I got an answer about parts catalog from Mr. Joseph Moore; appreciated that. But I was not able to find the part I am looking for: it is some kind of pad, located at the right side, actuated by a spring that applies pressure to the paper and the feed rollers in order to feed the paper. The figures are all “big Pictures” and I was not able to determine in which assembly it is contained. Would Mr Moore (there is not e-mail address) help me with this ? Thanks a lot in advance !!!