Problems when printing ISO C5 envelopes from the paper drawer, MF8280cw

[thanos]

Hello,

I am having some issues when printing C5 envelopes.

If I use the manual feed slot, envelopes print ok but I have to feed them one by one. However, if I use the paper drawer on the bottom of the printer to mass-print envelopes, I get an error on the screen that there are no envelopes.

In both cases, the same document with the same settings is printed from MS word - so there seems to be no issue from windows side.

I can see in the screen that the printer recognizes that in the tray there exists paper, and have also set the paper to ISO C5.

I was wondering if you had any suggestions how to solve this ?

Thanks,

Thanos

[thanos]

Should also note that the printer is brand new, bought specifically for mass-print of envelopes.