In the process of use, printers, fax machines, all-in-one machines, photocopiers, etc. It mainly produces ozone, dust, noise and electromagnetic interference.
According to experts, the proportion of ozone produced by laser printers, copiers and all-in-one machines during use is 1? 65 times, not easy to flow. Ozone is a strong oxidant with high content in the air, which will do harm to human body. Ozone can increase tetraenoic acid in the process of lipid peroxidation of human respiratory epithelial cells, and then cause inflammatory lesions of upper respiratory tract. Long-term exposure to a certain concentration of ozone is prone to secondary upper respiratory tract infection. When the ozone concentration is 2 ppm, respiratory irritation, cough and headache may occur after short-term exposure. Foreign body dust and a small amount of harmful gases such as styrene generated during use will stimulate the respiratory tract at high temperature and high speed, causing upper respiratory tract inflammation such as rhinitis, pharyngitis and bronchitis. At the same time, productive dust can also irritate the skin, causing diseases such as xerosis cutis, folliculitis and pyoderma. Long-term exposure will endanger the health of users. At the same time, these office equipment will consume a lot of energy even if it is in standby state for a long time. Harm of electromagnetic waves: If you are disturbed for a long time, you will feel tired, tired eyes, shoulder pain, headache, drowsiness and anxiety. Electromagnetic interference will also reduce people's immune function and calcium in the human body.
Modern office equipment such as printers contains many harmful substances, such as printing plates, liquid crystals and other components containing harmful metals such as mercury, cadmium and hexavalent chromium. Contact and inhalation of these harmful substances can cause lung injury and tumor. When PVC is contained in the plastic used for manufacturing printers, dioxin, a strong carcinogen, will be produced. When the content of harmful substances in the ink of the inkjet printer is high, it is also harmful for the user to inhale the ink atomized gas generated during printing and contact with the printed manuscript. The relevant agencies of the State Environmental Protection Administration set an upper limit for ozone, dust, styrene concentration and working noise generated in the use of modern office equipment with reference to the technical requirements for certification of environmental labeling products formulated by relevant standards in Germany and Northern Europe, made a detailed description of equipment packaging, plastics, ink cartridges, batteries, etc., and put forward specific standards for environmental design, disassembly, recycling and information disclosure of equipment, making it clear that components containing harmful substances must be marked.
The Printing and Image Application Branch of China Computer Users Association, which participated in the formulation of the standard, said that although the technical requirements of the certification are not mandatory environmental protection standards, it will play a strong guiding role in the production of these products manufacturers and the purchase of users, and help eliminate the harm of modern office equipment such as printers to environmental protection from the source of production.