A drum cartridge includes: a drum frame to which a developing cartridge is attachable; a photosensitive drum rotatable about an axis extending in a first direction; a memory having an electrical contact surface; and a resilient member positioned between the electrical contact surface and the drum frame. The resilient member is configured to expand and compress in a second direction crossing the electrical contact surface between a first state and a second state, the resilient member having a shorter length in the second state than in the first state. A distance between the drum frame and the electrical contact surface in the second direction when the resilient member is in the second state is smaller than a distance between the drum frame and the electrical contact surface in the second direction when the resilient member is in the first state.

A sheet feeding device includes a sheet feeding roller, a following roller, a rotational speed detection part, and a control part. The rotational speed detection part is configured to detect a rotational speed of the following roller. The control part is configured to accelerate a rotation of the sheet feeding roller and to adjust a sheet interval. The control part obtains a rotational rate of the following roller to the sheet feeding roller based on the rotational speed of the following roller, obtains an actual linear velocity of the sheet based on the rotational rate of the following roller and a theoretical linear velocity of the sheet after accelerating the rotation of the sheet feeding roller, and then adjusts the sheet interval based on the actual linear velocity of the sheet.

An image formation apparatus according to an embodiment may include a fixation device and a controller. The fixation device includes: a fixation member includes a first region and a second region located closer to a center in a longitudinal direction of the fixation member than the first region; a pressurizing member that forms a nip portion between the fixation member and the pressurizing member; first and second heat generating portions that heat the first and second regions, respectively; a first sensor that detects a first temperature of one of the pressurizing member and the fixation member at a position corresponding to the first region; and a second sensor that detects a second temperature of the one at a position corresponding to the second region. The controller controls a drive speed of the pressurizing member or the fixation member based on the first and second temperatures.

The present invention provides a recording medium detecting device, an image forming device, an image forming system, a recording medium detecting method, and a non-transitory recording medium storing a computer readable program capable of detecting a grain direction of a recording medium. A recording medium detecting device has: a sensor capable of detecting a recording medium from a first detection direction and a second detection direction different from the first detection direction; and a control unit. The control unit determines a grain direction of a recording medium from first surface property data obtained when the recording medium is detected from the first detection direction and second surface property data obtained when the recording medium is detected from the second detection direction.

An image forming apparatus includes an image forming portion, a belt, an inner roller, an outer member, an inner roller position changing mechanism, an acquiring portion, and a controller. In a case that second information acquired by the acquiring portion shows that first and second recording materials are coated paper, the controller controls a position changing mechanism so that a position of the inner roller when a toner image is transferred onto the second recording material is changed to a second position. In a case that the second information acquired by the acquiring portion shows that the first and second recording materials are plain paper, the controller controls the position changing mechanism so that the position of the inner roller when the toner image is transferred onto the second recording material is maintained at a first position.

An image forming apparatus includes a metallic plate, a projection member, a hole and a bent portion. The projection member is provided with a projection portion projecting from the metallic plate. The hole is formed by cutting and raising a part of the metallic plate. The bent portion is cut and raised from the hole. The projection portion projects from the hole. The bent portion is positioned below the projection portion in a direction of gravity in a state in which the projection portion projects from the hole, and covers the projection portion as seen from below in the direction of gravity.

In a method and an apparatus for forming on a substrate (214) a pattern of a material, a material layer is provided on an intermediate carrier (204) and an adhesive layer is provided on the material layer, wherein at least one of the material layer or the adhesive layer comprises a pattern corresponding to the pattern to be formed on the substrate (214). The material is transferred to the substrate (214) with the adhesive fixing the material to a surface (216) of the substrate (214).

A driving apparatus includes a drive output member configured to, when driving a member to be driven, receive a first force from the member to be driven in a direction in which the drive output member comes off a rotation shaft of a motor, and when driven by a drive transmission member, receive a second force from the drive transmission member in a direction opposite to that of the first force. The second force is equal to or greater than the first force.

An image forming apparatus includes: an inverting unit that inverts a sheet when an image forming process for forming images on both sides of the sheet is performed; an image forming unit that forms an image on a second side of the sheet based on first side image data and forms an image on a third side of the sheet based on second side image data; a controller that starts the image forming process upon receiving print data to be printed on specific paper, and inverts a sheet fed from a sheet feeding unit once or more; and a converting unit that, when the sheet fed from the sheet feeding unit is the specific paper, converts the first side print data which is received to be printed on the specific paper into N-th side image data where N≥2 and transfers the N-th side image data to the image forming unit.

In one example of the disclosure, a first sensor located adjacent to a first end of the blanket drum is utilized to take a first temperature reading. A second sensor located adjacent to a second end of the blanket drum is utilized to take a second temperature reading. A blanket creep condition is identified responsive to determining a difference in blanket drum temperatures is in excess of a predetermined threshold. A remedial measure is caused to be performed to address the blanket creep condition.