPL II, CPCL, Raster Graphics, and Text modes.
Which should you choose: the TD4550DNWB or the TD4420DNC?
Our take: The TD4550DNWB is the stronger choice when wireless connectivity, higher print resolution, or on-device configuration are required. It offers 300 dpi versus the TD4420DNC's 203 dpi, adds Wi-Fi and Bluetooth BLE to a five-interface stack versus the TD4420DNC's three wired-only interfaces, and includes a 4.3-inch LCD for standalone setup. The TD4420DNC is the stronger choice when maximum throughput and automated media finishing are the priority: it prints at 8 ips versus 6 ips and includes an integrated cutter not present on the TD4550DNWB. It also adds ESC/P to its programming language list. Buyers deploying into fixed wired POS or warehouse stations running high-volume receipt or label batches will favor the TD4420DNC. Buyers deploying into healthcare, field service, or mixed wired-wireless environments requiring fine label detail or Bluetooth/Wi-Fi connectivity will favor the TD4550DNWB.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Brother TD4550DNWB | Brother TD4420DNC |
|---|---|---|
| Print Method | Direct Thermal | Direct Thermal |
| Print Width | 4.27" | 4.27" |
| Media Width Range | 0.75" – 4.65" | 0.75" – 4.65" |
| Print Speed | 6 ips | 8 ips |
| Print Resolution | 300 dpi | 203 dpi |
| Interfaces | USB, Serial, Bluetooth BLE, WLAN, LAN | USB, Serial, LAN |
| Wi-Fi | Yes (WLAN) | — |
| Bluetooth | Yes (BLE) | — |
| Integrated Cutter | — | Yes |
| Display | 4.3" LCD | 4.3" |
| Media Types | Labels, Tags, Wristbands, Receipts | Labels, Tags, Wristbands, Receipts |
| Programming Languages | ZPL II, CPCL, Raster Graphics, Text | ZPL II, CPCL, Raster Graphics, Text, ESC/P |
| Memory | 64 MB Flash / 256 MB SDRAM | 64 MB Flash / 256 MB SDRAM |
| Weight | 4.58 lbs | 5.3 lbs |
| Dimensions (W × D × H) | 7.08" × 8.82" × 6.10" | 7.08" × 9.50" × 6.10" |
| Form Factor | Desktop | Desktop |
Frequently Asked Questions
Which should you choose: the TD4550DNWB or the TD4420DNC?
The TD4550DNWB is the stronger choice when wireless connectivity, higher print resolution, or on-device configuration are required. It offers 300 dpi versus the TD4420DNC's 203 dpi, adds Wi-Fi and Bluetooth BLE to a five-interface stack versus the TD4420DNC's three wired-only interfaces, and includes a 4.3-inch LCD for standalone setup. The TD4420DNC is the stronger choice when maximum throughput and automated media finishing are the priority: it prints at 8 ips versus 6 ips and includes an integrated cutter not present on the TD4550DNWB. It also adds ESC/P to its programming language list. Buyers deploying into fixed wired POS or warehouse stations running high-volume receipt or label batches will favor the TD4420DNC. Buyers deploying into healthcare, field service, or mixed wired-wireless environments requiring fine label detail or Bluetooth/Wi-Fi connectivity will favor the TD4550DNWB.
Does either the TD4550DNWB or TD4420DNC support wireless printing?
Yes, but only the TD4550DNWB. Its specs list Wi-Fi (WLAN) and Bluetooth BLE in addition to USB, Serial, and Ethernet LAN. The TD4420DNC's specs list only USB, Serial, and Ethernet LAN — no wireless interfaces are specified.
Which printer is better for high-volume label or receipt runs — the TD4550DNWB or TD4420DNC?
The TD4420DNC has two advantages for high-volume runs: it prints at 8 ips versus the TD4550DNWB's 6 ips (33% faster), and it includes an integrated cutter that automates media separation. For sustained batch output at a fixed wired station, the TD4420DNC is the more efficient choice. The TD4550DNWB's 300 dpi is valuable for detail-sensitive labels but does not offset the throughput and finishing gap in bulk scenarios.
Is the print quality meaningfully different between the TD4550DNWB and TD4420DNC?
Yes. The TD4550DNWB prints at 300 dpi; the TD4420DNC prints at 203 dpi. The 300 dpi output produces finer detail, which is relevant for small-font text, dense barcodes, wristband patient data, or compliance labels requiring high scan reliability at short read distances. For standard retail shelf labels, shipping labels, and typical 1D barcodes, 203 dpi is generally sufficient. The right resolution depends on the specific label content and scanning environment.
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