epson eco tank ef 7700 series printer.

[zip007py]

Anyone have you got a simple easy installation maual on how to remove and reolace with a new ink waste pump unit,mine seems clog up at pump.replacement only £20.

 

[Hogwild]

Mm...I'm pretty sure Epson doesn't make an EF-7700, but they do make an ET-7700.

This company lists a service manual and parts manual for the ET-7700.
https://www.sdott-parts.com/epson-l7180-l7188-et-7750-service-manual.html
https://www.sdott-parts.com/printer-spare-parts/epson/epson-l7180-et-7750-parts-manual.html

Also, it appears you listed this post under the HP section, so maybe not the best place for it.