Simply close the tool and power off the printer using the hard switch. Wait 10 seconds, then power on normally. The error lights should be gone.

Canon printers utilize a waste ink absorber pad to catch ink expelled during cleaning cycles. To prevent overflow and potential damage to the printer's internal mechanics, the printer's firmware maintains a counter that estimates the saturation level of these pads. When this counter reaches a predefined threshold, the printer ceases operation and displays an error (commonly Error 5B00 or "Ink Absorber Full").

To use the software, the printer must first be placed in manually. Maintenance mode / Ink Waste absorber reset

Using unofficial service tools can sometimes "lock" the service mode permanently if the wrong version is used. If your printer becomes unresponsive, try unplugging it for 30 minutes to force a reset. BCH Technologies Are you getting a specific error code like 5B00, or is the service tool giving you a communication error

Clears the "ink absorber full" error (e.g., Error 5B00), allowing the printer to continue operating after the physical pads have been cleaned or replaced.

Typical use cases