Abstract: Information to be displayed (display information) on a display of an operation unit for use in operating of an image forming apparatus corresponds to each user. Based on a first instruction from the operation unit, the operation unit reads out the display information stored in a second memory provided in the image forming apparatus and stores the display information into a first memory. Based on a second instruction from the operation unit, the display information is transmitted from the operation unit to the image forming apparatus and is stored in the second memory provided in the image forming apparatus.

Abstract: An image forming apparatus of the present invention includes a human detection unit configured to detect a human, an operation unit including a display device configured to display an operation screen, a touch panel configured to detect a touch operation of the operation screen, a control unit configured to return the operation unit from a first power state in which the display device does not display the operation screen to a second power state in which the display device displays the operation screen based on a detection result of the human detection unit, and an invalidation unit configured to invalidate a touch operation of the operation screen for a predetermined period after the returning starts.

Abstract: Information to be displayed (display information) on a display of an operation unit for use in operating of an image forming apparatus corresponds to each user. Based on a first instruction from the operation unit, the operation unit reads out the display information stored in a second memory provided in the image forming apparatus and stores the display information into a first memory. Based on a second instruction from the operation unit, the display information is transmitted from the operation unit to the image forming apparatus and is stored in the second memory provided in the image forming apparatus.

Abstract: An image forming apparatus of the present invention includes a human detection unit configured to detect a human, an operation unit including a display device configured to display an operation screen, a touch panel configured to detect a touch operation of the operation screen, a control unit configured to return the operation unit from a first power state in which the display device does not display the operation screen to a second power state in which the display device displays the operation screen based on a detection result of the human detection unit, and an invalidation unit configured to invalidate a touch operation of the operation screen for a predetermined period after the returning starts.

Abstract: An input device that is mountable on an image forming apparatus includes a plurality of numerical keys arranged as hardware keys, a connector provided in a casing of the input device and configured to electrically connect the image forming apparatus and the input device, and a USB port provided in the casing and configured to USB-connect external equipment, which is different from the image forming apparatus, to the input device. As viewed in an up-down direction that the numerical keys are pressed, the USB port is provided on a front side surface of the casing.

Abstract: An image forming apparatus includes an image forming portion that forms an image on a recording medium, a display portion that displays information regarding image forming with the image forming portion, a memory storing instructions, and a controller, which executes the instructions, that detects a position of an instruction portion in contact with a surface of the display portion and generate first input information indicating the detected position of the instruction portion, and detects a position of the instruction portion at a location a predetermined distance away from the surface in a direction orthogonal to the surface and generate second input information indicating the detected position, and transitions the image forming apparatus into a first input mode for generating the first input information without generating the second input information and transition the image into a second input mode for generating the second input information without generating the first input information.

Abstract: Disclosed is an image forming system including: an image forming apparatus; and an operation unit communicating wirelessly with the image forming apparatus. The operation unit includes a touch panel display, a first memory temporality storing a first screen image and a second screen image related to the image forming apparatus, a second memory in which the second screen image is stored in advance. When the first screen image transmitted from the image forming apparatus to the operation unit is displayed on the touch panel display, if a first icon on the first screen image is touched, the position of the first icon is transmitted to the image forming apparatus. When the second screen image stored in the second memory is displayed on the touch panel display, if a second icon on the second screen image is touched, a command indicating the second icon is transmitted to the image forming apparatus.

Abstract: Information to be displayed (display information) on a display of an operation unit for use in operating of an image forming apparatus corresponds to each user. Based on a first instruction from the operation unit, the operation unit reads out the display information stored in a second memory provided in the image forming apparatus and stores the display information into a first memory. Based on a second instruction from the operation unit, the display information is transmitted from the operation unit to the image forming apparatus and is stored in the second memory provided in the image forming apparatus.

Abstract: Disclosed is an image forming system including: an image forming apparatus; and an operation unit communicating wirelessly with the image forming apparatus. The operation unit includes a touch panel display, a first memory temporality storing a first screen image and a second screen image related to the image forming apparatus, a second memory in which the second screen image is stored in advance. When the first screen image transmitted from the image forming apparatus to the operation unit is displayed on the touch panel display, if a first icon on the first screen image is touched, the position of the first icon is transmitted to the image forming apparatus. When the second screen image stored in the second memory is displayed on the touch panel display, if a second icon on the second screen image is touched, a command indicating the second icon is transmitted to the image forming apparatus.

Abstract: An image forming apparatus for authenticating a portable terminal by near field wireless communication with the portable terminal includes an image forming portion configured to form an image on a sheet, and an operating portion configured to receive an operation by an operator. The operating portion includes a display panel capable of displaying information on image formation in response to authentication of the portable terminal and includes therein an antenna for establishing the near field wireless communication with the portable terminal. The display panel is capable of displaying a guide screen for guiding an operator so as to hold the portable terminal over the display panel.

Abstract: An input device and an image forming apparatus includes a numerical key unit 70 mountable on an image forming apparatus 1 and capable of inputting information to the image forming apparatus 1, which includes an operating key 100 composed of a hardware key capable of inputting information on at least a numerical value, a connecting cable 75 provided in a casing 70a and USB-connecting the image forming apparatus 1 and the numerical key unit 70, and an external USB port 72 which is provided in the casing 70a, which is capable of being USB-connected to external equipment, and through which the USB-connected external equipment is electrically connectable to the image forming apparatus 1 via the connecting cable 75. The external USB port is disposed on a side surface 70F on a front side than the operating key 100 in a state in which the numerical key unit 70 is mounted on the image forming apparatus 1.

Abstract: An image forming apparatus of the present invention includes a human detection unit configured to detect a human, an operation unit including a display device configured to display an operation screen, a touch panel configured to detect a touch operation of the operation screen, a control unit configured to return the operation unit from a first power state in which the display device does not display the operation screen to a second power state in which the display device displays the operation screen based on a detection result of the human detection unit, and an invalidation unit configured to invalidate a touch operation of the operation screen for a predetermined period after the returning starts.

Abstract: An image forming apparatus of the present invention includes a human detection unit configured to detect a human, an operation unit including a display device configured to display an operation screen, a touch panel configured to detect a touch operation of the operation screen, a control unit configured to return the operation unit from a first power state in which the display device does not display the operation screen to a second power state in which the display device displays the operation screen based on a detection result of the human detection unit, and an invalidation unit configured to invalidate a touch operation of the operation screen for a predetermined period after the returning starts.

Abstract: An image forming apparatus for authenticating a portable terminal by near field wireless communication with the portable terminal includes an image forming portion configured to form an image on a sheet, and an operating portion configured to receive an operation by an operator. The operating portion includes a display panel capable of displaying information on image formation in response to authentication of the portable terminal and includes therein an antenna for establishing the near field wireless communication with the portable terminal. The display panel is capable of displaying a guide screen for guiding an operator so as to hold the portable terminal over the display panel.

Abstract: An image forming apparatus of the present invention includes a human detection unit configured to detect a human, an operation unit including a display device configured to display an operation screen, a touch panel configured to detect a touch operation of the operation screen, a control unit configured to return the operation unit from a first power state in which the display device does not display the operation screen to a second power state in which the display device displays the operation screen based on a detection result of the human detection unit, and an invalidation unit configured to invalidate a touch operation of the operation screen for a predetermined period after the returning starts.

Abstract: A fixing unit includes a current detection portion configured to detect a drive current of a pump unit and determines whether a valve unit is in an abnormal state corresponding to the output of the current detection portion.

Abstract: A fixing device capable of easily detecting a wrap jam of a recording sheet without increasing costs. A fixing roller fixes a toner image on a recording medium under heating control. A central thermistor and an end thermistor detect first and second temperatures of the fixing roller in respective sheet-passing and non-sheet-passing areas. A first temperature difference-detecting circuit compares a temperature difference between the first and second detected temperatures and a first threshold and outputs a first comparison result. A second temperature difference-detecting circuit compares the temperature difference and a second threshold larger than the first threshold and outputs a second comparison result. A switching circuit selects one of the first or second comparison results according to a switching signal from a CPU, and the CPU controls heating of the fixing roller based on the selected comparison result.

Abstract: An image forming apparatus including: a photosensitive member driving unit configured to rotate the photosensitive member; a charge unit having an opening portion and configured to charge the surface of the photosensitive member; a shield member movable between a closed position for closing the opening portion and an open position for opening the opening portion; a shield member driving unit configured to move the shield member between the closed position and the open position; and a control unit configured to control the photosensitive member driving unit to rotate the photosensitive member in a state in which the shield member is situated at the open position, and to prevent the photosensitive member from rotating in a state in which the shield member is situated at the closed position.

Abstract: A fixing unit includes a current detection portion configured to detect a drive current of a pump unit and determines whether a valve unit is in an abnormal state corresponding to the output of the current detection portion.

Abstract: An image forming capable of operating with reliability and shortening the down time. An operation unit forms an image. A power source unit supplies electric power supplied from an external power source to the operation unit. A storing unit stores successful data which shows that the image forming apparatus has started successfully. A mode selection unit selects a first mode in which regular electric power is supplied to the operation unit at a start-up when the storing unit stores the successful data, and a second mode in which electric power smaller than the regular electric power is supplied to the operation unit at the start-up when the storing unit does not store the successful data. A power control unit controls the electric power supplied from the power source unit to the operation unit according to the mode selected by the mode selection unit.