Device and method for scanning in a multifunctional machine
AssigneeSamsung Electronics Co., Ltd.
InventorYoung-Jung Yun
Life of this patent
Estimating the term…
Abstract
Disclosed is a scanning method and apparatus for scanning documents in a multifunctional machine. A scanning sensor module moves along the main scanning axis of the apparatus in either a first direction or a second direction opposite the first direction along the same scan line. The scanning sensor module moves to any line in a sub scanning direction and scans the line. Then, the scanning sensor module moves to a second position and re-scans the line. Since the scanning along the main scanning axis is performed at least twice, the total amount of data collected is increased, thus increasing the resolution of the image that is recorded along the main scanning axis.
Claims20
A method of scanning a document in a multifunctional machine having a scanning sensor module, said method comprising the steps of:
- scanning a line to record a first line of image data in a pixel format from said document, while moving said scanning sensor module in a first direction along a main scanning axis;
- re-scanning said line in a second direction, opposite from said first direction, to record a second line of image data;
- said first line of image data being offset from said second line of image data by a predetermined distance along said main scanning axis;
- and
- said multifunctional machine using both said first line of image data and said second line of image data to reduce image data loss and to enhance the resolution of the scanned document along the main scanning axis.
A scanning device comprising:
- means for moving a scanning sensor module along a sub scanning axis;
- means for moving said scanning sensor module along a main scanning axis;
- and
- an apparatus allowing a first line of image data and a second line of image data to be recorded, said second line offset from said first line by a predetermined distance along said main scanning axis, said apparatus comprising:
- a slide shaft for guiding movements of said scanning sensor module, said slide shaft rotatably mounted at first and second ends thereof to a frame portion of said scanning device;
- a rotary lever attached to a one of said ends of said slide shaft;
- a solenoid attached to said rotary lever for rotating said rotary lever to rotate said slide shaft;
- and
- said solenoid activating to offset said scanning sensor module by said predetermined distance, whereby said second line of image data is offset by said predetermined distance from said first line of image data.
A scanning device comprising:
- means for moving a scanning sensor module along a sub scanning axis;
- means for moving said scanning sensor module along a main scanning axis;
- and
- an apparatus allowing a first line of image data and a second line of image data to be recorded, said second line offset from said first line by a predetermined distance along said main scanning axis, said apparatus comprising:
- a slide shaft for guiding movements of said scanning sensor module, said slide shaft rotatably mounted at first and second ends thereof to a frame portion of said scanning device;
- a rotary lever attached to a one of said ends of said slide shaft;
- an eccentric cam contacting said rotary lever to rotate said rotary lever in an oscillatory manner;
- a motor driving said eccentric cam;
- and
- said motor driving said eccentric cam to offset said scanning sensor module from said first line by said predetermined distance, whereby said second line of image data is offset by said predetermined distance from said first line of image data.
Dependencies are inferred from the claim text.