Canon Printer Error 6502 — What It Means & How to Fix It

What Does This Error Mean?

Canon error 6502 means the ink absorber inside the printer is nearly or completely full. The ink absorber is a pad inside the printer that soaks up waste ink from printhead cleaning cycles. When it fills up, Canon's software stops the printer to prevent ink from leaking out onto your desk or inside your machine.

Affected Models

Canon Pixma MG Series
Canon Pixma MP Series
Canon Pixma iP Series
Canon Pixma MX Series
Canon Pixma TR Series

Common Causes

Years of normal use have gradually filled the ink absorber pad beyond its capacity
Frequent printhead cleaning cycles use more waste ink than normal printing and fill the absorber faster
Using third-party or refilled cartridges can cause additional printhead cleaning cycles, filling the absorber sooner
The printer ran many long cleaning jobs due to repeated clogging issues, consuming absorber capacity quickly
The printer was reset without replacing the absorber, causing the counter to undercount actual usage

How to Fix It

Do not attempt to continue printing — doing so risks ink leaking inside the printer and causing additional damage. Turn the printer off.

Canon intentionally stops the printer at this point to protect against a messy ink overflow. Forcing the printer to continue is not safe.
Decide whether to service the printer or replace it. For budget printers under $100, replacement is often more cost-effective. For photo printers or higher-end models, servicing makes more sense.

Canon's ink absorber pads are not user-replaceable on most consumer models. They are located deep inside the printer chassis.
If you want a temporary solution, you can use Canon's Service Tool software to reset the ink absorber counter. This does not replace the physical pad — it only resets the counter. Search for 'Canon Service Tool' for your printer model.

Resetting the counter without replacing the pad means the pad is still full. It may leak eventually. Use this option only as a short-term fix while you arrange a proper repair.
Find a Canon authorized service center by visiting Canon's website and using their service locator. Bring the printer in for an official absorber replacement and counter reset.

Authorized service ensures the physical pad is replaced and the counter is reset correctly. This is the proper long-term solution.
If you are comfortable with DIY repairs, replacement absorber kits are available online for many Canon Pixma models. The kit includes replacement pads and instructions for disassembling the printer to swap them out.

DIY absorber replacement requires partial disassembly of the printer. It is not difficult on most Pixma models, but it does void any remaining warranty.

When to Call a Professional

Error 6502 almost always requires professional service or a DIY absorber reset. Canon authorized service centers can replace the absorber pad and reset the counter. The cost is typically $50 to $100, which may exceed the value of an older entry-level printer. For higher-end models, the repair is often worth it.

Frequently Asked Questions

Is the ink absorber full error a scam to make me buy a new printer?

No — the ink absorber is a real physical component that genuinely fills up over time. Every time the printer runs a cleaning cycle, it flushes ink through the printhead and into the absorber pad. Canon's safety counter is there to stop ink from leaking onto your desk or damaging the printer's circuit board.

How long does it take for the ink absorber to fill up?

For typical home users printing a few pages a week, the absorber may last 5 to 10 years. If you frequently run cleaning cycles or print heavily, it can fill in 2 to 3 years. Third-party cartridges that trigger more cleaning cycles also shorten absorber life.

After resetting the counter, is it safe to keep using the printer?

In the short term, yes — but there is a risk. The pad is physically full and could eventually overflow, especially if you run many cleaning cycles. Avoid running deep cleaning cycles and get the pad physically replaced as soon as you can.