Patent ID: 6141119
Filing Date: 2000-10-31
Classification: H05K

Abstract:
An imaging cartridge for a computer system, which is installed in the computer to facilitate a continuous document conveying process without any removable solid document cassette and additional document positioning process, comprising:a cartridge housing, which has a top surface, a bottom surface, and four lateral sides to form a square box with substantial inner space for accommodating required imaging components;a document feeding unit, which is a roller-type feeding device installed at one side of the cartridge housing, for carrying out continuous document conveying in and out operation of the imaging cartridge;a driving unit, located inside the cartridge housing for driving the document feeding unit; anda scanning unit, located inside the cartridge housing with a distance to the document feeding unit, for converting the imaging data into electrical signals;wherein said the document feeding unit further comprises:a feeding roller, which is an extended-length roller with the center line parallel to said lateral side of said cartridge housing, and is driven by said driving unit and feeding the document by its rotation;an outer leading plate, which is an extended-length plate with its longitudinal center line lying parallel to said lateral side and with a U-shaped cross-section, wherein the opening end of the U-shaped cross-section faces outwards of said imaging cartridge with the upper and lower edges thereof as the document entrance and outlet, respectively, of said imaging cartridge, the valley end of the U-shaped cross-section is light penetrable, and the feeding roller is located inside the cavity of the U-shaped cross-section with a clearance from the outer leading plate for conveying document in between; andan inner leading plate, located inside the outer leading plate with a clearance larger than the minimum clearance between the outer leading plate and the feeding roller.