The cleaning lamp will be a halogen or flurescent lamp, depending on the manufacture
The manual talks about a strong light to erase the drum so I assume
>it's some light source (incadescent or flourescent) but not sure since
>I haven't seen it. It appears that the drum is getting really dirty
>and the negative image is caused when it "prints" a new image which
>"cleans" off that part of the drum. So it's pulling off the old toner
>that's stuck to the drum exposing a clean surface underneath. If I
>run multiple blank copies, the negative "ghost" images eventually
>disappears...gets darkened and blends in with the rest of the "dirty"
>copy.
>
>I'm normally just a user of photocopiers and learning how to fix them
>out of necessity...small town with no local Minolta dealer. I'm not
>fully understanding PeterD's comment about the erase corona. I
>thought the erase stage actually applies the positive charge to the
>drum. I don't think there is a corona wire before the scraper in this
>model. Will need to look into it. Thanks for the suggestions/
>feedback. I'm looking at cleaning out the old toner and getting fresh
>new one. I'll let you know how this turns out.
>
>HD