Print engine/controller and printhead interface chip...

Details Print engine/controller and printhead interface chip... Print engine/controller and printhead interface chip...

2008-05-06

2008-05-06

Poon, King Y. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S002100, C358S003060, C358S534000, C358S535000, C358S536000, C358S539000, C358S001150, C382S244000, C382S172000

Reexamination Certificate

active

07369270

ABSTRACT:
A print engine/controller suited to use with a drop on demand print head. The print engine/controller works with compressed page data having both JPEG contone image layers and a bi-level image plane compressed using a Group 4 facsimile protocol. It receives compressed image plane's and effects expansion and printing in a pipeline fashion. It consists of a high speed serial interface (27) (such as a standard IEEE 1394 interface), a standard JPEG decoder (28), a standard Group 4 Fax decoder (39), a halftoner/compositor unit (29), a tag encoder (30) by which to place infrared tags into a printed page, a line loader/formatter unit31feeding an interface32to the print head (33). The decoders (28, 39) and encoder (30) are buffered to the halftoner/compositor (29).

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patent: WO 01/89838 (2001-11-01), None
patent: WO 01/89850 (2001-11-01), None

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