HP Color LaserJet Pro M475DN
Found that when tray is full, rubber wheels will not grab paper, but if tray is only 50% wheels start working again. Will try cleaning wheels with isopropyl alcohol and see if it improves.

Experienced technical support provide their insights in answering this question :
Isopropyl alcohol is not recommended for rubber rollers. It dries out the rubber and hasten it’s cracking and breaking. It will do nothing to restore the grip. Those rollers are really hard to replace. It would be easy if that dumbass secondary menu really worked. None of the techs I’ve spoke to ever got into it. Everyone I know sends a print job and listens for the roller to rotate into position where you can pull it off.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Dust, dirt, or debris: Not cleaning the HP Printer can also result in a paper jam error. So, if you find that no paper is stuck but a paper jam error showing, you must check for the dirt or dust on the device.
your pickup roller is dirty and the printer can`t grab a piece of paper. it will say paper jam when it does this. get a drop of dishsoap and clean the pickup roller of your printer with this. scrape at it with your fingernail to get the roller clean and wipe it off with a damp washcloth.
A piece of paper stuck in the paper tray or inside the printer can create a paper jam. Paper jams can occur for a variety of reasons, such as overloading the paper tray, loading different thicknesses of paper in the tray, or using paper that isn`t appropriate for your particular printer.
The paper starts to feed into the printer, then stops. You may hear a crumpling sound as the paper gets stuck and crumpled up inside the printer or paper tray. Paper feeds into the printer; the printer starts to print, then printing stops, and the paper remains in the printer.
Paper jams

A piece of paper stuck in the paper tray or inside the printer can create a paper jam. Paper jams can occur for a variety of reasons, such as overloading the paper tray, loading different thicknesses of paper in the tray, or using paper that isn`t appropriate for your particular printer.

If the paper is even slightly askew, the rollers will pick it up a little crooked, and — guess what — the crooked sheet will immediately get jammed. So even though there`s no paper stuck when you start printing, the loose paper guides are ensuring that a sheet gets jammed whenever the printer starts doing its thing.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Paper jam in tray 2 (but no paper pulled from tray) also M476DN models
ANSWER : Isopropyl alcohol is not recommended for rubber rollers. It dries out the rubber and hasten it’s cracking and breaking. It will do nothing to restore the grip. Those rollers are really hard to replace. It would be easy if that dumbass secondary menu really worked. None of the techs I’ve spoke to ever got into it. Everyone I know sends a print job and listens for the roller to rotate into position where you can pull it off.

My printer feeds through one piece of paper all the way and then a half piece of paper and stops. I pull out the paper to stop the paper jam and then it prints but sounds rough. After printing, it doesn't feed the paper all the way through.
ANSWER : And the first 2 sheets, the full and half sheet that go through first, are blank.

hp 8600 pro when power on, paper jam message appear but there is no paper jam in the tray
ANSWER : Hp 8180 Photosmart All In One code keeps says paper jam and carriage jam when neither are jammed. I followed all the recommended things to do. I live in Raleigh NC any place to take this or any suggestion.

Paper Jam and carriage jam code when nothing is jammed
ANSWER : Did you try cleaning the encoder strip that runs through the cartridge assy.? Use Window Cleaner on a paper towel. Also, check inside on the right. I’ve seen a lot of times where there is a folded up scrap of paper that stops the carriage from going all the way to the right.

Printer stops pulling paper from tray 2 after a few sheets
ANSWER : Sticking pickup roller solenoid. Pretty easy fix. You need to remove the right side covers. The back one just slides off, but the top holds the front one. I usually just take the 2 right side screws off and gently lift the top enough to pop off the side panel. Open the metal door on the formatter assy. Then release the tab in the middle. There’s also a tab at the front of the panel. When putting it back on, make sure you engage the rocker switch and the metal rod before pushing it into place. When you get it open, you’ll see the solenoid at the bottom front. There’s 1 screw holding it in place. Remove it and take the top plate and spring off. Be careful not to lose the spring. Then scrape off the gooey crap on top and clean off the plate as well. I put a piece of thin sticky backed felt in place of the remnants of the disintegrating sponge that HP uses. You can find it at the hardware store used for the bottom of chair legs.

Canon mx410 Paper jam message, but no paper jam?!
ANSWER : I have exactly the same problem, no answers 😳

Paper Jam error but no paper jam
ANSWER : Obviously you didn’t get all the paper cleared out. There is a small scrap in the paper path causing the jam when the paper hits it. You can try clearing it out by inserting something stiff like a piece of file folder from the back of the printer into the paper path and pushing the offending piece out that way.

Paper Jam Tray 1
ANSWER : Tray No. 1 (the feeder) has to be either FULLY closed or FULLY down, down to about a 45 degree angle. Then hit the OK button and it should Initialize and start working. This solution is for when there is actually NO paper jamming the printer.