There is no difference. HP 142A is the commercial model name of the cartridge, while W1420A is the exact internal manufacturer part number. They refer to the exact same toner cartridge.

No. Under European law (and the Magnuson-Moss Warranty Act in the US), a printer manufacturer cannot legally void your hardware warranty simply because you choose to use third-party or compatible consumables. Your printer warranty remains intact.

HP+ is a subscription-like service. If you bought an HP printer with an "e" at the end (like M140we) and activated HP+, you agreed to HP's terms which force the printer to only accept original HP chips. Our compatible toner will be blocked by the printer's firmware in these specific "e" models.

Yes. Our HP 142A compatible toner comes with an upgraded, pre-installed smart chip. You do not need to perform any frustrating chip-transfer operations from your old toner. It is truly plug-and-play.

This cartridge is rated for 950 pages, adhering strictly to the ISO/IEC 19752 standard for page yield. Keep in mind that ISO standards measure yield based on 5% page coverage (equivalent to a short paragraph of text on a page). Printing dense graphics or full pages of text will reduce the total output.

Yes, this is completely normal. HP programs their software to notify you when a non-original cartridge is installed. Simply click "OK", "Continue", or close the prompt. The printer will function perfectly.

Since this toner has a fully functioning smart chip, your printer software and screen will track the toner levels just like the original, alerting you when it is time to reorder.

Absolutely. You can drop off empty compatible toner cartridges at local electronic waste recycling centers or office supply stores that accept plastics and electronic components.

If kept in its original sealed foil bag, in a cool, dry place away from direct sunlight, the toner will easily last 24 to 36 months without any degradation in print quality.

Yes. We use premium pulverized toner powder that guarantees deep, sharp, and smudge-proof blacks, ideal for professional invoices, barcodes, and legal documents.

Yes, the standard HP LaserJet MFP M140w accepts our compatible W1420A toner perfectly. Just make sure it is the M140w and not the M140we (HP+ version).

With our product, you don't need to reset anything. The included pre-installed chip automatically communicates with the printer. There are no manual resets required for our premium cartridges.

While our chips are built with the latest firmware data, printer manufacturers occasionally push new updates to block compatibles. To be safe, we strongly advise disabling automatic firmware updates in the HP Smart app.

Printer manufacturers often sell the printer hardware at a loss and make their profit back by charging high margins on replacement consumables (the "razor and blades" business model). We don't sell printers, so we can offer the toner at a fair, cost-plus price.

No special cleaning is required. Our cartridges are sealed and leak-proof, functioning identically to the OEM unit.

Defect rates for our premium compatibles are extremely low (under 1%). However, if you experience any issue, we offer a full guarantee and will promptly replace the unit or issue a refund.

No. A high-quality compatible toner is built to the exact physical dimensions of the original. It will not break gears, leak inside, or harm the fuser unit.

No. Your LaserJet will print at its exact rated speed (up to 21 pages per minute for the M140 series) regardless of whether you use OEM or our compatible cartridge.

Toner compatibility is independent of the operating system. As long as your printer is connected to your Mac or PC, the toner will print whatever you send to it.

The printer will refuse to print. It will display an error message stating that the cartridge is blocked because it lacks an original HP chip, and you will not be able to bypass it. Please check your model number carefully.

The HP 142A is an all-in-one cartridge. It contains both the toner powder compartment and the imaging drum unit in a single piece. When you replace the cartridge, you are replacing the drum as well, which ensures consistent high quality.

Open the HP Smart App, click on your printer, go to Advanced Settings > Security > Administrator Settings, and uncheck "Printer Updates" or "Firmware Updates", then click Apply.

The HP 142A is a monochrome (black only) printer, so it only takes one cartridge at a time. There is nothing to mix. You can switch from an original to a compatible without any transition issues.

We process orders immediately. Most orders within mainland Spain are delivered within 24 to 48 hours, ensuring your office never runs out of ink when you need it most.

We accept all major credit/debit cards via our secure encrypted checkout on tonershopmadrid.com.