The machine reported problem with Fuser unit and all the four drums at once.

replace all the image unit and the fuser

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Hello,
You have a jam in the drum or do you mean fuser? Is it the section right before the paper comes out of the machine (Fuser) or is it about 1/2 way through the machine?
www.BOPCanon.com

Silly question first - is the drum unit DR2225 installed?

Check the toner cartridge sits firmly in the drum and that the drum is pushed all the way forward in the internal cavity. If the paper is jamming at the paper pick up roller ie in the paper tray, clean the paper pick up roller with a drop of meths and a drop of detergent on a damp cloth. If the paper jams in the drum unit, check the clear plastic guide flaps are straight and do not catch the paper. Also check that there is not a piece of paper caught in the drum unit. If the paper gets part way through the drum and then jams, check the fuser at the back for a piece of paper crumpled up inside the fuser. If the printer is trying to take ALL the paper at once, check and clean the paper separation shoe in the paper tray.

You didn't state where the jam is indicated. If it's indicating a paper pickup jam there are levers toward the back of the cassette that could get hung up.If it's a fuser jam the outlet lever on the fuser unit.If it's indicated in the transfer drum area a bad transfer sheet can give a false jam indication sensing paper on the drum.

Your jam is in the fuser section of the machine. Unfortunately this area this area is not for users to access. You will need to remove covers to get to the fuser unit. You may be able to access the paper by removing the whole drum unit (make sure you remove the toner cartridge first). Then look into the machine to the left. You may see the tail end of the document for removal. Otherwise, you will eed a service manual to dis-assemble it yourself.

IR1600 Service Manual

This is a common problem and does need a service engineer, the four fuser exit roller assemblies need replacing as they have been upgraded to address this problem.
FYI the parts cost approx

Usually there is a sensor right before the paper enters the fuser. If the paper sensor is bad the machine will stop feeding and output the error paper jam. This is probably the cuase if the paper stops in the same position all the time.

Loud clacking sound, jamming in fuser ? sounds like the gear that turns the fuser are bad and not meshing together,
accordion jam is the fingers or claws that ride on the fuser roller are probably worn out ( these can be replaced usually 3-5 ).

You can buy the parts and replace them yourself if a handy person, not that difficult.

We to have this issue with one of our 1600's. I tried to resolve this by replacing the fuser with a new one. Haven't got back around to trying to resolve this as it such a mess to get started. Someone resolve this issue yet?

hi im jules_09.have you reassemble the fuser correctly?check again the inside of the machine for small pieces of paper its just there the machine wont flash the misfed if there is nothing stock in the machine.although sometimes the drum can cause the misfed,try to full out the drum.it cant be stock just see if the drum is rotating try to rotate it 360 then slowly full it out,also check if there are srews where the drum process unit is at