Provided is an image forming apparatus capable of estimating lives of components more accurately than before. The image forming apparatus includes an ion conductive component, and a processor for estimating a life of the conductive component. The processor acquires an index value related to energization of the conductive component, and estimates the life of the conductive component based on the index value per unit time.

An image forming apparatus includes a casing having a frame, a drive source configured to generate a driving force, a gear mechanism configured to receive the driving force of the drive source, and a drive source support formed in the frame. The drive source support encloses and supports the drive source. At least an upper portion of the drive source support has a plurality of first openings which are spaced from each other.

An image forming apparatus includes an image former configured to print on a printing paper a plurality of lines that are arranged at predetermined intervals in a main scanning direction and are vertical to the main scanning direction using different photosensitive drums, a scanner configured to scan the printing paper on which the plurality of lines are printed, and at least one processor configured to perform color registration correction using the plurality of scanned image

An image forming apparatus, including a housing, a communication interface, a light source unit, and a light guide, is provided. The communication interface includes a communication board and a looped antenna for near field communication. The communication board is arranged to be covered by the housing and has an aperture portion. The looped antenna is arranged on a circumferential edge of the aperture portion to be looped around the aperture portion. The light source includes a light source board, arranged at a position opposite to the housing across the communication interface along a direction of thickness of the communication board, and a light source mounted on the light source board. The light guide extends from the light source through the aperture portion toward the housing.

Provided is an image forming system which optimizes subsequent processes for crossing paper when a causing apparatus has stopped in the state in which paper is spanning the causing apparatus and a downstream apparatus. The image forming system conveys the paper from a first apparatus (the causing apparatus) to a second apparatus (the downstream apparatus) connected to the first apparatus. The image forming system 1 includes a conveying unit and a hardware processor. The conveying unit conveys the paper. The hardware processor determines, in a case where the paper is normally conveyed by the conveying unit across the first apparatus and the second apparatus, whether processes of the first apparatus has been completed for crossing paper which is the paper spanning the first apparatus and the second apparatus, when the first apparatus stops due to an abnormality.

Each of four outer side surfaces of each of a plurality of square pipes include a groove portion formed along a longitudinal direction of each of the plurality of square pipes and a pair of ridge line portions forming edge portions on both sides of the groove portion. An additional member includes a contact plane which is a plane in contact with a portion of the plurality of square pipes. The additional member is fixed to a plurality of first target pipes which are some of the plurality of square pipes with the contact plane in contact with at least one of the pair of ridge line portions, or the additional member is fixed to a second target pipe which is one of the plurality of square pipes with the contact plane in contact with the pair of ridge line portions.

An image carrier unit includes an image carrier configured to carry an image on a surface of the image carrier, a removal member configured to remove an adherent adhering to the surface of the image carrier, a transporter configured to transport the adherent removed by the removal member in an axial direction by axial rotation to discharge the adherent, and a grip portion to be gripped by a user to insert the image carrier unit into or remove the image carrier unit from an image forming apparatus configured to form, on a recording medium, the image on the image carrier. The grip portion includes a recessed portion that constitutes an outer surface while receding toward the transporter in a cross section intersecting the axial direction of the transporter, and has a curved wall serving as a partition from the transporter.

In an image-forming apparatus, a controller is configured to perform: in a case where the controller performs forming a multicolor image on a sheet: bringing, in response to a temperature of a fixing device reaching a first temperature lower than a fixing temperature, first and second developing rollers into contact with first and second photosensitive drums; and feeding, after a first period of time elapses from a time when the temperature of the fixing device reaches the first temperature, a sheet from a sheet tray toward the belt using a pickup roller. The controller is configured to further perform: in a case where the controller performs forming a single-color image on the sheet: bringing, after a second period of time elapses from the time when the temperature of the fixing device reaches the first temperature, the second developing roller into contact with the second photosensitive drum; and the feeding.

An image forming apparatus includes the following: an image forming portion; a first metal side plate and a second metal side plate provided opposite each other with respect to the image forming portion; an antenna for communicating with external equipment; a housing including a top cover that is provided above the first metal side plate and the second metal side plate in a vertical direction, and a side cover that is provided on an outer side opposite to an inner side where the image forming portion is provided with respect to the first metal side plate, wherein the image forming apparatus further includes a support member provided on the first metal side plate, the support member including a housing support portion that supports at least one of the top cover and the side cover, and an antenna support portion that supports the antenna.

An image forming apparatus includes an image forming unit that forms an image on a recording sheet. A casing constituting an outer shell of the image forming apparatus is formed in a table shape including a top plate and a leg portion supporting the top plate, the top plate including a flat working surface. The image forming unit is located inside the top plate. The top plate includes a recording sheet outlet from which the recording sheet having an image formed thereon is discharged.