There are two options for dealing with the waste ink error (Service required) on the PX/TX and Artisan 700 to 800 series of printers.
- Install an external waste ink kit
- Remove and replace the waste ink pads
The video resources linked/shown below demonstrate both of these approaches.
You should choose ONE option. Either fit a waste ink kit OR replace the pads. NOT Both!
The first video shows you how to remove the waste pad holder safely and is common to both approaches.
Releasing the waste ink pad holder
Installing An External Waste Ink Kit:
Replacing The Waste Ink Pads
(This is not necessary if you are fitting an external waste ink kit)