摘要:
A recycle document feeder according to the present invention includes a cover (251) covering a document discharge portion (30). The cover (251) is openably supported by a pivot shaft (256) between a pair of frames (255). A feed-back path (32) for guiding a document original onto a document placing plate is defined by a pair of guide members (257, 258) provided in an opposed relation. The upper guide member (258) is attached to the interior face of the cover (251). A switch claw (253) for switching the document traveling direction is attached to the pivot shaft (256) which supports the cover (251). Thus, there is no need for additionally providing a shaft for supporting the switch claw (253), thereby simplifying the construction of the document discharge portion (30).
摘要:
An image forming apparatus transfers a toner image formed on a photoconductive member onto transfer paper by passing the photoconductive member consecutively beside a main charger, exposure unit, developer unit, pre-transfer charger, transfer charger, and charge remover. During image formation under conditions with temperature or humidity lower than a predetermined level, the pre-transfer charger is deactivated.
摘要:
A pickup cable for a stringed instrument can switch between the output of the direct vibrational sound of strings and the output of the sound from the stringed instrument body generated by the vibrations of the strings and can also simultaneously output both the sound components. The pickup cable for a stringed instrument includes an input terminal to be inserted in a jack of the stringed instrument; a microphone to collect and convert sound of an internal space of the stringed instrument into collected-sound electrical signals; and an output terminal to output the collected-sound electrical signals. The microphone is incorporated in the input terminal.
摘要:
The present invention provides a unidirectional condenser microphone unit that can suppress the occurrence of howling. In a unidirectional condenser microphone unit, a diaphragm 20 extended across a support ring 21 and a backplate 30 supported by an insulation cylinder 50 are arranged opposite each other via a spacer ring 40. A backside air chamber 31 is provided between the backplate 30 and the insulation cylinder 50. When the density of air is defined as ρ, sound velocity is defined as c, the effective vibration area of the diaphragm 20 is defined as S, and the volume of the backside air chamber 31 is defined as V, a stiffness s1 of the backside air chamber expressed by (ρ×c2×S2)/V is increased on the basis of the volume V of the backside air chamber to shift a resonance frequency of a unidirectional component contained in unidirectivity up to a frequency near a high-frequency reproduction limit.
摘要:
An automatic document feeder includes first and second registration rollers for abutting the leading end of an original conveyed along a conveying path against their contact positions. The first registration roller is included in a plurality of reversing rollers arranged apart from each other along an axis of a supporting shaft of each of the reversing rollers. The reversing roller turn over the original along a reversing path that bypasses a part of the conveying path. There is provided a reversal guiding member arranged so as to cover a region between the adjacent reversing rollers. The reversal guiding member has guide surfaces curved along the peripheral surfaces of the reversing rollers as viewed along the axis of the supporting shaft. The reversal of the original is guided along the reversing path by the guide surfaces.
摘要:
An automatic document feeder of a type having a document inverting mechanism beside a document sending-in path is disclosed which, when a document located at a document exposure position is to be inverted, operates a conveying belt mechanism in a predetermined direction to convey the document by a predetermined amount in a direction away from a document positioning member, then brings a document positioning member to a retreat position, and then operates the conveying belt mechanism in a direction opposite to the predetermined direction to convey the document to the document inverting mechanism.
摘要:
A recycle document feeder according to the present invention includes a pair of document width regulating guides (9a, 9b) for guiding opposite edges of document originals (D) fed back onto a document placing plate (8) for alignment thereof with respect to the width thereof. With this construction, if the document width regulating guides (9a, 9b) each had a small length (A) as measured along a document transportation direction, the document originals (D) fed back onto the document placing plate (8) could not properly be aligned by the document width regulating guides (9a, 9b) thereby to be randomly stacked on the skew with respect to the document transportation direction. In view of this, the document width regulating guides (9a, 9b) are constructed so as to guide the document originals fed back onto the document placing plate (8) from a document discharge portion (30) over a distance equivalent to or greater than 60% of the length of a smallest document original (as measured along the transportation direction) which is to be possibly transported by the recycle document feeder.
摘要:
In an automatic document feeder, an original tray has an original platen on its upper surface. Originals put on the original platen are fed along a conveying path by conveying rollers and conveyance auxiliary rollers. The originals fed are separated one at a time by separating belts and separating rollers which are arranged above and below a conveying path. When a conveyance guide plate constituting a part of the original platen is removed upward, the separating rollers, the conveying rollers, and the conveyance auxiliary rollers and a portion for supporting the rollers are exposed upward, so that maintenance such as replacement of components such as the separating rollers, the conveying rollers and the conveyance auxiliary rollers can be performed.