Abstract: An ink supply device according to the present disclosure includes an attachment part and a drip tray. To the attachment part, an ink pack is attached. The drip tray is provided below the attachment part and has a capacity equal to or larger than a capacity of one ink pack.

Abstract: An opening/closing cover attachment structure couples an edge of an opening/closing cover to a cover attaching body in a turnable manner. The opening/closing cover attachment structure includes a first hinge, a second hinge and a holding part. The first hinge and the second hinge are disposed on the edge of the opening/closing cover via an interval. The holding part is disposed outside between the first hinge and the second hinge, and capable of holding the opening/closing cover in a closing state and releasing the holding. Hinge axes of the first hinge and the second hinge are sifted each other in a front-and-rear direction of the opening/closing cover, such that it becomes possible to reduce a level difference between contact end portions of the opening/closing cover in the closing state and the cover attaching body.

Abstract: A liquid leakage detection device includes a first absorption layer, a second absorption layer, and a pair of terminals. The first absorption layer absorbs liquid. The second absorption layer is stacked on the first absorption layer, and absorbs the liquid. The pair of terminals are in contact only with the second absorption layer.

Abstract: A conveyance device includes a locking mechanism for an access cover. The locking mechanism includes a cooperating lever and a locking shaft attached to the cooperating lever. The locking shaft is slidable in an axial direction thereof between a locking position where the locking shaft engages in a locking groove of the access cover and a second unlocking position located lateral o the locking groove. When in the second unlocking position, the locking shaft engages with an engaged portion provided at part of a housing or at a fixed frame attached to the housing to constrain the cooperating lever against downward movement of a distal end of the cooperating lever. The locking mechanism further includes an operating member coupled to the locking shaft and including a holding portion capable of being held from outside the housing.

Abstract: A conveyance device includes a locking mechanism for an access cover. The locking mechanism includes a cooperating lever and a locking shaft attached to the cooperating lever. The locking shaft is slidable in an axial direction thereof between a locking position where the locking shaft engages in a locking groove of the access cover and a second unlocking position located lateral o the locking groove. When in the second unlocking position, the locking shaft engages with an engaged portion provided at part of a housing or at a fixed frame attached to the housing to constrain the cooperating lever against downward movement of a distal end of the cooperating lever. The locking mechanism further includes an operating member coupled to the locking shaft and including a holding portion capable of being held from outside the housing.

Abstract: A liquid leakage detection device includes a first absorption layer, a second absorption layer, and a pair of terminals. The first absorption layer absorbs liquid. The second absorption layer is stacked on the first absorption layer, and absorbs the liquid. The pair of terminals are in contact only with the second absorption layer.

Abstract: An opening/closing cover attachment structure couples an edge of an opening/closing cover to a cover attaching body in a turnable manner. The opening/closing cover attachment structure includes a first hinge, a second hinge and a holding part. The first hinge and the second hinge are disposed on the edge of the opening/closing cover via an interval. The holding part is disposed outside between the first hinge and the second hinge, and capable of holding the opening/closing cover in a closing state and releasing the holding. Hinge axes of the first hinge and the second hinge are sifted each other in a front-and-rear direction of the opening/closing cover, such that it becomes possible to reduce a level difference between contact end portions of the opening/closing cover in the closing state and the cover attaching body.

Abstract: A unit casing (1) is mounted in a casing (120) included in an image forming apparatus (100). The unit casing (1) includes a main body (2) and a positioning section (3). The positioning section (3) positions the main body (2) relative to the casing (120). The main body (2) includes a first frame segment (21) and a second frame segment (22) located opposite to the first frame segment (21). The positioning section (3) includes a positioning frame segment (31) extending in parallel to the first frame segment (21) and at least one penetrating member (32) extending from the positioning frame segment (31) and penetrating through the first and second frame segments (21) and (22). The at least one penetrating member (32) has a tip end held by the casing (120).

Abstract: A unit casing (1) is mounted in a casing (120) included in an image forming apparatus (100). The unit casing (1) includes a main body (2) and a positioning section (3). The positioning section (3) positions the main body (2) relative to the casing (120). The main body (2) includes a first frame segment (21) and a second frame segment (22) located opposite to the first frame segment (21). The positioning section (3) includes a positioning frame segment (31) extending in parallel to the first frame segment (21) and at least one penetrating member (32) extending from the positioning frame segment (31) and penetrating through the first and second frame segments (21) and (22). The at least one penetrating member (32) has a tip end held by the casing (120).

Abstract: A sheet conveying device includes a discharging roller pair, a discharge sheet holding portion, and a stopper member. The discharging roller pair discharges the sheet member outside from a sheet discharge port by rotating in a forward rotational direction. The discharging roller pair includes a first conveying roller, and a roller member. The discharge sheet holding portion is for holding the sheet member discharged outside by the discharging roller pair. The stopper member is swingably supported on a rotational shaft of the first conveying roller. The stopper member allows the sheet member to be discharged to the discharge sheet holding portion when the discharging roller pair rotates in the forward rotational direction, and prevents the sheet member from intruding into the nip portion from the discharge sheet holding portion when the discharging roller pair rotates in the reverse rotational direction.

Abstract: An image forming apparatus includes a height determining member that performs the positioning of a holder in a height direction. When the holder is not mounted, the height determining member is assembled to a predetermined frame member to serve as a part of the predetermined frame member.

Abstract: An image forming apparatus includes a height determining member that performs the positioning of a holder in a height direction. When the holder is not mounted, the height determining member is assembled to a predetermined frame member to serve as a part of the predetermined frame member.

Abstract: Provided is a unit including a unit case, a positioning frame, and a pair of through shafts. The unit case includes a first frame disposed on a downstream side in a mounting direction, a second frame disposed on an upstream side in the mounting direction, and a pair of end frames. The positioning frame is disposed on an upstream side in the mounting direction with respect to the second frame and is positioned in a direction perpendicular to the mounting direction with respect to an image forming apparatus main body. The through shaft penetrates the first frame, the second frame, and the positioning frame. The through shaft is provided with a regulating pin that engages with the image forming apparatus main body so as to regulate movement of the unit case in an attachment/detachment direction.

Abstract: A sheet conveying device includes a discharging roller pair, a discharge sheet holding portion, and a stopper member. The discharging roller pair discharges the sheet member outside from a sheet discharge port by rotating in a forward rotational direction. The discharging roller pair includes a first conveying roller, and a roller member. The discharge sheet holding portion is for holding the sheet member discharged outside by the discharging roller pair. The stopper member is swingably supported on a rotational shaft of the first conveying roller. The stopper member allows the sheet member to be discharged to the discharge sheet holding portion when the discharging roller pair rotates in the forward rotational direction, and prevents the sheet member from intruding into the nip portion from the discharge sheet holding portion when the discharging roller pair rotates in the reverse rotational direction.

Abstract: Provided is a unit including a unit case, a positioning frame, and a pair of through shafts. The unit case includes a first frame disposed on a downstream side in a mounting direction, a second frame disposed on an upstream side in the mounting direction, and a pair of end frames. The positioning frame is disposed on an upstream side in the mounting direction with respect to the second frame and is positioned in a direction perpendicular to the mounting direction with respect to an image forming apparatus main body. The through shaft penetrates the first frame, the second frame, and the positioning frame. The through shaft is provided with a regulating pin that engages with the image forming apparatus main body so as to regulate movement of the unit case in an attachment/detachment direction.

Abstract: An image forming apparatus includes a casing, an image forming unit, a plurality of covers, a shutter, and a linkage mechanism. The image forming unit includes a light source and is disposed in an interior of the casing. The image forming unit forms an image on a recording medium. The covers are openable and closable relative to the casing. The shutter is openable and closable relative to the light source. The linkage mechanism links the respective covers to the shutter. The linkage mechanism sets the shutter in a closed state in a situation in which at least one of the covers is in an open state and sets the shutter in an open state in a situation in which all the covers are in a closed state.

Abstract: An image forming apparatus includes a casing, an image forming unit, a plurality of covers, a shutter, and a linkage mechanism. The image forming unit includes a light source and is disposed in an interior of the casing. The image forming unit forms an image on a recording medium. The covers are openable and closable relative to the casing. The shutter is openable and closable relative to the light source. The linkage mechanism links the respective covers to the shutter. The linkage mechanism sets the shutter in a closed state in a situation in which at least one of the covers is in an open state and sets the shutter in an open state in a situation in which all the covers are in a closed state.

Abstract: A key switch device includes a pressing type switch, an operating key, and a light emitting unit. The operating key includes a key top and a key base. The key top is exposed from an operating panel and is pressed by a user. The key base is assembled with the key top. The key base is positioned between a substrate and the operating panel to turn on the switch. In a place corresponding to the light emitting unit between the key top and the key base, a hollow part is formed.

Abstract: An image forming apparatus includes a bearing support portion that is provided in a cover member and supports a bearing member and a spring member and a bearing guide portion that is provided in an apparatus main body and has a guide groove that extends in a first direction and in which an outer peripheral portion of the bearing member is fitted when the cover member is in a close position. The bearing support portion has an opening portion extending in the first and second directions and a contact portion, and the bearing member has a convex portion that is formed on one side relative to an outer peripheral surface and is movable within the opening portion in the first and second directions and a regulation lug that is formed on the other side relative to the outer peripheral surface and, when the cover member is in an open position, can come in contact with the contact portion under a biasing force of the spring member.

Abstract: A sheet detection device includes a moving member and a support member. The moving member includes an interference part capable of interfering with a sheet that passes through a sheet transport path. The support member slidably supports the moving member. When a sheet passes through the sheet transport path in a forward direction, the sheet interferes with the interference part of the moving member in a protruding posture, and the moving member turns in a first direction along the forward direction in a state of maintaining the protruding posture. When a sheet once stopped on the sheet transport path is pulled out in a reverse direction with a predetermined pull-out force, the moving member turns in a second direction that is opposite to the first direction, and changes the posture from the protruding posture to a retreating posture against a biasing force of a first bias member.