Abstract: A heating device includes a rotator that rotates and a heater that heats the rotator. A rotator holder holds each lateral end of the rotator in a longitudinal direction of the rotator. The rotator holder is adhered with one of silicone oil and silicone grease, that contains siloxanes that are not smaller than a dodecamer and not greater than a heptadecamer and have a concentration not greater than 1,250 ppm.

Abstract: A card reading device and a card reading system. The card reading device includes an image scanner to read an image of a card. In the card reading device, the image scanner is usable when the card reading device is attached to a data receiving apparatus that receives data of the image scanned by the image scanner. In the card reading device, the image scanner is usable when the card reading device is detached from the data receiving apparatus. The card reading system includes the card reading device and the data receiving apparatus that receives the data of the image scanned by the image scanner.

Abstract: A heating device includes a rotator, a heating source, a reflector, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The reflector includes a reflection face that reflects radiant heat emitted from the heating source. The reflection face has a reflectance lower at each end portion of the reflection face in a longitudinal direction of the rotator than at a center portion of the reflection face in the longitudinal direction of the rotator. The rotator holder holds a longitudinal end portion of the rotator. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

Abstract: A heating device includes a rotator, a heating source, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The rotator holder holds a longitudinal end portion of the rotator. The rotator holder includes a reflector disposed at least at a portion to be irradiated with radiant heat emitted from the heating source to reflect the radiant heat. The reflector has a reflectance of not less than 60%. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

Abstract: A heating device includes a rotating body, a heating source, a rotating body holder, and a lubricant of liquid or semi-solid. The heating source heats the rotating body. The rotating body holder holds both longitudinal ends of the rotating body rotatably. The lubricant of liquid or semi-solid adheres to the rotating body holder. A temperature of the rotating body holder is lower than a generation temperature of fine particles of the lubricant.

Abstract: An image forming apparatus includes a heating device, a recording medium ejector, a recording medium tray, an outer wall having an intake, and a filter. The heating device heats a recording medium having an image on one side of the recording medium. The recording medium ejector ejects the recording medium with the one side facing downward. On the recording medium tray, the recording medium ejected by the recording medium ejector is stacked. The intake is open toward the recording medium tray and is disposed at a position below the recording medium ejector. At the position, a maximum amount of recording media placeable on the recording medium tray does not cover at least a part of the intake. The filter collects foreign substances in air sucked from the intake.

Abstract: A heating device includes a rotator, a heating source, a reflector, a shield, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The reflector reflects radiant heat emitted from the heating source. The shield is disposed closer to a longitudinal end portion of the rotator than to a longitudinal center portion of the rotator to shield, between the heating source and the rotator, the radiant heat emitted from the heating source. The shield has a reflectance lower than a reflectance of the reflector. The rotator holder holds the longitudinal end portion of the rotator. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

Abstract: A fixing device includes a rotator, a heater, a rotator support, a nip formation pad, lubricant, and a pressure rotator. The heater heats an inner circumferential surface of the rotator. The rotator support supports an end of the inner circumferential surface of the rotator in an axial direction of the rotator. The rotator slides on the rotator support. The nip formation pad is in contact with the inner circumferential surface of the rotator. One end of the nip formation pad in a longitudinal direction of the nip formation pad is separated from the rotator support with a clearance of 2 mm or more. The lubricant is between the rotator and the nip formation pad. The pressure rotator presses the nip formation pad via the rotator to form a nip between the rotator and the pressure rotator.

Abstract: A card reading device and a card reading system. The card reading device includes an image scanner to read an image of a card. In the card reading device, the image scanner is usable when the card reading device is attached to a data receiving apparatus that receives data of the image scanned by the image scanner. In the card reading device, the image scanner is usable when the card reading device is detached from the data receiving apparatus. The card reading system includes the card reading device and the data receiving apparatus that receives the data of the image scanned by the image scanner.

Abstract: An image forming apparatus includes a recording device and an apparatus body to internally house the recording device. The apparatus body includes an attachment unit to be removably mounted in the apparatus body and an apparatus body-side connector. The attachment unit includes an attachment-side connector to be electrically connected to the apparatus body-side connector. The apparatus body also includes a pressing portion to press the attachment unit in a direction in which the attachment-side connector faces the apparatus body-side connector in a state where the attachment unit is attached to the apparatus body. The direction is orthogonal to a mounting direction of the attachment unit. The apparatus body further includes a movable member holding the pressing portion movable between a first position where the pressing portion is closest to the apparatus body-side connector and a second position where the pressing portion is farthest from the apparatus body-side connector.

Abstract: An article includes a body member and a detachable member detachably attached to the body member. One of the body member and the detachable member includes a cover portion having an engaging portion on an inner wall face of the cover portion. The other includes a covered portion that is covered with the cover portion and has an engaged portion on an outer wall face of the covered portion. The engaging portion and the engaged portion are configured to be disengaged by warping the cover portion so that the cover portion displaces to an outer wall face side of the cover portion. The one of the body member and the detachable member includes a finger-applying-position indicator at a position deviated from a portion corresponding to the cover portion, on an outer wall face of the one. The finger-applying-position indicator indicates a position to be applied with fingers of a user.

Abstract: An image forming apparatuses includes an apparatus body configured to house a replacement part. The apparatus body includes a guiding face configured to guide a guided face of the replacement part. The guided face is on a side along a movement direction in which the replacement part moves between a set position in the apparatus body and an attaching and detaching position at which the replacement part is attached to and detached from the apparatus body. The apparatus further include a moving device configured to move the replacement part between the set position and the attaching and detaching position, and a pressing device configured to press the guided face of the replacement part against the guiding face of the apparatus body while the replacement part moves between the set position and the attaching and detaching position.

Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium, a main body configured to house the recording device, and a cover rotatably attached to the main body. The main body includes a recording face to be disposed opposite the recording medium, a first face positioned opposite the recording face, and a second face positioned between the recording face and the first face. The cover includes a first cover portion configured to cover the first face of the main body, and a second cover portion configured to cover at least a portion of the second face, and the second cover portion is configured to house a battery.

Abstract: An image forming apparatus includes a body, an image forming device configured to form an image on a recording medium and supported by the body, an attachment configured to be removably attached to the body, and a cover configured to be removably attached to the body. The cover is configured to cover the attachment attached to the body. The attachment is configured to switch a state in use of the image forming apparatus by attaching and removing of the attachment to and from the body.

Abstract: An image forming apparatus includes an apparatus body, a cover, a first positioning member, and a second positioning member. The apparatus body includes a mounted portion. The cover is detachably mounted on the apparatus body. The cover includes a mounting portion configured to be mounted on the mounted portion of the apparatus body. The first positioning member is configured to position the cover at a first target position in a first direction with respect to the apparatus body. The second positioning member is configured to position the cover at a second target position in a second direction orthogonal to the first direction with respect to the apparatus body, before the mounting portion is mounted on the mounted portion after the cover is positioned at the first target position by the first positioning member.

Abstract: An article includes a body member and a detachable member detachably attached to the body member. One of the body member and the detachable member includes a cover portion having an engaging portion on an inner wall face of the cover portion. The other includes a covered portion that is covered with the cover portion and has an engaged portion on an outer wall face of the covered portion. The engaging portion and the engaged portion are configured to be disengaged by warping the cover portion so that the cover portion displaces to an outer wall face side of the cover portion. The one of the body member and the detachable member includes a finger-applying-position indicator at a position deviated from a portion corresponding to the cover portion, on an outer wall face of the one. The finger-applying-position indicator indicates a position to be applied with fingers of a user.

Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium and an apparatus body configured to house the recording device. The image forming apparatus further includes an attachment unit configured to be removably mounted in the apparatus body; a protection target disposed downstream, in a mounting direction of the attachment unit, from a mounting position of the attachment unit in the apparatus body; and a contact portion at least a part of which is positioned upstream from the protection target in the mounting direction.

Abstract: An image forming apparatus includes a recording device and an apparatus body to internally house the recording device. The apparatus body includes an attachment unit to be removably mounted in the apparatus body and an apparatus body-side connector. The attachment unit includes an attachment-side connector to be electrically connected to the apparatus body-side connector. The apparatus body also includes a pressing portion to press the attachment unit in a direction in which the attachment-side connector faces the apparatus body-side connector in a state where the attachment unit is attached to the apparatus body. The direction is orthogonal to a mounting direction of the attachment unit. The apparatus body further includes a movable member holding the pressing portion movable between a first position where the pressing portion is closest to the apparatus body-side connector and a second position where the pressing portion is farthest from the apparatus body-side connector.

Abstract: A liquid discharge apparatus includes an apparatus body, a liquid discharge head configured to discharge a liquid and be removably attached to the apparatus body, and a temperature detection device configured to detect a temperature of the liquid discharge head. The temperature detection device includes a temperature detector disposed in the apparatus body and configured to be in line contact with the liquid discharge head.

Abstract: An image forming apparatuses includes an apparatus body configured to house a replacement part. The apparatus body includes a guiding face configured to guide a guided face of the replacement part. The guided face is on a side along a movement direction in which the replacement part moves between a set position in the apparatus body and an attaching and detaching position at which the replacement part is attached to and detached from the apparatus body. The apparatus further include a moving device configured to move the replacement part between the set position and the attaching and detaching position, and a pressing device configured to press the guided face of the replacement part against the guiding face of the apparatus body while the replacement part moves between the set position and the attaching and detaching position.