Cold pull has never been easier than on the Original Prusa MK4. Starting from firmware 6.0.0, the printer can do the process automatically.

The cold pull is one of the easiest solutions to a partially clogger nozzle, where some filament can still being extruded. If the nozzle is completely clogged, please check the clogged hotend article for MK4 -https://help.prusa3d.com/article/clog...

The MK4 provides high-speed 3D printing with ease and is ever so reliable like all Original Prusa 3D printers. It has all the best features of the popular MK3 – an open-source 3D printing workhorse with easy maintenance and advanced safety features – and adds much more!
Learn more about the MK4 - https://www.prusa3d.com/en/product/or...

The MK4 will consistently delivers the top print quality with a perfect smooth first layer thanks to the Loadcell sensor (no manual adjustments needed). The next-gen extruder (Nextruder) and 32-bit connected platform provide many quality-of-life improvements like remote printing, quick-swap nozzles, and customizable UI with a one-click printing option.