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Performance Testing of Digital Printing Machine
Digital printing machine, alias universal flat-panel printer, can print any material and irregular soft and hard objects(requires the surface drop not exceeding 7mm, otherwise the effect is not good or can not be printed), such as: metal, ceramic, crystal, glass, acrylic, stone, PVC, plastic, toys, USB flash drives, cloth, wood, silicone, leather, etc. Digital printing machine with properties like full-color imaging and precise positioning and zero scrape rate and no need to make film plates, can reduce cost and labor, and improve efficiency because digital printers. High-tech digital printing machine completely replace traditional processes such as screen printing, pad printing, and transfer. They are environmentally friendly products and can be exported. This is the trend of a special printing of products in 2020.
The digital printing machine prints high-quality color images on the surface of the material. It is not necessary to directly contact the items to ensure the integrity of the printed items. Printing and dyeing are performed by the inkjet method, which will not be deformed due to heat and pressure. The direct output printing method by computer requires no preparatory printing work upfront.
The digital printing machine is convenient and fast to print. There are only three printing steps: coating the printed area, printing and drying (or drying) naturally and the operation is so simple that the average person can operate the entire process.
In order to better ensure the working process of digital printing machine, three ways are introduced below. The first is to test accuracy by printing small character. No matter what type of universal flatbed printer, the most basic condition that needs to be possessed is printing accuracy. The method for testing the printing accuracy is as follows: Use the PS print size 3 to print on the whole A4 paper. Clear prints without ghosting or blurring are qualified. If ghosting occurs, the printer is experiencing excessive vibration during printing. This is caused by an irrational structural design that prevents the printer head from operating at a good resolution. The second is to repeat printing test performance.
Inaccurate repeated printing positions will increase the reject rate so it is especially important to choose a printer with stable performance. The method is this: print the tic-tac-toe, repeat printing 10 times, and look at it with a 40-times magnifying glass. If it overlaps, the equipment is qualified. Or directly use the silk screen test method. Print blue dots first, then red on the basis of blue. Look at it with a 40x magnifying glass. If you don't see blue, it means the machine has high accuracy. The last method is to check whether the quadrilateral diagonal has equal length. Within the printer's maximum printable area, print a rectangular border. After printing, use a ruler to measure whether the length of the diagonal is the same. According to the rule of quadrilateral diagonal, if the diagonal is the same length, this is a standard rectangle. If it is not the same length, then it is no longer rectangular, but diamond or trapezoid. If the printed length is not equal, it means that the printed rectangle has been severely misplaced, and the printing accuracy has not reached the qualified requirements.
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