Patent ID: 6183078
Filing Date: 2001-02-06
Classification: B41J

Abstract:
An inkjet printing device comprising:a scanning carriage having a scan direction; anda print cartridge mounted on the scanning carriage, the print cartridge comprising:a housing having an internal ink chamber in fluid communication with an internal ink conduit;a substrate having a plurality of outer edges, a front surface and a back surface, said substrate being mounted on said housing and including a plurality of individual ink ejection chambers defined by a barrier layer formed on the front surface of said substrate and having an ink ejection element in each of said ink ejection chambers, said ink ejection chambers forming a straight linear array substantially along a length of the substrate, each ink ejection chamber having an ink inlet channel of a same length, said back surface having a portion across which ink flows;an ink channel fluidically connecting said internal ink conduit with said ink inlet channels; anda plurality of ink orifices aligned with said ink ejection chambers, wherein the print cartridge is mounted on the scanning carriage at a fixed angular position such that the straight linear array of ink ejection chambers is not perpendicular to the scan direction of the carriage.