As with most Epson R-series printers it seems the RX620 has the trapdoor to allow simple access to the waste ink tube.

The picture (left) shows the tube you need to locate although normally the open end will be located under a small wedge of sponge in the channel leading to the main waste pads.

The next picture (left) shows a close up of the insides of the printer and shows the channel (center of image).

IMPORTANT: DO NOT pull hard on the tubing that leads from the front of the printer. You can potentially pull the other end of the tube off the pump assembly and if this happens you are going to have a nightmare re-attaching it. Care and patience is vital!

Unlike other models (such as the RX425 or R1800) you don't need to worry about undoing any butterfly clips or snipping the tube.. Just be careful not to pull the tube out too far.

In all other respects treat this printer as you would the R300 printer