HP M521dn: 55A/CE255A and 55X/CE255X toner
UpdatedFor the HP LaserJet Pro MFP M521dn, HP lists two original black toners: standard 55A/CE255A and high-capacity 55X/CE255X. Startoner sells a CE255A alternative here declaring 6,000 pages; that figure does not describe the 55X. Check the printer model and selected product before ordering. An original reference alone does not guarantee recognition or yield for a third-party cartridge.
Original options for M521dn
HP lists standard 55A/CE255A and high-capacity 55X/CE255X for the M521dn. Its Spanish store declares approximately 6,000 pages for the original 55A and 12,500 for the 55X in the M521. These are HP figures, not measurements of a third-party cartridge. Check the separate Startoner listing and CE255A reference before choosing that alternative.
HP also lists specific P3015 and M525 devices for its original 55A. The Startoner product list separately names P3015 and M525 variants, but that is not HP certification of the alternative. Check the exact device suffix rather than extrapolating from a family name.
The Startoner listing separately names these devices for its product; HP does not certify the alternative:
- HP LaserJet Enterprise 500 M525dn MFP
- HP LaserJet Enterprise 500 M525f MFP
- HP LaserJet Enterprise Flow MFP M525c
- HP LaserJet Enterprise P3015
- HP LaserJet Enterprise P3015d
- HP LaserJet Enterprise P3015dn
- HP LaserJet Enterprise P3015n
- HP LaserJet Enterprise P3015x
- HP LaserJet Pro 500 MFP M521dn
- HP LaserJet Pro 500 MFP M521dw
- HP LaserJet Pro MFP M521dn
- HP LaserJet Pro MFP M521dw
Compare your printer’s full model name and suffix with the selected variant before ordering.
Startoner CE255A declared yield
The current Startoner listing declares 6,000 pages for its compatible CE255A. That is a seller catalogue figure, not a promise that every office will print the same number. Coverage, settings and document type affect the result. Check the exact variant, current price and full printer reference before placing an order.
How to estimate cost per page
To compare cost per page, divide each current supply price by the pages declared for that exact reference. Do not use the Startoner CE255A figure of 6,000 pages for the 55X: HP declares about 12,500 pages for its original 55X in the M521. Treat VAT consistently and consider delivery, coverage and usage; the calculation does not guarantee savings.
Before paying, read Startoner’s current returns and conformity policy and shipping terms. Checkout shows final charges and estimated delivery for your destination. The conditions depend on the order and product state; a supply policy is not a general promise about the printer’s warranty.
Sources and further reading
Frequently asked questions
Which original toner options does HP list for the M521dn?
HP lists standard 55A/CE255A and high-capacity 55X/CE255X for the M521dn. Its Spanish store declares approximately 6,000 pages for the original 55A and 12,500 for the 55X in the M521. These are HP figures, not measurements of a third-party cartridge. Check the separate Startoner listing and CE255A reference before choosing that alternative.
How many pages does Startoner declare for its CE255A?
The current Startoner listing declares 6,000 pages for its compatible CE255A. That is a seller catalogue figure, not a promise that every office will print the same number. Coverage, settings and document type affect the result. Check the exact variant, current price and full printer reference before placing an order.
Does a cartridge recognition warning always mean a faulty chip?
No. A warning may reflect installation, the cartridge reference, contacts, cartridge condition or another issue specific to the printer. Record the exact message and follow official checks for your model before blaming the chip. If the warning continues with a Startoner product, give the seller the cartridge reference, printer model and error text.
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