Modular, duplexed printer with substantially identical printhead assemblies

A modular printer that comprises

• a housing having an upper and an lower covers and defining a print media inlet at one end between the covers and a print media outlet at an opposite end between the covers;
• an inlet roller assembly mounted proximate the print media inlet for feeding a web of print media into the housing;
• a pair of opposed inkjet printhead assemblies mounted downstream of the inlet roller assembly to define a printing zone between the printhead assemblies, the inlet roller assembly being configured to feed the web of print media between the printhead assemblies;
• an exit roller assembly mounted proximate the print media outlet to feed the web of print media from the outlet;
• and
• a print media conveying mechanism positioned downstream of the printhead assemblies to convey a leading edge of the web of print media from the inlet roller assembly to the exit roller assembly prior to operation of the printhead assemblies;
• wherein each inkjet printhead assembly includes a series of substantially identical printhead modules.