HP 55A & 55X Toner Cartridges – CE255A & CE255X

Castle Ink sells compatible HP 55A / 55X toner cartridges: the standard-yield 55A black (CE255A) and the high-yield 55X black (CE255X), which fit the same printers. They fit the HP LaserJet P3015, P3015d, P3015dn and P3015x, the LaserJet Enterprise 500 MFP M525, and the LaserJet Pro MFP M521dn and M521dw. Each cartridge is newly manufactured from new components, filled with fresh toner and print-tested. Orders placed by 4 PM ET ship the same business day, shipping is free over $50, and every cartridge is covered by our 1-year 100% satisfaction guarantee.

Firmware note: this printer generation does not block third-party toner, but keeping automatic firmware updates off is still the safe default.

Need the details first? Read What toner does the LaserJet P3015 use?

2 products

Shopping for a specific printer? Find the right ink or toner by printer model →

  • HP CE255X Black Toner Cartridge (High-Yield)
    $224.95
    $42.95
  • HP CE255A Black Toner Cartridge
    $145.99
    $36.99

HP 55A / 55X Toner: Common Questions

What is the difference between the HP 55A / 55X sizes?

55A prints about 6,000 pages and 55X about 12,500. Both fit the same printers, so 55X costs less per page. HP's cartridges have the drum built in, so there is no separate drum to buy.

Which printers use HP 55A / 55X toner?

HP LaserJet P3015, P3015d, P3015dn, P3015x, LaserJet Enterprise 500 MFP M525, LaserJet Pro MFP M521dn, MFP M521dw. Our Find Ink by Printer page has a guide for each model.

Will compatible HP 55A / 55X toner work in my printer?

Yes. Our cartridges are new, not refilled, and install like an original. Keep automatic firmware updates off so a future HP update can't block third-party toner. If a cartridge from us isn't recognized, contact us and we'll replace or refund it under our 1-year guarantee.

Standard or high-yield: which should I buy?

High-yield (the X or H version) in almost every case. It is the same cartridge body with more toner, so each printed page costs less. Standard-yield only makes sense if you print very little.

More help: What toner does the LaserJet P3015 use? · All HP toner cartridges · Find Ink by Printer. Updated October 2026 by William Elward, founder of Castle Ink (in business since 2005).