A digital printing process for xerography printing with curable dry toner. The process includes: forming a latent image as a pattern of electric charge on a surface of an imaging member; transferring dry toner onto a development member; developing the latent image by transferring dry toner from the development member onto the imaging member in accordance with the pattern; transferring the dry toner from the imaging member to a first substrate; applying a second substrate on the transferred dry toner, fusing the transferred dry toner, and bonding the second substrate to the first substrate. The fusing is done before and/or during and/or after the applying of the second substrate. After application of the second substrate, the dry toner is irradiated with actinic radiation or particle beams to cure at least the fused transferred dry toner. The irradiating is done after and/or during the fusing.

An image forming system includes an image forming unit including a first photosensitive member, a first developing unit, a second photosensitive member, a second developing unit, a third photosensitive member, a third developing unit, a fourth photosensitive member, and a fourth developing unit, a varnish applying unit; an irradiation unit; and a controller configured to control image formation by the image forming unit to form a black image, on which the varnish is superimposed, with the yellow toner, the magenta toner, and the cyan toner.

Provided is an image recording composition used for an electrostatic image developing toner or an ink-jet ink, containing a photoisomerization compound which is a stilbene derivative having a structure represented by Formula (1),

##STR00001##

wherein R.sub.1 represents an electron donating group; R.sub.2 represents an electron withdrawing group; R.sub.3 to R.sub.10 each independently represent a hydrogen atom or an alkyl group which may have a branch, provided that at least one of R.sub.3 to R.sub.10 represents an alkyl group which may have a branch.

Provided is an image recording composition used for an electrostatic image developing toner or an ink-jet ink, containing a photoisomerization compound which is a stilbene derivative having a structure represented by Formula (1), ##STR00001##
wherein R.sub.1 represents an electron donating group; R.sub.2 represents an electron withdrawing group; R.sub.3 to R.sub.10 each independently represent a hydrogen atom or an alkyl group which may have a branch, provided that at least one of R.sub.3 to R.sub.10 represents an alkyl group which may have a branch.

An image forming apparatus includes an image forming unit, a fixing unit, a varnish coater, and a controller. When a first image forming job in which a toner image is formed to a first recording material and varnish is not applied is executed, the controller controls conveyance of the first recording material at a fixing nip portion such that a conveyance speed of the first recording material at the fixing nip portion is a first conveyance speed. When a second image forming job in which a toner image is formed to a second recording material of which a grammage is the same as a grammage of the first recording material and varnish is applied is executed, the controller controls conveyance of the second recording material at the fixing nip portion such that the second recording material is conveyed at a second conveyance speed faster than the first conveyance speed.

An image forming apparatus includes an image forming portion including an image bearing member, a developing device, and an intermediary transfer belt; a feeding device including a feeding belt; an ultraviolet irradiation portion; a cover; a first shielding plate extending in a direction perpendicular to the feeding direction on a feeding surface of the feeding belt from an inner surface of the cover downwardly with respect to the vertical direction and configured to shield the intermediary transfer belt from the ultraviolet radiation toward the intermediary transfer belt; and a second shielding plate provided on the cover and extending downwardly with respect to the vertical direction along an outer surface of the intermediary transfer belt. The second shielding plate is configured to shield the intermediary transfer belt from the ultraviolet radiation toward the intermediary transfer belt.

An image forming apparatus includes an image forming portion for forming an image on a sheet by using a developer including toner, a feeding belt for feeding the sheet, an infrared irradiating portion for irradiating, with infrared radiation, the image on the sheet fed by the feeding belt, and an ultraviolet irradiating portion for irradiating, with ultraviolet radiation, the image on the sheet having been irradiated with the infrared radiation to fix the developer on the sheet by ultraviolet radiation. In addition, a controller controls operations of the feeding belt and the infrared irradiating portion, and causes the infrared irradiating portion to irradiate the feeding belt with the infrared radiation while causing the feeding belt to rotate in a stand-by state in which the controller waits for an execution instruction of an image forming operation in a state in which the image forming operation is capable of being started.

An emulsion aggregation toner composition includes toner particles including: an unsaturated polymeric resin, such as amorphous resins, crystalline resins, and combinations thereof; an optional colorant; an optional wax; an optional coagulant; and a photoinitiator. By optimizing the particle size of the emulsion, the aggregant concentration utilized in the emulsion aggregation process, and the solids content of the emulsion, toners may be produced capable of generating images with non-contact fusing that have high gloss.

An image forming method includes: forming an image with a printing material containing a wax on a recording medium: applying a postprocessing liquid onto the image as postprocessing; and forming a layer of the postprocessing liquid, wherein an interfacial tension of the postprocessing liquid to water is within a range of 2 to 13 mN/m at 25? C.

A light irradiator includes a light source and its drive, a heat-dissipating member, and a rectangular housing with vents and a light-emission opening. The housing includes a first surface having a first side with a first dimension and a second side with a second dimension, a second surface having the second side and a third side with a third dimension, and a third surface having the first and third sides. The light-emission opening is in the first surface. First and second vents are in the second surface, with the first vent nearer the opening than the second vent, and the second vent opposite to the opening. An axial fan and a first plate are at the second vent. The first plate faces the axial fan with a spacing less than or equal to the first dimension between them. A second plate outside the housing separates the first and second vents.