A medium transport device includes a medium guide member, a driving source, a first movement member, a movement restricting member, and a second moving member. The medium guide member is movable between a first guide position, in which the medium guide member guides a medium toward a receiving member on which the medium is loaded, and a second guide position, in which the medium guide member guides the medium from the receiving member into the device. The driving source moves the medium guide member. The first movement member moves the medium guide member in accordance with an operation of the driving source. The movement restricting member is movable together with the medium guide member. The second moving member is movable between a first position, in which the second moving member is located close to the movement restricting member to restrict the medium guide member from moving from the second guide position to the first guide position, and a second position, in which the second moving member is spaced apart from the movement restricting member to allow the medium guide member to move to the first guide position. The second moving member moves from the first position to the second position when the medium guide member moves toward the first guide position in response to an operation of the driving source.

An image forming device including a gate mechanism reduces a noise generated when a sheet is conveyed. The image forming device includes a conveyance path and a gate. The conveyance path is branched into a plurality of paths, and the sheet is conveyed along a conveyance direction. The gate is provided at a position in the conveyance path at which the conveyance path is branched into the plurality of paths, and switches a path through which the sheet is conveyed. The image forming device rotates the gate in a direction in which a contact point of the gate, which faces a front surface of the sheet to be conveyed and is located at a position at which a trailing end of the sheet first comes into contact with the gate, and a front surface of the sheet to be conveyed face each other.

A sheet handling apparatus (e.g., banknote insertion/discharge mechanism 20) includes a transport unit (e.g., first transport unit 30) configured to transport a sheet (e.g., banknote) in a first transport path 30a; and driving units 36m and 38m configured to move, along the width direction of the first transport path 30a, at least portions of guiding members 36 and 38 forming edges of the first transport path 30a.

A medium feeding apparatus includes a mounting section on which a medium to be fed is mounted, a feeding roller configured to feed the medium mounted on the mounting section, a separation roller configured to nip and separate the medium with the feeding roller therebetween, and a regulation section disposed downstream of the nipping position between the feeding roller and the separation roller, the regulation section being configured to regulate the contact of the medium to be fed and the separation roller by coming into contact with the medium from the side of the separation roller.

A method is provided for producing an electrode stack with flat electrode elements, including: a) providing a first electrode element; b) inserting the first electrode element into an intermediate space formed by stacking fingers of a stacking wheel which rotates about a rotation axis; c) transporting the first electrode element with the stacking wheel; d) removing the first electrode element from the intermediate space; e) arranging the first electrode element in a stacking position; f) providing a second electrode element; g) inserting the second electrode element into a further intermediate space different from the intermediate space and formed by stacking fingers of the stacking wheel; h) removing the second electrode element from the further intermediate space; and i) arranging the second electrode element in the stacking position and producing the electrode stack. The first electrode element is moved to a lateral target position by a movable alignment element.

A fixing device includes a fixing member, a pressuring member, a separating claw separating a recording medium from the fixing member and a moving mechanism of the separating claw. The moving mechanism includes a biasing member, coaxial two input gears having different numbers of teeth, a bearing depression and a shaft protrusion. The two input gears rotate according to rotation the fixing or pressuring member while shifting by a difference of the numbers of teeth for each rotation. The bearing depression is depressed in one input gear, and has an inclined contact face. The shaft protrusion is protruded from the other input gear, and has an inclined distal end face contact with the contact face. The two input gears rotate to repeat coincidence of inclination directions of the contact face and the distal end face and shifting the inclination directions, and reciprocatingly move the separating claw.

A fixing device includes a fixing member, a pressuring member, a separating claw separating a recording medium from the fixing member and a moving mechanism of the separating claw. The moving mechanism includes a biasing member, coaxial two input gears having different numbers of teeth, a bearing depression and a shaft protrusion. The two input gears rotate according to rotation the fixing or pressuring member while shifting by a difference of the numbers of teeth for each rotation. The bearing depression is depressed in one input gear, and has an inclined contact face. The shaft protrusion is protruded from the other input gear, and has an inclined distal end face contact with the contact face. The two input gears rotate to repeat coincidence of inclination directions of the contact face and the distal end face and shifting the inclination directions, and reciprocatingly move the separating claw.

A post-processing device includes: a unit that performs post-processing; a guide unit that guides the unit to a position at which the unit performs the post-processing, and has a first guide portion extending in a width direction of a medium, a second guide portion that is disposed at an end portion of the first guide portion, is inclined with respect to the width direction of the medium, and guides the unit to a corner of the medium, a third guide portion that is disposed at the end portion of the first guide portion and branches off from the second guide portion to extend, and a fourth guide portion that connects the second guide portion to the third guide portion; and a branching unit that is disposed at a portion at which the second guide portion and the third guide portion branch off from each other, guides the unit from the first guide portion toward the second guide portion, and guides the unit from the third guide portion toward the first guide portion.

A sheet feeding device includes a stacking unit, a feeding unit, a rotating member, a separation unit, a holding unit, a swinging member, and a guiding unit. The stacking unit stacks sheets. The feeding unit feeds stacked sheets. The rotating member conveys sheets, and is on a feeding unit downstream side. The separation unit separates fed sheets one by one, and contacts the rotating member. The holding unit holds the feeding unit and rotating member, and is rotatable about a rotating member rotation shaft. The swinging members swingably disposed on the holding unit and the guiding unit on a swinging member lower side guides the sheets with contact. A first contact portion of the swinging member and the guiding unit is on a second contact portion upstream side, that is a rotating member/separation unit contact portion. A swinging member swinging shaft is on the first contact portion upstream side.

A medium processing device includes a plurality of crimping teeth and circuitry. The plurality of crimping teeth presses and deforms a position on a sheet bundle to bind the sheet bundle. The sheet bundle is a bundle of stacked sheet-shaped media. The plurality of crimping teeth flattens the position pressed and deformed to unbind the sheet bundle. The circuitry causes the plurality of crimping teeth to sandwich the position on the sheet bundle.