Canon Error Code 5B00 usually appears when either the ink absorber pad is full or the waste ink counter is full. This is a common issue among Pixma printers.
The waste ink counter is a part of the printer that keeps track of how much ink the printer has used. Every time you print something, the waste ink counter increments by a certain amount and when it reaches certain number, it triggers the Canon Error Code 5B00.
The waste ink counter is reset with a service tool. Without this tool, it’s not possible to reset the counter and clear the Canon Error Code 5B00.
The second possibility for Canon Error Code 5B00 is that the ink absorber pad is full. This is the pad that absorbs all the excess ink from the print head when it prints something. Over time it will get full and needs to be replaced.
In either case, you will need to take your printer to a service center to get it fixed.
To avoid Canon Error Code 5B00 in the future, it’s a good idea to clean the printer regularly and check that the waste ink counter isn’t too close to its limit. There are also replacement ink absorber pads available online if you want to replace the pad yourself.
Finally, it’s worth noting that this error code can happen if you try to take apart the printer to clean it or access its internal components. If you do so, make sure that you reassemble the components properly.
