The printhead is the heart of a wide-format inkjet printer. If there is a problem with the printhead, the entire machine will not work properly. Therefore, be sure to protect the print head when using the printer. So what conditions will affect the normal use of the print head? Today, I will come to give you a glimpse!
First, the airtightness between the ink cartridge, the ink tube, and the printhead.
I have previously talked about the inkjet principle of inkjet printers. Everyone knows that the printer printhead is controlled by the microvoltage change of the negative pressure system to control the ink output. To make the nozzle smoothly ink, it is necessary to ensure the inkjet system. Absolutely sealed. When the voltage is increased, the pressure of the micro-voltage to the ink tube will increase, and a pressure difference will be formed inside and outside the ink tube, and the ink will be pressed from the ink cartridge into the ink tube to the print head. If the inkjet system leaks, the negative pressure system can’t play its due role. If the ink can’t reach the print head, the print head will naturally not emit ink!
Second, the ink cartridge is leaking.
A small amount of air is always present in the upper part of the print cartridge connected to the continuous ink supply system, in order to avoid the phenomenon of ink self-flow caused by the siphon principle. However, if there is an air section in the entire inking line, it is caused by the air leakage of the ink cartridge or the unsealing of the ink injection elbow interface, so the air leakage of the ink cartridge may cause the ink to be discharged or the ink drop.
Third, improper operation.
The ink from the print head ejects ink through its orifice. Since this orifice is small, it may be clogged or damaged with carelessness.
During the printing process, some materials have poor adhesion, and we use a fixing agent to enhance their adhesion. Fixing agent is a very viscous solvent. Once it sticks to the nozzle, the nozzle will be blocked or directly scrapped, which will not work properly.
Fourth, the impact of external factors.
For example, when carrying or using a printer, the machine is hit by an external force, causing the printer to not work properly.
1. When using the sublimation inkjet printer, remember to follow the printer instructions strictly!
2. When the printer can’t print normally, don’t panic. Check carefully whether the printer spare parts are in good condition and make other judgments!