Fujian Coding Machine Manufacturer, Custom Quotation, Suppliers, Hotline Phone: [Wenzhou Kaisyu Machinery Co., Ltd.] The Ink Wheel Coding Machine is suitable for marking surfaces of paper boxes, labels, hangtags, certificates, etc., with embossed or colored printing of production dates, product batches, expiration dates, and quality inspection results. It features automatic sheet separation, automatic counting, random positioning, pre-set print counts, clear embossing, color options, fast printing speed, instant dry, and low waste. The coding machine applies pressure to the ink within the system by controlling an internal gear pump or by supplying compressed air externally, causing the ink to be ejected through a nozzle with a few dozen micrometer aperture. The ejected continuous ink line is split into droplets of the same frequency, size, and spacing by a crystal oscillator signal above the nozzle. The droplets are then charged individually as they pass through a charging electrode, with the amount of charge controlled by the central processing unit (CPU). They are further checked by a detection electrode to ensure the correct charge and phase. The charged droplets are deflected in an electric field created by deflection electrodes and ejected from the nozzle, marking different positions on the product surface to form the required text and patterns. Uncharged droplets are collected into a recovery tray and re-enter the ink circulation system within the machine.