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Sublimation printer maintenance guide

Sublimation Printer Maintenance and Troubleshooting

Sublimation printers are excellent for custom products, home businesses and small production shops, but they need regular maintenance to keep ink flowing, nozzles clear and colours consistent.

This guide covers weekly printing, nozzle checks, head cleaning, incorrect colours, pizza wheel marks, borderless printing issues, power cleaning and manual cleaning warnings.

Printer Maintenance Checklist

Print weekly, run nozzle checks before production, clean only when needed, and avoid borderless printing problems.

Print Geek rule: A clear nozzle check comes before production printing.
WeeklyKeep ink flowing
NozzleCheck before jobs
CleanOnly when needed
Preventing blockages

Print regularly to keep sublimation ink moving

Sublimation ink behaves differently to standard office printer ink. If a sublimation printer sits unused, moisture can evaporate from the ink around the print head and leave dye residue behind. Over time this can harden and block nozzles.

A simple weekly print that uses cyan, magenta, yellow and black helps keep ink moving through the head. If you have printed in the last 24 hours, you can usually skip the reminder and wait until the next week.

This is especially important for converted EcoTank printers and any sublimation printer that is used only occasionally.

CMYK sublimation weekly printer maintenance test print Example weekly CMYK print to keep sublimation ink moving.
1

Use all colours

Print something that uses cyan, magenta, yellow and black rather than only one colour channel.

2

Set a reminder

A weekly phone reminder is a simple way to prevent long idle periods.

3

Keep records

If a printer is used for business, record maintenance, nozzle checks and recurring problems.

Sublimation printer nozzle check pattern A nozzle check helps confirm all channels are printing before production.
Before production

Run a nozzle check before important prints

In print shops it is normal to run a nozzle check before the first production print of the day. A nozzle check shows whether the print head channels are clear and whether any colour channel has missing segments.

If the nozzle check is clean, you can proceed with more confidence. If there are significant breaks, there is little point printing customer artwork because you may get banding, incorrect colour or missing detail.

Epson support pages and user guides commonly direct users to print a nozzle check pattern and inspect it before cleaning. Use your exact printer model’s Epson support page where possible.

What are you looking for?

Nozzle check patterns look different depending on the printer and number of colour channels. The main thing you are looking for is missing lines, broken segments or large gaps. A tiny missing piece may sometimes clear with normal use, but repeated or significant gaps should be fixed before production printing.

Cleaning only when needed

Head cleaning: useful, but do not overdo it

A head clean pushes ink through the nozzles to help dislodge partial blockages. Many printers also use a wiper or capping system to help clean the surface of the print head.

Head cleans use ink and fill the maintenance tank or waste ink pads. There is no benefit in repeatedly cleaning a printer that already has a clean nozzle check.

Epson printer preferences screen Open your printer preferences or utility settings.
Epson printer maintenance tab Use the maintenance tab for nozzle checks and head cleaning.

Recommended cleaning workflow

  • Print a nozzle check first.
  • If the nozzle check is broken, run one head clean.
  • Print another nozzle check.
  • If it is improving, repeat up to a sensible limit.
  • If it does not improve, let the printer rest before continuing.
  • Use power cleaning only as a last resort because it uses a lot of ink.
Epson printer maintenance head cleaning option Head cleaning should be used when a nozzle check shows missing lines.
Print Geek maintenance rule:

Clean because the nozzle check says you need to clean, not because the printer has been sitting there. Unnecessary cleaning wastes ink and fills the waste tank faster.

Power cleaning warning

Power cleaning is a last-resort maintenance step

Some Epson printers include a stronger cleaning function, often called power cleaning or power ink flushing. This can help in some stubborn cases, but it uses a large amount of ink and can fill the maintenance tank quickly.

Make sure there is room in the waste tank or maintenance box before using power cleaning. It is good practice to keep a spare maintenance tank on hand if your printer uses one.

Before power cleaning

  • Run nozzle checks and normal head cleans first.
  • Allow the printer time to rest if nozzles are improving slowly.
  • Check maintenance tank or waste ink capacity.
  • Understand that power cleaning uses a lot of ink.
Troubleshooting

Common sublimation printer problems

!

Flashing lights

Download the manual for your exact printer model from Epson Australia support. The flashing or solid light pattern usually maps to a specific error in the troubleshooting section.

Wi

Printer stops during printing

If a Wi-Fi connected printer stops part way through a print, test USB connection before assuming the printer is faulty. In many cases the router, wireless signal or computer sleep/power setting is involved.

ICC

Incorrect colours

Colour issues can come from missing ICC profiles, printing from software that does not manage colour well, driver changes, wrong paper settings or blocked nozzles.

Colour troubleshooting

Incorrect sublimation colours

Sublimation prints often look dull on paper before pressing. The final colour is only seen after the ink is heat activated and transferred into the sublimation coating or polyester fabric.

If you are new to sublimation, testing on white polyester fabric can save waste. A flat press test around 190°C for 60 seconds can help show whether the colour issue is in the print, profile, press or blank.

Colour issueLikely causeWhat to check
Colours have never been correctWrong ICC profile, wrong print software, converted printer setup issue or incorrect driver settings.Ask your ink/printer supplier for the correct ICC profile and setup instructions. Use software that can manage colour properly.
Colours were good, then changedComputer update, driver update, new device, lost ICC profile or changed print settings.Reinstall the printer driver, reinstall/apply the ICC profile and check all print settings again.
Colours are dull before pressingThis can be normal for sublimation printing.Judge colour after pressing onto the correct substrate, not only by the printed transfer paper.
Dedicated Epson F160/F560 colour issueDriver, media, profile or software workflow issue.Check Epson driver setup, media settings and software workflow rather than treating it like a converted EcoTank profile issue.
Dotted lines and vertical marks

Pizza wheel marks through sublimation prints

Dotted vertical lines can occur on both converted and dedicated sublimation printers. They are commonly caused by the small star wheels or “pizza wheels” contacting wet ink or built-up ink residue on the media path.

P

Paper differences

Different sublimation papers feed differently. A paper that works perfectly in one printer may sit slightly differently in another printer of the same model due to tolerances.

Ink

Ink levels and media setting

On converted printers, plain paper settings often reduce the amount of ink laid down. Too much ink can stay wet long enough to transfer onto wheels or guides.

Edge

Borderless printing

Borderless printing can put ink where the paper does not perfectly align, causing ink to land on rollers, guides and internal parts.

Do not print borderless just to get a larger tumbler wrap.

If you need slightly wider or longer prints than A4, consider paper sizes such as US Legal where supported. A controlled printable area is better than overspray, ink stains and pizza wheel marks.

Cleaning pizza wheels:

In general, the goal is to remove ink build-up from the spring/shaft area so the pizza wheel guides return to their normal position. Use suitable cleaning fluid and firm paper, thin card or ribbon to gently work the wheels clean. Do not force parts or flood the printer.

External examples from YouTube may help visualise the process: cleaning pizza wheel marks video 1 and cleaning pizza wheel marks video 2.

When maintenance is not enough

When to stop cleaning and consider service or replacement

If repeated nozzle checks, head cleans, resting, and careful troubleshooting do not improve the printer, the issue may be more than normal maintenance.

Possible causes include severe dried ink, air locks, head strikes, old age, damaged parts, waste ink limitations or an end-of-life printer.

  • Contact Epson support for model-specific information.
  • Use a service agent if you are not comfortable dismantling parts.
  • Compare repair cost with replacing or upgrading the printer.
  • For business production, downtime has a real cost.

Upgrade resources

If you are repeatedly fighting with a converted printer, it may be time to compare dedicated sublimation printers such as the Epson F160 or Epson F560.

Advanced last-resort section

Manual head cleaning warning

Manual head cleaning is a last-resort option for people who are mechanically confident and accept the risk of damaging the printer. If you are unsure, use an Epson service agent or replace the printer.

Important safety and warranty warning:

Dismantling printer parts, moving the print head manually, unplugging during operation, flushing liquid through the head or removing dampers can damage the printer, create leaks, cause electrical risk or void warranty. This section is informational only and should not be treated as official Epson service advice.

1

Free the head from the capping station

Some advanced users move the print head out of the capping station so they can access it. This is risky and should only be done if you understand the consequences.

EcoTank printer head moved for manual maintenance access Manual access steps are advanced and risky.
2

Access the damper area

Some EcoTank-style printers have a head cover plate that must be removed to inspect dampers. Screws, plastic clips and ribbon cables can be fragile.

Removing Epson EcoTank head cover plate Only dismantle printer parts if you are confident and accept the risk.
3

Inspect dampers and air locks

Empty dampers or air locks can prevent ink reaching the print head. If dampers are not full of ink, normal head cleans may not work properly.

Removing EcoTank printer dampers Damper removal should be treated as advanced maintenance.
Good versus bad EcoTank damper priming Air locks can prevent ink reaching the print head.
4

Flush carefully only as a last resort

If a manual clean is attempted, cleaning solution must be used gently and carefully. Forcing liquid through a head can damage it.

Flushing EcoTank print head with cleaning solution Never force cleaning fluid through the print head.
5

Prime, reassemble and test

After any manual intervention, parts must be reassembled properly, ink supply restored and the printer tested using a nozzle check and test print.

Priming printer damper with syringe Damper priming requires care to avoid air locks and leaks.
Epson ET1810 printer after maintenance After reassembly, test with nozzle checks and controlled prints.
Print Geek recommendation:

Manual cleaning should not be your normal maintenance process. Regular weekly printing, nozzle checks, correct profiles, sensible paper settings and avoiding borderless printing prevent most issues before they become serious.

FAQ

Sublimation printer maintenance FAQ

How often should I print with a sublimation printer?

If the printer is not otherwise being used, a weekly print using all colour channels is a practical minimum to help keep ink moving.

How do I print a nozzle check?

On most Epson printers, go to printer preferences or the printer utility, then open the maintenance section and choose nozzle check. Use your exact printer model’s support guide if the menu is different.

How do I do a head clean?

Go to printer preferences or the printer utility, open the maintenance section and choose head cleaning. After the clean finishes, print another nozzle check before deciding what to do next.

How many head cleans can I do?

You can run multiple cleans, but do not keep cleaning endlessly. If several cleans do not clear the issue, let the printer rest, check for air locks, check waste tank capacity and consider service or power cleaning only as a last resort.

Why are my sublimation colours wrong?

Common causes include blocked nozzles, missing ICC profile, wrong print software, driver updates, wrong paper/media settings, changed computer settings or judging colour before the transfer has been pressed.

What causes dotted vertical lines in sublimation prints?

Dotted vertical lines are often caused by pizza wheel marks, wet ink, paper feed differences, excess ink laydown or ink build-up on rollers and guides.

Maintain your sublimation printer before problems start

Regular printing, nozzle checks, correct colour setup and careful cleaning habits will prevent most sublimation printer problems before they cost you time, ink and wasted blanks.