摘要:
A sheet-by-sheet paper feeding structure includes a sheets separating plate and a pressure plate. When a pile of paper is fed into the paper feeding structure, a front end of the pile urges against the sheets separating plate, which is in turn pressed by a press leg of the press plate above so that the sheets of paper are checked from displacing forwardly. The press plate further includes elastic plates having elastic plate press legs that help keep the sheets of paper flat and stable during feeding. A lowermost sheet of the pile is in direct contact with a roller of a facsimile machine or printer or the like. When the roller rolls forwardly, it will only bring the lowermost sheet to advance forwardly while the rest of the pile is being checked by the sheets separating plate.
摘要:
An automatic paper feed apparatus includes a sheet stacking device for stacking and storing a plurality of sheets, a rotary paper feed device brought into contact with the sheet to feed it, a biasing device for biasing the sheets stacked toward the rotary paper feed device, a separator having an inclined surface for bringing the sheet fed into contact with the inclined surface to separate only one sheet and supply the separated one sheet to the downstream side, and a maintaining device, brought into contact with the uppermost surface for maintaining the uppermost sheet at a position corresponding to the inclined surface against a biasing force of the biasing device.
摘要:
A system and method for feeding paper into an image forming device which allows sheets of paper to be manually fed without becoming jammed. The paper feeding cassette uses one or more corner separators which hold down the corner(s) of the paper in the cassette while a feed roller rotates. The rotation of the feed roller in combination with the corner separators causes one sheet of paper to be removed from the paper cassette. During a manual feed operation in which a user manually feeds a single sheet of paper, a guide plate deflects the manually fed sheet of paper above the corner separators, thus preventing the sheet of paper from becoming jammed under the corner separators.
摘要:
An article release assembly mounted on the from or exit end of an article supply magazine. The article release assembly is for use in feeding successive thick or heavy rigid articles from an article supply magazine. The article release assembly cooperates with an article transfer assembly and comprises an upper magazine clip assembly and a lower magazine clip assembly which cooperate to shift upward the next-out article from the article stack in the magazine. The upper clip assembly has an elongated body with an upwardly extending retention slot having specified dimensions. The lower clip assembly has an elongated body with an upwardly extending terminal end having a rounded portion. The retention slot of the upper clip assembly and the rounded portions of the lower clip assembly cause the first or next-out article to be repositioned with respect to the article stack as the article transfer assembly transfers successive articles from the article stack in the magazine.
摘要:
A sheet feeding apparatus includes a sheet supporting device for supporting sheets, a supply device for feeding the sheets supported by the sheet supporting device in a sheet feeding direction, a separating claw device for separating, one-by-one, the sheets fed by the supply device by regulating at least one front corner of the sheets relative to the sheet feeding direction. A switching device selectively switches positions of the separating claw device between a first position where the separating claw device is separated from the sheet supporting device and a second position where the separating claw device is adjacent to the sheet supporting device. A separation device separates, one-by-one, the sheets fed by the supply device in a condition that the separating claw device is in the second position.
摘要:
Sheets such as photographic films are fed one by one by suction cups in an image recording system. A resilient sheet separator is brought into abutment against an uppermost one of stacked sheets, and then the suction cups are moved toward the uppermost sheet. Before the suction cups reach the uppermost sheet, they are activated to attract the uppermost sheet under suction. The sheet separator pushes the uppermost sheet in one direction and the suction cups draw the uppermost sheet in the opposite direction, so that the attracted uppermost sheet is greatly flexed fully out of contact with the next sheet of the sheet stack. Thereafter, the suction cups and the sheet separator are displaced away from the sheet stack, separating the uppermost sheet from the sheet stack. A detecting arrangement detects whether the suction cup attracts a single sheet. The detecting arrangement includes a detecting rod for abutting against the uppermost sheet attracted by the suction cup, and a sensor energizable by the detecting rod.
摘要:
A document sheet handler/copy sheet feeder employing a vacuum belt feeder having an air knife to aid in sheet separation. The quantity of air discharged from the air knife is varied in accordance with the weight or pressure of sheets placed in the document sheet handler/copy sheet feeder and actuating a valve having four flow settings: Off, Low, Medium, and High. The valve includes two concentrically arranged and individually rotatable cylindrical valve elements having various sized openings formed thereon. Selective rotation of the valve elements align various combination of the openings to provide the four flow settings.
摘要:
A paper sheet attracting system includes a suction air casing, a paper sheet attracting unit which has a bottom wall provided with a plurality of air intake openings, and a pressure roller for depressing the paper sheets to be supplied. The leading edge of a paper sheet attracted by the paper sheet attracting unit is caught by a paper sheet feeding member for transferring the paper sheet. When the paper sheet feeding member is enabled, the pressure roller is driven to shift upward so that the pressure roller is separated from the paper sheets. Furthermore, when the paper sheet feeding member is enabled, the suction operation conducted by the paper sheet attracting unit is interrupted, whereby the paper sheet is transferred without disturbance.
摘要:
A stack of sheets such as documents to be fed one by one from the lowermost sheet is clamped between a lower feeding roller rotated in a given direction and an upper pressing roller whose shaft is loosely inserted in an elongated hole formed in a bearing secured to a rotatable arm. A coiled spring is connected between a free end of the arm and a fixed body of the apparatus to rotate the arm in such a manner that the pressing roller is urged against the stack of sheets with a large force due to the strong restoring force of the spring and the gravitational force of the pressing roller. A stopper plate is arranged in a rotational movement path of the arm at such a position that when a thickness of the stacked sheets has decreased to a given value, the rotation of the arm is inhibited by an engagement of the arm and stopper plate. After that engagement, only the pressing roller moves downward along the elongated hole and the pressing roller is urged against the stack of sheets with a small force due only to the gravitational force of the pressing roller.
摘要:
A two-stage sheet separating apparatus has a pair of corner separators and a top feed roller for initially separating a top sheet from a stack of sheets. A pair of retarding blades, one for each corner separator, are disposed downstream from the separators for finally separating the top sheet from any lower sheets which may have been carried along by inter-sheet frictional forces. The lower corners of the stack of sheets are supported by wedges in order to increase the beam strength of the sheets and thereby reduce the incidences where more than one sheet at a time is fed from the stack.