Inkjet printer assembly with a central processing unit configured to determine a performance characteristic of a print cartridge
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United States of America Patent
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Sep 13, 2011
Grant Date -
Aug 14, 2008
app pub date -
Apr 16, 2008
filing date -
Jan 21, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is an inkjet printer assembly having a cartridge with an integrated pagewidth printhead integrated circuit (IC), and a cradle configured to receive the cartridge such that the printhead IC is adjacent a media feed path. Also included is a driven mechanism configured to maintain the printhead and to feed print media through the media feed path, and a central processing unit (CPU) configured to control operation of the IC to determine a performance characteristic of the cartridge to control operation of the driven mechanism and printhead IC in response to the determined performance characteristic of the cartridge. The assembly also includes a dynamic random access memory (DRAM) subsystem configured to store print data and to arbitrate requests received from the CPU, and a print engine pipeline (PEP) subsystem configured to accept compressed pages from the DRAM subsystem and to render said pages to bi-level dots for printing by the IC.
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