Check the maintenance report or U903 (JAM counter), check whether below counter are counted up.
8000i/6500i//DP-771: J9010 J9011 J9110 J9300 J9310 J9400 J9600
DP-770 : J9010 J9110 J9600 J9610
Check the DP firmware version at U019
8000i/6500i//DP-771:3M4_9500.007.002
DP-770 : 3NV_9500.005.001
OK
No count Count up
2.J9010 J9011 J9110 J9300 J9310 J9400 J9600 J9610 occurs, take the following measure.
Download the DP firmware
Before
After
OK
J9010/J9011/J9110/J9300/J9310/J9400/J9600/J9610
68