Citizen

Citizen CT-S310II Receipt Printers Black, RS232 + USB, 150 km

SKU: 

CTS310IIEBK

Citizen CT-S310II direct thermal receipt printer, 203 dpi, USB + serial interface, black. Cutter-equipped POS/desktop model, 160 mm/s print speed, supports 80 mm media and up to 83 mm roll diameter. 384 KB memory, cutter life 2,000,000 cuts, print head life 150 km.
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Description
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The Citizen CT-S310II is a robust direct thermal receipt printer designed for demanding POS environments where reliability, speed and compact footprint matter. Ideal for retail, hospitality and quick-service restaurants, this model delivers consistent 203 dpi output at up to 160 mm/sec, integrating easily with point-of-sale systems via USB, serial and Ethernet interfaces depending on the variant. With a built-in auto-cutter, long-life print head and generous memory for graphics and fonts, the CT-S310II minimizes downtime and consumable changeovers while producing clear receipts and kitchen tickets. Its desktop counter-top design and choice of black or white enclosures suit a variety of installations and brand aesthetics.

Key Features

  • High-resolution printing: 203 dpi direct thermal engine ensures crisp text and logos for professional receipts and kitchen tickets.
  • Fast print performance: Up to 160 mm/sec printing speed reduces customer wait times and accelerates transaction throughput.
  • Flexible connectivity: Available USB, serial and Ethernet interfaces provide easy integration with a wide range of POS systems and network configurations.
  • Durable cutter and print head: Built-in auto-cutter rated for 2,000,000 cuts and print-head life measured in hundreds of kilometers for low maintenance.
  • Compact, deployment-ready design: Small desktop footprint with optioned countertop models and choice of black or white finishes to match installation needs.

Specifications

  • Brand: Citizen
  • Printing technology: Direct Thermal
  • Resolution (dpi): 203 dpi
  • Print speed: 160 mm/sec
  • Interface configuration: USB + serial, Ethernet + USB (varies by variant)
  • Connection: USB, RS232, Ethernet (depending on model)
  • Supported media width: 80 mm (some variants 58 mm)
  • Maximum roll diameter: 83 mm
  • Cutter life: 2,000,000 cuts
  • Print head life: 150–200 km (variant dependent)
  • Print head pulses: up to 300,000,000
  • Memory capacity: 384 KB
  • Storage type: Flash (192K bytes char, 384K bytes graphic) on some variants
  • Power supply voltage: 240 V (on applicable variants)
  • Power supply frequency: 47–63 Hz or 60–63 Hz (variant dependent)
  • Power consumption: 32 W (specified on some variants)
  • Body / case color: Black, Pure white, Cool white (model dependent)
  • Size (example variant): 140 x 195 x 132 mm
  • Paper thickness (example): 65 µm (specified on one variant)
  • Paper roll core inner / outer diameter: 12 mm / 18 mm (specified on one variant)
  • Buffer size: 4 KB (specified on some variants)
  • Market region: Europe
  • Target industry: POS

Main Features

  • POS: Yes

  • DPI: 203 dpi

  • Case color: Black

  • Connection: RS232, USB

  • Optional Upgrades: Cutter

Documents
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Product document mod-ct-s310ii-citizen-receipt-printers-datasheet.pdf CTS310IIEBK Product document mod-ct-s310ii-citizen-receipt-printers-manual-en-de-fr-es-it.pdf CTS310IIEBK Product document mod-ct-s310ii-citizen-receipt-printers-user-manual.pdf CTS310IIEBK Product document Citizen_CT_S310II.pdf CTS310IIEBK Product document mod-ct-s310ii-citizen-receipt-printers-datasheet.pdf MOD-CT-S310II Product document mod-ct-s310ii-citizen-receipt-printers-manual-en-de-fr-es-it.pdf MOD-CT-S310II Product document mod-ct-s310ii-citizen-receipt-printers-user-manual.pdf MOD-CT-S310II
FAQs
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What print speed and resolution does the Citizen CT-S310II deliver?
The Citizen CT-S310II prints at up to 160 mm/sec using a direct thermal engine at 203 dpi, producing sharp text and graphics for receipts and kitchen tickets.
Which interface options are available on the Citizen CT-S310II?
The CT-S310II is available with USB, RS232 serial, and Ethernet connectivity, with interface combinations varying by variant — for example, USB plus serial or Ethernet plus USB.
Does the Citizen CT-S310II include a paper cutter, and how long is it rated to last?
Yes, the CT-S310II includes a built-in auto-cutter rated for 2,000,000 cuts, and the print head is rated for 150 to 200 km of printing life.
What color options and form factor does the Citizen CT-S310II come in?
The CT-S310II is a desktop counter-top printer available in black and white enclosure options to suit different installation aesthetics.
What industries and environments is the Citizen CT-S310II designed for?
It is designed for demanding POS environments and is well suited to retail, hospitality, and quick-service restaurants where speed, reliability, and a compact footprint are priorities.