Konica MinoltaMagicolor 1680MF *RESET PAPER SIZE A4* error

[spree]

Please help.

I try to change pick-up roller - nothing happens.
I try to change solenoid (clutch) at the pick-up assembly - nothing happens.

After 4-6 copies the error occurs: *RESET PAPER SIZE A4*

Do you have any idea what to change? Maybe whole pick-up assembly (A034R70100 Paper Feed Assy MC16X0) will help???

[spree]

I have solution: the registration clutch (solenoid) is bad. You must buy it from Xerox or Epson, because Konica Minolta has not this spare part available.