HP OfficeJet Pro 9120e Serie Guía De Referencia página 4

Printer hardware setup information
Load paper
Open the paper tray and slide out the guides. Load Letter or A4 paper and adjust the guides.
Close the tray. Pull open the output tray extender.
Install cartridges
Open the front door and then lift the cartridge access door by the scanner lid. Unpack cartridges.
Insert each cartridge securely into the indicated slot. Close both doors.
Note: Make sure to use the cartridges provided with the printer for setup.
4