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  2. Toner refill - Wikipedia

    en.wikipedia.org/wiki/Toner_refill

    This enables the cartridge to be reused, saving the cost of a complete new cartridge and the impact of the waste and disposal of the old one. While toner cartridges are commonly refilled with results reported to be good, in at least some cases refilling without full remanufacturing may leave waste toner from each print and paper debris in the ...

  3. Toner cartridge - Wikipedia

    en.wikipedia.org/wiki/Toner_cartridge

    A toner cartridge, also called laser toner, is the consumable component of a laser printer. Toner cartridges contain toner powder, a fine, dry mixture of plastic particles, carbon, and black or other coloring agents that make the actual image on the paper.

  4. Electronic waste - Wikipedia

    en.wikipedia.org/wiki/Electronic_waste

    Uncontrolled burning, disassembly, and disposal has led to a number of environmental problems such as groundwater contamination, atmospheric pollution, and water pollution either by immediate discharge or from surface runoff (especially near coastal areas), as well as health problems including occupational safety and health effects among those ...

  5. LCD projector - Wikipedia

    en.wikipedia.org/wiki/LCD_projector

    Epson owns the technology and has branded it as "3LCD". To market 3LCD projector technology, Epson also set up a consortium called the "3LCD Group" in 2005 with other projector manufacturer licensees of 3LCD technology that use it in their projector models. Early LCD systems were used with existing overhead projectors.

  6. Planned obsolescence - Wikipedia

    en.wikipedia.org/wiki/Planned_obsolescence

    HP class action suit, it was claimed that Hewlett-Packard designed certain inkjet printers and cartridges to shut down on an undisclosed expiration date, and at this point customers were prevented from using the ink that remained in the expired cartridge. HP denied these claims, but agreed to discontinue the use of certain messages, and to make ...

  7. Projector - Wikipedia

    en.wikipedia.org/wiki/Projector

    A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens , but some newer types of projectors can project the image directly, by using lasers .