Optical scanner
AssigneeUmax Data Systems Inc.
InventorsTing Shia, Yao-Wen Chang
Life of this patent
Estimating the term…
Abstract
An optical scanner includes a base, a driving means, a chassis, a document board and a top cover. The base has a circuit board for process image document, a slide bar and a rail. The chassis has a guiding bore movably housing the slide bar and a pulley running on the rail, and is driven by the driving means. The document board lays over the base and may hold a document thereon. The top cover is pivotally engaged with one end of the document board. All the components are modularly designed. User may easily assemble and disassemble the scanner by reference to an assembly guide.
Claims13
An optical scanner, comprising:
- a base having a circuit board socket, a scanning path and a plurality of fastening devices;
- a circuit board engaged with the circuit board socket;
- a chassis movable reciprocally along the scanning path for performing a scanning operation;
- a driving device engaged with the chassis for moving the chassis to perform the scanning operation;
- a document board engaged with the base through the fastening devices, and
- a top cover pivotally engaged with the document board, wherein the fastening devices include latch grooves and screw seats, the document board has latch lugs and screw bores engaged respectively with the latch grooves and screw seats to facilitate assembly and disassembly of the document board with the base, and wherein the base, circuit board, chassis, driving device, document board and top cover are modularly designed to facilitate assembly and disassembly of the optical scanner.
An optical scanner, comprising:
- a base having a circuit board socket, a scanning path and a plurality of fastening devices, the base further having a lower support arm which has a first semi-circular notch for holding a slide bar to allow the slide bar to be assembled or disassembled easily;
- a circuit board engaged with the circuit board socket;
- a chassis movable reciprocally along the scanning path for performing a scanning operation;
- a driving device engaged with the chassis for moving the chassis to perform the scanning operation;
- a document board engaged with the base through the fastening devices, the document board further has an upper support arm which has a second semi-circular notch mating with the lower support arm to hold the slide bar therebetween;
- and,
- a top cover pivotally engaged with the document board;
- wherein the base, circuit board, chassis, driving means, document board and top cover are modularly designed to facilitate assembly and disassembly of the optical scanner.
An assembly of optical scanner, comprising:
- a base having a circuit board socket, a scanning path and a plurality of fastening means;
- at least two chassis with different image scanning resolutions, each chassis being movable reciprocally along the scanning path for performing scanning operation;
- at least two circuit boards, each circuit board being engageable with the circuit board socket, each circuit board being capable to provide a resolution matching with one corresponding chassis;
- a driving means engaged with the chassis for moving the chassis to perform scanning operation;
- a document board engageable with the base through the fastening means, and
- a top cover pivotally engaged with the document board;
- whereby, by choosing a desired circuit board and one corresponding chassis from said chassis and circuit boards and having them assembled with the base, driving means, document board and top cover to form an optical scanner, image scanning resolution of the optical scanner can be chosen as desired.
Dependencies are inferred from the claim text.