A fixing device includes a fixing rotator, a pressure rotator, and a cleaning device. The cleaning device cleans a surface of at least one of the fixing rotator and the pressure rotator. The cleaning device includes a cleaning web, a web holder, a winder, a cleaning pressure rotator, a pressure applier, and a temporary holder. The cleaning web slides over and cleans the at least one of the fixing rotator and the pressure rotator. The web holder holds and sends out the cleaning web. The winder winds the cleaning web. The cleaning pressure rotator presses the cleaning web against the at least one of the fixing rotator and the pressure rotator. The pressure applier presses against the cleaning web along a width direction of the cleaning web perpendicular to a direction in which the cleaning web is wound. The temporary holder temporarily holds the pressure applier.

An image forming apparatus includes an image carrier; a transfer unit that transfers an image carried by the image carrier to a continuous medium; a fixing device including a first fixing member that contacts the continuous medium and heats the image transferred to the continuous medium and a second fixing member that is disposed so as to face the first fixing member with the continuous medium therebetween and presses the image, the fixing device fixing the image transferred to the continuous medium, the fixing device being configured so that the first fixing member and the second fixing member are capable of contacting or separating from each other; and a separation member that contacts the continuous medium and separates the continuous medium from the first fixing member when the first fixing member and the second fixing member separate from each other.

An image forming apparatus includes an image carrier; a transfer unit that transfers an image carried by the image carrier to a continuous medium; a fixing device that fixes the image transferred to the continuous medium; a determination unit that determines whether or not a tension is applied to the continuous medium; and a controller that drives the fixing device if a tension is applied to the continuous medium.

A sheet conveyance apparatus includes: a speed detection roller that detects a conveyance speed of a sheet by coming into contact with the sheet being conveyed and being driven to rotate; and a hardware processor that performs temperature control to make an ambient temperature of the speed detection roller a predetermined temperature.

A conveyor includes: a receiver that detachably receives a roll-like sheet; a conveyance unit that conveys the sheet in a conveyance orientation along a conveyance surface; and a tensioner that applies tension to the sheet at a position upstream of the conveyance unit in the conveyance orientation. The tensioner includes: a frame having a groove pair extending in a first direction along the conveyance orientation; a guide having a curved surface that contacts the sheet and an engagement member pair that engages with the groove pair; a pivoting member that pivots around an axis extending in a second direction orthogonal to the first direction and parallel to the conveyance surface; a transmission member that transmits pivoting of the pivoting member to the guide; and an urging member that applies urging force including a component in the first direction to the guide.

An example printing apparatus is illustrated. The printing apparatus includes a print engine assembly. The print engine assembly further includes a bottom chassis portion. The print engine assembly also includes a top chassis portion. The print engine assembly also includes a print head positioned within the top chassis portion. The print engine assembly also includes a plurality of offset pins coupled to the print head, where the plurality of offset pins abuts the bottom chassis portion, and where the plurality of offset pins enables the print head to be positioned at a predetermined distance from the bottom chassis portion.

An image formation apparatus includes: a transferrer that forms a toner image on an image formation surface of paper; a fixer that fixes the toner image on the paper; a paper conveyor that conveys the paper between an upstream side of the transferrer and a downstream side of the fixer in a paper conveyance direction; and a paper pre-heater that heats, on the upstream side of the transferrer in the paper conveyance direction, the image formation surface of the paper.

An image forming system includes: an image forming device that is disposed at a first conveyance path and forms an image on a recording medium that is a continuous sheet or a long sheet; a first conveyor that conveys the recording medium on the first conveyance path in a conveyance direction; an image reader that reads the image formed on the recording medium at a second conveyance path on a downstream side of the first conveyance path in the conveyance direction; a second conveyor that conveys the recording medium on the second conveyance path; and a controller that controls a speed of a drive source of the first conveyor and controls a torque of a drive source of the second conveyor.

An example printing apparatus is illustrated. The printing apparatus includes a print engine assembly. The print engine assembly further includes a bottom chassis portion. The print engine assembly also includes a top chassis portion. The print engine assembly also includes a print head positioned within the top chassis portion. The print engine assembly also includes a plurality of offset pins coupled to the print head, where the plurality of offset pins abuts the bottom chassis portion, and where the plurality of offset pins enables the print head to be positioned at a predetermined distance from the bottom chassis portion.

An image forming apparatus includes: a conveying unit configured to convey continuous paper in a forward direction and in a reverse direction; an image forming unit configured to form an image on the continuous paper conveyed in the forward direction; a fixing unit configured to fix the image formed onto the continuous paper; an adjusting unit configured to adjust the image forming unit while the continuous paper is conveyed in the reverse direction; and a control unit configured to cause the conveying unit to convey the continuous paper in the reverse direction by an amount equivalent to a predetermined reverse conveyance distance to adjust the bottom edge of the image in a conveying direction to a position on an upstream side of the image forming unit, and cause the conveying unit to convey the continuous paper in the forward direction and cause the image forming unit to resume image formation.