1.Open the top lid of the printer in order to get into the printer's cartridges and the print head. When you open the top lid, the cartridges slot will automatically lift up to the middle front of the printer.
If there aren't any cartridges or print head in the printer, then the positioning of the cartridge slots will obviously be in the center front of the printer with the lever lifted up.
Install the print head in to the sliding rail just beside the capsules slot.