Abstract: A three-dimensional measurement device performs three-dimensional measurement of a measured object using a phase shift method. The three-dimensional measurement device includes: an irradiator that irradiates the measured object with a predetermined light pattern having a light intensity distribution in a fringe shape; a control device that shifts a phase of the light pattern radiated from the irradiator in N different ways, where N is a natural number of not less than 3; and an imaging device that takes an image of the measured object irradiated with the light pattern. The control device executes three-dimensional measurement of the measured object by the phase shift method based on N different image data taken under the light pattern having the phase shifted in the N different ways.

Abstract: Each unit of an inkjet printing station includes chains arranged along a transportation path of a web paper. A holding mechanism is fixedly arranged on the chain. The holding mechanism holds both ends of a paper passing bar to which the web paper is attached. Driving the chain with a handle causes the holding mechanism to move. The paper passing bar is delivered between the units adjoining each other. Therefore, the paper passing bar is movable from one end to the other end of the inkjet printing station formed by the units. Moreover, when specifications are changed for changing combination of the units, the combination can be made optionally.

Abstract: Each unit of an inkjet printing station includes chains arranged along a transportation path of a web paper. A holding mechanism is fixedly arranged on the chain. The holding mechanism holds both ends of a paper passing bar to which the web paper is attached. Driving the chain with a handle causes the holding mechanism to move. The paper passing bar is delivered between the units adjoining each other. Therefore, the paper passing bar is movable from one end to the other end of the inkjet printing station formed by the units. Moreover, when specifications are changed for changing combination of the units, the combination can be made optionally.

Abstract: A printing apparatus records a predetermined test pattern on printing paper, and reads the test pattern by means of a scanner. The scanner reads the test pattern at a resolution lower than the resolution of a recording head. This allows the automatic and fast reading of the test pattern. Additionally, the printing apparatus performs an interpolation process on read data, and judges whether there is an abnormality in nozzles or not, based on the read data subjected to the interpolation process. This reproduces the positions of and spacing between lines recorded on the printing paper with high accuracy to achieve the exact judgment as to whether there is an abnormality in the nozzles or not. Therefore, an inspection with a high degree of reliability is accomplished.

Abstract: In a patch measurement device, a data storage section stores printed-image data including a control strip on a printed material. Based on the pixel values constituting printed-image data stored in the data storage section, a patch position detection section detects the position of a patch. A color density measurement section measures the color density of the patch whose position has been detected by the patch position detection section. A correlation coefficient ?m between a key pattern x and subject data y which is calculated by a reference mark detection section is represented as ?m=([x]*[y])?([x]?1*[y]), where [x]*[y] is a sum of multiplication products of corresponding elements of the two matrices. Matrix [x]?1 represents an inverted pattern of the key pattern x.

Abstract: A printing apparatus records a predetermined test pattern on printing paper, and reads the test pattern by means of a scanner. The scanner reads the test pattern at a resolution lower than the resolution of a recording head. This allows the automatic and fast reading of the test pattern. Additionally, the printing apparatus performs an interpolation process on read data, and judges whether there is an abnormality in nozzles or not, based on the read data subjected to the interpolation process. This reproduces the positions of and spacing between lines recorded on the printing paper with high accuracy to achieve the exact judgment as to whether there is an abnormality in the nozzles or not. Therefore, an inspection with a high degree of reliability is accomplished.

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out.

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out.

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out.

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out.

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out.

Abstract: In a patch measurement device, a data storage section stores printed-image data including a control strip on a printed material. Based on the pixel values constituting printed-image data stored in the data storage section, a patch position detection section detects the position of a patch. A color density measurement section measures the color density of the patch whose position has been detected by the patch position detection section. A correlation coefficient &rgr;m between a key pattern x and subject data y which is calculated by a reference mark detection section is represented as &rgr;m=([x]*[y])−([x]−1*[y]), where [x]*[y] is a sum of multiplication products of corresponding elements of the two matrices. Matrix [x]−1 represents an inverted pattern of the key pattern x.

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out.

Abstract: A heat treatment apparatus for semiconductor wafers includes a reaction chamber, a heater, a heat-insulating member, a first cooling gas path, a second cooling gas path, a blower and a controller. The reaction chamber houses semiconductor wafers. The heater is provided outside the reaction chamber to heat it. The heat-insulating member is provided outside the heater to keep the temperature of the reaction chamber. The first cooling gas path is interposed between the reaction chamber and heater, while the second cooling gas path is disposed between the heater and heat-insulating member. The blower allows gas to flow through the first and second gas paths to cool the reaction chamber. The controller controls the heater to increase the temperature of the reaction chamber and does the blower to decrease the temperature thereof.