Quote Originally Posted by CMB View Post
all that front door switch is going to do is turn the fuser off or on. nothing to do with light or dark copies.

if so.

please explain. been working on 7033's for 5 years and never had a front door switch cause any issues.
Geezzzz

When i was working on 7033 -40's this was most common problem. The current running through the swich is to high. When you clean or replace the switch bend the housing plate foward and maybe put some packing behing the switcg so it dosen't move back. Its the arking thats causing the contacts to get dirty. The more presure on the contacts will cause less arking meaning longer switch life.

There is another problem that can cause bery bad copy quality and the is the ozone filter behing the fuser. If no one ever cleans or replaces it at PM intervals it clogs up and heats up the image processor board causing very stange output.

Apart from that there were my fav machine to work on.