摘要:
The slit exposure optical system for a copying machine generally includes two mirror-carrying movable tables of which one is driven at half the speed of the other. Normally each table is driven from one and the same end which means that the other end of each table must follow. If such following is not precise, aberrations in the optical system result. The present invention provides means for interconnecting the nondriver ends of the tables in such a manner that the movement of the nondriver ends will precisely follow the movement of the driver ends and aberrations are thereby avoided.
摘要:
A document feeding apparatus having both an automatic and manual feed mode. the apparatus includes a paper feeding belt for feeding documents from a stack set on a document stacker, wherein the lowermost document in the stack is fed, and a stop roller placed in contact with an upper surface of the paper feeding belt to prevent the overlapped feed of documents. Documents are fed through a common paper path in both modes. The belt and roller are commonly used in both the automatic and manual document feed modes. In the automatic document feed mode, the belt is driven while the roller is held in a non-rotational state. In the manual document feed mode, the belt is driven and the roller is driven by the belt.
摘要:
In a sorting machine designed for use with a copying machine capable of handling paper of various sizes, a vertical array of sorting bins includes an uppermost sorting bin with an expandable surface area. This allows the sorting machine to handle extraordinarily large paper without increasing the footprint of the sorting machine. The uppermost position ensures that when expanded, the expandable sorting bin will stand over the copying machine, which does not normally need great overhead clearance. The expandable sorting bin may be expandable by virtue of a hinged, sliding or detachable extension plate, and may be expanded automatically when the copying machine detects and signals the use of larger paper. Multiple expandable sorting bins may be used for sorting the extra-large paper. In addition, the sorting machine may have one normal-sized sorting bin in alignment with a main receiving tray of the copying machine so as to allow the main tray to accommodate extra-large paper.
摘要:
A reproducing machine with a document feeding apparatus in which a document on a document stacker can be fed repeatedly after it is returned to the document stacker through a document feeding portion and a processing unit, and a feeding speed of the document can be varied by a control device. The feeding speed of the document when a single copy is required and the feeding speed of the document in a first cycle of copying when plural copies are required are set slower than that of the document in following cycles when plural copies are required in which the speed is set to a value as high as the processing power of the reproduction machine.
摘要:
A document feeding apparatus wherein a document is separated one by one and fed onto a platen glass and subjected to exposure the outside of the document to light, and thereafter the surface of the document is reversed by a reversible rotational mechanism and again moved onto the platen glass to expose the inside of the document.
摘要:
A document feeding apparatus wherein documents are fed one by one from a document stacker by a first document feeding device and a second document feeding device which is provided in the midway of a path from the first document feeding device to a processing unit, and the movement of the document is stopped temporarily by a document stopping device before the leading end of the document fed from the second document feeding device reaches a synchronous sensor provided in the midway of a path from the second document feeding device to the processing unit. The first document feeding device consists of a feeding belt connected to a drive source through an electromagnetic clutch, and a separating roller which is in sliding contact with an upper surface of the feeding belt in a non-rotary state. The second document feeding device consists of a drive roller connected to a drive source through an electromagnetic clutch, and a driven roller which is press contact with the drive roller.
摘要:
In an electrostatic image reproducing system, the developing unit or cleaning unit comprises a first magnetic brush having a first revolving element which revolves on a first revolving axis, and a plurality of magnets inside the first revolving element. The first revolving element is adjacent to an image recording body and confronts the image recording area of the image recording body. A second magnetic brush unit is axially adjacent to the first magnetic brush unit for attracting and transferring developer, the second magnetic brush unit including a second revolving element having a second revolving axis therein which is substantially colinear with the first revolving axis. The second magnetic brush unit does not confront the image recording area of the image recording body.
摘要:
An electrostatic image reproducing system includes a developing unit, a rotatable photosensitive drum, a cleaning unit, and a developer recovering device for recycling developer containing a magnetic ingredient from the cleaning unit to the developing unit.The developer recovering device includes a developer conveying device including a revolving element made of a non-magnetic material and having an outer surface, and a plurality of magnets arranged adjacent the inner surface of the circumference of the revolving element, and a casing encircling at least a portion of the outer surface of the revolving element with a given spacing therebetween for receiving developer containing the magnetic ingredient. The revolving element is arranged to pick up developer from the casing by the magnetic power of the magnets, and the picked up developer is conveyed to the developing unit by the revolving element as ears of developer on the revolving element.
摘要:
An electrophotographic copying apparatus has increased speed in recording sheet conveyance where the conveying path from the sheet feed cassette to the photosensitive member is relatively long. The sheet conveyance apparatus is constructed to equalize the line speed of the photosensitive member, the feed speed of the recording sheet and the conveying speed of the recording sheet. A plurality of sheets serially fed out from a sheet tray are concurrently transported along the sheet path. A sheet is fed out from the sheet tray in response to a timing reference signal generated in response to the scanning operation for a previously fed out sheet.
摘要:
A copy paper processing apparatus wherein a set of copy papers supplied sheet by sheet from the outside while overlaying them are selectively punched by a puncher and stapled by a stapler and punch pins of the puncher are pulled out after the stapling operation is ended.