kyocera 1320d

[blsquires]

this is a wierd one .printer works ok no problems .fit the extra tray, single sheets from extra tray ok ,more than one sheet first sheet ok then registration goes way out and it jams .so far it has had a new main pwb in the printer ,new drive motor, new drive unit .still the same .the weird thing is the extra tray works ok on another machine .we ordered in a new extra tray but it does exactely the same .any ideas would be appreciated.
brian

[HenryT2]

Re: kyocera 1320d

Since this PF-100 works fine under another 1320 ;
did you check the CF connector on the original 1320 ?