Abstract: A roll paper handling device for use in various recording machines, such as facsimiles and copiers, which employ recording paper in the form of a roll is provided. The present device includes a box in which a roll of paper may be rotatably installed in position which may be moved between an operative position where a lead out paper portion unrolled from the roll may be fed to a desired location and an inoperative position where the roll of paper may be replaced and a locking mechanism which allows the box to be moved to the inoperative position only when said lead out paper portion has been completely pulled back into the box. The locking mechanism is also so structured so as to apply a back tension to the roll of paper thereby allowing to prevent the roll of paper from rotating exceedingly.

Abstract: In a image reading apparatus applicable to a facsimile machine, copying machine or the like which includes an original document transporting unit having therein an image reading point and a rigid base plate having thereon an optical element such as mirror or lens and a photoelectric conversion unit such as CCD to convert incident light information to an corresponding electrical signal, said transporting unit being supported to a rigid supporting member, said rigid plate being rotatably supported at its side end portion to an axis connected to said rigid supporting member, whereby a distance of an optical path from the reading point to the conversion unit is stably kept constant even though the housing of the apparatus is distorted.

Abstract: A driving device for driving document conveying members, recording paper conveying members and recording paper cutting members installed in a facsimile apparatus. The driving device includes first and second reversible motors. The first motor causes the document conveying members to convey a document when in a forward rotation and causes the paper cutting members to cut a recording paper when in a reverse rotation. The second motor causes the paper conveying members to convey the paper when in a forward rotation and to pull it back when in a reverse rotation.

Abstract: A recording paper feeding apparatus for use in a recording machine such as a facsimile machine includes a predetermined paper travelling path along which a recording head, a platen roller, a cutter and a paper discharging roller are disposed. In one form of the present invention, a first detector for detecting presence and absence of the recording paper is disposed upstream of the recording head and a second detector for detecting presence and absence of the recording paper is disposed downstream of the cutter. And, signal sound is produced when both of the detectors detect presence of the paper, indicating that the paper is properly loaded. In another form, a switch is provided and if at least one of the detectors is detecting absence of the paper when the switch is actuated, alarm sound is produced, indicating that the paper is not properly loaded.

Abstract: Characters, numerals and other symbols are formed with dots placed on a recording paper by a printing stylus thrust through a thin ink film formed in front of the recording paper.

Abstract: A sheet feed apparatus for use with facsimile apparatus comprising an original table for inserting original sheets manually, a recording sheet cassette for holding a stack of recording sheets therein, sheet feed roller means disposed so as to be capable of receiving both original sheets and recording sheets to transport them individually to a reading and printing station of the facsimile apparatus, and sheet feed means for automatically separating recording sheet individually from a stack of recording sheets in the cassette.

Abstract: Two sheet trays are provided, one of which is fixed in position and carries copy sheets and the other of which is movable and carries original documents for transmission. The movable sheet tray is slidable over the fixed sheet tray between a retracted position and a sheet feed position. The trays are rockable in such a manner that a feed roller engages with the fixed sheet tray when the movable sheet tray is in the retracted position and with the movable sheet tray when the movable sheet tray is in the sheet feed position to feed copy sheets or original documents respectively. Movement of the movable sheet tray by the apparatus operator to the selected one of the retracted position and the sheet feed position automatically sets a facsimile transmission system in which the apparatus is incorporated to a receive mode or a transit mode respectively. A sensor is provided to the movable sheet tray to sense for the presence of original documents therein and automatically terminate multiple document transmission.

Abstract: A sheet feed cassette includes a tray having a pair of corner claws which assume a raised position in the non-feed position of the tray and which move down from the raised position when the tray is placed in its feed position. A receptacle is provided for slidably supporting the sheet tray, and includes a guide member having formed therewith notches which are located opposite to the corner claws. The corner claws have projections which are guided by the guide member, thereby controlling the vertical movement of the corner claws in dependence upon the relative position between the projections and the guide member.

Abstract: A paper feeder is disclosed comprising a corner separator located on a paper tray on which a plurality of sheets are disposed in a stack and are fed one by one by means of a feed roller. The paper feeder is also provided with a second paper separator which operates, in the event of failure of paper separation by the corner separator to which results in a plurality of sheets being simultaneously fed from the paper tray, to separate the plurality of sheets into single sheets, thus assuring that the sheets are reliably fed into a sheet processing apparatus one by one. The second separator comprises an endless, sheet conveying belt which is disposed above a sheet passageway which connects the paper tray and the sheet processing apparatus, the belt cooperating with a frictional member which is disposed below the sheet passageway in opposing relationship with the sheet conveying belt.

Abstract: Improvements in a sheet feed device for a facsimile system for selectively supplying an original copy and a recording sheet to the rotating drum. A cassette adapted to be placed on a cassette table comprises two trays adapted to move relative to each other, one tray for supporting thereon a stack of original copies and the other tray for supporting thereon a stack of recording sheets. One of the two trays is selectively brought to a position in which it is disposed below a friction roller for picking up the uppermost sheet of the stack of original copies or recording sheets. Means is provided for lifting the two trays to bring the uppermost sheet into frictional engagement with the roller.