| Printing Method | Thermal Transfer/Direct Thermal |
| Printing Width | Max. 4.25 inches, 108 mm |
| Printing Length | Min. 4 mm, Max. 1727 mm |
| Dot Pitch | 8 x 8 dots / mm (203 dpi)
Optional 300 dpi (special Order CL-S331) |
| Printing Speed (Max.) | Max. 102 mm/sec |
| Font | Resident Bitmap Fonts:
6, 8, 10, 12, 14, 18, 24, 30, 16x26 & OCR A&B
Bitmap fonts 90, 180 & 270° rotatable, Single Characters 90, 180 & 270° rotatable
Bitmap fonts 8 times expandable in horizontal and vertical directions
Scalable fonts: 90, 180 & 270° rotatable |
| Character Table/Code Pages | CODEPAGE 437, 850, 851, 852, 855, 857, 860, 861, 862, 863, 865, 866, 869, 737
WINDOWS 1250, 1251, 1252, 1253, 1254, 1255, 1257
Unicode UTF8, UTF16 |
| Bar-code Type | 1D: Code 93, Code 39, EAN-8/13 (add on 2 & 5), UPC-A/E (add on 2 & 5), I 2 of 5 & I 2 of 5 with Shipping Bearer Bars, CODABAR, Code 128 (subset A,B & C), EAN 128, RPS 128, UCC 128, UCC/EAN-128 K-Mart, Random Weight, Post NET, ITF 14, China Postal Code, HIBC, MSI, Plessey, Telepen, FIM and GS1 Databar
2D: PDF-417, MaxiCode, Micro PDF-417, Data Matrix, QR Code, Micro QR Code and Aztec Code |
| Paper feed method | Friction Feed |
| Media Type | Continues Form, Gap Labels, Black Mark Sensing and punch hole sensing
Label length set by auto sensing or programming |
| Media width | Min. 25.4 mm to Max. 118 mm |
| Paper Roll Diameter | Max 127 mm with 25.4/38.1mm Core |
| Media Tickness | Min. 0.06 mm to Max. 0.2 mm |
| Auto Cutter | N/A |
| Indicators/Controls | one Tri-Colour LED
Function key: FEED |
| Emulation | EPL, ZPL auto switch |
| CPU | 32 Bit RISC CPU |
| Memory | RAM (Standard Memory) 16.0 MB Total, 1.0 MB available to user
Flash (Non-Volatile Memory) 8.0 MB Total, 4.0 MB available to user |
| Sensors | Fixed transmisive sensor
Reflective sensor, Central Aligned
Label gap and Black Mark |
| Interfaces | Standard with USB 2.0, RS-232C interface & Ethernet (10/100) |
| Driver available | Windows 8, Windows 7, Windows Vista, Windows XP |
| Software Utilities | Bartender Ultralite |
| Power Supply | Auto Switching 100-240V 50/60Hz |
| Power Consumption | |
| External Dimensions (WxDxH) | 224 x 254 x 170 mm |
| Weight | 2.5 Kg |
| Operating Environment | Temperature: 5 to 40 C
Humidity: 30 to 85% (non-condensing) |
| Storage Environment | Temperature: -20 to 50 C
Humidity: 10 to 90% (non-condensing) |
| EMC/Safety Standards | CE(EMC), FCC Class A, CB and CCC, NOM, S-Mark, C-tick |
Citizen CL-S521 
Citizen CL-S621 
Citizen CLS-6621 
