Difficulty C4400 c4480 false paper jam

I have a C4480 who has developed a false paper jam a week after the warranty missed.

The methods referenced to clear paper, reset the printer has not set. After not getting any useful help articles proposed, I started looking through this forum. I found a reference to the transparent plastic wheel loosens which controls the operation. I removed the cover on the left side and find the wheel.  In my case mine was very well attached.  I used a dusting the air compressed spray between the sensor and the transparent plastic wheel.

Hah! that fixed it! Apparently dust can accumulate in the slot of the sensor.  While it takes a Torx T-10 to, this isn't a hard difficulty. I have now printed 5 copies of a report on page 11.

I had additional false paper jams. About twice a year.

First top fix applied in this thread, removed the left cover and cleaned clear wheel and dust clear wheel base optical sensors. Has not fixed the problem.

Fixed the most recent with roller cleaning with wet paper towels with clear water.

Open A back door for access. Wiping with above a wet paper towel rolls.

Open cartridge door:

Transport has moved all the way to the right.

Removed cartridges

Clean the intermediate rolls behind were transport moves

Rolls of paper cleaned on the Board output.

Cleaned Dust-Off

Now it it works again!

Tags: HP Printers

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