Machines Definition and 203 Threads

  1. Greg Bernhardt

    Greek deity found extensive use in photocopying machines?

    What non-metallic element named for an ancient Greek deity found extensive use in photocopying machines?
  2. R

    Positive and negative charges(mainly relating to copy machines)

    Why is it that black colors create a positive elctrical charge, while white colors send a negative charge? Does it have to do with different wave lengths? When light (in a copy machine) is focused on to the photoconductive drum, why and how does the black color become positively charged? I...
    • RuroumiKenshin
    • Thread
    • Machines Negative Positive Positive and negative
    • Replies: 6
    • Forum: Computing and Technology
  3. R

    Understanding Copy Machines: The Science Behind Positive and Negative Charges

    Why is it that black sends a positive charge through a copy machine while white sends a negative charge? I presume it has something to do with the wave lengths? If you don't know how a copy machine works, consult me. I have an unexplained obssession of learning about copy machines (and it is...