Does using a compatible cartridge void my printer warranty?

No. Using a compatible cartridge does not void your printer warranty. Statutory consumer rights and Directive (EU) 2019/771: the manufacturer must prove in writing that the damage was caused by the consumable.

What if it arrives defective or does not work?

Free exchange within 14 days and Statutory consumer rights. If it does not work, we send you a new one with a tracking number with no need to return the first.

How do I replace just one CMYK colour?

Each colour is independent. Replace only the cartridge of the empty colour and leave the other three in place: the printer automatically detects the new one and syncs it.

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HP

color HP 304A 305A compatible toner · 3,500 pages · ISO 9001

€14,99

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Taxes included. Shipping calculated at checkout.

3-year warranty
ISO 9001 certified
30-day returns
100% secure payment

3500 pages €4,28 per 1,000 pages · ISO/IEC 19752

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The compatible HP 304A 305A color toner prints up to 3,500 pages according to ISO/IEC 19798 (5% coverage). Updated compatible chip, valid after HP Dynamic Security firmware updates. ISO 9001 certified, with legal warranty. ISO 9001 certified with a 3-year legal warranty (art. 120 RDL 1/2007 and Directive (EU) 2019/771).

3 years warranty
ISO 9001
24h shipping (Mainland)
30-day returns
Customer support

Does it work in my printer?

Yes. It is compatible with 9 HP models. Find yours:

LaserJet: HP LaserJet Pro 300 Color M351a, HP LaserJet Pro 300 Color MFP M375nw, HP LaserJet Pro 400 Color M451dn, HP LaserJet Pro 400 Color M451dw, HP LaserJet Pro 400 Color M451nw, HP LaserJet Pro 400 Color MFP M475dn, HP LaserJet Pro 400 Color MFP M475dw
COLOR: HP Color LaserJet CP2025 series, HP Color LaserJet CM2320 MFP series

Don't see your model? Check your printer model or write to us before buying.

How many pages does it print?

It prints up to 3,500 pages measured according to ISO/IEC 19798 with 5% coverage. This is the same methodology HP uses for its original 304A 305A cartridge, so the comparison is fair. Actual yield depends on the type of document: dense text yields less, while emails and low-coverage documents yield more.

OEM Equivalent: HP 304A 305A.

Cost per page

Cartridge	Pages	€/page
Original HP 304A 305A	3,500	0.013 €/page
Startoner compatible	3,500	0.004 €/page

Last update: 2026-05-05.

How to install?

Turn off the printer and open the front door.
Identify the four CMYK cartridges by color or label.
If your model separates toner and drum, remove the assembly and separate the cartridge from the drum (do not touch the green roller).
Remove the used cartridge, shake the new one 5 times, and remove the tab.
Insert the cartridge into the correctly color-coded position.
Close the cover, turn on the printer, and wait for chip synchronization (typically 60 seconds).

Will I lose my printer's warranty?

No. Art. 120 of RDL 1/2007 and Directive (EU) 2019/771 prohibit manufacturers from voiding your warranty for using compatible consumables. According to Directive (EU) 2024/1799 on the right to repair (in force July 31, 2026), the use of compatible cartridges does not affect the manufacturer's warranty.

If your HP printer shows "non-original cartridge" after an HP Dynamic Security update, do not update the firmware while using compatibles. If it persists, we can help: your cartridge has a 3-year legal warranty.

Frequently Asked Questions

Is it compatible with my printer?

Yes. This compatible HP 304A 305A consumable works in 9 HP models. If you don't see yours on the list, write to us before buying and we will confirm it in less than 24 hours.

Does using a compatible cartridge void my printer's warranty?

No. Using a compatible cartridge does not void your printer's warranty. This is backed by art. 120 of RDL 1/2007 and Directive (EU) 2019/771: the manufacturer must prove in writing that the damage was caused by the consumable. This is reaffirmed by Directive (EU) 2024/1799 on the right to repair.

How many pages does it print?

Up to 3,500 pages measured according to ISO/IEC 19798 with 5% coverage. Actual yield depends on the type of document: dense text yields less, light graphics may yield more.

How long does shipping take?

24-48h shipping in the peninsula. Orders placed before 17:00 are shipped the same day. Algeciras and Cádiz, same day. Free from 50 €; below that, 3.99 €.

What if it arrives defective or doesn't work?

Free exchange within 14 calendar days (art. 102 RDL 1/2007) and 3-year legal warranty (art. 120). If it doesn't work, we will send you a new one with a tracking number without you having to return the first one.

Does it have a chip and will my printer recognize it?

Yes, it includes an updated compatible chip. If your printer shows "non-original cartridge" after a Dynamic Security update, do not update the firmware while using compatibles.

How do I change only one CMYK color?

Each color is independent. Only replace the cartridge of the exhausted color, leaving the other three in place: the printer automatically detects the new one and synchronizes it.

Free take-back program for recycling. Complies with WEEE Directive 2012/19/EU for waste electrical and electronic equipment, and with the REACH Regulation (Regulation (EC) 1907/2006) on chemical substances.

Brand Startoner (2022). Distributed by CHICTRATEC SL (Los Barrios, Cádiz). Manufactured by Grupo Recycop (Tangier, founded in 1998).