Compatible HP CF255A (55A) toner: installation, reset and savings guide

The HP CF255A toner (also known as 55A) is one of the most common monochrome laser cartridges in the office environment. In its compatible version from Star Toner it offers an approximate yield of 6,000 pages (ISO/IEC 19752 measurement, 5% coverage) and is manufactured under an ISO 9001 quality system. Below we explain what it does, how to install it and what you gain compared with the original.

What it is and which printers it fits

The CF255A is a standard-reference black toner within HP's 55A series. It fits several monochrome laser printers and multifunction models from the brand. As the exact list of machines can vary by revision and region, the most reliable approach is to check your model directly on the compatible HP CF255A toner product page, where the confirmed compatibility is listed. If your printer is a colour model, this cartridge is not the right one: in that case, look at options such as the HP 508A CF360A toner or the HP 655 CF450A toner.

How to install it and what to do if the "cartridge is not recognised"

Installation is identical to that of an original cartridge:

• Switch off the printer or wait for any job in progress to finish.
• Open the front cover and remove the old cartridge, pulling it out gently.
• Take the new CF255A out of its packaging, remove the seals and the safety tab, and distribute the toner by rocking it horizontally several times.
• Insert it until it clicks into place and close the cover.

If the "cartridge not recognised", "non-genuine" or "incompatible chip" warning appears, it is almost always an informational message that you can accept and carry on printing. To resolve it completely, try switching the printer off and on again, removing and refitting the cartridge while making sure the chip makes good contact, or performing a full power-off cycle. On many HP machines the real block comes from firmware updates; we recommend reading our article on how HP firmware blocks cartridges before updating.

Yield and savings compared with the original

With its 6,000-page nominal yield, this compatible cartridge covers the same print volume as a standard-reference cartridge, with density and sharpness suitable for text documents, reports and forms. The main difference lies in the cost per page: a compatible toner like this significantly reduces your dry-ink spend without changing your printing habits. If you want to see it in figures applied to your own volume, work out your case with our guide to the real cost of printing, and if you are wondering about the final quality, we made a side-by-side original vs compatible print comparison.

Why buy it from Star Toner

The compatible HP CF255A 55A toner costs €17.98 and is manufactured to the ISO 9001 standard, with quality control on every batch. Buying a compatible is entirely legal and does not void your printer's warranty: we explain this in the guide to the legal warranty for compatible cartridges in Spain. Add fast delivery and support to confirm compatibility, and you have a reliable consumable for day-to-day use.

Check availability and compatibility on the compatible HP CF255A toner page and place your order.

Frequently asked questions