摘要:
A method and apparatus for producing a document having human-readable content and a position identifying encoding pattern. A printer places text or other content onto a substrate, such as paper, and a filter material application system applies transparent filter material to at least a portion of that content to only modify the reflectivity of the content at a predetermined wavelength. Because the reflectivity of the position identifying encoding pattern remains unchanged, it is distinguishable from the content and can be read at the predetermined wavelength. The position identifying pattern can take a number of forms including a number of dots printed at predetermined positions on the substrate on an imaginary grid.
摘要:
A method of applying content and a data encoding pattern 18 to a product 10 comprises: applying the content 14 to a substrate 12; modifying the reflectivity of the content 14 at a predetermined wavelength; and applying the pattern 18 to the product, wherein the method is such that the pattern can be distinguished from the content at the predetermined wavelength.
摘要:
A product 100 having a data encoding pattern 108 printed on it, the pattern defining a grid having a grid spacing, wherein the grid spacing has discontinuities arranged to compensate for a mismatch between the resolution at which the pattern 108 is printed and a required value for the grid spacing, the discontinuities being irregularly spaced across the product.
摘要:
A product 100 having a data encoding pattern 108 printed on it, the pattern defining a grid having a grid spacing, wherein the grid spacing has discontinuities arranged to compensate for a mismatch between the resolution at which the pattern 108 is printed and a required value for the grid spacing, the discontinuities being irregularly spaced across the product.
摘要:
A method of printing a document containing a printed pattern of position identification pattern markings comprising: providing to a printer a set of print instructions which define the content of a document; generating at the printer a pattern using pattern information that is independent from the print instructions; and printing a document that comprises both the content and the pattern.
摘要:
A job store for a pull-based presentation output system includes a job storage storing one or more jobs from a plurality of job submission clients; and a driver storage storing one or more drivers for converting a job into a format used by a corresponding presentation output device. The job store receives a job from a job submission client, stores the job in the job storage, receives a pull command from a presentation output device when the presentation output device is one of idle and nearly finished with a current job and without receiving further input from a user of the job submission client, retrieves the job from the job storage, applies a driver for converting that job into a format used by the presentation output device sending the pull command and outputs the job to the presentation output device sending the pull command.
摘要:
In a method for operating an ink jet printer with a curved platen the firing of the ink nozzles of the print heal is controlled in a specific way to avoid the effects of misplacement of ink dots on the printing medium due to the curvature of the platen and other effects. The printing of markings on the printing medium is performed in several passes of the print head whereby the medium is advanced between passes. During a pass, central nozzles are fired more often than nozzles at the periphery of the print head because the precision for peripheral nozzles is worse than for central nozzles. Printing during a single pass is thus performed in bands whereby the amount of ink placed in central bands is higher than in peripheral bands.
摘要:
A presentation output system includes a digital computer network, one or more job submission clients, and a job store. The job store accepts and holds output jobs from the plurality of job submission clients. The presentation output system further includes one or more presentation output devices that pull the output jobs from the job store for outputting.
摘要:
Techniques for employing a printing infrastructure to access a presentation device. A presentation system according to the present teachings includes a presentation device with a display and a mechanism for rendering an image on the display in response to a print file. A client system according to the present teachings provides the print file to the presentation device using an existing printing infrastructure, thereby obviating the need for a base computer or specialized client system software.
摘要:
A printhead scans to form marks in a multirow swath on the medium. A mechanism gives relative motion between the head and medium, orthogonal to the scan. Normal advance of the mechanism is at least several rows. There are variants or preferences: in one, the mechanism steps about a row or less to deliberately misalign successive swaths. There is best no associated data shift or normal advance. In another, the step roughly equalizes graininess between image regions with and without normal advance—e.g. between scans near at least one end of a page, to roughly equalize graininess as to swaths near and far from the end. The step best equals different fractions of a row, respectively, between successive swath pairs; these fractions progressively decrease—as e.g. programmed: paperAdvance=Amplitude*cos(Frequency*nPasses+Phase);. Preferably Amplitude is 7; Frequency is 0.2244; nPasses are increments from zero through 7; and Phase is zero. Another variant/preference: steps deliberately misalign successive swaths as to scans far from both page ends. Another has small-amplitude reciprocation—as a vibration or successive alternating-direction offsets. An oscillatory signal is injected into the scan or medium-advance drive signals.