Provided is a sheet stacking tray such that damage due to external force can be suppressed. The sheet stacking tray (30) is provided with a tray body (40), a first slide member (50), and a second slide member (60). When the first slide member and the second slide member are pulled out, the engagement between a first storage catch portion (44) of the tray body and a first latch portion (52) of the first slide member is released, and then the engagement between a second storage catch portion (54) of the first slide member and a second latch portion (62) of the second slide member is released.

An endless conveyer belt is stretched between drive and idle rollers. A carriage is arranged so as to reciprocate along the endless conveyer belt. A suction box is arranged between upper and lower belt portions of the endless conveyer belt and fixed to the carriage. A stopper plate is fixed to the carriage and extends across a conveyer surface and upward from the conveyer surface. A conveyance roller pair is arranged at the upstream end of the conveyer surface. A region of the conveyer surface from a stopper plate to the upstream end u forms a sheet accumulation area. A cover sheet covers a region upstream of the suction box in the sheet accumulation area. The cover sheet is subjected to tension in the longitudinal direction by a winding-type constant force plate spring and continually tensed spaced apart from the endless conveyer belt.

A medium supplying apparatus with a detachable rolled medium is provided. In the medium supplying apparatus, the rolled medium is fed to a far side of a setting-and-removing direction of the rolled medium. The medium supplying apparatus includes a plurality of guide members configured to guide the rolled medium when the rolled medium is set. The guide members include at least one contact member which at least partially contacts only a lower outer periphery of the rolled medium and at least one auxiliary member which does not contact the outer periphery of the rolled medium. The contact member and the auxiliary member are connected at a base via the same rotary shaft. The auxiliary member is shorter than the contact member in a medium feeding direction, and is disposed in parallel with the contact member.

During the operation of a delivery device, having a first and a second stack delivery, in a transport direction, in which a first braking device is provided in the transport path of sheets which are conveyed by a conveyor system along a transport path in the entry region of the first stack delivery, and in which a second braking device is provided in the input area of the second stack delivery, the sheets to be printed, which come into the first braking device come in a form- or friction-locking operative contact with an active surface of a holding means comprised by the braking device. The active surface coming into this operative contact with the sheet to be printed is moved forcibly by a drive in the transport direction. In a first operating mode, during a form- or friction-fit interaction between the sheet and the active surface, a speed for the movement of the active surface is reduced from a first speed to a comparatively lower stacking speed. The first braking device is operated in a second operating mode for a subsequently incoming sheet that is to be deposited on a stack of the second stack delivery. The active surface is moved, for at least the entire duration of the existing form- or friction-fit operating contact, with a speed between the respect sheet and the active surface. That speed corresponds approximately, i.e. with a deviation of 10%, to the conveying speed of the conveyor system.

A feeding mechanism comprises a base body, a feeding roller and a linkage assembly. The base body has a feeding channel. The feeding roller is disposed on the base body, and a part of the feeding roller is located in the feeding channel. The linkage assembly comprises a guiding component and a pressing component. The guiding component is pivotally coupled to the base body. Two ends of the pressing component are respectively and slidably disposed on the base body and the guiding component. The guiding component is rotatable relative to the base body so as to drive the pressing component to move along an extension direction of the feeding channel relative to the guiding component.

A feeding mechanism comprises a base body, a feeding roller and a linkage assembly. The base body has a feeding channel. The feeding roller is disposed on the base body, and a part of the feeding roller is located in the feeding channel. The linkage assembly comprises a guiding component and a pressing component. The guiding component is pivotally coupled to the base body. Two ends of the pressing component are respectively and slidably disposed on the base body and the guiding component. The guiding component is rotatable relative to the base body so as to drive the pressing component to move along an extension direction of the feeding channel relative to the guiding component.

A sheet conveying apparatus, including: a support portion configured to support a second sheet different from a first sheet among a plurality of sheets when the first sheet located undermost among the plurality of sheets conveyed by a conveyance portion is placeable on a placement portion; and a restriction unit configured to bring the second sheet into a first state in order to restrict downward movement of the second sheet at a restriction position located downstream of a support position at which the support portion supports the second sheet when the first sheet is placeable on the placement portion, and to bring the second sheet into a second state in order to remove or reduce a restriction force for restricting the downward movement of the second sheet to less than a restriction force in the first state after bringing the second sheet into the first state at the restriction position.

During the operation of a delivery device, having a first and a second stack delivery, in a transport direction, in which a first braking device is provided in the transport path of sheets which are conveyed by a conveyor system along a transport path in the entry region of the first stack delivery, and in which a second braking device is provided in the input area of the second stack delivery, the sheets to be printed, which come into the first braking device come in in a form- or friction-locking operative contact with an active surface of a holding means comprised by the braking device. The active surface coming into this operative contact with the sheet to be printed is moved forcibly by a drive in the transport direction. In a first operating mode, during a form- or friction-fit interaction between the sheet and the active surface, a speed for the movement of the active surface is reduced from a first speed to a comparatively lower stacking speed. The first braking device is operated in a second operating mode for a subsequently incoming sheet that is to be deposited on a stack of the second stack delivery. The active surface is moved, for at least the entire duration of the existing form- or friction-fit operating contact, with a speed between the respect sheet and the active surface. That speed corresponds approximately, i.e. with a deviation of 10%, to the conveying speed of the conveyor system.

An image forming apparatus includes a main casing including an image forming unit and a discharge tray, and an optional device configured to be removably attached to the main casing. The main casing includes a conveying path through which a sheet is conveyed from the image forming unit, a discharge path through which the sheet is conveyed toward one of the discharge tray and the optional device, the discharge path diverging from the conveying path, and a return path including a first path through which the sheet is conveyed temporarily out of the main casing via an opening formed in the main casing, and a second path through which the sheet is conveyed toward the image forming unit. The first path diverges from the conveying path. The second path diverges from the first path. The optional device is disposed closer to the discharge tray than the opening.

In one example in accordance with the present disclosure a media transport device is described. The device includes a number of drive rollers coupled to a frame. A number of media rollers are also coupled to the frame. The media rollers are in contact with, and rotated by, the number of drive rollers. Media rollers in a first set have a first diameter and media rollers in a second set have a second diameter that is different from the first diameter. The device also includes a number of pinch rollers coupled to the frame. The pinch rollers are in contact with the number of media rollers to form a number of nips through which media passes along a feed path.