hp4050 duplex jams

[EBS]

any suggestions for duplex jamming legal paper only. The paper just stops coming out of duplex area

[woodss]

I have had this problem with my duplexer, there is a clutch inside the duplexer under the left and right covers, and over time they lose tension.

This clutch is a U shaped, and tensioned by a U shaped spring, my suggestion is to bend the clutch spring to make its tooth that tensions the large gear to make this plastic tooth pressed as firmly as possible without breaking the tooth, becareful that you dont do this.

The duplexer works by a large gear which is around it also is attached a the clutch moves this arm with a brown gear that moves towards the other gears and the clutch swings the arm towards the diffrent gear trains for 2 diffrent phases of operation.

Each side of the duplexer have this clutch, one for the top and for feeding paper to the bottom of the duplexer and feeding the paper back into the printer.

It very much sounds like the clutch is lose and it can be fixed by creating tension inside the duplexer's clutches.