HP LJ 1320 Duplex cant function.

[MrJi3]

i face the problem in HP LJ1320 Duplex cant function.Even i selected the option "print in both page" or changed the formatter, duplex board and solinioc also cant.

it keep printed out a blank paper, then showing paper jam after i press print.(self test print, test page print and docement print also same)

Can some body tell me how to solve this kind of problem?

 

[victorv]

hi,
I am not expert in this field, but I believe that to print
on the rear, there is just 1 laser, and in the printer there
is some strange mechanism that flip the foil.
Probably there is somethong in this mech that does not go,
or is blocked: try to open the printer (just the parts
for paper movement, move something and
"rebuild2 the printer.

bye
victor