Abstract: Provided is an information processing apparatus including a processor configured to control a system of the information processing apparatus, a power source controller configured to perform control of power supply to the system and to turn off a power source of the power source controller in standby mode in which a power source of the processor is turned off, a memory configured to store information in standby mode, and a power supply unit configured to perform power supply to the memory in standby mode.

Abstract: A speed control portion of a motor driving device performs a deceleration control of decelerating a rotation speed of a driving motor based on a first pulse signal for the deceleration control that includes a plurality of pulses whose pulse width corresponds to each commanded speed to the driving motor. A pulse signal output portion generates the first pulse signal and a second pulse signal and outputs the second pulse signal to the speed control portion after outputting the first pulse signal to the speed control portion, wherein the pulse width of the first pulse signal changes by obeying a predetermined rule that corresponds to a deceleration tendency of the rotation speed during the deceleration control, and the second pulse signal does not obey the predetermined rule. When a determination processing portion determines that the second pulse signal is included in an input signal, the deceleration control is ended.

Abstract: A maintenance system includes an image forming apparatus that performs image formation by a setting depending on the replacement part using a replaceably configured replacement part and a portable terminal that performs near field communication with the portable terminal. The portable terminal includes an image reading part that reads part information of the replacement part from a printed part affixed to the replacement part and a near filed communication part that transmits the part information read by the image reading part via the near filed communication. The image forming apparatus includes a non-contact IC tag in which the part information is written based on power generated from the near filed communication and an reflection processing part that reads the part information from the IC tag at the time of power on and reflects the part information in the setting.

Abstract: Provided is an image forming apparatus that is able to concentrate user access, and maintain a high degree of usability. The image forming apparatus is an image forming apparatus with a short-range wireless communication antenna that includes a main unit that performs image formation, and an operation unit that includes a touch-panel device and that is attached to the front of the main unit. The antenna is located in a space at the top inside a housing of the operation unit where the touch-panel device is not located.

Abstract: Provided is an image forming apparatus that optimizes the operating environment to correspond to a user. The image forming apparatus is capable of operating based on operation instructions received from a portable terminal of the user. The image forming apparatus includes a short-range-wireless-communication unit, an operating-environment-setting unit and an operation panel. The short-range-wireless-communication unit receives personal information data that includes either or both the physical condition and the nationality of the user by short-range wireless communication from the portable terminal. The operating-environment-setting unit sets an operating environment based on the received personal information data. The operation panel displays a display screen on which the operation instruction from the portable terminal is reflected in the set operating environment.

Abstract: Provided is a system that easily retrieves out various data from an image forming apparatus using a portable terminal and uses the various data. The image forming system of the present disclosure is an image forming system including an image forming apparatus that performs image formation and a portable terminal. The image forming apparatus has a non-contact IC tag. The portable terminal includes a selection part that receives selection of a maintenance screen to perform maintenance of the image forming apparatus from plural maintenance screens, a display part that displays the selected maintenance screen, a near field communication part that performs near field communication with the IC tag when the portable terminal comes close to the IC tag, and a control part that performs data communication with the image forming apparatus through the near field communication part.

Abstract: Provided is an image forming apparatus that is able to concentrate user access, and maintain a high degree of usability. The image forming apparatus is an image forming apparatus with a short-range wireless communication antenna that includes a main unit that performs image formation, and an operation unit that includes a touch-panel device and that is attached to the front of the main unit. The antenna is located in a space at the top inside a housing of the operation unit where the touch-panel device is not located.

Abstract: A motor controller (58) according to the present invention includes a pulse width detection portion (595), a speed control portion (591), a pulse width storage portion (596), a same pulse detection portion (597), and a stop processing portion (598). The pulse width detection portion detects the pulse widths of pulses included in the pulse signal. The speed control portion performs: an acceleration control of the drive motor; and a deceleration control of the drive motor. The same pulse detection portion detects, from among the pulses included in the pulse signal inputted during the deceleration control, a pulse in which the pulse width detected by the pulse width detection portion is the same pulse width as the pulse width of an earliest pulse stored in the pulse width storage portion. The stop processing portion stops control of a rotation speed of the drive motor performed by the speed control portion.

Abstract: A motor controller (58) according to the present invention includes a pulse width detection portion (595), a speed control portion (591), a pulse width storage portion (596), a same pulse detection portion (597), and a stop processing portion (598). The pulse width detection portion detects the pulse widths of pulses included in the pulse signal. The speed control portion performs: an acceleration control of the drive motor; and a deceleration control of the drive motor. The same pulse detection portion detects, from among the pulses included in the pulse signal inputted during the deceleration control, a pulse in which the pulse width detected by the pulse width detection portion is the same pulse width as the pulse width of an earliest pulse stored in the pulse width storage portion. The stop processing portion stops control of a rotation speed of the drive motor performed by the speed control portion.

Abstract: An image forming apparatus (100) includes a sheet feed section (120), an image forming section (180), a sheet feed roller (21), a pair of registration rollers (41), a pair of intermediate rollers (31), a first detection section (S1), a control section (10), and a storage section (50). The control section (10) calculates a sheet interval (T1) between a preceding sheet (Pa) and a succeeding sheet (Pb) based on a detection result of the first detection section (S1). The control section (10) determines based on the sheet interval (T1) and an ideal sheet interval (Ta), a second-linear-velocity period (T2) in which either or both a linear velocity (Vs) of the sheet feed roller (21) and a linear velocity (Vm) of the pair of intermediate rollers (31) are adjusted to a second linear velocity (V2).

Abstract: Provided is a system that easily retrieves out various data from an image forming apparatus using a portable terminal and uses the various data. The image forming system of the present disclosure is an image forming system including an image forming apparatus that performs image formation and a portable terminal. The image forming apparatus has a non-contact IC tag. The portable terminal includes a selection part that receives selection of a maintenance screen to perform maintenance of the image forming apparatus from plural maintenance screens, a display part that displays the selected maintenance screen, a near field communication part that performs near field communication with the IC tag when the portable terminal comes close to the IC tag, and a control part that performs data communication with the image forming apparatus through the near field communication part.

Abstract: A maintenance system includes an image forming apparatus that performs image formation by a setting depending on the replacement part using a replaceably configured replacement part and a portable terminal that performs near field communication with the portable terminal. The portable terminal includes an image reading part that reads part information of the replacement part from a printed part affixed to the replacement part and a near filed communication part that transmits the part information read by the image reading part via the near filed communication. The image forming apparatus includes a non-contact IC tag in which the part information is written based on power generated from the near filed communication and an reflection processing part that reads the part information from the IC tag at the time of power on and reflects the part information in the setting.

Abstract: A speed control portion of a motor driving device performs a deceleration control of decelerating a rotation speed of a driving motor based on a first pulse signal for the deceleration control that includes a plurality of pulses whose pulse width corresponds to each commanded speed to the driving motor. A pulse signal output portion generates the first pulse signal and a second pulse signal and outputs the second pulse signal to the speed control portion after outputting the first pulse signal to the speed control portion, wherein the pulse width of the first pulse signal changes by obeying a predetermined rule that corresponds to a deceleration tendency of the rotation speed during the deceleration control, and the second pulse signal does not obey the predetermined rule. When a determination processing portion determines that the second pulse signal is included in an input signal, the deceleration control is ended.

Abstract: An image forming apparatus (100) includes a sheet feed section (120), an image forming section (180), a sheet feed roller (21), a pair of registration rollers (41), a pair of intermediate rollers (31), a first detection section (S1), a control section (10), and a storage section (50). The control section (10) calculates a sheet interval (T1) between a preceding sheet (Pa) and a succeeding sheet (Pb) based on a detection result of the first detection section (S1). The control section (10) determines based on the sheet interval (T1) and an ideal sheet interval (Ta), a second-linear-velocity period (T2) in which either or both a linear velocity (Vs) of the sheet feed roller (21) and a linear velocity (Vm) of the pair of intermediate rollers (31) are adjusted to a second linear velocity (V2).

Abstract: A measuring apparatus includes a sensor unit that includes a coil and a conductive cylinder arranged such that an area of an overlap zone varies as a position of an object changes; a capacitor and a resistor that make up a series circuit with the coil; a voltage applier that applies an input voltage Vi to the series circuit; a phase detector that detects a phase of a voltage Vo across the capacitor; a magnitude detector that detects a magnitude of the voltage Vo; feature data in which the phase, the magnitude, a temperature of the sensor unit, and an area of the overlap zone are associated with one another; and a calculator that calculates the temperature and the area based on the feature data using the phase and the magnitude detected by actual measurement of the voltage Vo.

Abstract: Provided is an information processing apparatus including a processor configured to control a system of the information processing apparatus, a power source controller configured to perform control of power supply to the system and to turn off a power source of the power source controller in standby mode in which a power source of the processor is turned off, a memory configured to store information in standby mode, and a power supply unit configured to perform power supply to the memory in standby mode.

Abstract: An image forming apparatus includes an exposing section, a pulse generating section, a frequency storing section, an emission control section, a smoothing section, and a driving-current generating section. The pulse generating section generates a periodic pulse signal indicating light amount of light beam emitted by a light source of the exposing section. The frequency storing section stores in advance a plurality of frequencies of the pulse signal. The emission control section selects, in the rendering of each main scanning line, any one of the plurality of frequencies and instructs the pulse generating section to generate the pulse signal having the selected frequency. The smoothing section smoothes the pulse signal generated by the pulse generating section according to the instruction of the emission control section and generates analog signal. The driving-current generating section generates driving current for the light source of the exposing section on the basis of the analog signal.

Abstract: Image forming apparatus includes elements as follows. Light-amount storing section stores, in the main scanning line divided into a plurality of blocks, light amounts of a light beam irradiated on the blocks. Change-data storing section stores a plurality of change data items set in the vicinity of each of block boundaries of the plurality of blocks. The plurality of change data items are used to cope with each of a plurality of events that are likely to affect the image quality in the vicinity of the block boundary. Irradiation control section selects, out of the plurality of change data items, change data for coping with an event selected out of the plurality of events and instructs Pulse generating section to generate, in the vicinity of the block boundary, pulse signal from which analog signal indicating a change in a value represented by the selected change data is obtained.

Abstract: An image forming apparatus includes a photosensitive body, an exposure unit, a pulse generating unit, a smoothing unit, a drive current generating unit, and a second emitting control unit. The exposure unit includes a light source for emitting a light beam, and causes the light beam emitted from the light source to perform scanning in a main scanning direction, thereby drawing a main scanning line on the photosensitive body. The second emitting control unit causes the light source to emit the light beam, in an APC period of automatically controlling the light quantity of the light beam, by causing the pulse generating unit to generate a pulse signal having a duty ratio of 100 percent, causing the smoothing unit to smooth the pulse signal thereby generating an analog signal, and causing the drive current generating unit to generate a drive current based on the analog signal.

Abstract: A measuring apparatus includes a sensor unit that includes a coil and a conductive cylinder arranged such that an area of an overlap zone varies as a position of an object changes; a capacitor and a resistor that make up a series circuit with the coil; a voltage applier that applies an input voltage Vi to the series circuit; a phase detector that detects a phase of a voltage Vo across the capacitor; a magnitude detector that detects a magnitude of the voltage Vo; feature data in which the phase, the magnitude, a temperature of the sensor unit, and an area of the overlap zone are associated with one another; and a calculator that calculates the temperature and the area based on the feature data using the phase and the magnitude detected by actual measurement of the voltage Vo.