Abstract: A transform spectrometer measurement apparatus and method for a planar waveguide circuit (PLC). The spectrometer typically includes an input optical signal waveguide carrying an input optical signal; a plurality of couplers, each connected to the input optical signal waveguide, and each including a coupler output for carrying a coupled optical signal related to the input optical signal; and an array of interleaved, waveguide Mach-Zehnder interferometers (MZI), each having at least one input MZI waveguide, each MZI input waveguide receiving a coupled optical signal from a respective coupler output. A phase shifting circuit is applied to at least one arm of the MZIs to induce an active phase shift on the arm to thereby measure phase error in the MZIs. Light output from the MZIs is measured under intrinsic phase error conditions and after an active phase shift by the phase shifting circuit.

Abstract: A transform spectrometer measurement apparatus and method for a planar waveguide circuit (PLC). The spectrometer typically includes an input optical signal waveguide carrying an input optical signal; a plurality of couplers, each connected to the input optical signal waveguide, and each including a coupler output for carrying a coupled optical signal related to the input optical signal; and an array of interleaved, waveguide Mach-Zehnder interferometers (MZI), each having at least one input MZI waveguide, each MZI input waveguide receiving a coupled optical signal from a respective coupler output. A phase shifting circuit is applied to at least one arm of the MZIs to induce an active phase shift on the arm to thereby measure phase error in the MZIs. Light output from the MZIs is measured under intrinsic phase error conditions and after an active phase shift by the phase shifting circuit.

Abstract: According to one embodiment, an image data bus transmits image data output from a first section to a second section. A controller adds data for inspection to the image data output from the first section, extracts the data for inspection from the image data received by the second section, and when the extracted data for inspection does not match with predetermined data for inspection, determines that the image data bus is abnormal.

Abstract: According to one embodiment, the control section forms a latent image pattern for detecting malfunction, on each photoconductive drum. The control section determines malfunction of each laser unit based on the detection result of each surface potential sensor with respect to the formed latent image pattern.

Abstract: According to one embodiment, when performing monochrome image forming, image processing circuits for color image forming, laser control circuits for the color image forming and data processing circuits for the color image forming in an integrated circuit are not operated.

Abstract: A flux control apparatus includes an outlet pressure detector for detecting an outlet pressure of a fluid at an outlet of a fluid flow apparatus driven by a drive source for feeding the fluid from an inlet of the fluid flow apparatus and letting the fluid flow out from the outlet of the fluid flow apparatus, a drive amount detector for detecting an amount of drive of the drive source, an estimated flux-calculating apparatus for calculating a flux of the fluid flowing from the fluid flow apparatus as an estimated flux on the basis of the pressure of the fluid and the amount of drive, a control amount-calculating apparatus for calculating an amount of control for the fluid flow apparatus on the basis of the estimated flux and a target flux, and a control apparatus for controlling the drive source on the basis of the amount of control.

Abstract: A controller for a reformer that: changes the supply quantity of at least either one of combustible gas and combustion oxidizing gas supplied to a combustion section; detects a change which is caused in the combustion state of the combustion section as a result of a change of the supply quantity; and checks the combustion state which arose at the combustion section before the change based on the previously detected detection result. Thus, a gone-out state of the combustion section can be reliably judged with a low cost device, and the combustion state of the combustion section in the reformer of a fuel cell system can be adjusted to an optimum combustion state.

Abstract: Failures of respective light emitting elements are detected without printing on a sheet.

Abstract: In a reforming device and a fuel cell system, the ignition and combustion at a burner section is stabilized regardless of the temperature of a reforming section by supplying the burner section with the combustible gas depending on the temperature of the reforming section at the time of a starting operation and after the generation of steam begins at an evaporator section. At the time of a starting operation and after steam generation detecting means detects the generation of steam, a control device of a reforming device executes control to switch the combustions of at least first combustible gas and second combustible gas at the burner section based on the state of the burner section and the temperature of the reforming section at the time of detecting the generation of steam as well as on the temperature of the reforming section after the time subsequent thereto.

Abstract: A timer circuit includes a storage unit to store a series of first data content relating to a time into a specified address area, a target value generation unit to read the first data content from a read address of the storage unit and to generate, as a target value, third data content in which second data content is added to the first data content, a counter to perform counting and to output a count-up signal when the counting is performed up to the target value, and a control unit to sequentially designate a next read address of the storage unit at each count-up and to cause the series of operations of the target value generation unit and the counter to be executed.

Abstract: A control device for a stepping motor of the present invention stores setting data for controlling a state of the stepping motor in a data storage unit for each of a plurality of basic control items obtained by classifying control from activation to stoppage of the stepping motor. In addition, the control device for the stepping motor includes a plurality of modules that execute processing with respect to the basic control items and a module control unit that specifies the order of executing the processing by the plurality of modules in advance, and controls the stepping motor by operating the modules in accordance with the specified executing order based on the setting data stored in the data storage unit.

Abstract: An image forming apparatus of the invention includes plural photoconductive bodies for forming a color image, an exposure unit to scan a laser light in a main scanning direction of each of the plural photoconductive bodies and to perform exposure, and a light amount correction unit to create, for each of the plural photoconductive bodies, light amount correction data for correcting a light amount of the laser light outputted form the exposure unit so that a light receiving sensitivity of each of the plural photoconductive bodies in the main scanning direction becomes uniform, and the light amount correction unit includes a first storage unit to store reference correction data, a second storage unit to store reference correction data, a second the reference correction data is made an absolute amount, by a relative amount correspondingly to each of the plural photoconductive bodies, and a combining unit to combine the reference correction data and the relative correction data to create the light amount correcti

Abstract: A controller for a reformer includes supply quantity changing means for changing the supply quantity of at least either one of combustible gas and combustion oxidizing gas supplied to a combustion section, a combustion state change detecting means for detecting a change which is caused in the combustion state of the combustion section as a result that the change of the supply quantity is brought by the supply quantity changing means, based on a detection result from the combustion state detecting means, and combustion state checking means for checking the combustion state which arose at the combustion section before the change brought by the supply quantity changing means, based on a detection result from the combustion state change detecting means. Thus, the gone-out state of the combustion section can be reliably judged with the construction of a low cost, and the combustion state of the combustion section in the reformer of a fuel cell system can be adjusted to an optimum combustion state.

Abstract: The invention provides a fuel cell starting method and a fuel cell system capable of making an operation starting stable. The fuel cell starting method and the fuel cell system are provided with a reformer 10, a burner 20 and a fuel cell 30 and having step S4 of igniting the burner 20 with combustion fuel and combustion air being supplied thereto and steps S5 to S12 of leading at least a part of generation gas sent from the reformer 10 to the burner 20 while supplying combustion fuel and combustion air to the burner 20. The steps S5 to S12 include steps S8 to S12 for the case that the temperature of the burner before ignition is equal to or lower than 100° C. and steps S7, S9 to S12 of supplying the combustion fuel and the combustion air to make the air ratio smaller than that at the steps S8 to S12 in the case that the temperature of the burner 20 before ignition is higher than 100° C.

Abstract: A timer circuit includes a storage unit to store a series of first data content relating to a time into a specified address area, a target value generation unit to read the first data content from a read address of the storage unit and to generate, as a target value, third data content in which second data content is added to the first data content, a counter to perform counting and to output a count-up signal when the counting is performed up to the target value, and a control unit to sequentially designate a next read address of the storage unit at each count-up and to cause the series of operations of the target value generation unit and the counter to be executed.

Abstract: A fuel cell system is provided with a fuel cell, a reforming section, a burner section and a system controller, wherein in supplying offgas from a fuel pole of the fuel cell to the burner section, the system controller regulates the combustion at the burner section in consideration of the fact that the burner section is supplied with at least one of reforming fuel and combustion fuel which exists in the fuel pole of the fuel cell. Thus, even where the burner section is supplied with combustible fuel which differs from the combustible fuel existing in the fuel pole of the fuel cell, the air-fuel ratio can be maintained adequately, so that the emission of the exhaust gas from the burner section 25 can be prevented from becoming worse.

Abstract: A fuel cell system includes a reformer that generates reformed gas using reforming fuel; a fuel cell that generates electric power using the reformed gas generated by the reformer; and a control device. The control device includes a plurality of different stop control modes for stopping operation of the fuel cell system, and selects a specific stop control mode among the plurality of stop control modes, according to the cause of a malfunction of the fuel cell system.

Abstract: An excitation phase pattern used to manage only the number of phases being excited in W1-2 phase excitation, and an excitation phase pattern used to manage only the number of phases being excited in 2W1-2-phase excitation are generated. The excitation phase patterns thus generated are monitored on the monitor.

Abstract: An image forming apparatus of the invention includes plural photoconductive bodies for forming a color image, an exposure unit to scan a laser light in a main scanning direction of each of the plural photoconductive bodies and to perform exposure, and a light amount correction unit to create, for each of the plural photoconductive bodies, light amount correction data for correcting a light amount of the laser light outputted from the exposure unit so that a light receiving sensitivity of each of the plural photoconductive bodies in the main scanning direction becomes uniform, and the light amount correction unit includes a first storage unit to store reference correction data, a second storage unit to store relative correction data represented, when the reference correction data is made an absolute amount, by a relative amount correspondingly to each of the plural photoconductive bodies, and a combining unit to combine the reference correction data and the relative correction data to create the light amount c

Abstract: A control device for a stepping motor of the present invention stores setting data for controlling a state of the stepping motor in a data storage unit for each of a plurality of basic control items obtained by classifying control from activation to stoppage of the stepping motor. In addition, the control device for the stepping motor includes a plurality of modules that execute processing with respect to the basic control items and a module control unit that specifies the order of executing the processing by the plurality of modules in advance, and controls the stepping motor by operating the modules in accordance with the specified executing order based on the setting data stored in the data storage unit.