摘要:
A both-face automatic original feeding apparatus wherein a plurality of originals having images on their first and second surfaces are successively supplied from an original stacking portion to a predetermined position for reading an original, and each original is reversely rotated through a switch-back path after the first surface of the original passes through the predetermined position, thereby supplying the original to the predetermined position again to direct the second surface of the original to the predetermined position. In such a feeding apparatus, there is provided an introduction path for directing the original supplied from the original stacking portion to the predetermined position; a first discharge path for directing the original to the switch-back path after the original passes through the predetermined position; a surface reverse path for directing the original from the switch-back path to the predetermined position after reversing a first surface and a rear surface of the original; and a controller for controlling the apparatus in such a manner that a preceding original is switched back to convey it in the surface reverse path while a succeeding original is being passed through the predetermined position, and, when a trailing end of the succeeding original leaves the predetermined position, a tip end of the preceding original reaches the predetermined position.
摘要:
A document reading device for applying light to a document placed on platen glass so as to read an image formed on the document. The device is provided with a light-screen. The width of the light-screen can be changed according to the document size in such a way that it is also possible to change the amount of light which can pass through the light-screen from a light source to be applied to the platen glass. With this arrangement, a local temperature increase in the platen glass can be inhibited during sequential document-reading.
摘要:
The present invention relates to a glass fiber-reinforced polycarbonate resin composition comprising: (A) 70 to 92% by weight of an aromatic polycarbonate resin; (B) 1 to 20% by weight of an aromatic polycarbonate oligomer; (C) 3 to 20% by weight of a glass fiber comprising a short glass fiber having a fiber length of not more than 140 .mu.m and a long glass fiber having a fiber length of more than 140 .mu.m; and (D) 0.5 to 15% by weight of a composite rubber-based graft copolymer, halogen content in said resin composition being not more than 0.5% by weight based on total weight of said resin composition.
摘要:
An electrophotographic apparatus wherein a blank is formed at an end of a transfer material to make it easier to separate the transfer material from a photosensitive member and to prevent the transfer material from wrapping around an image fixing roller. A light reflecting portion is formed at a position corresponding to a leading edge of an original on an original supporting platen. The light reflecting portion receives light from an original illuminating lamp and reflects it to the region of the photosensitive member that has been opposed to a charger when the charge is switched from its non-operative state to an operative state.
摘要:
The present invention relates to aromatic polycarbonate resin pellets for light guide plate, which pellets contain dusts having a particle size of 0.5 to 1.0 μm in an amount of not more than 50,000 particles/g, and dusts having a particle size of more than 1.0 μm in an amount of not more than 3,000 particles/g, and a light guide plate comprising the aromatic polycarbonate resin pellets which contains dusts having a particle size of 0.5 to 1.0 μm in an amount of not more than 50,000 particles/g, and dusts having a particle size of more than 1.0 μm in an amount of not more than 3,000 particles/g.
摘要:
An image forming apparatus comprising a first body and a second body which are openable or separable from each other. The apparatus contains a plurality of developing devices, each of which is movable between its developing position for developing a latent image on an image bearing member of the image forming apparatus and a retracted position where the developing device is retracted from the developing position. At least the developing device that is located at its developing position when the apparatus is closed, is moved away from the image bearing member in response to an operation for opening the second body relative to the first body.
摘要:
The present invention provides an automatic original feed apparatus comprising an original stacking portion on which a plurality of originals can be rested, an introduction path for directing the original supplied from the original stacking portion to a reading portion, an annular reverse rotation path for reversely rotating the original discharged from the reading position and for directing the original to the reading position again, a discharge path for discharging the original discharged from the reading position onto a discharge portion, and original feed rotary members arranged in the introduction path, reverse rotation path and discharge path, respectively, and rotated in one direction.
摘要:
The present invention provides a sheet post-treatment apparatus in which a tab sheet is used to sort sheet materials, comprising a tab trimmer for successively cutting each of plural tab forming sheet materials being supplied, to form tabs in the sheet materials at offset tab positions. The tab trimmer is in modular form which can be removed from the apparatus and replaced with another modular tab trimmer.
摘要:
The present invention relates to an image forming apparatus in which a sheet cassette for containing sheets is removably mounted to a body of the apparatus. The image forming apparatus comprises a frame structure having a pair of legs spaced apart from each other, a bottom plate arranged on the legs, a first side plate arranged at one ends of the legs and uprightly mounted on the bottom plate, a second side plate arranged in confronting relation to the first side plate at the other ends of the legs and having a lower end portion extending below the legs and covering the other ends of the legs, and stay members for interconnecting the first and second side plates at their upper portions.
摘要:
In an image reading apparatus for reading an original image using a light source containing a plurality of color components, a control pulse for dimming the light source is generated by pulse-width modulation symmetrically with respect to a reference timing (for example, the central position in one storage time or the storage start timing) in one predetermined storage time of a line sensor.