As you can see in the image at the top,where the arrows indicates, is the place where pages are put for the printing process, what comes to mind is the vulnerability that these printers have to enter any device including insects. Of course it is possible, very possible, we have found in these parts of the printer from insects to pencil, everything can go without noticing.
The solution is simple, we just have to use a piece of cardboard and pretend that the role is so entered like a leaf can be a piece of paper folded several times and what we do is we uncovered where part where the cartridges are to see what moment will the piece of cardboard go out, with this process we can realize if you have something where the pages have to go through and take it out, very carefully, we have to be aware that we can not leave any residue in the printer.
This post was made with information collected in our workshop of similar cases that have been presented, it is not only the solution. If you have any another solution, please comment and help us help the others.