Abstract: An image forming device includes a central processing unit (CPU).

Abstract: An information processing device includes a processor, in which the processor causes an operation part for executing a predetermined function and relevant information related to the predetermined function to be displayed on a screen of a display, accepts execution of the predetermined function by a continuous operation on the operation part, and changes a portion of the relevant information to be displayed on the screen according to progress of the continuous operation on the operation part during a period from the start of the operation on the operation part to the acceptance of the execution.

Abstract: An image formation device is provided with a CPU. The CPU performs control to execute a predetermined function upon execution of an operation by a user on an operation unit which is displayed at a display, and to change operability of the operation such that as an importance degree which is determined in accordance with an execution condition for the predetermined function becomes relatively high, a difficulty degree of the operation required for executing the predetermined function becomes high.

Abstract: An information processing device includes a CPU that executes control such that an operation unit receiving a movement operation through dragging or sliding of a user and giving an instruction for a predetermined processing is displayed on a display, the operation unit is moved to follow the movement operation when the movement operation is executed on the operation unit by the user, and when the movement operation ends after the movement of the operation unit from one end portion to a side in front of the other end portion of a movement region of the operation unit by the movement operation, the operation unit is moved to the other end portion and a notification unit notifies with a sound indicating that the predetermined processing is executed after the movement of the operation unit to a position corresponding to the other end portion.

Abstract: An information processor includes a dividing part and a providing part. The dividing part divides a series of data pieces identified by an identification information piece into multiple data pieces identified by respective different identification information pieces. The providing part provides, based on the number of digits of a total number of the multiple data pieces, each of the multiple data pieces resulting from the division by the dividing part with a corresponding one of the identification information pieces, the corresponding one identification information piece including a code having digits the number of which is equal to or larger than the number of digits of the total number of the multiple data pieces and indicating an order of placement of the data piece in the series of data pieces.

Abstract: A powder container, storing powder used for an image forming apparatus, includes a container body, an opening, and a shutter. The opening discharges or introduces the powder, and the shutter opens and closes the opening. The shutter includes a first engaging portion and a second engaging portion. The first engaging portion engages a shutter switch, provided to an apparatus body of the image forming apparatus, in a first trajectory. The second engaging portion engages the shutter switch in a second trajectory different from the first trajectory. The shutter approaches and contacts the shutter switch in the first trajectory or the second trajectory to open and close the opening.

Abstract: A communication terminal includes an attribute data acquisition unit that acquires attribute data indicating an attribute of real data if at least a single piece of the real data is added or updated as one of content items on a data memory, a notification controller that controls a notification unit to notify a user of the attribute indicated by the attribute data acquired by the attribute data acquisition unit, and a real data acquisition unit that acquires real data predetermined as an acquisition target by the communication terminal with the notification controller not notifying the user of the attribute indicated by the attribute data if the attribute indicated by the attribute data acquired by the attribute data acquisition unit matches the attribute of the predetermined real data.

Abstract: A powder container, storing powder used for an image forming apparatus, includes a container body, an opening, and a shutter. The opening discharges or introduces the powder, and the shutter opens and closes the opening. The shutter includes a first engaging portion and a second engaging portion. The first engaging portion engages a shutter switch, provided to an apparatus body of the image forming apparatus, in a first trajectory. The second engaging portion engages the shutter switch in a second trajectory different from the first trajectory. The shutter approaches and contacts the shutter switch in the first trajectory or the second trajectory to open and close the opening.

Abstract: An information processor includes a dividing part and a providing part. The dividing part divides a series of data pieces identified by an identification information piece into multiple data pieces identified by respective different identification information pieces. The providing part provides, based on the number of digits of a total number of the multiple data pieces, each of the multiple data pieces resulting from the division by the dividing part with a corresponding one of the identification information pieces, the corresponding one identification information piece including a code having digits the number of which is equal to or larger than the number of digits of the total number of the multiple data pieces and indicating an order of placement of the data piece in the series of data pieces.

Abstract: A power supply device to electroconductively connect a power-fed terminal included in a power-fed unit and a power supply terminal of a power supply board. The power supply device includes a unit contact portion to contact the power-fed terminal; a board contact portion to contact the power supply board; a connector to connect the unit contact portion and the board contact portion; and a support member to support the unit contact portion, the board contact portion, and the connector. The unit contact portion is held on an inner face of the support member opposed to the power-fed unit; the board contact portion is held on an outer face of the support member opposed to the power supply board; and the connector connects the unit contact portion and the board contact portion through the support member.

Abstract: An image forming apparatus includes an apparatus body, a developer container, an outlet, a first shutter, a cover member, a movable member, and a transmission member. The developer container is removably mountable relative to the apparatus body through an opening. The first shutter opens and closes the outlet. The cover member opens and closes the opening. The movable member is reciprocally movable in forward and reverse directions. The transmission member transmits action of the cover member to the movable member and is disposed between the cover member and the movable member. When the movable member is moved in the forward direction, the first shutter is closed. When the movable member is moved in the reverse direction, the first shutter is opened. In a terminal period of an opening operation of the cover member, a movement direction of the movable member is reversed from the forward direction to the reverse direction.

Abstract: An image forming apparatus includes: a developer container to contain a developer therein and a developer supply port; an image forming unit to form an image with the developer from the developer container and including a developer intake port; an openable/closable upper cover configured to cover an upper part of the developer container in a closed state and take out the developer container in an open state; an openable/closable retention cover to hold the developer container and configured to allow the image forming unit to be removed when the retention cover is opened; a coupling device to secure a coupled state of the developer supply port of the developer container with the developer intake port of the image forming unit when the upper cover is in a closed state; and a disconnection preventer to prevent the developer container from disconnecting from the retention cover when the upper cover is opened.

Abstract: An image forming apparatus includes an image forming unit, first and second rotary shafts, a drive source to rotate at a predetermined low velocity and a predetermined high velocity, a first rotary transmitter connected between the drive force and the first rotary shaft, a second rotary transmitter connected between the drive force and the second rotary shaft, and a drive block member connected between the drive source and the second rotary shaft to block transmission of the drive force to the second rotary shaft when the drive source rotates at the predetermined high velocity. When the drive source rotates at the predetermined low velocity, the drive source drives the second rotary shaft using a difference in torque between an upper limit in high velocity rotation and an upper limit in low velocity rotation greater than the upper limit in high velocity rotation.

Abstract: An image forming apparatus includes an exposure device as a light source, a developer container storing developer and attached to a main body of the image forming apparatus perpendicular to a lengthwise direction of the photoconductor, a developing unit and a photoconductor unit having a photoconductor for bearing a latent image thereon each detachably attached to the main body substantially in the same direction as the developer container. An exposure device displacing mechanism displaces the exposure device between a first position enabling the exposure device to function as the light source and a second position disabling the exposure device to function as the light source. The photoconductor unit is detached when the developer container is either displaced from an initially attached position or is removed from the main body and the exposure device displacing device has displaced the exposure device to the second position.

Abstract: An image forming apparatus includes an apparatus body, a developer container, an outlet, a first shutter, a cover member, a movable member, and a transmission member. The developer container is removably mountable relative to the apparatus body through an opening. The first shutter opens and closes the outlet. The cover member opens and closes the opening. The movable member is reciprocally movable in forward and reverse directions. The transmission member transmits action of the cover member to the movable member and is disposed between the cover member and the movable member. When the movable member is moved in the forward direction, the first shutter is closed. When the movable member is moved in the reverse direction, the first shutter is opened. In a terminal period of an opening operation of the cover member, a movement direction of the movable member is reversed from the forward direction to the reverse direction.

Abstract: A power supply device to electroconductively connect a power-fed terminal included in a power-fed unit and a power supply terminal of a power supply board. The power supply device includes a unit contact portion to contact the power-fed terminal; a board contact portion to contact the power supply board; a connector to connect the unit contact portion and the board contact portion; and a support member to support the unit contact portion, the board contact portion, and the connector. The unit contact portion is held on an inner face of the support member opposed to the power-fed unit; the board contact portion is held on an outer face of the support member opposed to the power supply board; and the connector connects the unit contact portion and the board contact portion through the support member.

Abstract: A sheet feeder stackable in multiple levels and attachable to an image forming apparatus. The sheet feeder includes a drive source, a drive transmission unit, a first drive coupling unit, a second drive coupling unit, a sheet feed roller, and a grip roller. During operation of multiple sheet feeders stacked in the multiple levels, the drive transmission unit and the first drive coupling unit, both provided to a given sheet feeder of the multiple sheet feeders, are coupled to each other, and the first drive coupling unit of the given sheet feeder is coupled to the grip roller of an adjacent sheet feeder disposed immediately below the given sheet feeder to drive the grip roller of each of the multiple sheet feeders substantially in synchrony.

Abstract: An image forming apparatus includes: a developer container to contain a developer therein and a developer supply port; an image forming unit to form an image with the developer from the developer container and including a developer intake port; an openable/closable upper cover configured to cover an upper part of the developer container in a closed state and take out the developer container in an open state; an openable/closable retention cover to hold the developer container and configured to allow the image forming unit to be removed when the retention cover is opened; a coupling device to secure a coupled state of the developer supply port of the developer container with the developer intake port of the image forming unit when the upper cover is in a closed state; and a disconnection preventer to prevent the developer container from disconnecting from the retention cover when the upper cover is opened.

Abstract: A drive transmission system includes a shaft member storing grease in a shaft outer circumferential small diameter section. A drive transmission gear is provided including a gear inner circumferential sliding section and a gear inner circumferential large diameter section. A gear moving device is provided to move the drive transmission gear reciprocally along the shaft member in a shaft direction. A restriction device is provided to restrict a movement range of the drive transmission gear along the shaft member in the shaft direction to enable the gear inner circumferential large diameter section to face the shaft outer circumferential small diameter section substantially continuously.