i have one that will not accept paper - it will run in reverse only = I tried to take it apart - took out all of the screws - but the way it is made it seems you have to break it to get it apart.
I just kept the waste basket and threw it away.
I bought another one not a fellows and it just stop on me. I just think they are toys - not designed for business applications.
Sorry I could not be of more assistance !!
gerald brown
August 2008