Inkjet printer with cartridge connected to platen and printhead assembly

1. An inkjet printer comprising

a print medium cartridge storing a print medium roll that comprises a former carrying a wound length of a print medium;

a platen operatively arranged with respect to the print medium cartridge to support the print medium during feeding from the roll;

an inkjet printhead assembly arranged in register with the platen and comprising an inkjet printhead having a plurality of micro-electromechanical inkjet nozzles which can print onto the print medium supported by the platen;

a print medium feed arrangement which is arranged to feed the print medium from the roll and between the platen and the inkjet printhead assembly; and

an ink feeder defining an elongate channel and a plurality of passages each arranged to feed a respective type of ink and which each extend from the elongate channel, wherein

a pair of caps are provided on either side of the inkjet printhead each between the inkjet printhead and the ink feeder.

2. An inkjet printer as claimed in claim 1 , wherein the inkjet nozzles are arranged to form a plurality of sets and the inkjet printhead is mounted within the elongate channel so that each set is in fluid communication with a respective passage.

3. An inkjet printer as claimed in claim 2 , further comprising a filter arranged to filter ink provided to the passages.

4. An inkjet printer as claimed in claim 3 , further comprising an ink supply arranged to supply ink to the ink feeder via the filter, the ink supply comprising a plurality of baffles for regulating ink flow.

5. An inkjet printer as claimed in claim 1 , further comprising a severing mechanism operatively arranged with respect to the platen to sever a printed portion of the print medium from the remaining print medium carried by the roll.

6. An inkjet printer as claimed in claim 5 , wherein the severing mechanism comprises a blade and a motorized blade transporter for transporting the blade across the print medium.