The hottest HP teaches you anti-static

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HP teaches you anti-static

static electricity is a relatively static positive and negative charge on the surface of an object caused by the friction between different objects. For any electronic products, static electricity is the natural enemy. As a kind of precision mechanical equipment, large format printer is particularly vulnerable to static electricity. The generation of static electricity will not only affect the print quality and damage the printer, but also have a certain impact on human health. Therefore, preventing and eliminating static electricity is a necessary work for large format printer users

how is static electricity generated in the application of large format printers? From a macro point of view, the contact, friction and separation between objects, the air in the workshop is too dry and other factors will produce static electricity. In terms of the printing environment, under the same conditions, the lower the humidity, the drier the air, and the higher the electrostatic voltage, the more it will affect the normal operation of the printer. The experiment shows that when the relative humidity of the machine room is 30%, the electrostatic voltage is 5000v; When the relative humidity drops to 5%, the electrostatic voltage will reach 20000V. In terms of large format printers, in addition to environmental factors, the part where the central axis of the machine contacts the paper is the most prone to generate static electricity, especially the paper that has not been treated with anti-static treatment, such as some cheaper plastic based PP photo paper on the market, which is more prone to generate static electricity due to the strong non conductivity of plastic, And with the constant friction, adsorption phenomenon will appear, and more than 60% of the key new material sub industries will reach the domestic advanced level

the harm of static electricity to the output effect of large format printers, machine losses and human health is obvious. Generally speaking, static electricity is easy to interfere with electronic circuits, causing instantaneous changes in potential; Electrostatic discharge can cause failures of electronic equipment, breakdown of integrated circuits and precision electronic components, and lead to component aging; At the same time, static electricity will affect the physical and mental health of operators, resulting in psychological pressure and work efficiency decline. Moreover, serious static electricity can burn the mainboard and circuit of the equipment, causing damage to the printer; It also affects the printing quality, adsorbs ink droplets during the printing process, and makes the printer leak ink; It will also absorb dust, make the paper stick, and affect printing

therefore, the prevention and elimination of static electricity is an important task for large format printer users. With the changes of the market, it is necessary to work. Ensuring the safety of large format printer equipment and machine room is the premise for the smooth operation of large format printer. Users of large format printers should take corresponding measures to prevent the generation of static electricity. For example, reduce the source of static electricity in the equipment configuration of the machine room: 1. Set up a reasonable grounding and shielding system for the machine equipment: grounding is to prevent external electromagnetic interference and improve the reliability of the equipment; Shielding can cut off the invasion of electrostatic noise and weaken electromagnetic interference. 2. The floor of the machine room is the main source of static electricity. Users should ensure that the resistance from the floor surface to the grounding system is between 105 ~ 108 Ω. The lower limit is to ensure the safety resistance against electric shock, and the upper limit is to prevent scratches, scratches and other shortcomings, so as to prevent static electricity from being generated due to excessive resistance. 3. Staff should wear clothes made of materials that are not easy to generate static electricity

in addition, large format printer manufacturers have also done a lot of work in the prevention of static electricity. As the world's most famous printer manufacturer, HP has taken anti-static measures to constantly supervise the circuit design and assembly during the production of large format printers. In addition, the surface of all original media is coated with special anti-static paint. It can be said that HP's original media has undergone rigorous electrostatic test, and its anti-static measures fully comply with international standards, which can ensure the safe use of the equipment. If a compatible medium is used, its quality is difficult to be guaranteed because there is no special coating layer on its surface. Even if some have been tested for static electricity and taken certain measures, it is difficult to fully meet the requirements of HP equipment, and it is easy to generate static electricity during printing. Therefore, to prevent static electricity, users of large format printers must avoid using compatible media

if the use of non-static test verification medium causes damage to machinery and equipment, the cost of maintenance is not a few hundred or thousands of yuan, but tens of thousands of yuan. In order to protect machines and equipment, protect human health, and better work and production, HP suggests: never use compatible media, and the original media is the greatest protection for the interests of users

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