HP Printer Not Recognizing Ink Cartridge? How to Fix (and Bypass) Cartridge Errors

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Last updated: October 3, 2026 · By William Elward, founder of Castle Ink

Quick answer

When an HP printer won't recognize an ink cartridge, the cause is usually physical: tape left on the cartridge, dirty contacts, or a cartridge that isn't fully seated. Remove the cartridge, take off every bit of tape, wipe the copper contacts with a dry lint-free cloth, and push it back in until it clicks. Then turn the printer off, unplug it for 60 seconds, plug it straight into the wall and turn it back on. That clears most "cartridge problem" and "incompatible cartridge" errors.

If it still fails, look at the exact message on the screen. "Non-HP chip detected" and "used or counterfeit cartridge" are notices: press OK and the printer keeps printing. "Cartridges blocked by printer firmware" means an HP firmware update has stopped accepting that chip. The one case with no workaround is a printer enrolled in HP+, which only accepts Original HP cartridges.

HP printer showing an incompatible ink cartridge error

What does your HP printer's message mean?

HP uses several messages, and each one has a different cause. Find yours in the table before you try anything else.

What the printer says What it actually means What to do
Cartridge problem / Cartridge(s) missing or damaged The printer can't read the cartridge chip. This is usually tape, dirt or seating, and sometimes a faulty chip Work through the steps below in order
Incompatible cartridge(s) The chip was read but rejected. Common causes are the wrong cartridge number, a cartridge from another region, or firmware Check the cartridge number, then reseat and power-cycle. If it worked before, read the firmware section
Non-HP chip detected / Non-HP cartridge installed A notice that the cartridge isn't HP-branded. It isn't an error Press OK or Continue. Printing continues normally
Used or counterfeit cartridge detected / Previously used genuine HP cartridge The printer has seen this chip before. That's normal for remanufactured cartridges, which reuse original HP shells and chips Press OK or Continue. The ink gauge may show empty or "?", but the cartridge prints normally
Indicated cartridges have been blocked by printer firmware / Non-HP circuitry detected HP firmware (Dynamic Security) is refusing this chip See "When it's the firmware" below
Protected cartridge installed / Cartridge is protected HP Cartridge Protection locked this cartridge to a different printer It will only work in the printer that locked it. Use a different cartridge
Cartridge can't be used until printer is enrolled in HP Instant Ink This is an Instant Ink subscription cartridge Use a retail or replacement cartridge instead
Original HP cartridges required / non-HP cartridges not supported (HP+) The printer is enrolled in HP+ There's no workaround. See the HP+ section

How do I fix an HP cartridge that isn't recognized?

Try these in order. Most people are printing again by step 4.

  1. Check the cartridge number. It should match what your printer takes. For example, the Envy 5540 uses HP 62 and the OfficeJet 4650 uses HP 63. A cartridge that is off by one digit will never be recognized. Check the label on your old cartridge or our find ink by printer list.
  2. Remove all the tape. Cartridges have tape over the nozzles and sometimes a separate strip or orange clip over the contacts. If even a sliver is left across a contact, the printer reads the chip as dead.
  3. Clean the contacts. Wipe the copper contacts on the cartridge with a dry, lint-free cloth or cotton swab, then wipe the matching contacts inside the carriage. Don't touch the copper with your fingers, because skin oil can break the connection, and keep liquids away from the nozzle plate.
  4. Reseat it firmly. Push the cartridge in until it clicks. A cartridge sitting a millimetre too high looks the same as a seated one, and it's the most common reason an error keeps coming back.
  5. Power-cycle properly. Turn the printer off with its own button and unplug it from the wall for 60 seconds. Plug it directly into a wall outlet, not a power strip, and turn it on. This clears cartridge data that a normal restart leaves behind.
  6. Install the cartridges one at a time. If you replaced more than one cartridge, find out which one the printer is rejecting:
    1. Remove all the cartridges.
    2. Insert one new cartridge, turn the printer off, unplug it, and wait 10 to 15 minutes.
    3. Plug it back in, turn it on, and let it finish initializing.
    4. Insert the next cartridge, then turn the printer off for 30 to 60 seconds while it stays plugged in.
    5. Repeat until every cartridge is recognized.
  7. Swap in a known-good cartridge. If the old cartridge is still recognized but the new one isn't, the new one is the problem. If neither works, the problem is in the carriage contacts or the printer.
  8. Turn on bidirectional support (Windows). Go to Settings, then Printers & scanners, select your printer, open Printer properties, and on the Ports tab tick "Enable bidirectional support". Without it, HP software can report cartridge errors the printer itself doesn't have.

Why did my remanufactured HP cartridge show a warning?

Remanufactured cartridges are original HP shells that have been cleaned, refilled and tested, and they keep their original HP chips. When you install one, many HP printers say "used or counterfeit cartridge detected" or "previously used genuine HP cartridge installed". The printer is telling you it has seen that chip before. Press OK or Continue and it prints normally.

Two side effects are normal. First, the ink-level gauge may read empty, low or "?" from the first page, so judge by print quality instead. Second, the low-ink warning may stay on, and you can ignore it. Neither one means the cartridge is faulty.

Why did my HP cartridge work for a few pages and then stop?

This is the most frustrating version of the problem, and it usually has one of three causes.

  • A firmware update installed after you put the cartridge in. HP printers connected to Wi-Fi download updates on their own, often overnight. If the cartridge printed, then the printer restarted or updated and now rejects it, firmware is the likely cause. The next section explains how to check.
  • The chip is losing contact. A slightly raised cartridge or a dirty contact can work at first and then fail as the carriage moves back and forth. Repeat the cleaning and reseating steps above.
  • The workaround didn't stick. The one-at-a-time reset sometimes gets a cartridge recognized, but the printer re-checks the chip later, often after a power cycle or a firmware check, and rejects it again. If that happens, stop repeating the reset. A replacement cartridge with an updated chip is the real fix.

Before you try again, turn off automatic firmware updates (see below) so nothing changes while you troubleshoot. If you bought the cartridges from Castle Ink, contact us. Every cartridge has a 1-year guarantee, and we'll send a replacement or refund it.

When it's the firmware, not the cartridge

HP sends firmware updates to its printers, and some of them change which third-party chips the printer accepts. HP calls this "dynamic security." A cartridge that worked last month can suddenly be blocked after an update you never chose to install. Signs it's firmware:

  • The message says "blocked by printer firmware", "non-HP circuitry" or "incompatible", and the cartridge used to work.
  • Several non-HP cartridges fail at once, even from different packs.
  • The printer status report shows a firmware date after you installed the cartridge. To print the report, go to Setup, then Reports, then Printer Status Report.

Turn off automatic updates first so this doesn't happen again:

  • Printer control panel: Setup (gear icon), then Printer Maintenance or Tools, then Update the Printer. Set Auto Update or Install Updates Automatically to Off, or to Notify Me.
  • Embedded Web Server: type the printer's IP address into a browser on the same network, open Tools or Web Services, then Printer Updates, and turn automatic updates off.
  • HP Smart app: select the printer, open Printer Settings, then Advanced Settings, then Printer Updates, and turn off automatic installs.

Rolling firmware back is usually not possible on home models, which is why turning updates off in advance matters. If an update has already blocked your cartridges, you need cartridges with an updated chip. Our guides on stopping HP firmware updates from blocking your ink and what printer firmware updates change go into more detail.

Should I turn off HP Cartridge Protection?

Cartridge Protection is often misunderstood. It doesn't block third-party ink. It locks a cartridge to the first printer it's installed in, so that cartridge can't be used in another printer. Turning it off is worthwhile because it keeps your cartridges usable in other printers, but it won't unlock a cartridge another printer has already protected, and it won't override a firmware block.

  • On the printer: Setup, then Preferences or Printer Maintenance, then Cartridge Protection. Set it to Disable.
  • Embedded Web Server: Settings, then Preferences, then HP Cartridge Protection. Set it to Disable.
  • Mac: open HP Utility, then Supplies Status or Preferences, then Cartridge Protection.

The one case with no workaround: HP+

If your printer's model number ends in "e" (for example the DeskJet 2755e, Envy 6455e or OfficeJet Pro 8025e) and you accepted HP+ during setup, it can only use Original HP cartridges for its whole life. That's the condition HP attaches to HP+ in exchange for the extra warranty and free Instant Ink months, and enrolment can't be reversed.

No compatible or remanufactured cartridge, from us or anyone else, will work in an HP+ printer, so be wary of any seller who claims otherwise. To check, open HP Smart and look for HP+ on the printer's account page, or print a Printer Status Report. If you're shopping for ink for an "e" model, check this before you buy. An "e" printer that was set up without HP+ works normally with remanufactured ink.

Shop HP ink by printer

These printer pages list every cartridge that fits, with remanufactured options that ship the same day when you order by 4 PM ET:

Frequently asked questions

Why does my HP printer say "cartridge problem" with a new cartridge?
Usually there's tape left on the cartridge, dirt on the contacts, or the cartridge isn't fully seated. Remove the tape, clean the contacts, reseat until it clicks, and power-cycle the printer with it unplugged for 60 seconds. If the message continues, the steps above will show whether the cartridge, the printer or the firmware is the cause.

How do I bypass the HP incompatible cartridge error?
Install the cartridges one at a time with a full unplug between each (step 6 above), and turn off automatic firmware updates. That gets most non-HP cartridges recognized. Nothing reliably gets around a firmware block or an HP+ enrolment. In those cases you need cartridges with an updated chip, or Original HP cartridges if the printer is on HP+.

Can I turn off the "non-HP chip detected" message?
No. It appears once each time you install a non-HP cartridge. Acknowledge it and it won't come back for that cartridge. It doesn't affect print quality or speed.

Will using non-HP ink void my HP printer warranty?
Not by itself. In the US, the Magnuson-Moss Warranty Act stops a manufacturer from voiding a warranty just because you used third-party supplies. HP can refuse to cover damage that a specific cartridge clearly caused. HP+ is different: it's a program you agreed to, not a warranty condition. More detail: does compatible ink void your warranty?

My new remanufactured cartridge shows as empty. Is it faulty?
Almost certainly not. Remanufactured cartridges reuse HP chips that the printer remembers as used, so the gauge can read empty while the cartridge is full. Keep printing and go by the output.

Why did my cartridge work for weeks and then stop?
Usually a firmware update. Check the date on the Printer Status Report, turn automatic updates off, and replace the cartridge with one that has an updated chip.

Can I return cartridges my printer won't accept?
Castle Ink cartridges carry a 1-year 100% satisfaction guarantee. If one doesn't work in your printer, contact us with your order number and printer model, and we'll replace or refund it.

Related guides

Written by William Elward, founder of Castle Ink, with 20+ years helping people fix printer and ink problems.

Need replacement HP ink cartridges? Shop HP ink cartridges at Castle Ink. Remanufactured, up to 70% less than OEM, and shipped the same day when you order by 4 PM ET.

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Written and reviewed by — Founder of Castle Ink, 20+ years in the printer & imaging supplies industry.

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