About those black marks...

Support pilot fish takes a call from a user whose printer isn't working quite properly. "He said his printer was not printing clearly and it was leaving black marks on his paper," fish reports. "He told me on the phone that he tried to clean it but that didn't seem to help."
When fish arrives, he's stunned. There are black marks, all right -- and black laser-printer toner on the walls, on the white carpet, on the desk and chairs.

"He decided he would bring the air compressor from his garage and try and blow out all this black powder," sighs fish. "He started with the tube that had the most black stuff in it.

"After a lot of cleaning -- and the purchase of a new printer -- he can print clearly again."