Certain examples of seals that can move along a slit are disclosed. The seals can comprise a first leaf, a second leaf, and a biasing member to push the first leaf away from the second leaf. Also, apparatus for applying a fluid, and printing systems are described.

A stereoscopic pattern apparatus includes a base roller and a retrieving roller, a fine pattern hardening roller, an ink inserting roller and a convex pattern hardening roller. The base roller and the retrieving roller respectively provide and retrieve a base film. The fine pattern hardening roller is disposed between the base and retrieving rollers, and forms a lower hardening layer on the base film. A fine pattern is formed on the lower hardening layer. The ink inserting roller is disposed between the fine pattern hardening roller and the retrieving roller, and inserts an ink into the fine pattern. The convex pattern hardening roller is disposed between the ink inserting roller and the retrieving roller, and forms an upper hardening layer on the lower hardening layer. A convex lens is uniformly formed on the upper hardening layer.

An image forming apparatus for forming an image on a recording medium, the image forming apparatus includes a discharge tray for supporting the recording medium, an internal unit disposed inside the apparatus main body, and a door serving as a part of outer surface members of the apparatus main body, the door being opened and closed to expose and cover an inside of the apparatus main body to the outside, wherein, by opening of the door, a fixing member that fixes the discharge tray to the apparatus main body is exposed to the outside, and removing of the fixing member from the apparatus main body allows the discharge tray to be detached from the apparatus main body without removing the outer surface members other than the door, and wherein detaching of the discharge tray from the apparatus main body allows the internal unit to be accessed.

An image forming apparatus includes an image forming unit, a transfer portion that transfers a toner image to a transfer material, a first roller disposed upstream of the transfer portion in a conveying direction of the transfer material, and a second roller disposed upstream of the transfer portion and downstream of the first roller. The triboelectric charge polarities of the surfaces of the first and second rollers when the surfaces are triboelectrically charged by contact with the transfer material differ from each other.

A moving member is disposed between an upper guide, which guides a conveyed transfer material and to which a voltage is applied from a power source, and a lower guide, which guides the conveyed transfer material, the upper guide being disposed on an upstream side with respect to a photosensitive drum in a conveyance direction of the transfer material. The moving member is supported by the upper guide, and is capable of abutting against and separating from the lower guide. By being pushed by the transfer material, the moving member transitions from a first state in which the moving member is abutted against the lower guide to a second state in which the moving member is separated from the lower guide.

A heating apparatus includes a body and a holder removably placed inside the body. The holder removably holds a heating object. A receiver removably holds the holder. A heater heats the heating object held by the holder held by the receiver. A mover moves one of the receiver and the heater vertically relative to another one of the receiver and the heater to a non-contact heating position where the heating object is isolated from the heater.

A printing device is described in which there is a media guide that is arranged to guide a printable media substrate from an upstream media path towards an input of the printing device or away from an output of the printing device towards a downstream media path. The media guide is movable between a first position and a second position. In the first position the media guide is arranged to guide the printable media along a respective media path. In the second position, which is spaced apart from the first position, the media guide forms a buffer region into which a variable amount of media substrate can collect.

An image forming apparatus includes: an image carrier, a developing section, a transfer roller, a power supply section, a conveyance roller, and an operation control section. The operation control section has a cleaning operation mode and an image formation operation mode where images are formed on recording paper. In the cleaning operation mode, the operation control section causes the developing section to supply a predefined amount of toner to a circumferential surface of the image carrier, causes the power supply section to apply a bias of a polarity opposite to a normal charge polarity to the transfer roller, then causes the conveyance roller to convey a single piece of recording paper, causes the conveyance roller to stop rotating operation when the recording paper is located in a nip area, and causes the image carrier and the transfer roller to rotate while the recording paper is stopped in the nip area.

An image forming apparatus includes an image forming section and a transfer section. The image forming section includes a first image forming unit that forms a first developer image and a second image forming unit that forms a second developer image. The transfer section transfers, on a basis of a first transfer condition, the first developer image onto a medium, and transfers, on a basis of a second transfer condition, the second developer image onto the medium onto which the first developer image has been transferred. The second transfer condition is different from the first transfer condition.

In some examples, an apparatus to apply a coating to a media includes a first roller to receive a continuous belt that is to receive a coating from a second roller and to transfer the coating to the media, the first roller having a variable dimension to provide an adjustable width of the continuous belt to the second roller.