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Marking inkjet printing method

An inkjet printing and algorithm technology, applied in the copy/marking method, digital output to the printing unit, printing, etc., can solve problems such as indistinguishability, and achieve the effect of enhancing data security and reducing the risk of theft

Active Publication Date: 2014-05-28
SHENZHEN JUDING MEDICAL DEVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the commonality and uniformity of the printed documents, there is no distinction between printed original and copied documents, printed original and printed according to the original document printing process
In the existing technology, fluorescent ink, two-dimensional code, copy interference, embedded information and other methods are used, but none of them can solve this problem well

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 2

[0041] Print out a 4800*1200dpi, 12inch*12inch grayscale image, and add ordinary fluorescent ink to the gray pixels in the entire image.

[0042] The printer used is a HP B8850 printer with a maximum resolution of 4800*1200dpi and 8 ink cartridges. The ink cartridges are numbered A, B, C, D, E, F, and G, H respectively correspond to the 8 printing modules on the print head. Among them, the ink cartridges numbered A, B, C, and D were filled with black ink with concentrations of 25%, 50%, 75%, and 100% respectively, and the ink cartridge numbered E was filled with ordinary fluorescent ink, and the remaining three ink cartridges were not used. Choose thick coated paper as the printing medium.

[0043] Step 1: First convert the grayscale image of 4800dpi*1200dpi, 12inch*12inch into BMP format;

[0044] Step 2: Perform color separation processing on the BMP format file. Grayscale image 0-255 grayscale corresponds to ink concentration of 0-100%. By calculating the concentrati...

specific Embodiment 3

[0047] Convert a 2880*1440dpi, 12inch*12inch color picture into a grayscale picture and print it out, add 75% and 100% of the ink dots to mark with ultraviolet fluorescent ink, convert the printing time into a QR code and mark it with ordinary fluorescent ink.

[0048] The printer used is an Epson 4910 printer with a maximum resolution of 2880*1440dpi and 11 ink cartridges. The ink cartridges are numbered A, B, C, D, E, F, and G, H, I, J, and K respectively correspond to the 11 printing modules on the print head. The ink cartridges numbered A, B, C, and D are filled with black ink with concentrations of 25%, 50%, 75%, and 100% respectively, the ink cartridge numbered E is filled with ultraviolet fluorescent ink, and the ink cartridge numbered F is filled with ordinary fluorescent ink. ink, and the remaining five ink cartridges are unused. Print media choose high-grade photo glossy paper.

[0049] Step 1: First convert the 2880*1440dpi, 12inch*12inch color picture into EM...

specific Embodiment 4

[0053] Enlarge a 1200*600dpi, 6inch*6inch color picture to 12inch*12inch and print it out, add ultraviolet fluorescent ink to mark all the pixels, convert the printed page number into a watermark and mark it with ordinary fluorescent ink.

[0054] The printer used is a Canon iPF 5100 printer with a maximum resolution of 2400*1200dpi and 12 ink cartridges. The ink cartridges are numbered A, B, C, D, E, F, and G, H, I, J, K, and L respectively correspond to the 12 printing modules on the print head. Among them, ink cartridges numbered A, B, C, and D are filled with magenta, blue, yellow, and black inks of four different colors, ink cartridges numbered E are filled with ultraviolet fluorescent inks, and ink cartridges numbered F are filled with ordinary fluorescent inks , and the remaining six cartridges are unused. Black and white video film is selected as the printing medium.

[0055] Step 1: First convert the 1200*600dpi, 6inch*6inch color picture into JPEG format, and t...

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PUM

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Abstract

The invention relates to a marking inkjet printing method. By adding marker data files during marking inkjet printing, security of printing operational data files is improved; meanwhile, printing original documents can be more recognizable.

Description

technical field [0001] The present invention relates to a method of inkjet printing with markings. Background technique [0002] The existing printing process is generally as follows: the content to be printed is converted into a data format recognizable by the printer, the computer sends the data file to the printer, and the printer completes the printing task. The data format of the print job file that the printing process puts in the spooling queue, often referred to as the print job data format. Instead, its files are called print job files. There are usually three types of print job data formats: EMF, RAW, and TEXT. [0003] Since the format of the print file is fixed, the print file can be obtained through a corresponding acquisition technology, which reduces the security of printing. Among the existing acquisition technologies, the common ones are to obtain the print content by using the in-process injection (Hook) technology, by using the injection (Hook) technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/12B41M5/00
Inventor 郑少逵
Owner SHENZHEN JUDING MEDICAL DEVICE
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