Printing method of ink-jet printer

Abstract

The invention provides a printing method of an ink-jet printer. The method comprises the steps that a control system controls a to-be-printed object to continuously rotate and controls a printing trolley to continuously move in a first direction and to jet out a required image or a required text in a to-be-printed area. Specifically, the method comprises the following steps that 1, the boundary dimension of the to-be-printed object is acquired; 2, according to the boundary dimension, a programmable device FPGA calculates the numerical value of the frequency division coefficient N and the numerical value of the frequency multiplication coefficient M independently or through the assistance of an external processor; 3, based on the frequency division coefficient N and the frequency multiplication coefficient M, the programmable device FPGA converts fixed resolution of an encoder into actual image printing resolution; and 4, converted encoder signals are transmitted to a printing control module for printing. By the adoption of the method, the image and the text with consistent resolution and excellent quality can be printed under the condition that the boundary dimensions of the to-be-printed objects are different.

Description

technical field [0001] The invention relates to an inkjet printer printing method, in particular to an inkjet printer printing method applied to objects to be printed (cylinders or cones) of different sizes for image or text printing. Background technique [0002] The simplest method of printing exquisite patterns and characters on curved surfaces in the prior art is to print on a flat carrier, which is combined with the target curved surface. This method is time-consuming and laborious, and the final effect cannot be guaranteed. Chinese patent CN94115805.5 discloses a pattern transfer printing method, which is a printing method for transferring graphic lines on the curved surface of a molded product. Silk cotton paper is used as the transfer paper, and the pattern is printed with high-temperature sublimation air dyeing ink. Treatment, including cleaning, priming, thermal hardening of the primer, induction resin and hardening, and then coating a layer of induction adhesive o...

AI Technical Summary

Problems solved by technology

[0006] When the dimensions of the printing cylinder change, if you use unprocessed or insufficiently processed data for printing, it is easy to print out images with different shades and inconsistent densities. Accumulation of errors may also produce graphics that cannot be connected at the end of the pattern or are deformed; in addition, according to the ignition frequency of the nozzle printing, the size of the object to be printed, the required image printing resolution, and the total number of pulses for one revolution, etc. The parameter can get a theoretical moving speed value of the printing car along the first direction. If the moving speed of the printing car is quite different from it in the actual process, it will affect the printing quality, and even the required graphics cannot be printed.

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