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Citizen CT-S4000 Label Printers USB+Parallel, Label mode, 4KB buffer, Black

SKU: 

CT-S4000PAU-BK

Citizen CT-S4000/L thermal receipt printer. Printing: Thermal. Interfaces: USB, Parallel. Print speed: 150 mm/s. Auto cutter included. Paper support: thermal paper and labels. Power: AC with internal detachable power supply. Color: Black. Label mode support: yes. Black mark support: no. Input buffer: 4 KB.
Description
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The Citizen CT-S4000/L Receipt Printer, part of the Citizen Pro family, is a high-performance thermal receipt and label printer engineered for POS, retail, hospitality and kitchen environments. Designed to deliver dependable line thermal printing, it provides fast transaction throughput and reliable media handling for receipts and labels. Multiple interface options and cash-drawer support make integration into existing POS systems straightforward, while an automatic cutter and internal, detachable AC power supply reduce downtime and simplify installation. With 203 dpi print resolution and tested operating and storage tolerances, the CT-S4000/L is suited for high-volume counters and back-office applications where consistent print quality, connectivity flexibility and operational reliability are essential.

Key Features

  • High-speed printing: Print speeds up to 150 mm/s on faster variants to accelerate transaction throughput and reduce customer wait times.
  • Versatile connectivity: Multiple interface options across variants including USB, Serial (RS-232C), Parallel and Ethernet for easy integration with POS systems.
  • Automatic cutter: Built-in auto-cutter available on supported models improves workflow by delivering clean, ready-to-hand receipts and labels.
  • Thermal media compatibility: Supports thermal paper and label stock for reliable, maintenance-free printing without consumable inks or ribbons.
  • Robust power and environmental design: Internal, detachable AC power supply and tested operating/storage temperature and humidity ranges for dependable performance in POS and kitchen environments.

Specifications

  • Brand: Citizen
  • Model / Reference: CT-S4000 / CT-S4000/L
  • Printing technology: Thermal line / Thermal
  • Print resolution (dpi): 203 dpi
  • Print speed: Up to 150 mm/s (variants include 112 mm/s and 150 mm/s)
  • Maximum print width: 112 mm
  • Supported interfaces: USB; Serial (RS-232C); Parallel (IEEE 1284); Ethernet (on applicable variants)
  • Auto cutter: Yes (on supported variants)
  • Paper type support: Thermal paper and labels
  • Power supply type: AC (internal, detachable power supply)
  • Internal power supply: Yes
  • Input buffer: Up to 16 KB (variant dependent)
  • Cash drawer support: 2
  • Operating temperature: 5 °C
  • Storage temperature: -20 °C
  • Operating / Storage humidity: 10 % RH

Main Features

  • Rugged: Commercial

  • POS: Yes

  • Print Speed: 6 in/s

  • DPI: 203 dpi

  • Case color: Black

  • Connection: USB, Ethernet

  • Optional Upgrades: Cutter

  • Max Width: 4 mm

  • Max Label Length: 11.65 in

  • Printing Technology: Direct Thermal

Technical Specifications
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Technical Information
Recommended Use Receipt Print
Print Color Capability Color
Maximum Mono Print Speed 5.91 in/s
Maximum Print Resolution (dpi) 203
Maximum Print Width 4.41"
Barcode Symbology Supported
  • UPC-A
  • UPC-E
  • EAN/JAN-13
  • EAN/JAN-8
  • ITF
  • Code 39
  • Code 93
  • Code 128
  • Codabar
  • PDF-417
Print Technology Direct Thermal
Memory
Flash Memory 384 KB
Interfaces/Ports
Parallel Port Yes
USB Yes
Network & Communication
Ethernet Yes
Ethernet Technology Ethernet
Cutter
Cutter Yes
Cutting Method Automatic
Media Types & Handling
Media Type Thermal Paper
Media Size
  • 3.15" x 4.02" - Roll Paper
  • 3.25" x 4.02"
  • 4.41" x 4.02"
Maximum Roll Diameter 4.02"
Power Description
Input Voltage
  • 110 V AC
  • 220 V AC
Physical Characteristics
Color Family Black
Product Color Black
Miscellaneous
Additional Information
  • Internal Buzzer
  • Two-color capable
  • Internal power supply
  • Dual cash drawer kick-out
  • Direct Memory Access (DMA)
Platform Supported PC
Warranty
Limited Warranty 3 Year
Documents
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Product document mod-ct-s4000l-citizen-label-printer-datasheet.pdf CT-S4000PAU-BK Product document mod-ct-s4000l-citizen-label-printer-manual-en-de-fr-it-es.pdf CT-S4000PAU-BK Product document mod-ct-s4000l-citizen-label-printer-user-manual.pdf CT-S4000PAU-BK Product document citizen-ct-s4000-l.pdf CT-S4000PAU-BK Product document mod-ct-s4000l-citizen-label-printer-datasheet.pdf MOD-CT-S4000/L Product document mod-ct-s4000l-citizen-label-printer-manual-en-de-fr-it-es.pdf MOD-CT-S4000/L Product document mod-ct-s4000l-citizen-label-printer-user-manual.pdf MOD-CT-S4000/L
FAQs
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What connectivity options does the Citizen CT-S4000/L support for integrating with an existing POS system?
The CT-S4000/L supports USB, Serial (RS-232C), and Ethernet interfaces, making it straightforward to connect to a wide range of POS setups.
What print resolution and speed does the Citizen CT-S4000/L deliver?
It prints at 203 dpi resolution and at a speed of 6 inches per second.
Can the Citizen CT-S4000/L handle both receipts and label stock?
Yes, it supports both thermal paper and label media, making it suitable for POS receipt printing as well as label output without requiring ink or ribbon consumables.
Is an automatic cutter available on the Citizen CT-S4000/L?
A cutter is available as an optional upgrade on the CT-S4000/L.
What environments is the Citizen CT-S4000/L designed for?
It is engineered for POS, retail, hospitality, and kitchen environments, and its internal detachable AC power supply supports reliable deployment in high-volume counter and back-office applications.
Does the Citizen CT-S4000/L include cash drawer support?
Yes, the CT-S4000/L supports connection to two cash drawers.