Citizen CL-S521II 4-inch direct thermal desktop label printer, 203 dpi, USB and RS-232, black (CLS521IINEBXX) – front view

Citizen CL-S521II 4-inch direct thermal desktop label printer, 203 dpi, USB and RS-232, black (CLS521IINEBXX) – angled view

Citizen CL-S521II 4-inch direct thermal desktop label printer, 203 dpi, USB and RS-232, black (CLS521IINEBXX) – CL-S500 / CL-S600 series line-up

Media Width and Thickness Adjustment for Citizen CL-S521/621 and CL-E720 Label Printers

Citizen CL-S521 Desktop Label Printer (CLS521IINEBXX)

Name: Citizen CL-S521 Desktop Label Printer (CLS521IINEBXX)
Brand: CITIZEN
SKU: cit521sw2
Availability: InStock

393,82 € +VAT

Product variants

Resolution (dpi)

203300

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Available: In Stock
Vendor: CITIZEN
Type: Desktop Printers
Barcode: CLS521IINEBXX
Collections: Desktop Label Printers , Label Printers , Shipping Label Printers

📄 Download Product Brochure (PDF)

CITIZEN

Citizen CL-S521 Desktop Label Printer (CLS521IINEBXX)

393,82 € +VAT

Description

Description

The Citizen CL-S521II (CLS521IINEBXX) is an industrial 4-inch desktop label printer for direct-thermal printing at 203 dpi and up to 150 mm/s (6 ips) – no ribbon needed. Its all-metal Hi-Lift™ mechanism and Hi-Open™ case take 5" (127 mm) label rolls up to 118 mm wide on 1"–3" cores or fanfold media, it speaks Zebra ZPL II and Datamax with automatic Cross-Emulation™ and connects via USB 2.0 and RS-232, with a slot for an optional Ethernet or Wi-Fi card. The power supply is built in – just plug in the supplied EU mains cord.

📦 What's in the box – CLS521IINEBXX

✅ Citizen CL-S521II label printer – 203 dpi, direct thermal
✅ Power cord – EU plug (Schuko); the power supply is built into the printer; no external adapter
✅ Media holder bar + media holder guide – for 5" (127 mm) rolls on 1"–3" cores inside the printer
✅ Head cleaner – keeps the print head clean for sharp prints
✅ Test label media – for checking the set-up; order labels for your application separately
✅ Quick-start guide – drivers, SDK, utilities and BarTender label software are a free download (link in the guide)
❌ USB or RS-232 cable – NOT included – connect via USB 2.0 (type B) or RS-232; order a cable separately
❌ Labels – NOT included – choose labels to suit your application (see compatible labels below)
❌ Cutter, peeler and network card – NOT included – optional extras; see the accessories below

⚠️ Please note: no USB or serial cable is in the box. To connect the printer to your computer, please order a USB A-to-B cable separately – e.g. the Bixolon USB-KAB-G – or use any standard USB 2.0 A-to-B printer cable.

💡 Useful extras: the auto-cutter Citizen 2000424; the peeler Citizen 2000411; the 8-inch external roll holder Citizen 2000415 for 200 mm rolls; an internal Ethernet card (Citizen IF5-ES04) or Wi-Fi card (Citizen IF5-WF5S).

Key Features

Direct thermal at 203 dpi – up to 150 mm/s (6 ips), max. print width 104 mm; no ribbon to buy or change
Industrial all-metal Hi-Lift™ mechanism with wide-opening head and Hi-Open™ vertical-opening case – easy loading without extra desk space
5" (127 mm) rolls on 1"–3" cores inside the printer, media 19.5–118 mm wide and 0.0635–0.254 mm thick, fanfold from the rear – 8" (200 mm) rolls with the optional external holder
Fully adjustable transmissive gap / notch sensor plus reflective black-mark sensor
Cross-Emulation™ switches automatically between Zebra® ZPL II® and Datamax® (DMX400 / I-Class), plus EPL2, CBI™ BASIC and Citizen commands – a drop-in replacement for existing printers
USB 2.0 and RS-232C as standard, plus an internal slot for an optional Ethernet, Wi-Fi or parallel card
Built-in power supply – no external adapter cluttering the desk
Field-upgradable with auto-cutter or peeler; 16 MB Flash / 32 MB SDRAM

Ideal Applications

Shipping and courier labels for e-commerce, parcel services and post
Logistics and warehousing – carton, pallet and address labels
Retail – price, shelf-edge and product labels
Pharmacy and healthcare – prescription, patient and specimen labels
Tickets, tags and receipts (with the optional cutter)

All CL-S521II / CL-S531II Versions

The highlighted row is the version you are currently viewing.

Part Number	Model	Resolution	Print speed	Max print length
CLS521IINEBXX (this version)	CL-S521II	203 dpi	150 mm/s	2,539.7 mm	Viewing
CLS531IINEBXX	CL-S531II	300 dpi	100 mm/s	1,625.6 mm	View product

Technical Specifications

Part Number	CLS521IINEBXX
Model	Citizen CL-S521II (CL-S521II / CL-S531II series)
Printer Type	4-inch industrial desktop direct thermal label printer
Print Method	Direct thermal (no ribbon)
Resolution	203 dpi (8 dots/mm)
Print Speed	Up to 150 mm/s (6 ips); 100 mm/s (4 ips) with the peeler
Max Print Width	104 mm (4.1")
Max Print Length	2,539.7 mm (99.99")
Media Width	19.5–118 mm (0.77"–4.65")
Media Thickness	0.0635–0.254 mm
Roll Diameter	Up to 127 mm (5") inside the printer; up to 200 mm (8") with the optional external roll holder 2000415
Core Size	25.4–76 mm (1"–3")
Media Types	Rolls and fanfold – die-cut labels, continuous media, tags and tickets (direct-thermal media)
Sensors	Fully adjustable transmissive gap / notch sensor, reflective black-mark sensor, label-peeling sensor (for the optional peeler)
Interfaces	USB 2.0 full speed (type B), RS-232C serial (2,400–115,200 bps); internal slot for an optional Ethernet, Wi-Fi or IEEE 1284 parallel card
Wireless	None (optional Wi-Fi card IF5-WF5S / IF5-WF5L)
Memory	16 MB Flash (4 MB user area), 32 MB SDRAM (16 MB user area)
Printer Languages	Cross-Emulation™ (automatic Zebra® ZPL II® / Datamax® DMX400 & I-Class switching), Eltron® EPL2®, CBI™ BASIC interpreter, Citizen commands
Display	No LCD – 4 buttons and 4 status LEDs
Media Options	Tear-off as standard; optional auto-cutter (2000424) and peeler (2000411)
Drivers & Software	Windows driver, SDK, utilities and BarTender label software – free download
Power Supply	Built-in power supply: 220–240 V AC (−10%/+6%), 50/60 Hz, 1.2 A; ENERGY STAR®
Dimensions (W × D × H)	231 × 289 × 186 mm
Weight	Approx. 3.5 kg
Color	Black
Operating Temperature	0–40 °C, 30–80% RH (non-condensing)
Warranty	Printer 2 years; print head 6 months or 30 km
In the Box	Citizen CL-S521II printer (203 dpi, direct thermal, built-in power supply), power cord (EU plug), media holder bar + media holder guide, head cleaner, test label media, quick-start guide; drivers, SDK, utilities and BarTender as free download – USB / RS-232 interface cable and labels NOT included

Need durable thermal-transfer labels? Choose the Citizen CL-S621II (thermal transfer + direct thermal); for labels up to 168 mm wide, see the 6-inch Citizen CL-S6621. Both CL-S521II / CL-S531II versions are listed above – compare other models in our Desktop Label Printers collection or contact our team for volume pricing.