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Citizen CT-S310II-U-BK Desktop Direct Thermal Receipt Printer - Monochrome - 6. 30 in/s - 2. 83" Print Width - USB/Serial - With Cutter - Black
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Product Features
Technical Overview
The CT-S310II-U-BK employs direct thermal printing technology that uses heat-sensitive paper to produce monochrome images without ribbons or ink. This mechanism achieves a maximum print resolution of 203 x 203 dpi, ensuring legible text and sharp barcode rendering for receipts, labels, and transaction records. The printer's 4 KB onboard memory supports buffer management during continuous print jobs, maintaining throughput consistency.
Connectivity is provided through both USB and serial interfaces, offering compatibility with modern POS systems and legacy equipment. The integrated automatic cutter enables clean receipt separation after each transaction, while the thermal paper handling system accepts rolls up to 3.3 inches in diameter with a maximum label width of 3.15 inches. Power management features include 110/220 V AC input voltage support and low standby power consumption of 150 mW for energy-efficient operation.
Key Product Advantages
The Citizen CT-S310II-U-BK combines speed, reliability, and operational simplicity in a compact desktop form factor. Its direct thermal printing eliminates consumable complexity while delivering consistent receipt quality at transaction-appropriate speeds.
High-Speed Receipt Processing
With a maximum print speed of 6.30 inches per second, this printer keeps pace with busy checkout environments, reducing customer wait times during peak transaction periods.
- 160 mm/s equivalent speed
- Suitable for high-volume retail
- Minimizes queue bottlenecks
Simplified Media Handling
The automatic cutter provides clean receipt separation without manual intervention, while the 3.3-inch maximum roll diameter supports extended paper capacity for reduced reload frequency.
- Automatic paper cutting
- 3.3" roll capacity
- Thermal paper only
Dual Connectivity Flexibility
USB and serial port options ensure compatibility with both contemporary POS systems and legacy equipment, providing deployment flexibility across varied retail technology environments.
- USB for modern systems
- Serial for legacy equipment
- Platform: PC supported
Deployment / Use Cases
The CT-S310II-U-BK is optimized for transaction documentation across retail, hospitality, and service industries where reliable receipt printing is essential. Its desktop form factor and direct thermal technology make it particularly suitable for countertop installation in space-constrained environments.
In retail settings, this printer handles point-of-sale receipt generation with support for comprehensive barcode symbologies including UPC, Code 128, and QR codes. For hospitality applications, it provides quick transaction documentation for restaurant checks, hotel folios, and service tickets. The monochrome output and 2.83-inch print width are specifically calibrated for standard receipt formats, while the automatic cutter ensures professional presentation of separated documents.
Retail Point of Sale
Ideal for grocery stores, convenience markets, and specialty retailers requiring fast receipt printing with barcode support for inventory tracking and price verification.
- UPC and QR code compatible
- 6.30 in/s print speed
- Compact countertop footprint
Hospitality Transaction Documentation
Suited for restaurants, hotels, and service businesses needing reliable receipt generation for customer bills, payment records, and transaction documentation.
- Automatic receipt separation
- Thermal paper reliability
- Dual connectivity options
Physical Profile
The CT-S310II-U-BK features a compact black housing measuring 5.20 inches high by 5.51 inches wide by 7.68 inches deep, designed for countertop placement without excessive space consumption. Weighing 4.19 pounds, the printer maintains stability during operation while remaining portable for temporary installation needs. The black finish provides professional aesthetics that blend with various retail and office environments, and the desktop form factor requires no specialized mounting hardware for typical deployment scenarios.
- Width
- 2.83" (72 mm)
- Depth
- 7.68" (195 mm)
- Height
- 5.20" (132 mm)
- Weight
- 4.19 lb (1900 g)
Highlights
- Direct thermal printing technology eliminates ink/toner requirements
- 6.30 inches per second maximum print speed for fast transaction processing
- 2.83-inch print width optimized for standard receipt formats
- USB and serial connectivity for flexible system integration
- Built-in automatic cutter for clean receipt separation
- Comprehensive barcode support including UPC, Code 128, and QR codes
- Compact desktop design with 5.20"H x 5.51"W x 7.68"D dimensions
- 110/220 V AC input voltage for international power compatibility
- Energy Star certified with 150 mW standby power consumption
- UL, C-UL, FCC, TUV-GS, CE, and VCCI certifications for regulatory compliance
Specifications
| Specifications | |
|---|---|
| Manufacturer | Citizen Micro HumanTech |
| Manufacturer Part Number | CT-S310II-U-BK |
| Brand Name | Citizen |
| Product Model | CT-S310II |
| Product Name | CT-S310II Receipt Printer |
| Product Type | Direct Thermal Printer |
| Technical Information | |
| Recommended Use | Receipt Print |
| Print Color Capability | Monochrome |
| Maximum Mono Print Speed | 6.30 in/s (160 mm/s) |
| Maximum Print Resolution (dpi) | 203 x 203 |
| Maximum Print Width | 2.83" (72 mm) |
| Barcode Symbology Supported | UPC-A,UPC-E,ITF,Code 39,Code 128,Codabar,Code 93,GS1 DataBar,PDF-417,QR Code,JAN-13,JAN-8 |
| Application/Usage | Desktop |
| Memory | |
| Standard Memory | 4 KB |
| Interfaces/Ports | |
| Serial Port | Yes |
| USB | Yes |
| Cutter | |
| Cutter | Yes |
| Media Types & Handling | |
| Media Type | Thermal Paper |
| Maximum Roll Diameter | 3.3" (83 mm) |
| Maximum Label Width | 3.15" (80 mm) |
| Power Description | |
| Power Source | AC Supply |
| Input Voltage | 110 V AC,220 V AC |
| Off-Mode Power Consumption | 700 mW |
| Standby Power Consumption | 150 mW |
| Physical Characteristics | |
| Product Color | Black |
| Height | 5.20" (132 mm) |
| Width | 5.51" (140 mm) |
| Depth | 7.68" (195 mm) |
| Weight (Approximate) | 4.19 lb (1900 g) |
| Miscellaneous | |
| Platform Supported | PC |
| Certifications & Standards | UL C-UL FCC Class A TUV-GS CE marking VCCI |
| Energy Star | Yes |
| Environmentally Friendly | Yes |
FAQ
What type of printing technology does the Citizen CT-S310II-U-BK use?
The CT-S310II-U-BK employs direct thermal printing technology, which uses heat-sensitive thermal paper to create images without requiring ink, toner, or ribbons. This technology produces monochrome output at 203 x 203 dpi resolution and simplifies maintenance by eliminating consumable replacement beyond the paper itself.
How fast does this receipt printer operate?
Maximum print speed is 6.30 inches per second (160 mm/s), allowing rapid receipt generation during high-volume transaction periods. This speed supports efficient customer flow in retail and hospitality environments while maintaining print quality for barcodes and transaction details.
What connectivity options are available?
The printer provides both USB and serial port interfaces, offering compatibility with modern POS systems via USB and legacy equipment through the serial connection. This dual-interface approach ensures deployment flexibility across various retail technology environments without requiring additional adapters.
Does this printer include an automatic paper cutter?
Yes, the CT-S310II-U-BK features a built-in automatic cutter that cleanly separates receipts after printing. This eliminates manual tearing and ensures professional presentation of transaction documents without requiring additional peripheral devices or manual intervention.
What paper specifications does this printer support?
It accepts thermal paper rolls up to 3.3 inches (83 mm) in diameter with a maximum label width of 3.15 inches (80 mm). The print width is 2.83 inches (72 mm), optimized for standard receipt formats. Only thermal paper is required—no ink, toner, or ribbons are necessary for operation.
What barcode types can this printer generate?
Supported barcode symbologies include UPC-A, UPC-E, ITF, Code 39, Code 128, Codabar, Code 93, GS1 DataBar, PDF-417, QR Code, JAN-13, and JAN-8. This comprehensive support enables inventory tracking, price verification, and promotional code integration in retail applications.
What are the physical dimensions and weight?
Dimensions are 5.20 inches high by 5.51 inches wide by 7.68 inches deep (132 x 140 x 195 mm), with an approximate weight of 4.19 pounds (1900 grams). This compact desktop form factor fits easily on countertops while providing stable operation during printing tasks.
What power requirements and certifications does it have?
The printer operates on 110 or 220 V AC input voltage, supporting international power standards. It carries UL, C-UL, FCC Class A, TUV-GS, CE marking, and VCCI certifications, along with Energy Star compliance for energy-efficient operation with 150 mW standby power consumption.