In some firmware revisions of the MG2540s, a full factory reset can be triggered using only the buttons. This method is less reliable but worth trying if you cannot find the service tool.
The ink absorber full error on the Canon Mg2540s can occur due to several reasons, including: Canon Mg2540s Ink Absorber --39-LINK--39- Full Reset
Disclaimer: This procedure resets safety counters. Canon does not officially support end-user resets. If your printer is under warranty, contact Canon first. Proceed at your own risk. In some firmware revisions of the MG2540s, a
For a long-term fix:
: Resetting the counter does not physically clean the waste ink pads. Over time, failing to replace or clean the pads can lead to ink leaking from the bottom of the printer. Canon Mg2540s Ink Absorber --39-LINK--39- Full Reset