Primax Electronics Ltd.

Wen-An Huang

Chao-Min Yang

Wei-Hsun Hsu

Chung-Kai Wang

A paper inverting device includes a first sensor, a second sensor, a guiding structure, a power mechanism, and a controller. The power mechanism is used for driving rotation of the guiding structure. The first sensor is used for detecting the position of the paper. The second sensor is used for detecting the thickness of the paper. According to the sensing signals from the first sensor and the second sensor, the controller may determine the timing of rotating the guiding structure and the rotating direction and the rotating angle of the guiding structure. Consequently, the guiding structure may be controlled to stop the paper and further invert the paper.

Paper inverting device

A paper tray includes a first plate and an extension mechanism. The first plate includes a receiving space and a guiding groove. The extension mechanism includes a second plate, a paper stopper, and an elastic element. When the extension mechanism is moved to a first position in a direction opposite to the first plate and the paper stopper is rotated relative to the second plate in a first direction, the elastic element is pushed by an end of the paper stopper. Consequently, the elastic element generates an elastic potential energy. When the paper stopper is rotated relative to the second plate in a second direction, the elastic potential energy drives movement of the elastic element in a direction facing the first plate, so that the second plate is moved to a second position and the extension mechanism is automatically restored to the receiving space.

Paper tray

An automatic document feeder includes a sheet pick-up module and a floating shock-absorbing structure. The floating shock-absorbing structure is arranged at a feeding entrance. The sheet pick-up module includes a sheet pick-up roller and a sheet separation roller. When the sheet pick-up module is rotated to a sheet feeding position, the sheet pick-up roller is contacted with the floating shock-absorbing structure to feed the sheet into the internal portion of the automatic document feeder. By the floating shock-absorbing structure, the possibility of causing excessive shock and noise when the sheet pick-up arm strikes the feeding entrance will be minimized or eliminated.

Automatic document feeder

An automatic document feeder includes a feeder casing, a pressing structure, a guiding notch, plural first guiding ribs and plural second guiding ribs. The pressing structure is disposed on a bottom part of the feeder casing. The guiding notch is formed in the pressing structure. The first guiding ribs are arranged downstream of the guiding notch. The second guiding ribs are arranged beside the first guiding ribs. The height of the first guiding rib is smaller than the height of the second guiding rib. The lower first guiding ribs are used for guiding a thicker paper. The higher second guiding ribs are used for guiding a thinner paper.

A sheet stopping structure includes a sheet pick-up arm, a sheet guide casing and a sheet stopper. A receiving recess is formed in the sheet guide casing. Two sliding slots are respectively formed in two sidewalls of the receiving recess. The sheet stopper is installed in the receiving recess, and movable along the two sliding slots. When the sheet pick-up arm is in a standby position, the sheet stopper is maintained in an upright status and protruded outside the surface of the sheet guide casing. When the sheet pick-up arm is lowered to a sheet pick-up position, the sheet stopper is rotated and then stopped down within the receiving recess.

Sheet stopping structure

A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, a transfer channel, a plurality of transfer rollers, an ejecting tray, an ejecting roller assembly, a business card input tray, and a business card pick-up roller assembly. The business card input tray includes a business card support plate, a spring, a separation slice and a position-limiting glide slot. The business card pick-up roller assembly includes a business card pick-up roller, a business card separation roller and a shaft rod. The shaft rod is sheathed by the business card separation roller. The sheet-feeding scanning apparatus is adapted for scanning images of multiple ordinary documents or multiple business cards.

Sheet-feeding scanning apparatus having mechanism for feeding business card

A sheet-feeding type scanning apparatus and an automatic sheet feeding method are provided. The sheet-feeding type scanning apparatus includes a scanning module, a first sheet input tray, a first sheet pick-up roller assembly, a sheet ejecting tray, a sheet transfer channel, a plurality of transfer roller assemblies, a sheet ejecting roller assembly, a sheet-feeding sensor and a clutch module. Once a first sheet article of multiple sheet articles placed on the first sheet input tray are fed into the internal portion of the sheet-feeding type scanning apparatus to trigger the sheet-feeding sensor, the clutch module is disabled. At this moment, a second sheet article placed on the first sheet input tray fails to be fed by the first sheet pick-up roller assembly. Therefore, the double feeding problem is solved.

Sheet-feeding type scanning apparatus and automatic sheet feeding method

A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a transfer channel, a plurality of transfer rollers, a business card input tray, and a business card pick-up roller assembly. The business card input tray has a business card support plate. In a case that a jam event occurs, the business card support plate may be swung for facilitating removing the jammed business card.

A solenoid valve and an automatic document feeder using the solenoid valve are provided. The solenoid valve includes a valve body, a valve spindle, a spring, a ring-shaped groove and muffling ring. The ring-shaped groove is sheathed around the valve spindle. The muffling ring is disposed within the ring-shaped groove. When the valve body is magnetized to magnetically attract the valve spindle, the valve spindle is moved within the valve body, and the muffling ring collides with the recess inner wall, thereby reducing collision noise.

Solenoid valve device and automatic document feeder having such solenoid valve device

A sheet feeding apparatus includes a sheet releasing mechanism, a casing, a sheet feeding channel, a sheet pick-up module and a driving shaft. The sheet releasing mechanism includes a control lever and a base. The control lever includes a protruding part. The base includes a first restriction groove and a second restriction groove. When the protruding part is accommodated within the first restriction groove, the sheet releasing mechanism is in a sheet-holding status. When the protruding part is accommodated within the second restriction groove, the sheet releasing mechanism is in a sheet-releasing status.

Sheet feeding apparatus with sheet releasing mechanism

The present invention relates to a sheet-feeding scanning apparatus having a business card feeding mechanism. The sheet-feeding scanning apparatus is adapted for scanning an image of an ordinary document or a business card. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a first channel, a second channel, a transfer roller assembly, a business card input tray and a business card pick-up roller assembly. The business card feeding mechanism can provide a relatively flat feeding and scanning channel for the business card such that the bending degree of the business card during transportation is reduced.

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Taipei, Taiwan

Wen-An Huang