Posts: 1,162
Threads: 26
Joined: Aug 2005
I've taken the 9825 printer totally apart (and the 9815 one which is essentially the same).
IIRC, you remvoe it from the machine, and take it off the metal bracket (you've done that, right?).
Then Undo a screw at each side to release the rectangular metal bar that holds the springs (in metal cups) that press the printhead against the paper. Watch out, this is spring-loaded!. Then remove the bar, cups and springs. Remove the printhead and its heatsink carefully (it's a delicate ceramic hybrid circuit that you will _not_ find a replacement for).
Take off the paper-out sensor next (PCB on top, 2 screws). Then take off the right hand sideplate (screws on the side -- again watch out for a spring -- this time the return spring for the solenoid armature). Remove the platten/armature assembly and the solenoid.
I think you can remove part of the paper guide by undoing some screws on the left, but it's rarely needed. The manual feed knob pulls off the end of the platten (carefully!) which releases the armature. Don't do this unless you have to -- there's a delicate
plastic ratchet inside.
The nomrmal trouble is that the damping foam on the armature turns to glue. Clean it off. It isn't essential to the operation of the printer, but you can replace it with any thin foam if you want to. If it still sticks, try sticking a piece of thin paper on the face of the armature to prevent residual magnetism from holding the armature to the solenoid.