ฉันรักการแปล
Some devices sold as photocopiers have replaced the drum-based process with inkjet or transfer film technology.
Among the key advantages of photocopiers over earlier copying technologies are their ability:
• to use plain (untreated) office paper,
• to implement duplex (or two-sided) printing,
• Able to scan several pages automatically with an ADF, and
• eventually, to sort and/or staple output.
Color photocopiers[edit]
Colored toner became available in the 1950s, although full-color copiers were not commercially available until 3M released the Color-in-Color copier in 1968, which used a dye sublimation process rather than conventional electrostatic technology. The first electrostatic color copier was released by Xerox (the 6500) in 1973. Color photocopying is a concern to governments, as it facilitates counterfeiting currency and other documents: for more information, see Counterfeiting section.