Product Details

Citizen CL-S521 / CL-S531

You’ll love Citizen’s unique metal Hi-Lift™ print mechanism, allowing for quick media loading while an adjustable sensor easily handles a variety of media and label configurations including standard and pediatric medical wristbands.

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The CL-S521 & CL-S531 direct thermal printers combine robust printing with superior price performance, ease of use and precision engineering.


  • Model CL-S521
  • Printing method Direct thermal
  • Printing width 104 mm max.
  • Minimum print length 6.35 mm (0.25 inches)
  • Maximum print length 812 mm (32 inches)
  • Media width 19.5 – 118 mm (0.77 – 4.65 inches)
  • Printing speed 6 inches per second max.
  • Resolution 203 dpi / 300 dpi (CL-S531)
  • Barcode type Code3 of 9, UPC-A, UPC-E, Interleaved2 of 5, Code128, EAN-13, EAN-8, HIBC, CODABAR(NW-7), Plessey, Int2 of 5, CASE CODE, Code93, ZIP, UPC2DIG ADD, UPC5DIG ADD, UCC/EAN128(for K-MART), RandomWeight, Telepen, FIM, UPS MaxiCode, PDF417, Data Matrix, and QR code
  • Paper, Thickness: 0.0635 – 0.254 mm (0.0025 – 0.01 inches), Outer diameter: 127 mm (5 inches)ø MAX, Paper core diameter: 25.4 – 76 mm (1 – 3 inches)
  • Interface: Standard interface: RS-232C and USB (USB1.1) Optional: LAN, WiFi, and Parallel (IEEE1284-ECP/Centronics compatible)
  • Fonts 9 fixed pitch, 2 proportional font
  • Buffer size 512 KB
  • Options Auto-cutter, peeler, LAN interface board, and Parallel interface board
  • Power source AC100-120, 200-240V 50 / 60Hz
  • Weight (approx.) 3.6 kg
  • Outer dimensions (W × D × H) 231 x 289 x 186 mm (9.1 x 11.4 x 7.3 inches)
  • Reliability MCBF 1000 km, Printhead 50 km
  • Safety standards UL, C-UL, FCC: class A, CCC, CE Marking

Warranty & Return

Warranty & RMA Information:

  • Warranty period varies by Manufacturer and Product Range
  • Contact us for Warranty specifics for your product
  • Contact our RMA department to requesting an RMA (310) 837-5888
  • The serial number of your defective product must be provided before we can process the RMA. Serial number can be found on the product label.
  • Upon submittal of an RMA request, an email will be sent to the email address provided with instructions on returning the defective product/s.
  • Shipping: The customer will only pay for incoming shipment Manufacturer will pay for return shipment (Standard ground service). Charges may apply for expedited shipping.
  • Repair turn around time varies by Manufacturer and Product Range.

Non-DOA Returns Policy – All products

  1. NO open box returns for non-DOA products. Product box must be clean and undamaged, with no marks of any kind. This includes writing, stamps, or shipping labels, i.e., written RMA numbers. All products must be double boxed.
  2. Original manufacturer’s packaging, both inside and outside must be used. Returns must be complete with all manuals, cables, warranty cards, static bags, etc., just as the customer received them.
  3. Customers have 30 days from date of invoice to request a non-DOA return. The RMA number issued is valid for 30 days from issue date.
  4. There will be a restocking fee on returns resulting from customer error.
  5. Non-DOA configured product may not be returned.
  6. Products that show signs of use are not returnable to Peripheral Resources as non-DOA.
  7. For customers on credit terms, credit will be applied to your account when the product is received by Peripheral Resources.
  8. Customer is responsible for freight costs when returning product.

DOA Returns Policy

  1. Refer to manufacturer’s warranties and returns policies.
  2. If the product is tested and the problem is not duplicated, there may be a No Problem Found fee charged to the customer.
  3. For customers on credit terms, credit will be applied to your account when the product is received by Peripheral Resources. Replacement product will be sent once DOA item has been received.
  4. For customers on C.O.D. or credit card status, replacement product will be sent upon receipt of product by Peripheral Resources. If desired, we will send replacement product at your normal C.O.D. or credit card status and you can request a refund or credit to your card when Peripheral Resources receives the returned product.



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