6-inch labels at 12 ips
Prints up to 168 mm wide at up to 305 mm/s (12 ips) at 203 dpi, or 254 mm/s (10 ips) at 300 dpi. It takes media from 51 mm to 178 mm wide, for carton, pallet and drum labels.
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Zebra · Industrial barcode label printer
A 6-inch industrial label printer with a metal frame, up to 12 ips and an optional UHF RFID encoder, for carton, pallet, drum and asset labels in factories, warehouses and distribution centres.
ZT421 price in India: ask our team for today's competitive price. Share your requirement and budget, and we will help you choose the right configuration and send a written quotation with current pricing and delivery time.
Covered by the manufacturer's warranty. The warranty period, terms and conditions are as declared by Zebra.
Already use one? Need service? Log a service call for the Zebra ZT421
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Why the ZT421
The ZT421 is the 6-inch model in Zebra's ZT400 Series, alongside the 4-inch ZT411, and the model Zebra names to follow the ZT420. It prints thermal transfer or direct thermal on a metal frame, and its RFID version encodes UHF tags as it prints.
Prints up to 168 mm wide at up to 305 mm/s (12 ips) at 203 dpi, or 254 mm/s (10 ips) at 300 dpi. It takes media from 51 mm to 178 mm wide, for carton, pallet and drum labels.
The RFID model encodes UHF EPC Gen 2 V2.1 / ISO 18000-63 tags at a minimum pitch of 16 mm. Zebra's integrated RFID system can be upgraded in the field, and Adaptive Encoding Technology picks the encode settings, so there are no placement charts to follow.
USB 2.0, RS-232 serial, 10/100 Ethernet, Bluetooth and two USB Host ports are standard. Two open slots take Wi-Fi 6 (802.11ax) with Bluetooth 5.3, Wi-Fi 5 with Bluetooth 4.2, parallel, a second Ethernet card or an applicator interface.
A 4.3-inch colour touch screen with an icon menu sets language, media and connectivity without a PC, and colour-coded alerts show from a distance when the printer is paused or needs attention.
Media rolls up to 203 mm across on a 76 mm core and 450 m ribbons load from the side, along a colour-coded, lit path. The bi-fold door needs less room to open than a single swing door.
It runs ZPL, ZPL II, EPL2 (203 dpi models) and XML-enabled printing, the languages used by ZT420 and older Zebra industrial fleets. ZBI 2.0 is an option for stand-alone applications.
Used in
For buyers in India
These are the points buyers in India ask us about the ZT421. Mention the ones that apply to you when you request a quote.
Confirm the India setting before you order a ZT421 RFID model: Zebra RFID printers ask for an RFID country code at first power-up, with choices that depend on the region the unit was built for. Order tags for India's 865-868 MHz UHF RFID band; the ZT421 RFID model encodes UHF EPC Gen 2 V2.1 (ISO 18000-63) tags at a pitch as small as 16 mm.
On 4 × 6 inch stock made with the 152.4 mm side across, the ZT421 feeds each label only 101.6 mm long. That works because it prints 168 mm wide on media up to 178 mm. At 305 mm/s (12 ips, 203 dpi), that label plus a 3 mm gap takes about 0.34 s, roughly 10,500 labels an hour of pure print time.
Feed the ZT421 from a UPS or voltage stabiliser where mains runs high. Its auto-detecting supply is rated 100-240 VAC, 50-60 Hz.
Specifications
| General | |
|---|---|
| Operating system | Link-OS |
| Print methods | Thermal transfer and direct thermal printing |
| Construction | Metal frame and bi-fold metal media cover with enlarged clear viewing window; side-loading supplies path; thin film printhead with E3 Element Energy Equalizer |
| Memory | 256 MB SDRAM memory (8 MB user available); 512 MB on-board linear Flash memory (64 MB user available) |
| User interface | 4.3 in. colour touch display with icon menu; bi-coloured status LEDs |
| Programming languages | ZPL and ZPL II; EPL and EPL2 with line mode (203 dpi models only); XML-enabled printing; ZBI 2.0 optional (field installed via activation file) |
| Software | Zebra DNA for Printers; ZebraDesigner Essentials label design tool (free); MDM connectors for AirWatch and SOTI MobiControl |
| Printing | |
| Resolution | 203 dpi/8 dots per mm; 300 dpi/12 dots per mm (optional) |
| Maximum Print Width | 6.6 in./168 mm |
| Maximum Print Speed | 12 ips/305 mm per second at 203 dpi; 10 ips/254 mm per second at 300 dpi |
| Programmable print speeds | 203 dpi: 2.4 in. to 12 in. (61-305 mm) per second; 300 dpi: 2.4 in. to 10 in. (61-254 mm) per second; in 1 in. increments |
| Media Sensors | Adjustable dual media sensors: transmissive and reflective |
| Print Length | Maximum continuous: 203 dpi: 102 in./2591 mm, 300 dpi: 45 in./1143 mm; maximum non-continuous label length: 39 in./991 mm |
| Barcode ratios | 2:1, 7:3, 5:2 and 3:1 |
| Linear Barcodes | Code 11, Code 39, Code 93, Code 128 with subsets A/B/C and UCC Case Codes, ISBT-128, UPC-A, UPC-E, EAN-8, EAN-13, UPC and EAN 2- or 5-digit extensions, Plessey, Postnet, Standard 2-of-5, Industrial 2-of-5, Interleaved 2-of-5, Logmars, MSI, Codabar, Planet Code |
| Two Dimensional Barcodes | Codablock, PDF417, Code 49, DataMatrix, MaxiCode, QR Code, TLC 39, MicroPDF, RSS-14 (and composite), Aztec |
| Fonts and graphics | 16 resident expandable ZPL II bitmap and two resident scalable ZPL fonts; Asian and other international scalable and smooth bitmapped fonts; Unicode for multi-language printing; downloadable graphics, fonts, templates and formats; 64 MB user-available non-volatile storage |
| Media | |
| Maximum Media Width | 2.00 in./51 mm to 7.0 in./178 mm tear/cutter; 2.00 in./51 mm to 6.75 in./171 mm peel/rewind |
| Minimum label length | 0.5 in./12.7 mm in tear-off, peel and rewind modes; 1.00 in./25.4 mm with cutter |
| Maximum Media Roll Size | 8.0 in./203 mm O.D. on a 3 in./76 mm I.D. core |
| Thickness | 0.0023 in./0.058 mm to 0.010 in./0.25 mm |
| Media Types | Continuous, die-cut, notch, black-mark |
| Ribbon Standard Length | 1476 ft./450 M |
| Ribbon Width | 2.00 in./51 mm to 6.85 in./174 mm |
| Ribbon Core I.D. | 1.0 in./25 mm |
| Ribbon roll | 450 m: 3.2 in./81.3 mm O.D. on a 1.0 in./25.4 mm I.D. core; wound ink-side out |
| Connectivity | |
| Standard | USB 2.0 high-speed; RS-232 serial (DB9F); 10/100 Ethernet; Bluetooth 4.1; dual USB Host |
| Connectivity options | Two open communication slots for internal cards: dual band 802.11ax Wi-Fi and Bluetooth 5.3; dual band 802.11ac Wi-Fi and Bluetooth 4.2; Parallel (bi-directional interface); 10/100 Ethernet; Applicator interface |
| Print Touch | Pairs with NFC-enabled phones and tablets by tapping; dynamic QR codes link to how-to videos and support |
| Options and accessories | |
| RFID | Fully integrated UHF EPC Gen 2 V2.1 / ISO/IEC 18000-63 and RAIN RFID reader/encoder; user-upgradable in the field; prints and encodes tags at a minimum pitch of 0.6 in./16 mm; Adaptive Encoding Technology selects the encode settings (the on-metal RFID kit is for the ZT411 only) |
| Media handling | Rewind: internally rewinds a full roll of printed labels on a 3 in. core, or peels and rewinds liner (factory installed only); Peel: front-mount, passive peel; Liner take-up spindle; Cutter: front-mount guillotine cutter and catch tray |
| Keyboard Display Unit | ZKDU™ keyboard display units for stand-alone printing applications |
| Physical and environment | |
| Dimensions | 495 mm L x 336 mm W x 324 mm H (19.5 x 13.25 x 12.75 in.); with full rewind: 500 mm L x 338 mm W x 425 mm H |
| Weight | ZT421: 40 lbs./18.14 kg; with full rewind: 55.3 lbs./25.08 kg |
| Operating Temperature | Thermal transfer: 40º F to 104º F/5º C to 40º C; Direct thermal: 32º F to 104º F/0º C to 40º C |
| Storage | -40º F to 140º F/-40º C to 60º C |
| Operating Humidity | 20% to 85% non-condensing |
| Storage Humidity | 5% to 85% non-condensing |
| Electrical | Auto-detectable (PFC Compliant) 100-240VAC, 50-60Hz; ENERGY STAR qualified |
| Safety and EMC | IEC 62368, Class B, EN 55032, EN 55035, EN 61000-3-2, EN 61000-3-3 |
| Product markings | Including cTUVus, CE, FCC, ICES-003(B), VCCI, RCM, NOM, S-Mark, CCC, EAC, BSMI, KCC, SABS, In-Metro |
| Warranty | |
| Warranty | Covered by the manufacturer's warranty. The warranty period, terms and conditions are as declared by Zebra. |
Ask for labels, ribbons, RFID inlays and any Wi-Fi card, rewinder or cutter in the same quotation.
Specifications from Zebra's published documents, last checked 13 October 2026. Makers can change specifications without notice; we confirm the exact model and configuration in your written quotation. About our product information
More detail
Dual USB Host ports for added flexibility
Dual USB Host ports allow you to directly connect a wide range of USB device types.
Designed to evolve with your needs
You can customize the ZT400 Series with a range of media handling options; the rewinder is factory installed only.
Configure your way with multiple connectivity options
The ZT400 comes standard with Ethernet, Serial, USB, dual USB Host and Bluetooth 4.1.
Large color touch display makes operation a snap
It’s easy to set up and use the ZT400 with its intuitive icon-based interface, including managing RFID settings.
Backward compatible with virtually any existing printer
You can keep using your existing ZPL label formats and applications with the ZT400.
Compare
| Feature | Zebra ZT421 | Zebra ZT411 | Zebra ZT620 |
|---|---|---|---|
| Maximum print width | 168 mm (6.6 in.) | 104 mm (4.09 in.) | 168 mm (6.6 in.) |
| Maximum print speed | 305 mm/s (12 ips) at 203 dpi; 254 mm/s at 300 dpi | 356 mm/s (14 ips) at 203 dpi | 305 mm/s (12 ips) at 203 dpi; 203 mm/s at 300 dpi |
| Resolutions | 203 or 300 dpi | 203, 300 or 600 dpi | 203 or 300 dpi |
| RFID | UHF RFID option, field upgradable | UHF RFID option; on-metal RFID kit | UHF RFID option, field upgradable |
| Media width | 51-178 mm | 25.4-114 mm | 51-180 mm |
| Best for | 6-inch carton, pallet and drum labels, with or without RFID | 4-inch industrial labels, small high-resolution labels and on-metal tags | 6-inch labels round the clock in harsh plants, Gigabit Ethernet |
If your job differs from what the ZT421 is built for, these Zebra models may fit it better:
Not sure which one fits? Tell us how you will use it and we will recommend a model.
Part numbers
Quote the part number for your ZT421 in your enquiry and we confirm the exact part. These are Zebra's own codes; if you do not have yours, send a photo of the device's rating label.
| Part number | What it is | Ask about this part |
|---|---|---|
| P1058930-012 | Printhead 203 dpi ZT421 & ZT421 RFID | Ask on WhatsApp about P1058930-012 (opens in a new tab) |
| P1058930-013 | Printhead 300 dpi ZT421 & ZT421 RFID | Ask on WhatsApp about P1058930-013 (opens in a new tab) |
| Part number | What it is | Ask about this part |
|---|---|---|
| P1058930-027 | Lock/Retainer for the Platen Roller ZT400 Series | Ask on WhatsApp about P1058930-027 (opens in a new tab) |
| Part number | What it is | Ask about this part |
|---|---|---|
| P1058930-025 | Conversion kit, ZT421 to 300 dpi | Ask on WhatsApp about P1058930-025 (opens in a new tab) |
| P1058930-026 | Conversion kit, ZT421 to 203 dpi | Ask on WhatsApp about P1058930-026 (opens in a new tab) |
Printheads for every printer we sell · Is it the printhead? Symptoms, tests and when to replace
Part numbers as published by Zebra, checked in Zebra's published documents on 10 October 2026. Parts and printer configurations available in India can change; we confirm the exact code and the delivery time in your quotation. About our product information
Downloads
Questions buyers ask
The ZT421 price depends on the resolution you choose (203 or 300 dpi), the options you add and the quantity. We can quote the labels and ribbon with it. Ask our team for today's competitive price: share your requirement and budget, and we will help you choose the right configuration and send a written quotation with current pricing and delivery time.
Yes. Zebra's support page shows the ZT420 was last sold in October 2020 and its Asia-Pacific support ended on 1 December 2025, and Zebra names the ZT421 as its successor. It keeps the 168 mm print width, 450 m ribbons and Zebra's ZPL and EPL languages, so most label formats carry over. Attach a sample of your widest label to your enquiry.
Yes. The RFID version has a fully integrated UHF EPC Gen 2 V2.1 / ISO 18000-63 reader/encoder that prints and encodes tags at a minimum pitch of 16 mm. Zebra states the integrated RFID system can be upgraded in the field on both the 4-inch and 6-inch ZT400 models. Zebra's on-metal RFID kit is for the ZT411 only.
Both print 168 mm wide at up to 305 mm/s (12 ips) at 203 dpi and take an RFID encoder. The ZT421 is faster at 300 dpi (254 mm/s against 203 mm/s) and lighter at 18.14 kg. The ZT620 adds Gigabit Ethernet, 1 GB RAM and 2 GB flash, and Zebra builds it for 24/7 use in harsh conditions.
Media from 51 mm to 178 mm wide in tear-off or cutter mode (171 mm for peel or rewind), from 0.058 mm to 0.25 mm thick, on rolls up to 203 mm outside diameter on a 76 mm core. Labels can be as short as 12.7 mm (25.4 mm with the cutter) and up to 991 mm long, or 2,591 mm on continuous media at 203 dpi.
Yes, with an optional card; Wi-Fi is not built in. Standard ports are USB 2.0, RS-232 serial, 10/100 Ethernet, Bluetooth 4.1 and two USB Host ports. Two open slots take Zebra's Wi-Fi 6 (802.11ax) with Bluetooth 5.3 card or Wi-Fi 5 (802.11ac) with Bluetooth 4.2 card, as well as parallel, a second Ethernet port or an applicator interface.
Yes. We install the ZT421 at your site, connect it so your ERP, warehouse or billing software prints to it (our own warehouse management system included) and train the people who use it. Tell us the software when you ask for a quote, and we include the setup in the quotation.
Send your label size, how many labels you print a day and the software you print from; we reply with a written quotation.
Since 2014 · 2000+ customers · 75,000+ devices installed · On-site installation & training · Software & ERP integration