An image forming apparatus includes a coating portion configured to perform a coating process that forms a coating film on a recording sheet with an image formed thereon, a main transport path configured to transport the recording sheet with the image formed thereon and to have a branching portion formed thereon, and a sub transport path configured to be once branched from the main transport path at the branching portion and to be returned to the main transport path again. The coating portion is disposed on the sub transport path.

Compositions and methods that generally relates to treating a substrate and for improving adhesion of an image to a treated substrate and more particularly relates to systems and methods utilizing a combination of a poly tertiary amide, colloidal silica, and optionally a polymeric binder, for treating a substrate and for improving adhesion of an electrographic image to a treated substrate.

A sheet laminator includes a sheet separation device, a sheet insertion device, and circuitry. The sheet separation device is configured to perform a sheet separating operation to separate a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet, and a sheet inserting operation to insert an inner sheet between the two sheets. The sheet lamination device is configured to perform a sheet laminating operation on the two-ply sheet after the sheet separating operation and the sheet inserting operation. The circuitry is configured to cause the sheet lamination device to perform the sheet laminating operation on the two-ply sheet while causing the sheet separation device to perform the sheet separating operation on another two-ply sheet subsequent to the two-ply sheet or the sheet separating operation and the sheet inserting operation on said another two-ply sheet.

Provided is an image forming method, wherein after image formation with a printing material containing a release agent, a specific active ray-curable liquid substance is applied with a roll coating method, and when a coordinate (A, V) of a point indicating a contact angle A (°) and a viscosity V (mPa.Math.s) corresponding to the contact angle Av (°) is plotted in a coordinate system having a contact angle A (°) on a horizontal axis and a viscosity V (mPa.Math.s) on a vertical axis, the coordinate is included in a coordinate region R (A, V) on an upper side of a contact angle-viscosity curve represented by a formula on a right side of a specific expression.

An image forming apparatus (1) includes a recording head section (4), a spray section (10), and a controller (9). The recording head section (4) forms an image on a paper sheet (S). The spray section (10) sprays a drug toward the paper sheet (S) to form a drug region (R) on the paper sheet (S). The controller (9) controls the spray section (10). The controller (9) controls the spray section (10) such that at least a part of the image formed on the paper sheet (S) and at least a part of the drug region (R) overlap each other.

An image forming system includes an image forming apparatus, a pressure sealing processing apparatus, and a control unit. The control unit is configured to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is smaller than a predetermined grammage, and is configured not to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is equal to or more than the predetermined grammage.

A coating material processable by non-impact printing to form at least a part of a coating layer representing an image, the coating material having an amorphous resin portion, is curable and is configured for being applied with a thickness of at least 15 μm, the coating material having one or more of the following: a polyester resin having at least one incorporated acid monomer and wherein at least 10 weight percent of the at least one incorporated acid monomer is isophthalic acid; a polyester resin containing 1 to 100 w-% of cycloaliphatic glycol compounds with respect to the total weight of the glycol compounds of the polyester resin component; an acrylic resin; a fluorine containing polymer; a polyurethane resin.

An image forming system includes an image forming unit, a varnish applying unit, a control unit that executes an operation in an image forming mode in which a toner image is formed on a recording material and a varnish image is formed on the recording material on which the toner image is formed, and an input unit that permits input of a line width adjusting value of either one of a line width of a portion of the varnish image overlapping with an image portion and a line width of a portion of the varnish image overlapping with a non-image portion, wherein the varnish image is formed so as to extend over an image portion where the toner image is formed on the recording material and a non-image portion where the toner image is not formed on the recording material.

An image forming system includes an image forming apparatus, a pressure sealing processing apparatus, and a control unit. The control unit is configured to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is smaller than a predetermined grammage, and is configured not to permit execution of the pressure sealing processing process by the pressure sealing processing apparatus on a recording material of which a grammage is equal to or more than the predetermined grammage.

A method of enhancing adhesion of an image to at least one surface of a substrate is provided herein. The method includes treating at least a portion of the surface by applying a composition comprising one or more polymers to the portion of the surface. The method further includes drying the composition after applying the composition to the substrate to form a treated substrate. The method further includes printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate. The substrate is treated and dried less than about 5 minutes prior to being printed.