66results about How to "Real-time modification" patented technology

A method for automatically compensating deactivated printing nozzles by means of a control computer in an inkjet printing machine has the steps of: printing a test form for a certain combination of materials; analyzing the printing of the test form, and constructing a look-up table including the values ​​from 0 to 1 Compensation probability; detecting inactivated printing nozzles; reading the rated droplet size to be compensated at the position of inactivated printing nozzles from the printing data; calculating the local area density at the position of inactivated printing nozzles; reading from the lookup table by calculating the local area density Compensation probability; calculate the pseudo-random number between 0 and 1 for the right and left adjacent pixels of the pixel to be compensated; if the corresponding pseudo-random number of the right and left adjacent pixels of the pixel to be compensated is less than the pseudo-random number read from the lookup table When the compensation probability is reached, increase the drop size of adjacent pixels; calculate the size of all the rated drop points and adjacent drop points to be compensated on the position of the deactivated printing nozzle, and apply the changed drop point size to the printing data; use the changed printing data Execute printing tasks.