A component part for use in printing presses or paper- and substrate-processing machines, wherein the component part has at least one first region made of a first material with first physical properties, and wherein the at least one first region has a functional surface, which is in contact with a web- or sheet-shaped substrate and which is subject to wear. The component part provides a solution, by means of which the reaching of degrees of wear or also of wear limits can be easily determined without using aids. The component part is configured such that adjacent to and/or spaced apart from the at least one functional surface, at least one second region is at least partially enclosed by the first region.

A document conveyance device includes a sheet feeding tray, a conveyance mechanism, a discharge tray, a document pressing member and a supporting mechanism. The document pressing member comes into contact with an upper face of the document discharged from a conveyance path and presses the document downward. The supporting mechanism is configured to be provided in the sheet feeding tray, to support the document pressing member, to allow a shifting of the document pressing member according to an operation for shifting the document pressing member in a discharge direction of the document or an opposite direction to the discharge direction and to inhibit the shifting of the document pressing member against a force applied to the document pressing member by the discharged document.

A document conveyance device includes a sheet feeding tray, a conveyance mechanism, a discharge tray, a document pressing member and a supporting mechanism. The document pressing member comes into contact with an upper face of the document discharged from a conveyance path and presses the document downward. The supporting mechanism is configured to be provided in the sheet feeding tray, to support the document pressing member, to allow a shifting of the document pressing member according to an operation for shifting the document pressing member in a discharge direction of the document or an opposite direction to the discharge direction and to inhibit the shifting of the document pressing member against a force applied to the document pressing member by the discharged document.

A component part for use in printing presses or paper- and substrate-processing machines, wherein the component part has at least one first region made of a first material with first physical properties, and wherein the at least one first region has a functional surface, which is in contact with a web- or sheet-shaped substrate and which is subject to wear. The component part provides a solution, by means of which the reaching of degrees of wear or also of wear limits can be easily determined without using aids. The component part is configured such that adjacent to and/or spaced apart from the at least one functional surface, at least one second region is at least partially enclosed by the first region.

An image forming system includes: a transfer unit that transfers an image onto an object; a transporter that transports the object in the horizontal direction; a raising/lowering unit that raises and lowers the object in the vertical direction; and a processor configured to: after height adjustment performed by the raising/lowering unit, if the object has a top whose height is greater than a predetermined height when the object is to be transported to the transfer unit, stop the transport of the object to the transfer unit.

A sheet loader includes a housing and a fence. The housing has a bottom face. The fence is movable in a fence moving direction and configured to regulate a position of an end face of the sheet to be loaded in the housing. The fence includes a sliding face and a bend. The sliding face is configured to slide on the bottom face of the housing as the fence moves. The bend is disposed at an end of the sliding face in the fence moving direction and bent in a direction away from the bottom face of the housing.

A transport roller pair including: a first-side roller provided with a plurality of roller portions spaced apart in a rotation axial line direction; a fixing device; and an image forming device is provided. The first-side roller includes roller portions. The transport roller pair further includes a second-side roller including a plurality of contact areas and a plurality of non-contact areas as areas other than the plurality of contact areas. At least the contact areas are covered with a release layer, and an outer diameter of each of the plurality of non-contact areas is smaller than an outer diameter of each of the plurality of contact areas. The second-side roller includes a shaft member integrally formed to have a stepped shape.

A calendering apparatus is provided for the mechanical compacting of an electrode, in particular of a flat form. The calendering apparatus includes a compacting device and a guide roller. The guide roller is configured to feed the electrode to the compacting device during the operation of the calendering apparatus. The guide roller has first regions and second regions in certain parts of its rolling surface, and the first and second regions have different thermal conductivities.

A transport roller pair including: a first-side roller provided with a plurality of roller portions spaced apart in a rotation axial line direction; a fixing device; and an image forming device is provided. The first-side roller includes roller portions. The transport roller pair further includes a second-side roller including a plurality of contact areas and a plurality of non-contact areas as areas other than the plurality of contact areas. At least the contact areas are covered with a release layer, and an outer diameter of each of the plurality of non-contact areas is smaller than an outer diameter of each of the plurality of contact areas. The second-side roller includes a shaft member integrally formed to have a stepped shape.

An image forming system includes: a transfer unit that transfers an image onto an object; a transporter that transports the object in the horizontal direction; a raising/lowering unit that raises and lowers the object in the vertical direction; and a processor configured to: after height adjustment performed by the raising/lowering unit, if the object has a top whose height is greater than a predetermined height when the object is to be transported to the transfer unit, stop the transport of the object to the transfer unit.