Printhead assembly having a plurality of connected printhead modules

A printhead assembly comprising:

• a plurality of printhead modules releasably connected together via connecting members, each printhead module comprising:
• at least two printhead integrated circuits, each of which has nozzles formed therein for delivering printing fluid onto the surface of print media;
• a support member for supporting:
• the at least two printhead integrated circuits;
• and
• a supply of printing fluid provided to the at least two printhead integrated circuits;
• and
• an electrical connector for receiving electrical signals for the at least two printhead integrated circuits;
• a drive electronics part incorporating at least one controller which is connected to at least one of the at least two printhead integrated circuits via the electrical connector for controlling the printing operation of at least one of the at least two printhead integrated circuits;
• and
• a casing part for supporting the drive electronics part and the printhead modules,
• wherein the casing incorporates a clamping arrangement for removably clamping the printhead modules to the casing, the clamping arrangement being configured to allow movement of the printhead modules relative to the casing during operation of the printhead assembly.