I'm also having the same scanner, which a similar problem....I was
getting vertical yellow steak. I opened it and cleaned the shiny
reflector glass and the lamp with spirit like liquid (don't no what
exactly it was).....now it's working perfectly. But please don't try to
open your scanner if you are not having on hand experience....removing
the lamp is probably the most difficult task, even a slight pressure
can rupture it.
>> Stay informed about: Problem with my scanner - UMAX Astra 2000.