55results about How to "Reliable printing" patented technology

A video buffer that updates and holds an inputted video signal by a unit of a frame image includes: an image data holding unit having a first image data holding unit that holds the latest frame image, a second image data holding unit that holds a second frame image that goes back n pieces of frames in time from the first frame image and a third image data holding unit that holds the third frame image that goes back m pieces of frames in time from the first frame image; a moving picture display unit that displays the latest frame image held in the first image data holding unit; a print data selection unit that selects a frame image stored in any of the first to third image data holding units as a print object; a print confirmation display unit that displays the selected frame image; a print data generation unit that converts the image data of the displayed image into print data and so forth.

The present invention relates to an ink supply method and a printing apparatus by which, when an ink supply operation is repeated by using a gas-liquid separation member, damage to the gas-liquid separation member can be reduced to improve the reliability. In order to realize this, an ink supply method for aspirating air in a sub tank via the gas-liquid separation member to supply ink from a supply opening into the sub tank sets a plurality of different amounts as an suction amount of air in the sub tank per a unit time.

An electrophotographic image forming apparatus is provided which includes an image receptor on which an electrostatic latent image is formed. A developing unit develops the electrostatic latent image by supplying non-magnetic mono-component toner to the electrostatic latent image and includes a developing roller which faces the image receptor. A trail type regulating blade is installed to form a uniform toner layer on the developing roller. In the electrophotographic image forming apparatus, the rate of the amount of toner particles having a diameter of not more than about half of a median value of a volume-diameter distribution of the toner is not more than about 15% in a number-diameter distribution.

A computer program for, or method of, generating 1-bit image data from multiple-bit image data, by a process which comprises the steps of: receiving multiple-bit image data comprising multiple-bit pixel values; and deriving from the multiple-bit pixel values 1-bit image data comprising “on” and “off pixel values, each pixel value of the 1-bit image data corresponding to a pixel of an output medium, which pixel an output device would attempt to mark when printing the 1-bit image data if the pixel value were “on”, the 1-bit image data producing when printed an image constituted by dots, each dot corresponding to a plurality of pixel values of the 1-bit image data, which pixel values correspond to a block of M*N horizontally and / or vertically adjacent pixels of an output is medium, at least one of M and N being greater than one, wherein for at least some of the dots, where M or N is equal to one, a pixel value corresponding to a first or last pixel of a row of horizontally adjacent pixels, or to a first or last pixel of a column of vertically adjacent pixels, is “off, and where both M and N are greater than one, at least one pixel value corresponding to a pixel of a first or last row of horizontally adjacent pixels is “off and / or at least one pixel value 20 corresponding to a pixel of a first or last column of vertically adjacent pixels is “off.

The present invention provides an image forming system in which an image of a document can always be printed in an appropriate position of paper with reliability even when a scanning magnification of the image is changed. The system therefore includes a scanner for scanning a document image to generate an image signal, a printer for forming a copying image on paper in response to the image signal supplied from the scanner, a paper feeding section for feeding the paper to the printer, a magnification setting section for setting a scanning magnification when the scanner scans the document image, and a timing control section for controlling timing of supply of the image signal from the scanner to the printer and / or timing of supply of the paper from the paper feeding section to the printer such that the size of a margin between the leading edge of the paper and that of the copying image formed on the paper is fixed irrespective of the scanning magnification.

A tape-like label forming device is capable of forming a label tape that is made up of a printing tape and a double-sided tape. A temperature-indicating material that changes color in response to changes in ambient temperature is applied to the surface of the printing tape. With this construction, since the color of the temperature-indicating material conceals the colors of the double-sided tape and characters such as letters and symbols printed on the underside of the printing tape, the colors of the characters and the double-sided tape can be freely selected and combined.

The present invention relates to an ink supply method and a printing apparatus by which, when an ink supply operation is repeated by using a gas-liquid separation member, damage to the gas-liquid separation member can be reduced to improve the reliability. In order to realize this, an ink supply method for aspirating air in a sub tank via the gas-liquid separation member to supply ink from a supply opening into the sub tank sets a plurality of different amounts as an suction amount of air in the sub tank per a unit time.

In one embodiment of a print system, a client terminal (10) that generates a print job, a server function portion that stores the print job, a printer (30) that performs pull printing of the print job are connected via the network (40). The print job holds print data and authority information including user information for specifying a user having print authority over the print data. The client terminal (10) is provided with an authority setting means for setting authority information. A server (20) is provided with the server function portion, and is configured to update authority information, identify a user, authenticate whether or not to permit printing based on the authority information and the identification result obtained by a user identification means, and transmit print data.