Hi Charles.

26-Jun-03 12:51:00, Charles Angelich wrote to Wayne Chirnside


 CA> 1237be5ad560 tech

 CA> Hello Wayne -

 CA>>> Logic tells me there is no light sensitive drum in a laser
 CA>>> printer but I can't prove it right now.

 WC>> I'm not clear on their operation myself. A quick intenet search
 WC>> on appropriate keywords would fix that. Actually I believe there
 WC>> is a light sensitive drum. I'm thinking the drum is charged by
 WC>> the corona wire mentioned here a number of times and light is

 WC>> used to discharge that part of the drum where you didn't used
 WC>> to discharge want

 WC>> toner to adhere leaving only that which retained a charge to
 WC>> carry toner to the print paper?

 CA> The way I remember it these wires get very hot and melt the toner
 CA> to the paper. There is no 'scanner' and no 'mirror' inolved.

Nah, the fuser roller is used to melt the toner it's a "non-stick"
coated roller with a heater up the inside.

 "non-stick" is teflon or silicone etc
 the heater may be a halogen lamp

As mark says there'll be a cleaner (probably felt coated) that makes sure
that no toner sticks to the fuser and it has to be changed regularly,
failure to change the fuser cleaner can damage the fuser roller which will
make a mess of the printouts.

 -=> Bye <=-

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