Abstract: An inkjet printer is provided that includes a control device configured to determine an ink discharge moment when an inkjet head discharges an ink droplet from nozzles while moving within at least one of a acceleration range to accelerate the inkjet head and a deceleration range to decelerate the inkjet head, based on a distance between an ink discharge surface of the inkjet head and a recording sheet held in a predetermined wave shape and an amount of change in a moving velocity of the inkjet head.

Abstract: A multifunction device including an image recording unit and a scanner unit is provided. The scanner unit includes an image readable plane. The image recording unit includes a first tray, a conveyer path to convey the recording sheet in a first orientation, and a second tray, which is formed along an edge of an opening formed on the front face, and in which the recording sheet having been conveyed in the conveyer path is disposed. The recording sheet in a maximum conveyable size for the conveyer path is disposed to occupy a discharge area in the second tray. A downstream end of the discharge area along a second orientation is in a displaced and downstream position with respect to a downstream end of an image readable area of the image readable plane along the second orientation for a first distance.

Abstract: A power supply system includes a switching power supply configured to rectify and smooth an AC voltage of an AC power to generate a DC voltage, a controller configured to control the switching power supply to start or stop operating, and a low-capacity power supply comprising a power supply capacity smaller than that of the switching power supply. The low-capacity power supply is configured to supply power to the controller. The power supply system can further include a detecting circuit configured to detect an output voltage of the low-capacity power supply, and a permission circuit configured to permit a startup of the switching power supply when the output voltage detected by the detecting circuit is greater than or equal to a predetermined value.

Abstract: A power supply system includes: a switching power supply configured to rectify and smooth an alternating current voltage of an alternating current power supply and generate a direct current voltage; a small-capacity power supply having a power supply capacity smaller than a power supply capacity of the switching power supply; a sensor configured to output a detection voltage corresponding to a detection target; and a control device. The control device comprises: a reference voltage generation circuit configured to be fed with power from the small-capacity power supply and generate a reference voltage, a comparison circuit configured to compare the detection voltage output from the sensor with the reference voltage and generate a comparison voltage corresponding to the comparison result of the comparison circuit, and a monitoring unit configured to monitor the detection target based on the comparison voltage during the switching power supply is stopped.

Abstract: A power supply system includes: a switching power supply configured to rectify and smooth an alternating current voltage of an alternating current power supply and generate a direct current voltage; a small-capacity power supply having a power supply capacity smaller than a power supply capacity of the switching power supply; a sensor configured to output a detection voltage corresponding to a detection target; and a control device. The control device comprises: a reference voltage generation circuit configured to be fed with power from the small-capacity power supply and generate a reference voltage, a comparison circuit configured to compare the detection voltage output from the sensor with the reference voltage and generate a comparison voltage corresponding to the comparison result of the comparison circuit, and a monitoring unit configured to monitor the detection target based on the comparison voltage during the switching power supply is stopped.

Abstract: A power supply system includes a switching power supply configured to rectify and smooth an AC voltage of an AC power to generate a DC voltage, a controller configured to control the switching power supply to start or stop operating, and a low-capacity power supply comprising a power supply capacity smaller than that of the switching power supply. The low-capacity power supply is configured to supply power to the controller. The power supply system can further include a detecting circuit configured to detect an output voltage of the low-capacity power supply, and a permission circuit configured to permit a startup of the switching power supply when the output voltage detected by the detecting circuit is greater than or equal to a predetermined value.

Abstract: A liquid ejecting device has a liquid ejecting head to eject ink to a sheet-like object, a carriage mounting the liquid ejecting head, a conveying device which conveys the sheet-like object with holding the sheet-like object to have a corrugated shape having a corrugated cross-section in the scanning direction, a detecting unit which detects an end portion of the sheet-like object in the scanning direction, and a processor. The processor is configured to execute instructions to provide an ejection timing determining unit configured to determine an ejection timing at which the liquid is ejected from the liquid ejecting head in accordance with positional information representing the end portion detected by the detecting unit and reference information, and an ejection control unit configured to control the liquid ejecting head and the carriage to eject the liquid from the liquid ejecting head at the timing determined by the ejection timing determining unit.

Abstract: A recording apparatus has a cartridge installing section including a case which is formed with an opening and which is configured to receive printing fluid cartridges respectively via the opening; a flat plate-shaped lid which has a rotational shaft and which undergoes posture change to a closed posture and an open posture by being rotated around the rotational shaft. The lid has a curved section which is disposed on a side of one end in a widthwise direction along the rotational shaft and which is curved so that the one end is directed to a side of the ending surface of the case in a state in which the lid is in the closed posture; and the curved section is upstanding upwardly from a side of a bottom surface of the case in a state in which the lid is in the open posture.

Abstract: An image forming apparatus includes: a carrier, a power unit, a switch, and a controller. The carrier is configured to carry a recording medium. The power unit is configured to provide drive power to the carrier. The switch is configured to switch an operation state of the carrier between an ON state and an OFF state of a transmission of the drive power from the power unit to the carrier. The controller is configured to provide a control power to control the switch such that the control power is reduced after switching from the OFF state to the ON state.

Abstract: An inkjet printer is provided that includes a control device configured to determine an ink discharge moment when an inkjet head discharges an ink droplet from nozzles while moving within at least one of a acceleration range to accelerate the inkjet head and a deceleration range to decelerate the inkjet head, based on a distance between an ink discharge surface of the inkjet head and a recording sheet held in a predetermined wave shape and an amount of change in a moving velocity of the inkjet head.

Abstract: An image forming apparatus includes: a light source that emits a light beam; a photosensitive member; a brushless motor including a stator where a plurality of coils are placed and a rotor where a plurality of magnets are placed; a rotary polygon mirror, which is rotated by the brushless motor, and which periodically deflects the light beam emitted from the light source to sequentially form scanning lines on the photosensitive member; an energization switching unit that turns on and off energizations of the coils; a voltage detecting unit that outputs a detection signal based on induced voltages that are generated in the coils by rotation of the rotor; and a control unit that controls turning on/off of the energizations by the energization switching unit based on the detection signal.

Abstract: An image forming apparatus includes: a light source; a brushless motor including a stator and a rotor; a rotary polygon mirror rotated by the brushless motor to form scanning lines on a photosensitive member; an energization switching unit turning on/off energizations of the coils; a voltage detecting unit outputting a detection signal based on induced voltages generated in coils of the stator by rotation of the rotor; a motor controlling unit turning on/off of the energizations by the energization switching unit based on the detection signal; an electric component that operates during formation of the scanning lines; and a power supply controlling unit which, in a detecting period of the detection signal for starting a rotation control of the brushless motor, reduces an amount of electric power supplied to the electric component to less than in a period of the formation of scanning lines after the detecting period.

Abstract: An image forming apparatus may includes a central processing device, a first switching regulator and a second switching regulator. The central processing device may perform information processing associated with image formation. The first switching regulator may receive an input of a first voltage and output a second voltage which is lower than the first voltage. The second switching regulator may receive an input of the second voltage and output a third voltage which is lower than the second voltage. The third voltage may be input to the central processing device. A first switching frequency which is a switching frequency of the first switching regulator may be lower than a second switching firequency which is a switching frequency of the second switching regulator.

Abstract: An image forming apparatus may be configured to enter a first state where electric power is supplied from a power supply and a second state where no electric power is supplied from the power supply. A capacitor may be connected to the power supply, and may be charged by the power supply in the first state. A controller may be connected to the capacitor, and may operate with electric power supplied from the capacitor in the second state. The controller may operate with electric power supplied from the power supply in the first state. The controller may cause the image forming apparatus to enter the first state upon detecting that the image forming apparatus is in a predetermined state. The controller may acquire the related information and may cause the image forming apparatus to enter the second state.

Abstract: An image forming apparatus includes: a light source; a light-source driving unit; a photosensitive member including an image forming region; a determining unit determining a level of a rotation speed of the photosensitive member; a scanner unit exposing the photosensitive member by deflecting the light beam from the light source by a deflecting unit; a sensor receiving the light beam and outputs a detection signal; and a control unit controlling the image forming apparatus based on the detection signal output from the sensor. When the determining unit determines that the rotation speed is low, the light-source driving unit is configured to drive the light source to emit the light beam when a deflecting direction of the light beam is oriented toward the sensor and not to drive the light source to emit the light beam when the deflecting direction of the light beam is oriented toward the image forming region.

Abstract: A recording apparatus has a cartridge installing section including a case which is formed with an opening and which is configured to receive printing fluid cartridges respectively via the opening; a flat plate-shaped lid which has a rotational shaft and which undergoes posture change to a closed posture and an open posture by being rotated around the rotational shaft. The lid has a curved section which is disposed on a side of one end in a widthwise direction along the rotational shaft and which is curved so that the one end is directed to a side of the ending surface of the case in a state in which the lid is in the closed posture; and the curved section is upstanding upwardly from a side of a bottom surface of the case in a state in which the lid is in the open posture.

Abstract: A multifunction device including an image recording unit and a scanner unit is provided. The scanner unit includes an image readable plane. The image recording unit includes a first tray, a conveyer path to convey the recording sheet in a first orientation, and a second tray, which is formed along an edge of an opening formed on the front face, and in which the recording sheet having been conveyed in the conveyer path is disposed. The recording sheet in a maximum conveyable size for the conveyer path is disposed to occupy a discharge area in the second tray. A downstream end of the discharge area along a second orientation is in a displaced and downstream position with respect to a downstream end of an image readable area of the image readable plane along the second orientation for a first distance.

Abstract: An image forming apparatus includes: a light source that emits a light beam; a photosensitive member; a driving motor; a rotary polygon mirror, which is rotated by the driving motor, and which periodically deflects the light beam emitted from the light source to sequentially form scanning lines on the photosensitive member; a position detecting unit, which detects a rotational position of the driving motor, and which outputs a detection signal; a sensor, which receives the light beam deflected by the rotary polygon mirror, and which outputs a light receiving signal; a detecting unit, which receives the detection signal and the light receiving signal, and which detects a rotation direction of the driving motor based on a timing pattern of a detection of the rotational position of the driving motor and a reception of the light beam by the sensor.

Abstract: A humidity detecting device includes a humidity sensor, which detects humidity using a change in an impedance by humidity, and which generates a humidity detection signal according to application of an AC voltage, a detecting unit that detects the impedance of the humidity sensor based on the humidity detection signal, a switching unit that switches a frequency of the AC voltage to at least a first frequency and a second frequency, the humidity sensor being a first impedance at the first frequency and a second impedance at the second frequency, a temperature sensor that detects ambient temperature of the humidity sensor, a calculating unit that calculates a difference and/or a change rate between the first impedance and the second impedance, a discriminating unit that discriminates the humidity sensor based on the difference and/or the change rate, and a control unit that performs processing corresponding to the discriminated humidity sensor.

Abstract: An image forming apparatus is provided. The image forming apparatus includes a light emitter which emits light; a drive section which drives the light emitter according to a control signal; a light amount detection section which detects an amount of light which is emitted from the light emitter; an analog to digital converter which converts the amount of light into a digital value; a feedback controller which controls the control signal based on the digital value and a reference value, and outputs the control signal to the drive section; and a setting change section which sets a change unit used by the feedback controller to control the control signal.