pages are missing from

[feeder_supply]

The warm up time of the copier seems extended, taking between 10 and 15 minutes for the copier to warm up. When making copies of duplexed pages,
some of the pages are missing from the output sets. The copier also intermittently keeps running during a copy cycle and no pages seem to be output.

[emujo]

What type of MFP.

[pepper38_cnd]

With so little information supplied I will take a guess. The reason for pages missing from the output set is probably that the DF double fed an original. The stopping and cycling in the middle of a job is Stabilization which if you have older firmware and improper setting can occur quite often on some equipment especially if your paper is letter R or legal.

[ni311]

The name/type of the machine is critical for the right answer. Whatever is the machine, the warming time is unbelievable, in my opinion, any machine should code in this amount of time.

[kostasthess]

i had the same problem with a bizhub350
i had to change all consumables(dev.unit-drum unit-transfer roller)