Canon Printer Support Codes: Complete UK Error Guide - PrinterTeck

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Canon PIXMA printers use support codes to identify problems such as missing paper, paper jams, incorrectly installed cartridges, settings conflicts and internal faults. The code may appear on the printer display, in a message on your computer or in the Canon printing app.

The useful part is that a support code narrows down the fault. The difficult part is that the same-looking PIXMA printers do not always use the same codes or troubleshooting procedure.

This UK guide explains the most common Canon printer support codes, what they usually mean and what you can safely check before arranging a repair.

Important: Canon support codes and corrective steps can vary by printer family. Confirm the code against the manual or official support page for your exact model before removing parts, overriding an ink warning or booking a repair.

Quick Answer: What Is a Canon Printer Support Code?

A Canon support code is an error number displayed with a message when a PIXMA printer needs attention. For example:

1000 commonly indicates that there is no paper in the rear tray.
1300 usually indicates a paper jam.
1684 means the installed ink cartridge cannot be recognised or may be incompatible.
2110 indicates that the paper settings do not match the paper loaded in the printer.
5100 points to an obstruction or movement problem around the cartridge holder.
B200 is a service-level printer error on models that display it.

The code is more useful than a message such as “Printer error” because it helps identify which checks are relevant.

Canon PIXMA Support Code Lookup Chart

Use this table as a quick starting point. The precise meaning and button sequence may differ by model.

Support code	Usual meaning	First safe action
1000	No paper in the rear tray	Load paper correctly and select OK or Resume
1003	No paper in the cassette	Load the supported paper size in the cassette
1200	Scanner unit or cover is open	Close the cover fully
1300	Paper jam near the output or feed path	Switch off if necessary and remove visible paper carefully
1303	Paper jam inside the printer	Follow the model-specific internal jam procedure
1304	Paper jam during automatic duplex printing	Remove the jam and check curled or unsuitable paper
1310	Paper size may not support automatic duplex printing	Confirm the size and print-side settings
1401	FINE cartridge is not installed	Install the correct cartridge securely
1403	Appropriate FINE cartridge is not installed	Reseat or replace the indicated cartridge
1430	Cartridge cannot be recognised	Reinstall the cartridge and check compatibility
1485	Cartridge may be installed in the wrong position	Fit each cartridge in its correct slot
1682	FINE cartridge cannot be recognised	Reseat it; replace it if the error remains
1684	Ink cartridge cannot be recognised	Check the cartridge number and installation
1686	Remaining ink level cannot be detected correctly	Replace the cartridge or follow the model-specific override
1687	Cartridge is not installed correctly	Remove and reinstall the correct cartridge
1688	Ink has run out	Replace the cartridge or use the documented override if appropriate
1700–1702	Ink absorber is nearly full	Continue temporarily if permitted and arrange service
1890	Protective material or tape may remain	Remove shipping material shown in the setup guide
2110	Print settings do not match cassette paper information	Use the loaded paper or change the print settings
2113	Rear-tray paper settings do not match	Confirm the loaded size and media type
2500	Automatic printhead alignment failed	Check paper, nozzles and lighting, then retry
4100	Printing cannot continue with the current settings	Change the specified paper or print setting
4103	Printing cannot continue with the selected paper size or media type	Correct the incompatible setting
5011	Internal printer or scanner error	Restart once; seek service if it returns
5012	Scanner-related internal error on applicable models	Restart and check the scanner area
5100	Cartridge-holder movement is obstructed	Remove jams or packing material and check cartridge seating
5200	General printer error	Switch off, unplug briefly and restart once
5B00–5B02	Ink-absorber or service-required condition	Arrange professional service
6000	Paper-feed or internal printer error	Check for paper or foreign objects, then restart
6500	Internal printer error	Restart once; contact support if unresolved
6800–6900 family	Internal hardware or logic fault	Follow the exact model page and seek service if it persists
B200	Service-level printer error	Switch off, unplug and contact Canon support
B203	Repair-required printer error	Switch off, unplug and arrange service
C000	General printer error	Restart once and seek service if the code returns

This chart is deliberately cautious. A code should not be used to diagnose an expensive component without checking the exact PIXMA model.

Why the Exact Canon PIXMA Model Matters

Canon has used the PIXMA name across a very large range, including:

PIXMA TS home printers
PIXMA TR home-office printers
PIXMA MG multifunction printers
PIXMA MX office printers
PIXMA iP photo and document printers
PIXMA PRO and imagePROGRAF photo printers
PIXMA G MegaTank printers

Their controls, cartridge systems and paper paths differ. A printer with a small LCD may show a full support code, while a model without a screen may communicate through an alarm light and a message on the connected computer.

Find the complete model name on the front, rear label, underside or printer information page. Record all letters and numbers—for example, PIXMA TS5150, PIXMA TS5350a and PIXMA TR4650 should not be treated as the same model.

Then use the Canon UK support portal to find its manual and current troubleshooting instructions.

Before Troubleshooting a Canon Support Code

Complete these checks before changing settings or dismantling anything:

Write down the full support code and message.
Record whether the alarm or power light is flashing.
Note what the printer was doing when the error appeared.
Confirm the complete printer model.
Cancel queued print jobs if the printer allows it.
Check for visible paper, open covers and incorrectly seated cartridges.
Follow the official procedure for that model.

Avoid repeatedly switching the printer on and off while the carriage is moving. Do not force the printhead or cartridge holder by hand unless the model instructions specifically tell you to move it.

Canon Paper and Paper-Feed Support Codes

Support Code 1000: No Paper in the Rear Tray

Code 1000 usually means the printer cannot detect paper in the rear tray.

To correct it:

Remove badly curled, damp or damaged sheets.
Load a supported paper size with the correct side facing the required direction.
Align the paper guides so they touch the stack without bending it.
Close the feed-slot cover if the model has one.
Select OK, Resume or the option shown on screen.

If paper is loaded but 1000 returns, reduce the stack and inspect the feed entrance for scraps or foreign objects. Do not push tools deep into the printer.

Support Code 1003: No Paper in the Cassette

Code 1003 is commonly associated with a cassette that is empty or cannot feed the selected paper.

Check that:

Paper is loaded in the cassette rather than only in the rear tray.
The paper size is supported from that source.
The guides are correctly positioned.
The cassette is pushed fully into the printer.
The source selected in the print settings matches the loaded tray.

Some PIXMA models accept plain A4 paper from a cassette but require photo media or other sizes in the rear tray.

Support Code 1200: Cover Is Open

Code 1200 normally means the scanning unit, printer cover or cartridge-access cover is open.

Remove your hands and any objects from the printer, then close the cover gently until it is fully seated. Never force it shut over packaging, a cartridge or trapped paper.

If the cover is closed and the code remains, check for a small obstruction around the edge. A persistent error can indicate a cover sensor or latch problem requiring service.

Support Codes 1300, 1303 and 1304: Paper Jams

Canon uses several codes to distinguish paper-jam locations.

Code	Typical location
1300	Paper feed or output area
1303	Inside the printer or paper path
1304	Automatic duplex path

Safe jam removal principles are the same:

Stop printing.
Pull paper slowly in the direction recommended for the model.
Use both hands where possible so the sheet does not tear.
Check for small scraps after removing the main sheet.
Reload flat, dry paper within the tray limit.
Restart printing only after all covers are closed.

Do not use scissors, screwdrivers or sharp tools inside the paper path. Avoid touching the transparent encoder strip, timing film, electrical contacts or ink tubes.

If the paper tears and cannot be reached through a normal access area, follow the model’s internal jam instructions rather than removing external panels.

Support Code 1310: Automatic Duplex Printing Problem

On applicable models, 1310 may appear when the selected paper size is unsuitable for automatic two-sided printing or a duplex operation cannot continue.

Confirm that:

The paper size supports automatic duplex printing.
The media type is set to plain paper where required.
The sheet is not unusually thick, curled or damp.
The correct page size is selected in the application and driver.

You may need to print one side and turn the sheets manually when the chosen media is not supported by the duplex unit.

Canon FINE Cartridge and Ink Support Codes

Many home PIXMA printers use two FINE cartridges: one Black and one Colour. Other PIXMA models use separate PGI and CLI ink tanks. The corrective action depends on which system your printer has.

Before ordering ink, check the full printer model and the number printed on the existing cartridge. UK cartridge families can differ from versions shown on overseas websites.

For a model-to-ink lookup, link this section to your Canon PIXMA Ink Cartridge Compatibility Chart UK.

Support Code 1401: FINE Cartridge Not Installed

Code 1401 means the printer cannot detect a required FINE cartridge.

Open the cartridge cover only when the printer is ready. Check that both required cartridges are present, in the correct positions and locked into place. Remove all orange tape and protective material from a new cartridge, but do not touch its electrical contacts or nozzles.

If a correctly installed cartridge is still not detected, remove it once, inspect it for damage and reinstall it firmly.

Support Code 1403: Appropriate FINE Cartridge Not Installed

Code 1403 generally means the installed cartridge is unsuitable, damaged or not being identified as the correct cartridge.

Check:

The cartridge number matches the exact UK printer model.
Black and Colour cartridges are in their correct positions.
The cartridge is not physically damaged.
The electrical contacts are clean and dry.
No protective tape remains.

If the correct cartridge has failed electrically, replacement is normally required.

Support Codes 1430 and 1682: Cartridge Cannot Be Recognised

These codes indicate that the printer cannot communicate correctly with an installed cartridge on applicable models.

Try the following once:

Remove the indicated cartridge.
Check its number and condition.
Wipe only the electrical contact gently with a clean, dry, lint-free material if visibly contaminated.
Reinstall it until it clicks or locks into place.
Close the cover and allow the printer to initialise.

Replace the cartridge if the error continues. If more than one known-good cartridge produces the same code in the same position, the printer’s carriage contacts may require professional attention.

Support Code 1485: Cartridge in the Wrong Position

Where this code applies, one or more cartridges may be fitted in the wrong slot.

Match the cartridge label and colour to the markings on the holder. On individual-ink printers, never assume that an ink tank belongs in a slot because its casing appears to fit.

Support Code 1684: Ink Cartridge Cannot Be Recognised

Code 1684 commonly means the cartridge is incompatible with the printer or is not installed correctly.

This often occurs after:

Buying a cartridge for a similar overseas printer
Confusing two Canon cartridge families
Installing the cartridge incompletely
Leaving protective tape attached
Using a damaged or faulty cartridge

Confirm compatibility before assuming the printer itself is faulty. A cartridge that physically fits is not necessarily electronically compatible.

If you need broader diagnosis, see why a printer is not recognising an ink cartridge.

Support Code 1686: Remaining Ink Level Cannot Be Detected

Code 1686 means the printer cannot correctly determine how much ink remains. This can occur with a refilled or previously used cartridge, although the exact circumstances vary.

The best option is to replace the affected cartridge. Some models allow printing to continue by holding the Stop or Stop/Reset button for at least five seconds. Doing so disables remaining-ink detection for that cartridge.

Only use an override when it is documented for the exact printer and you accept the consequences. Once monitoring is disabled, check print quality and replace the cartridge before it runs dry. Do not apply a five-second override indiscriminately to unrelated errors.

Support Code 1687: Cartridge Not Installed Correctly

This code usually indicates that a cartridge is missing, in the wrong position or not locked into place.

Remove and reinstall the correct cartridges while following the diagram inside the access cover. If the holder does not move to the replacement position, do not drag it by force.

Support Code 1688: Ink Has Run Out

Code 1688 indicates that the printer considers the ink empty.

Replacing the cartridge is the recommended action. On some models, Canon provides a button-hold procedure to continue temporarily with ink-level detection disabled. Printing with an exhausted cartridge can produce poor output and may harm the printhead, so the override should not be treated as a permanent solution.

Why the Correct Cartridge Can Still Produce an Error

Even when the number appears correct, a cartridge error can be caused by:

A regional mismatch
Dirty or damaged contacts
An electronic chip failure
A cartridge installed in the wrong slot
Protective tape remaining
A refilled cartridge whose ink level cannot be monitored
Damage inside the cartridge holder
A model that requires all cartridges to be present

Record whether the message identifies Black, Colour or a particular ink-tank position. That detail can prevent replacing the wrong item.

Ink-Absorber Support Codes

Canon inkjet printers use internal absorber material to collect ink discharged during cleaning, borderless printing and maintenance. The printer estimates how full the absorber has become.

Support Codes 1700, 1701 and 1702: Ink Absorber Almost Full

These codes generally warn that an absorber is approaching its service limit.

The printer may allow you to select OK or press a button to complete the current job. Treat that as temporary. Arrange service before the printer reaches the stop condition.

Do not simply reset an absorber counter without inspecting or replacing the absorber system. A counter reset does not remove waste ink and can allow leakage inside or beneath the printer.

Support Codes 5B00, 5B01 and 5B02: Service Required

Codes in the 5B00 family are service-required errors commonly associated with the ink-absorber system on applicable PIXMA models. The printer may stop to prevent waste ink from overflowing.

The appropriate response is to:

Switch the printer off.
Keep it level to reduce the risk of ink leakage.
Contact Canon or a qualified printer technician.
Compare the repair cost with the printer’s age and replacement value.

Online instructions sometimes describe hidden service-mode resets. These are not a complete repair, can be model-specific and may leave saturated absorber material inside the machine.

Paper-Setting Mismatch Codes

Support Code 2110: Cassette Paper Does Not Match

Code 2110 appears when the page size or media type selected for a print or copy job conflicts with the paper information registered for the cassette.

Depending on the model, the display may offer choices such as:

Print on the currently loaded paper
Replace the paper and continue
Cancel the job
Change the paper settings

Check three places:

The actual paper loaded in the cassette
The paper size and type registered on the printer
The page size and media type selected in the application or driver

All three should agree.

Support Codes 2113 and 2114: Rear-Tray or Feed Settings Conflict

These codes have a similar cause but apply to other paper sources or paper-setting checks on supported models.

If you intentionally loaded a different size, change both the printer registration and the document’s print settings. Avoid selecting “print anyway” repeatedly, because scaling and cropping may produce an unusable result.

Support Codes 4100 and 4103: Current Print Settings Cannot Be Used

These codes indicate that printing cannot continue with the selected combination of settings. A particular paper size, media type, quality mode or borderless option may be unsupported.

Return to the print dialogue and choose a supported combination. For example, borderless printing is normally available only for specific sizes and media types.

Mechanical and Internal Canon Printer Errors

Support Code 5100: Cartridge Holder Cannot Move Correctly

Code 5100 is one of the most common Canon PIXMA errors. It usually means the cartridge holder or carriage cannot complete its normal movement.

Possible causes include:

Jammed paper or a torn scrap
Packaging or orange protective material left inside
A cartridge or ink tank installed incorrectly
A foreign object in the carriage path
Contamination or damage affecting the positioning system
A mechanical failure

Safe checks:

Cancel printing and switch off the printer.
Unplug it if the model instructions require this before internal inspection.
Open the normal user-access cover.
Remove visible loose paper or packaging without touching delicate strips or belts.
Confirm every cartridge is locked in place.
Close the cover and restart once.

Do not touch or wipe the clear encoder film unless Canon’s exact instructions direct you to do so. Fingerprints, grease or scratches can cause positioning errors. Do not force the holder along its rail.

If 5100 immediately returns when the interior is clear, arrange service.

Support Code 5200: General Printer Error

Code 5200 is a general printer error whose underlying cause and procedure can vary by model.

Allow the printer to stop, switch it off, disconnect the power cable and wait briefly before reconnecting it. Ensure the printer is connected directly to a suitable socket for the test.

If the code reappears, do not repeatedly clean the printhead or replace multiple cartridges without evidence. Use Canon’s page for the exact model or arrange service.

Support Code 6000: Paper-Feed or Internal Error

Code 6000 can occur when the printer cannot initialise or complete a paper-feed operation.

Check for:

Jammed paper
Small foreign objects in accessible feed areas
A blocked or overloaded tray
A cover or cassette that is not correctly fitted
An internal mechanism that cannot rotate

After removing an obvious obstruction, restart the printer once. Persistent 6000 errors usually require professional diagnosis.

Support Codes 5011 and 5012

These are internal errors on applicable models and may involve the scanner or another printer mechanism.

Switch the machine off, unplug it, wait and reconnect it. Ensure the scanner lid and scanning unit move normally without forcing them. If the code remains, contact Canon support.

Support Codes 6500, 6800 and 6900-Series Errors

These codes normally indicate internal electronic, mechanical or control faults. The exact meaning depends heavily on the model and any additional digits displayed.

Record the complete code. Perform only the official power-restart procedure, then seek service if the error returns. Component substitution and service-mode changes are not appropriate first-line troubleshooting.

Support Code C000: General Printer Error

C000 is a broad printer error on certain PIXMA models.

Check accessible areas for packing material, paper and incorrectly seated ink tanks. Switch the printer off, unplug it and restart it once. If C000 returns, the printer needs model-specific diagnosis or repair.

Canon B200 and B203 Support Codes

Support Code B200

B200 is a service-level printer error. It is frequently discussed online as a printhead fault, but it should not be used to condemn the printhead without model-specific diagnosis.

Canon’s official response for affected models is generally to switch off the printer, unplug it and contact a service centre.

Avoid repeatedly power-cycling the printer, applying undocumented button sequences or fitting an expensive printhead on the basis of the code alone. The fault can involve circuitry that requires proper testing.

Support Code B203

B203 is also a repair-required error on supported models. Switch the printer off, unplug it and contact Canon or a qualified repairer.

If the printer is outside warranty, compare:

The inspection and repair charge
The price and availability of genuine parts
The age and condition of the printer
The value of unused cartridges you already own
The running cost of a suitable replacement

Do not discard installed cartridges until you know whether they fit another printer or are needed for a warranty claim.

What Do Flashing Orange or Alarm Lights Mean?

Some Canon PIXMA printers do not have a display capable of showing a complete code. Instead, the Alarm lamp flashes in a repeating pattern, often followed by a pause.

To identify the error:

Count the flashes in one complete sequence.
Wait for the pause.
Count a second sequence to confirm it.
Check the message shown on the connected computer or Canon app.
Compare the flash count with the manual for the exact printer.

Do not use a flash-count table from a different PIXMA family. The meaning of a particular number of flashes is not universal across every Canon printer.

Alternating power and alarm lights can indicate a more serious fault than a simple paper or ink warning. Record both the pattern and any computer message before switching the printer off.

How to Reset a Canon PIXMA Printer Safely

A normal power restart can clear a temporary communication or control error. It does not repair a damaged part or reset a genuine waste-ink condition.

Use this basic procedure unless the model guide says otherwise:

Cancel the print job if possible.
Switch the printer off with its power button.
Disconnect the power cable.
Wait approximately 60 seconds.
Reconnect the printer directly to power.
Switch it on and wait for initialisation to finish.

If the same support code returns immediately, record it and follow its specific instructions.

Power Restart Versus Factory Reset

A power restart preserves normal settings. A factory or network reset may erase:

Wi-Fi credentials
Network settings
Paper preferences
Cloud-service connections
Other customised settings

A factory reset is rarely the correct response to a paper jam, incompatible cartridge, absorber warning or internal hardware code.

Service Mode Is Not a General Reset

Service mode is intended for controlled maintenance by people who understand the exact model and procedure. Incorrect commands can alter counters, print calibration data or settings without repairing the cause.

Do not enter service mode merely because a video uses a similar-looking printer.

What Not to Do When a Support Code Appears

Avoid these common mistakes:

Do not force the cartridge holder to move.
Do not pull jammed paper aggressively against the normal feed direction.
Do not use sharp tools inside the printer.
Do not touch the encoder strip, printhead contacts or ink nozzles.
Do not install a cartridge simply because it looks the same.
Do not override every ink warning with the Stop button.
Do not reset an ink-absorber counter without servicing the absorber.
Do not install firmware or service software intended for another model.
Do not continue using a printer that smells hot, makes grinding noises or leaks ink.
Do not dismantle a printer that is under warranty.

When Should You Contact Canon Support?

Stop troubleshooting and arrange help when:

B200 or B203 remains displayed.
A 5B00-family error prevents printing.
5100, 5200, 6000 or C000 returns after safe checks and one restart.
The carriage, feed rollers or scanner make grinding noises.
Ink is leaking from the base.
You can see damaged wiring, a cracked rail or burnt components.
The printer will not power on.
Paper is trapped beyond the normal user-access areas.
A known-good correct cartridge is rejected repeatedly in the same slot.
The printer is covered by warranty or retailer protection.

Have the following ready:

Complete printer model
Serial number
Exact support code
Full accompanying message
Flash pattern
Operating system or device used
Steps already attempted
Cartridge numbers installed
Purchase date and proof of purchase

Repair or Replace a Canon PIXMA Printer?

Repair may be sensible when the printer is fairly new, under warranty, uses cartridges you already own or has a clearly replaceable part.

Replacement may make more sense when:

The printer has repeated service-level faults.
Absorber service costs approach the value of the machine.
A major board, carriage or printhead is unavailable or expensive.
The printer no longer meets your connectivity or volume requirements.
Driver support for your computers has ended.
Running costs are high compared with a suitable current model.

Include the cost of a full set of replacement ink when comparing options. A low printer price can be misleading if it is supplied with low-capacity setup cartridges.

For a structured diagnosis before deciding, use the complete printer troubleshooting guide.

Frequently Asked Questions

Where do I find the Canon support code?

The code may appear on the printer’s LCD, on the connected computer, in the print queue or in the Canon app. Record both the number and the full message because the wording can identify the affected tray or cartridge.

Are Canon support codes the same on every PIXMA printer?

No. Many common codes are used across several families, but the meaning and corrective procedure can vary. Always confirm the code using the manual or support page for the complete printer model.

What does Canon support code 1000 mean?

It usually means no paper is detected in the rear tray. Load supported paper, align the guides, close the feed cover where fitted and select OK or Resume.

What does support code 1300 mean?

Code 1300 commonly indicates a paper jam around the feed or output path. Remove visible paper slowly and check for torn scraps. Use the exact model’s instructions if the sheet is inside the printer.

What is the difference between 1300, 1303 and 1304?

They generally identify different jam locations: 1300 near the normal feed or output area, 1303 inside the printer and 1304 in the automatic duplex path. The access procedure varies by model.

How do I fix Canon code 1684?

Confirm that the cartridge number is correct for the UK printer, remove all protective material and reinstall it in the correct position. Replace the cartridge if it remains unrecognised.

Can I bypass Canon code 1686 or 1688?

Some models allow printing to continue by holding Stop or Stop/Reset for at least five seconds, which disables ink-level detection for the affected cartridge. Use this only when the official instructions for your model provide it. Replacing the cartridge is safer.

What does support code 2110 mean?

The paper size or type selected for the job does not match the paper information registered for the cassette. Make the loaded paper, printer registration and software print settings agree.

How do I fix Canon support code 5100?

Check for jammed paper, scraps, packing material and incorrectly installed cartridges. Do not force the carriage or touch the clear positioning strip. Restart once after clearing an obvious obstruction; arrange service if the code returns.

Is Canon code 5200 an ink error?

It is safer to treat 5200 as a general printer error because its context can differ by model. Perform the official restart and check the model-specific Canon page rather than replacing ink without evidence.

What does Canon error B200 mean?

B200 is a service-level printer error. Although it is often described online as a printhead fault, the code alone does not prove which component has failed. Switch off, unplug and contact Canon support or a qualified technician.

Can I reset a B200 error myself?

A normal restart may confirm whether the condition was temporary, but undocumented reset sequences do not repair damaged electronics or a failed printhead. If B200 returns, professional diagnosis is recommended.

What does 5B00 mean on a Canon PIXMA printer?

On applicable models, the 5B00 family is a service-required condition commonly associated with the waste-ink absorber system. Resetting a counter without servicing the absorber can allow ink to leak, so arrange proper maintenance.

Why is the orange light flashing on my Canon printer?

The Alarm lamp uses repeating flashes to indicate a fault on printers without a detailed display. Count the flashes, note the pause and check the exact model’s manual. A computer message may also show the related support code.

Will unplugging the printer clear a support code?

It can clear a temporary control error, but it will not remove jammed paper, make an incompatible cartridge work, empty an absorber or repair failed hardware. If the same code returns, follow its specific procedure.

Should I download a Canon reset tool?

Do not use unofficial reset utilities. They may be intended for another model, contain unsafe software or change service data without fixing the physical fault. Use Canon’s official support information or a qualified repairer.

Can compatible cartridges cause Canon support codes?

A faulty, incompatible or incorrectly identified cartridge can produce recognition errors, but original cartridges can also fail or be installed incorrectly. Check the exact cartridge number, region, contacts and installation before drawing a conclusion.

Final Canon Support-Code Checklist

Before arranging a repair, confirm that you have:

Written down the complete code and message
Identified the exact PIXMA model
Counted any repeating alarm-light flashes
Checked paper and normal user-access areas
Confirmed covers and cassettes are closed
Verified cartridge numbers and positions
Matched paper settings to the loaded media
Performed no more than one controlled power restart
Avoided forcing the carriage or using sharp tools
Checked the official Canon UK page for the model
Recorded what happened immediately before the error
Checked warranty status before dismantling anything

Canon support codes make troubleshooting more precise, but the code must always be interpreted in the context of the exact printer. Start with the simple physical checks, use only the override or reset procedure Canon documents for that model, and treat recurring internal or service-level codes as repair issues rather than invitations to keep resetting the printer.