Like all inkjet printers, the printheads can clog on the HP Smart Tank 7602. Thankfully, this printer has many built-in maintenance features, including Print Quality Diagnostic Report, Clean Page Smears, Align Printheads, and Clean Printheads.

Due to its high page yield, you only have to refill the ink tanks periodically. The tanks are easy to fill and light up to indicate which tank is low and requires filling. The ink bottles don’t come with keyed nozzle shapes. The printheads are user-replaceable. However, they can be difficult to purchase. HP recommends contacting a certified service center to replace the printheads.

You will only have to refill the paper tray occasionally, as this printer holds up to 250 pages. There’s good paper jam access from multiple places in this printer, including the back and the maintenance bay, and by removing the input tray, output tray, and duplexer plate.

See the user manual here. This is different from the basic setup manual included in the box. Both manuals often refer to the support website for additional information.