Key facts
Start here
Citizen CLP-631 Barcode Label Printer User Manual
The CLP-631 series is a light‑industrial barcode label printer with a 306 DPI resolution, 104 mm printable width and support for both thermal transfer and direct thermal modes. It offers high‑speed 32‑bit RISC processing, durable print heads and a large internal label capacity, making it suitable for manufacturing, logistics, retail and other applications.
The printer includes IEEE 1284 parallel, RS‑232 serial and USB 1.1 interfaces, optional accessories such as an electric cutter and external paper roll, and supports a wide range of 1D and 2D barcode symbologies. Technical specifications such as print speed, memory and dimensions are detailed in the manual. This manual is written in Chinese.
Citizen CLP-631 specifications
| Print resolution | 306 DPI |
|---|---|
| Print width | 104 mm (max paper width 118 mm) |
| Print speed | 1–4 inches/second (2.54–100 mm/s) |
| Maximum paper width | 118 mm |
| Memory | 8 MB SDRAM, 2 MB Flash ROM |
| Processor | 32‑bit RISC high‑speed processor |
| Interface ports | IEEE1284 parallel, RS‑232 serial, USB 1.1 |
| Dimensions | 231 × 289 × 279 mm |
| Weight | 4.5 kg |
| Label width range | 19.5–118 mm |
| Supported barcode types | 1D and 2D barcodes |
All Citizen CLP-631 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What print resolution does the CLP-631 support?
The printer provides a resolution of 306 DPI.
Which barcode symbologies are supported by the CLP-631?
It supports a wide range of 1D barcodes such as Code 39, UPC‑A/E, Code 128, EAN‑13/8, and 2D barcodes including MaxiCode, PDF417, Data Matrix and QR code.