2. There is a hole in the front of the toner cartridge. In order to prevent forgetting, note the powder outlet with a small note. Open the hole cover. Dump the waste powder.
3. There is also a hole on the side of the selenium drum, which is a powder feeding port. Open the lid and add powder. After adding it, cover it and shake it to make it even.
4. Put it back in the printer and push it to the end. Cover the panel and it's done.
Extended data
scope of business
General business items include: development, production, sales, technical services, engineering installation and maintenance of program-controlled switches, transmission equipment, data communication equipment, broadband multimedia equipment, power supply, wireless communication equipment, microelectronics products, software, system integration engineering, computers and supporting equipment, terminal equipment and related communication information products, data center computer room infrastructure and supporting products (including power supply and distribution, air conditioning and refrigeration equipment, intelligent management and monitoring, etc.). ). Design, integration, operation and maintenance of information system; Design, research and development of integrated circuits; R&D, producing and selling unified communication and collaboration products, servers and supporting software and hardware products, storage devices and related software; R&D, production and sales of wireless data products (excluding restricted items); R&D, which produces and sells communication site computer room infrastructure and communication supporting equipment (including communication site, communication computer room, communication power supply, cabinet, antenna, communication cable, power distribution, intelligent management and monitoring, lithium battery and energy storage system, etc.). ); Energy science and technology research and development, production and sales of energy-related products; R&D, production and sales of products in big data products, Internet of Things and communication related fields; R&D, production, sales and service of auto parts and intelligent systems; Construction engineering; Design, produce, publish and represent all kinds of advertisements; Communication equipment lease (excluding restricted items); Training services; Technical certification service; Information consultation (excluding restricted items); Enterprise management consulting (excluding restricted projects); Import and export business; Domestic commercial and material supply and marketing business (excluding franchised, specially controlled and monopolized goods); Foreign economic and technical cooperation business; Housing rental business (with business license); And other business activities not prohibited by laws and regulations (projects that must be approved according to law can only be carried out after approval by relevant departments). The licensed business items are: value-added telecom business operation.
If the information source is infringed, the contact person will be deleted.