Abstract:
In an image formation device, a driven gear is coupled to a far end portion in a unit inserting and withdrawing direction of a rotary fixing member or a rotary pressure member of a fixing unit. A driving gear is provided in a far end portion of a fixing unit housing part and engages with the driven gear when the fixing unit is housed in the fixing unit housing part. The driving gear and the driven gear are formed so that a transmission force transmitted from the driving gear to the driven gear in a mutual engagement position has a component so directed as to horizontally press the fixing unit against columns making a pair. The fixing unit as housed in the fixing unit housing part is pressed by the transmission force against the columns and positioned in a direction orthogonal to the unit inserting and withdrawing direction.
Abstract:
A fixing unit fixes the toner image on a sheet by causing the sheet carrying a toner image to pass through a nip portion formed by bringing a rotary fixing member and a rotary pressing member into pressure contact with each other. The image forming apparatus includes an image forming apparatus main body having a fixing unit accommodating portion for accommodating the fixing unit in an insertable and removable manner, and a heating unit provided in the image forming apparatus main body and heating a rotary fixing member of the fixing unit mounted on the fixing unit accommodating portion from outside in a radial direction. The direction in which the fixing unit is inserted into and removed from the fixing unit accommodating portion coincides with the axial direction of the rotary pressing member.
Abstract:
A toner conveying device includes a toner containing part, a conveying member, and a vibration mechanism. The toner containing part contains a toner. The conveying member rotates around a rotation axis so as to convey the toner in the toner containing part. The vibration mechanism vibrates the conveying member in directions of the rotation axis.
Abstract:
A sheet process device includes a supporting member and a process device main body. The supporting member is attached to the lateral face at a side of an in-body sheet ejection space of an image forming apparatus. The process device main body is supported by the supporting member. The process device main body includes a relay conveyance unit and a post process unit. The relay conveyance unit is arranged slidable in a direction to the in-body sheet ejection space. The post process unit is arranged slidable in upward and downward directions with respect to the supporting member. The process device main body provides a sheet conveying path extending from a sheet ejection port of the image forming apparatus to the post process unit through the relay conveyance unit, when the post process unit is moved upwardly after the relay conveyance unit is moved into the in-body sheet ejection space.
Abstract:
An image forming apparatus includes a movable unit, a support unit, a protruding portion, a guide portion, and a pressing portion. The movable unit includes a fixing member and a pressure member, and swings along a width direction of a sheet. The support unit supports the movable unit. The protruding portion is electrically conductive and is provided to protrude from a first unit of one of the movable unit and the support unit toward a second unit of the other. The guide portion is electrically conductive and is formed in the second unit so that the protruding portion can be inserted therein, and guides the protruding portion along the width direction. The pressing portion presses the movable unit in a pressing direction perpendicular to the width direction and along a horizontal plane.
Abstract:
A fixing unit includes a plurality of first engagement portions which respectively engage with a plurality of first to-be-engaged portions to restrict a movement of a heating unit in a third direction intersecting with a first direction and a second direction. A fixed unit includes a second engagement portion which engages with a second to-be-engaged portion to restrict a movement of the heating unit in the first direction. The fixing unit includes a movable unit, a supporting member, and a reciprocating mechanism. The supporting member supports the movable unit such that the movable unit is movable along the first direction. The reciprocating mechanism causes the movable unit to reciprocate. The reciprocating mechanism causes the movable unit to reciprocate once every time a plurality of sheets pass between a first rotation member and a second rotation member in the fixing unit.
Abstract:
The image forming apparatus transfers an image onto a surface of a sheet at a transfer position on a conveying path. A pair of conveying rollers convey the sheet to the transfer position. The image sensor reads the sheet upstream of the transfer position. The rotary body is disposed to face the image sensor with the conveying path interposed therebetween. The rotary body includes a background portion configured to face a reading surface of the image sensor when the rotary body is at a first rotational position, and a cleaning portion configured to come into contact with the reading surface of the image sensor when the rotary body is at a second rotational position.
Abstract:
A destaticizing device has a destaticizing member, a holding member, and a body portion. The destaticizing member has a plurality of destaticizing needless. The holding member holds the destaticizing member. The body portion has the holding member removably attached to it. The destaticizing member has attachment holes for attachment to the holding member. The holding member has a plurality of bosses inserted in the attachment holes respectively and an engaging portion in a snap-fit shape for attachment to the body portion. The body portion has an engaged portion with which the engaging portion is engaged.
Abstract:
An image forming device (1) has an image carrier (331), a transfer member (35), a holding member (81) which holds the transfer member, a pressing member (83) which changes a position between a first position and a second position to make the transfer member contact and separate from the image carrier, a first moving member (325) and a second moving member (10P1) which are movable, and a first interlocking mechanism (33T) and a second interlocking mechanism (10Q). The first interlocking mechanism and the second interlocking mechanism press the pressing member to change a position of the pressing member in conjunction with the first moving member and the second moving member. The pressing member includes a first pressed portion (83P1) which is pressed by the first interlocking mechanism, and a second pressed portion (83P2) which is pressed by the second interlocking mechanism.
Abstract:
A sheet feeder includes a sheet feeding cassette stored in a cassette storage part, a heater and flow regulating plates. A first gap is formed between the bottom plate of the sheet feeding cassette and a bottom portion of the cassette storage part, and having an air intake port. A second gap is formed between the side plate of the sheet feeding cassette and a side portion of the cassette storage part and has a vent port communicating with the first gap and the sheet storing part. The flow regulating plates are disposed in the first gap so as to form a duct together with the sheet feeding cassette and the cassette storage part. Air flow is generated such that air is supplied from the air intake port into the first gap, is heated, rises through the second gap from the vent port, and flows to the sheet storing part.