Citizen CL-S521II - label printer - thermal paper - roll (11.8 cm) - 203 dpi - up to 150 mm/sec - USB, serial - black group printer manufacturer citizen manufacturer item no. CLS521IINEBXX model CL-S521II EAN/UPC Product Description: Citizen CL-S521II - label printer - monochrome - direct thermal printer type label printer - direct thermal - monochrome Weight 3.6 kg Max media size Roll (11.8 cm) Minimum media size (customized) 12.5 mm Max media size (customized) 118.1 mm Print speed Up to 150 mm/sec - max speed Max resolution (B/W) 203 dpi Interface USB, serial RAM Installed (Max) 32 MB Installed flash memory (max) 16 MB Printer language ZPL II, EPL, DPL Media Type Labels Features Adjustable Distance Sensor, Black Mark Sensor, Notch Sensor Printer Features Hi-lift Metal Mechanism, Active Ribbon Control and Positioning System (ARCP) System Requirements Linux, Apple macOS X, Microsoft Windows Server 2003, Microsoft Windows
The Citizen CL-S521II is a robust direct thermal label printer designed for demanding professional environments that require reliable, high-quality labeling with minimal maintenance. With a maximum print width adapted to roll media up to 118 mm and a resolution of 203 dpi, it produces clear barcodes, text and graphics that are ideal for shipping labels, inventory tags, product labels, and identification stickers. Thanks to a print speed of up to 150 mm per second, the CL-S521II ensures fast throughput even in environments with high label volumes.
Technically, this model works with direct thermal printing technology, which eliminates the need for ribbons and simplifies operation and maintenance. The device supports roll media up to 11.8 cm wide, making it suitable for a broad range of label formats. Connectivity is provided via USB and serial interfaces, enabling easy integration into existing IT infrastructures, warehouse systems, point-of-sale landscapes and industrial applications. The solid mechanical design and Citizen's proven print mechanism are aimed at long service life and reliable continuous operation.
Typical applications include logistics and shipping centers, warehouses, production environments, retail, healthcare, and office labeling. In logistics, the CL-S521II is used for address and shipping labels; in warehouses, it supports inventory labeling and bin identification; in retail, it is suitable for price and shelf labels; and in production, it helps with work-in-progress and product identification labels. The combination of fast printing and simple media handling reduces bottlenecks and helps streamline workflows.
Key advantages for users include straightforward handling, low running costs due to direct thermal technology, and reduced downtime thanks to the durable construction. The 203 dpi resolution is sufficient for most barcode standards and typical text and logo applications, while the compact design saves valuable workspace. The dual interface (USB and serial) improves flexibility when connecting to legacy systems or modern PCs and terminals.
Citizen, as manufacturer, is known for reliable, industry-proven printing solutions that focus on longevity and user-friendliness. The company places emphasis on robust mechanics and consistent print quality to meet the requirements of professional users in logistics, industry and retail. Various product families from Citizen are designed for long service life and low maintenance requirements, which contributes to overall resource conservation.
Where Citizen implements measures for sustainability and environmental protection within its printing solutions, these typically aim at reducing energy consumption and minimizing waste over the entire product lifecycle. With direct thermal printing, there is no need for ink or toner cartridges, which already reduces consumable-related waste. By choosing a durable label printer instead of short-lived low-cost devices, customers help avoid unnecessary electronic waste in the long term. In addition, optimized energy management and efficient electronics in many Citizen devices can help reduce power consumption during operation and in standby modes. By investing in a high-quality device such as the CL-S521II and using suitable, environmentally considerate label materials, purchasing customers can actively contribute to more sustainable processes in their company while simultaneously benefiting from reliable, professional label printing.
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