TM 5-6676-324-14
(6) Image transfer.
During the image transfer process, the toner image on the drum surface is trans-
ferred to the copy paper. A sheet of paper is brought into contact with the devel-
oper image, and a positive corona discharge is applied to the back of the sheet.
This attracts the toner particles to the paper and holds the paper firmly to the
drum surface. The paper with its adhering toner image is then separated from the
drum and passed to the delivery belts, which transport it to the separation belt, a
non-moving strip of thin plastic that holds a narrow strip of paper clear of the
drum so that the paper can be removed readily, despite the strong attraction to the
drum due to the charge on the back.
(7) Fixing.
The purpose of the fixing stage is to permanently bond the toner image to the page.
This is accomplished by passing the sheet of paper with its toner image between two
heated rollers. The heat melts the resin of the developer, and the rollers press it
on the page. The upper roller that contacts the developer is coated with slippery
teflon to prevent developer from sticking to it. To keep the paper from sticking to
the rollers, a very thin film of silicone oil is applied to the upper roller by a
wick.
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