XEROX 5328 Has an error E40. How to take care of it. I do not have any manual.

Sometimes this jam can be the exit rolls. If they are the spongy upper rolls they flatten out and no drive. The lower rolls can be smooth and glazed. Try replacing the upper rolls if nothing else fails. If the upper rollers metal holders are bent they may not be down on the drive rollers and not able to grip the paper to drive it out the machine.
On some 5028 5034 family machines, the exit roller is driven by the exit motor.
The exit circuit board can cause the exit roller motor not to work, very intermittant also and hard to detect. This board is located in the duplex paper feed modual, not an easy task to service.
Not seeing the machine it is hard to troubleshoot the machine.
These problems can come from a paper feeder with worn clutches or paper feed registration clutch binding or slipping, even a registration paper feed clutch not operating correctly.
Good luck.

That is an exit Jam code in the fuser.
You may just have one of the fingers bent straight down blocking the paper.
There also may be a secondary code that is causing the E-4-0.
But that is where to start. Look under the exit web cover for a piece of paper crumpled in that area.
Once there you may have to remove the fiser web cover to remove that jam and straighten out the finger.
MAKE SURE IF YOU GO INTO THAT AREA TO UNPLUG THE MACHINE.