If your Canon printer suddenly displays Canon Printer Error 5B00, it usually means the printer has detected that the waste ink absorber (also called the ink absorber pad) is full or has reached its estimated capacity. This safety feature prevents excess ink from overflowing inside the printer and causing damage.

The good news is that Error 5B00 doesn’t always mean your printer is permanently broken. In many cases, you can resolve the issue by checking the waste ink system, performing a reset, or servicing the printer if necessary.

In this guide, you’ll learn what Canon Printer Error 5B00 means, why it happens, how to fix it step by step, when a service reset is required, and how to prevent the error from returning.

What Is Canon Printer Error 5B00?

Canon Printer Error 5B00 indicates that the printer’s internal waste ink counter has reached its preset limit. During printhead cleaning cycles and borderless printing, excess ink is collected in absorbent pads inside the printer. Canon monitors this process using an internal counter.

Once the counter reaches its limit, the printer stops operating and displays Error 5B00 to prevent ink overflow.

Common symptoms include:

• Error code 5B00 on the display
• Printer refuses to print
• Blinking power and alarm lights
• Printing jobs remain in the queue
• Printer enters an error state after startup

What Causes Canon Printer Error 5B00?

Several factors can trigger this error.

Full Waste Ink Absorber

The most common cause is that the waste ink pads have absorbed a significant amount of ink over time.

Frequent Printhead Cleaning

Every automatic or manual cleaning cycle pushes excess ink into the absorber pads. Frequent cleaning fills the pads faster.

Heavy Printing Volume

Users who print large numbers of pages every month may reach the absorber limit sooner than occasional users.

Waste Ink Counter Limit

Sometimes the waste ink pads still have usable capacity, but the internal counter reaches its programmed limit and triggers Error 5B00.

Firmware or Service Mode Issues

Rarely, interrupted maintenance procedures or firmware problems may contribute to the error.

How to Fix Canon Printer Error 5B00

Start with the simplest troubleshooting steps before attempting advanced solutions.

Restart the printer.

A temporary software glitch may trigger the error.

1. Turn off the printer.
2. Disconnect the power cable.
3. Wait one minute.
4. Plug the printer back in.
5. Turn it on again.

If Error 5B00 persists, continue with the next steps.

Inspect the Printer

Check for visible issues such as:

• Ink leakage
• Paper scraps
• Obstructions near the printhead
• Loose cartridges

Although these issues do not usually cause Error 5B00 directly, they can interfere with normal operation.

Clean Around the Maintenance Area

If accessible, gently clean excess ink around the maintenance station using a lint-free cloth. Avoid touching sensitive components.

Do not attempt to remove internal absorber pads unless you are comfortable disassembling the printer.

Reset Canon Printer Error 5B00 Using Service Mode

Many Canon PIXMA printers allow technicians to reset the waste ink counter through service mode.

A general procedure includes:

1. Turn the printer off.
2. Hold the Stop button.
3. While holding Stop, press and hold the Power button.
4. Release the Stop button while continuing to hold Power.
5. Press the Stop button several times (the exact number varies by model).
6. Release all buttons to enter Service Mode.

From Service Mode, a compatible service utility may be required to reset the waste ink counter.

Important: Resetting the counter without replacing or cleaning the waste ink absorber may eventually cause ink overflow. The reset should ideally be performed after servicing the absorber.

Replace or Clean the waste ink absorber.

When the absorber pads are genuinely saturated, they should be cleaned or replaced.

Typical steps include:

• Opening the printer housing
• Locating the waste ink pads
• Removing the pads carefully
• Cleaning or replacing them
• Reassembling the printer
• Resetting the waste ink counter

Because this procedure involves disassembling the printer, many users prefer professional servicing.

Update Canon Printer Drivers and firmware.

Although Error 5B00 is mainly a maintenance-related issue, outdated software can sometimes cause communication problems.

Check for:

• Updated printer drivers
• Firmware updates
• Operating system compatibility
• USB or wireless connection stability

Keeping your printer software up to date helps ensure reliable performance.

Common Canon Printer Models That May Display Error 5B00

Error 5B00 can appear on many Canon PIXMA printers, including:

• Canon PIXMA G2010
• Canon PIXMA G3000 Series
• Canon PIXMA G3010
• Canon PIXMA G4010
• Canon PIXMA MG2570
• Canon PIXMA MG2522
• Canon PIXMA TS3122
• Canon PIXMA TS3322
• Canon PIXMA MX492
• Canon PIXMA iP2770

The exact reset procedure may differ depending on the model.

Common Mistakes to Avoid

Avoid these common troubleshooting errors:

• Resetting the waste ink counter without servicing the absorber pads
• Using unofficial reset software from unknown websites
• Disconnecting power during firmware updates
• Ignoring ink leakage inside the printer
• Performing excessive printhead cleaning cycles
• Forcing printer components during disassembly

Following proper maintenance procedures reduces the risk of additional damage.

How to Prevent Canon Printer Error 5B00

You can extend the life of your printer and delay waste ink absorber saturation by following these best practices:

• Print regularly to minimize unnecessary cleaning cycles.
• Only run printhead cleaning when print quality declines.
• Use genuine or high-quality compatible ink.
• Keep the printer clean.
• Perform routine maintenance.
• Update printer firmware when available.
• Avoid unnecessary deep cleaning cycles.

Preventive maintenance can significantly reduce the likelihood of seeing Error 5B00.

Quick Answer

Canon Printer Error 5B00 means the waste ink absorber counter has reached its limit. In most cases, fixing the issue involves servicing or replacing the waste ink absorber pads and resetting the waste ink counter using the appropriate Service Mode procedure for your Canon printer model.

Frequently Asked Questions

Can I continue printing with Canon Printer Error 5B00?

No. Most Canon printers disable printing until the waste ink counter is reset and the issue is addressed.

Is Error 5B00 dangerous?

No, but it protects the printer from potential ink overflow that could damage internal components.

Can I reset Error 5B00 myself?

Some users can enter Service Mode and reset the waste ink counter, but the correct procedure varies by printer model. Cleaning or replacing the waste ink absorber is also recommended.

Does replacing ink cartridges fix Error 5B00?

No. The error is related to the waste ink absorber system, not the ink cartridges.

Should I replace the printer?

Not usually. If the printer is otherwise in good condition, replacing or servicing the waste ink absorber is often more cost-effective than buying a new printer.

Conclusion

Canon Printer Error 5B00 is a maintenance warning designed to protect your printer from waste ink overflow. While the error may seem alarming, it is usually resolved by servicing the waste ink absorber, resetting the waste ink counter, and following proper maintenance practices. By understanding the causes and applying the correct troubleshooting steps, you can restore your Canon printer to normal operation and reduce the chances of the error returning in the future.