There are 2 small pads under the rest position of the cartridges - these can easily be removed and washed out in warm water. BUT this is only a
Canon Knowledge Base - Replace the ink tank(s) - iP4600
Canon Knowledge Base - Install the print head and ink tanks
Canon Knowledge Base - Replace the ink tank(s) - iP4600
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Canon IP 4600 - How To Clean Printhead
Ink absorber full FIX! RESET Canon IP1800-1980!
Canon : Inkjet Manuals : TR4600 series : Removing Jammed Paper
How To Clean Canon Printer Ink Absorbers
Ink absorber full FIX! RESET Canon IP1800-1980!
CISS for Canon Pixma iP3600 / iP4600 / iP4700: Installation Guide
Canon Printer Repair - iFixit
CISS for Canon Pixma iP3600 / iP4600 / iP4700: Installation Guide
SOLVED: How do I clean the ink absorber pads - Canon Printer - iFixit
