An image forming apparatus is provided to facilitate the assembly and disassembly of a print head by delivering power source and signals from a head installation unit to a print head. An image forming apparatus(100) comprises: a main body(101); a print head(140) including a nozzle unit; a head installation unit formed on the main body for the installation of the print head; one or more first connectors formed on the head installation unit; and one or more second connectors formed on the print head. The length of the nozzle unit is the minimum width of the print media or greater. The second connector corresponds to the first connector. The first connector and the second connector are connected to each other by installing the print head at the head installation unit.
