Cleaning the printheads of an ink cartridge
Artículo · Printing Blog | Startoner

How to Clean the Print Heads (HP, Epson, Canon)

Actualizado 18 julio 2026

Summary: Cleaning the print heads solves most quality problems on inkjet printers: streaks, missing colours, faint printing. The first resort is the automatic cleaning from the printer software or its app; if that isn't enough, there's a manual cleaning of the cartridge or the head. This guide covers both methods, the steps by brand (HP, Epson, Canon, Brother) and the mistakes you should avoid so you don't damage the machine.

The print head is the part that ejects ink through hundreds of micro-nozzles. When the printer goes a while without use, the ink dries inside those nozzles and clogs them. Cleaning them restores the flow. It's the most cost-effective home repair there is: it costs nothing and solves what many people "solve" by buying a new printer.

Key points

  • The automatic cleaning from the software is always the first step: a normal cycle uses just 0.5-1% of the ink in a tank system (Epson, 2024).
  • A maximum of three cycles in a row. If it doesn't improve, switch off and let it rest before insisting: softening the dried ink is more effective than purging more ink.
  • It only applies to inkjet. Lasers have no head.
  • Deep cleaning (Power Cleaning, deep cleaning) uses much more ink: use it as a last resort.
  • The number one cause of dry heads is inactivity. Printing something each week prevents it.

When do you need to clean the print heads?

When a specific quality problem appears, not as periodic maintenance. The print head is the set of micro-nozzles that sprays the ink onto the paper; if one clogs, that colour fails. Cleaning without symptoms just wastes ink. These are the clear signs that a nozzle is blocked:

  • Horizontal white bands crossing the document.
  • A colour that comes out weak or doesn't appear (text without black, photos without magenta…).
  • Incorrect or mixed colours.
  • Generally faint printing despite having ink.

The manufacturers themselves frame it this way: Canon says you should print a check pattern and clean "only when necessary", because each cycle consumes ink (Canon, 2024). In other words, cleaning is a repair, not a routine.

Important: this applies only to inkjet printers. Laser printers have no head; if yours is a laser and prints streaks, the cause is in the toner, the drum or the fuser, not in a head. For that case, check my printer prints with streaks. And if the printer doesn't put out anything even though the cartridge has ink, start with the printer won't print even though it has ink.

Step 1 · Print a nozzle check

Before cleaning anything, print a nozzle check pattern (or "nozzle test"). It's a pattern with blocks of each colour that reveals exactly which nozzles fail. You'll find it in the printer's maintenance menu or in its app. If all the blocks come out complete, the problem isn't the head: check ink levels or settings.

This step matters because it stops you wasting ink blindly. All manufacturers recommend it as a prior diagnosis: you print the pattern, locate the gaps and only then decide whether to clean and which colour. Keep the first test to compare it with the next and see if there's real improvement.

At Star Toner we print and test our own compatible consumables before selling them, and the nozzle check is the first thing we run with each batch. What we see time and again: most of the "damaged heads" customers describe to us are actually a single colour with a couple of dropped lines, something a cleaning cycle resolves. The pattern tells you in ten seconds.

Step 2 · Automatic cleaning from the software

It's the main method and the one you should always try first. The printer purges ink under pressure to break up the blockage, and the cost is minimal: a standard cleaning cycle consumes around 0.5-1% of the total ink in a tank system, far from what people imagine (Epson, 2024). That's why it's worth exhausting this route before touching anything by hand.

From Windows

  1. Open Settings → Bluetooth & devices → Printers & scanners.
  2. Select your printer → Printing preferences or Printing options.
  3. Find the Maintenance or Service tab and choose Head cleaning.

From Mac

  1. Open System Settings → Printers & Scanners.
  2. Select the printer → Options & supplies → Utility → Open printer utility.
  3. Choose Head cleaning.

From the phone

The manufacturer's app (HP Smart, Epson Smart Panel, Canon PRINT, Brother iPrint&Scan) includes head maintenance in its settings menu. It's the most convenient route if you print from the phone. If you don't print from your phone yet, here's the guide to printing from Android and iPhone.

After cleaning, print the nozzle check again. If it improves but gaps remain, repeat the cleaning once or twice more, no more. If after three cycles there's no improvement, switch off the printer and let it rest for 6 hours: time softens the dried ink and the next cleaning usually ejects the blockage.

Citable figure: a normal cleaning cycle in an ink tank uses barely 0.5-1% of the total, whereas a "deep cleaning" (Power Cleaning) consumes several millilitres at once — the equivalent of hundreds of pages — and requires a minimum interval of 12 hours between uses (Epson, 2024). That difference is the reason not to launch the deep cleaning lightly.

Cleaning by brand: nuances worth knowing

Each manufacturer organises maintenance in its own way, and there are real hardware differences that change what you can and can't do. The key is knowing whether the head is integrated into the cartridge (it's changed when you change the ink) or is fixed (part of the printer). This table sums it up:

Brand Where the cleaning is Note
HP HP Smart → Printer settings → Tools; or printer panel → Settings → Tools On many HP models the head is integrated into the cartridge: changing the cartridge changes the head (HP, 2026).
Epson Epson Smart Panel or Epson Printer Utility → Head cleaning Fixed head, part of the printer. It offers "Power Cleaning" for difficult cases, which uses quite a lot of ink and asks for a 12 h wait (Epson, 2024).
Canon Canon IJ Printer Utility or panel → Maintenance → Cleaning / Deep cleaning It distinguishes normal and deep cleaning; use the deep one only if the normal one fails twice (Canon, 2024).
Brother Printer panel → Ink / Maintenance → Cleaning; or Brother iPrint&Scan It lets you clean black only, colour only or everything. Brother recommends repeating the cleaning of one colour up to four times if the problem persists (Brother, 2024).

That detail of the integrated head (domestic HP and Canon) has a huge advantage: if a cartridge gives trouble with streaks that won't go away, replacing it with a new one also changes the head and solves the problem in one go. HP confirms it in its own support: on integrated cartridges, replacing the cartridge replaces the nozzle (HP, 2026).

How do you clean the head by hand when the automatic one isn't enough?

If after the automatic cycles and the 6-hour rest the nozzle is still blocked, manual cleaning remains. It's more effective for hard plugs of dried ink, but also riskier: it's done with warm distilled water (never tap water, the limescale worsens the blockage) and very gently. There are two cases depending on where the head is.

If the head is in the cartridge (typical on HP and Canon)

  1. Remove the cartridge.
  2. Dampen a lint-free cloth or a cotton bud with warm distilled water or isopropyl alcohol.
  3. Pass the cloth gently over the golden nozzle area until it draws off clean ink. Don't rub hard.
  4. Rest the cartridge head on a damp cloth for 2-3 minutes to soften the blockage.
  5. Dry carefully, reinstall and print the test again.

This technique — resting or dabbing the head face-down on a cloth or coffee filter dampened with distilled water — is the one HP's own support recommends for cartridges with an integrated nozzle (HP, 2026).

If the head is fixed (typical on Epson and Brother)

The head doesn't come out easily. The safest thing is to use the "deep cleaning" in the software (Power Cleaning on Epson, deep cleaning on Canon with a fixed head). Physical interventions on fixed heads carry a real risk of damage and are best left in the hands of a service centre.

Is it worth soaking the head?

For very dry blockages, soaking the base of the integrated head in a finger of warm distilled water (never boiling, nor touching the golden electrical contacts) for a few minutes helps dissolve the crystallised ink. On fixed heads it doesn't apply: don't take them out. Soaking is the last home resort before accepting that the head is permanently damaged.

Mistakes that damage the printer

Don't use tap water (the limescale clogs more), or rough kitchen paper (it scratches the nozzles), or alcohol on heads meant for water only. Never switch off the printer halfway through a cleaning cycle: the mechanism moves the head and purges ink, and cutting the power at that moment can jam it and leave it useless. And don't chain ten cleanings in a row: they empty the cartridge without resolving anything.

Ink waste is real and avoidable. The manufacturers are explicit: Canon warns that "cleaning the head frequently quickly depletes the ink" and that deep cleaning uses more than the normal one (Canon, 2024); Brother reminds you that cleaning too much consumes ink unnecessarily (Brother, 2024). Insisting with back-to-back cycles usually costs more ink than the blockage itself.

How to stop the heads clogging again?

The best cleaning is the one you don't need. Inactivity is the number one cause of dry heads: the ink sitting inside the nozzles crystallises. HP describes it the same way — heads clog because ink residue or dust dries in the nozzle (HP, 2026) — so prevention comes down to keeping the ink moving:

  • Print regularly. One colour page a week keeps the ink fluid.
  • Switch off with the printer's button, not by cutting the power: that way the head returns to its sealed rest position.
  • Use quality ink. Certified inks keep a stable viscosity; very cheap uncertified ones dry and settle sooner.
  • Don't leave the printer without cartridges or with empty cartridges fitted for weeks.

If you want to stretch every cartridge to the maximum and reduce maintenance, we have a dedicated guide: how to extend the life of your cartridges. And if you're unsure which consumable your machine takes, look at how to know which toner your printer needs.

If the cleaning doesn't restore quality and the cartridge is recent, it may be a faulty cartridge: check the 3-year legal guarantee. And when it's time to restock, you'll find certified compatible ink cartridges for HP, Canon, Epson and Brother in our catalogue.

Frequently asked questions

How do I clean my printer's heads?

The quickest is the automatic cleaning: on Windows, go to Printers & scanners → Preferences → Maintenance → Head cleaning; on Mac, in Printers & Scanners → Utility; or from the manufacturer's app on the phone. A normal cycle uses just 0.5-1% of the ink (Epson, 2024). Print a nozzle check afterwards to verify the result.

How many times in a row can I clean the head?

A maximum of three cycles in a row. Each cleaning uses ink, and chaining cycles rarely helps. If it doesn't improve, switch off the printer and let it rest for 6 hours before trying again; that break softens the dried ink and is usually more effective than insisting. Brother even recommends up to four cleanings of the same colour, but with tests in between, not blindly (Brother, 2024).

Can I clean the head with alcohol?

Only on heads integrated into the cartridge and with isopropyl alcohol, applied with a wrung-out cotton bud. On fixed heads (common on Epson and Brother) it's preferable to use the software's deep cleaning. Never use tap water: the limescale worsens the blockage, something all manufacturers agree on (HP, 2026).

The automatic cleaning doesn't work, what do I do?

After three cycles without success, switch off the printer for 6 hours and try again. If it's still the same, try the manual cleaning of the cartridge with a lint-free cloth and warm distilled water. As a last resort there's the deep cleaning (Power Cleaning), which requires a 12 h wait between uses (Epson, 2024). If the nozzle doesn't recover, the head or the cartridge may be permanently damaged.

Do laser printers have a head to clean?

No. Laser printers use no head or nozzles: they fix the toner with a drum and a fuser. If a laser prints streaks, the cause is in the toner, the drum or the rollers, not in a head. In that case start with my printer prints with streaks.

How often should I clean the heads?

Only when there's a quality problem. It isn't periodic maintenance: cleaning without need just wastes ink, and Canon says it plainly — do it "only when necessary" (Canon, 2024). The best prevention is printing one colour page a week so the ink doesn't dry out.

Does switching off the printer halfway through cleaning ruin it?

Yes, it can leave it useless. The cleaning cycle moves the head and purges ink; interrupting it by cutting the power can jam the mechanism. Always wait for the cycle to finish completely and switch off afterwards with the printer's button, not at the socket.

Keep reading at Star Toner

Sources

  • Epson — Power Cleaning (ink consumption and 12 h interval) — https://files.support.epson.com/docid/cpd6/cpd60267/source/printers/source/ink_functions/concepts/power_cleaning.html
  • Epson — Running Power Cleaning (official procedure) — https://download4.epson.biz/sec_pubs/l8160_series/useg/en/GUID-20FC069C-CBB1-4713-8243-558B44943753.htm
  • Canon — Cleaning the Print Head (G3010 series, cleaning and deep cleaning) — https://ij.manual.canon/ij/webmanual/Manual/All/G3010%20series/EN/UG/ug_m_01_04_c.html
  • Canon — Cleaning the Print Head Deeply — https://asia.canon/en/support/8200531400
  • HP — How to Clean a Printhead: Step-by-Step Guide — https://www.hp.com/us-en/shop/tech-takes/how-to-clean-printhead
  • Brother — Cleaning the print head (repetition by colour) — https://support.brother.com/g/b/faqend.aspx?c=us&lang=en&prod=mfc990cw_all&faqid=faq00000735_015

Last updated: July 2026. Star Toner, Central Warehouse, Calle Océano Atlántico 38, 11379 Los Barrios, Cádiz. CHICTRATEC S.L. (NIF B72834534), part of the Recycop Group founded in 1998.

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