摘要:
An object measuring apparatus uses lightwave interference by coherent beams. A single light beam having two lightwave components with a phase difference that changes in time is divided so that one lightwave component is applied to the object and the other lightwave component is applied to a reference surface. The lightwave components for the object and the reference surface are interfered with each other and a change in the interference light is detected.
摘要:
A sheet holding apparatus having: a feeding mechanism to feed a sheet on which an image is formed by an image forming apparatus, from a predetermined feeding position; a tray section having a tray to contain the sheet fed through the feeding mechanism; an initialization mechanism to initialize the tray section; and a control section to make a determination about necessity or unnecessity of an initialization of the tray section and/or a content of the initialization on the basis of information about a position of the tray, which is notified from the image forming apparatus, and to control the initialization of the tray section through the initialization mechanism according to the determination.
摘要:
A sheet finisher includes: a stacking member for aligning a plurality of recording sheets each on which an image has been recorded and for stacking the plurality of recording sheets thereon; a cover sheet feeding member having a cover sheet loading section for loading a cover sheet, for feeding the cover sheet stacked on the cover sheet loading section to the stacking member; a stapling member for stapling the cover sheet and the recording sheets stacked on the stacking member; and a folding member for folding the cover sheet and the recording sheets into two. The cover sheet feeding member, the stacking member and the folding member are substantially vertically arranged in the order from an upper portion to a lower portion of the sheet finisher.
摘要:
Semiconductor-laser length measuring apparatus includes first and second semiconductor lasers that oscillate in different wavelength regions. A frequency modulator modulates the oscillation frequency of the first semiconductor laser and a light beam splitter divides the first and second light beams output from the first and second semiconductor lasers into third, fourth, fifth and sixth light beams which are projected onto and are reflected from an object to be measured. The phase difference between the third and fourth light beams and the phase difference between the fifth and sixth light beams are detected and the difference in optical paths between the divided light beams is obtained according to the detection result. Incremental measurements are performed by obtaining the optical path difference between the divided laser light beams, for example, a difference between a beat signal produced from interference between the third and fourth laser light beams or from interference between the fifth and sixth laser light beams and an oscillation frequency driving the first and second modulators. The apparatus may be arranged to switch to incremental measurement after a measurement of the absolute optical path difference.
摘要:
There is provided a shape measuring apparatus which defines an XYZ-axis coordinate and measures a surface shape of an object, the apparatus including a plurality of probes arranged in a Y-axis direction, the probes contacting a surface of the object, and moving in a Z-axis direction according to the surface shape of the object, a probe holder for holding each of the plurality of probes movable in the Z-axis direction, a moving mechanism for moving the probe holding mechanism in an X-axis direction relative to the object, first and second measuring instruments for measuring positions of each probe in the X-axis and Y-axis directions, a third measuring instrument for measuring a position of each probe in the Z-axis direction; and a computing unit for calculating the surface shape of the object based on measuring results from the first, second, and third measuring instruments.
摘要:
The present invention relates to a sheet finisher, which receives sheets from an image forming apparatus, such as an electro-photographic copying machine, a printer, a facsimile, etc., to align and bind the sheets. There is described a sheet finisher which includes a conveyance roller pair to convey the sheets, an intermediate stacker to stack the sheets, an aligning device to align the sheets stacked on the intermediate stacker, a binder to bind the sheets stacked and aligned on the intermediate stacker, an ejector to convey and eject the sheets bound by the binder, a driver to drive the aligning device, a controller to control the driver and an overlapped sheets conveying device to grip and convey two sheets. In the sheet finisher, the controller controls the driver in a manner such that the aligning device aligns an initial one sheet stacked on the intermediate stacker under a first aligning condition, while the aligning device aligns two overlapped sheets under a second aligning condition.
摘要:
An image forming apparatus that sets an output unit configured by a plurality of pages of which the order is determined as one copy and outputs the a plurality of copies of output units as a JOB includes an image forming unit that sequentially forms images corresponding to the plurality of pages on a plurality of sheets, a control unit that performs a calculation process of image eigenvalues based on the images for each of output units, a first storage unit storing a result of the calculation process performed for a reference copy of the output unit that is a specific one copy out of the plurality of copies of the output units, and a second storage unit storing a result of the calculation process performed for a copy of the output unit other than the reference copy out of the plurality of copies of the output units.
摘要:
Disclosed is an image forming apparatus including: a display section for executing display based on image data including a plurality of images; a first image processing section for generating first images respectively corresponding to the images included in the image data, to which an image process based on information of a job is not executed; a second image processing section for generating a second image obtained by executing the image process based on the information of the job to the image data of the first image currently displayed in the display section; and a control section for causing the display section to display the first image corresponding to the image data to which the job is set and to switch the currently displayed first image to the corresponding second image after completing a generation of the second image by the second image processing section.
摘要:
A conveyor receives and holds a recorded sheet discharged from an image forming apparatus, the sheet is conveyed along a path and another conveyor is provided along the path at a predetermined distance from the first conveyor to further convey the sheet. There is a shifting device between the two conveyors for holding and individually shifting groups each containing a prescribed number of sheets, perpendicularly to the conveying direction of the sheets. There is a delivery tray for receiving the sheets delivered by the other conveyor.
摘要:
An apparatus for measuring a shape, such as a cylindrical shape, and an apparatus for measuring system errors of that apparatus are provided. When a cylindrical light wavefront is made incident on an object to be measured and the shape of the object to be measured is measured by utilizing the interference fringes produced on the basis of a difference between the cylindrical light wavefront and the surface shape of the object to be measured, measurement is conducted at least three times beforehand under different light wavefront incident conditions on the predetermined object to be measured, and the system errors of the entire apparatus are calculated using the interference fringe data obtained in these three measurement operations. The errors generated in subsequent measurement operations can be corrected using the obtained system errors.