Align PIckup Roller Gears HP Officejet 4500

look inside the paper feed it sits behind the paper pickup roller

Altinis:

Remove the paper tray and look up into the paper pickup area. The roller there is the paper pickup roller. Under the paper pickup roller is a paper double-feed prevention pad. Take a "Q-Tip" dipped in alcohol and clean both the paper pickup roller and the double-feed prevention pad. That should prevent the paper double-feeds that you are experiencing.

When the paper does not feed straight, dirty or stickyrollers can cause it to jamb or crinkle, also failure to remove all traces ofpaper from a previous paper jamb will cause further paper jambs.
The rollers may be dirty or sticky and causes the paper tonot feed straight.
Try cleaning the rollers with methylated spirits.

Hi

This is a problem with the Pickup roller.

Try to inspect the paper pickup roller, on the right side of the roller you can find a small notch which gets coupled with the shaft it will be broken. You have to replace the roller.

Regards

85% of paper jams are caused by worn rollers . The rubber treads in the rollers wears down, making them smooth, so they won't pick up the paper. Sometimes, they are aged, which also gives them a smoother rounded texture, causing jams. The quick fix is to liven up that roller with a mixture of alcohol and soap. Damp a rag with the solution and wipe the rollers clean with it. That's make them more pliable and the paper jams will cease. If you plan to keep your printer,

Replace the pick-up and feed rollers.

Metal Tab Separation- Pull out your paper tray and examine either end where the paper sits in. If any of the corners are held down by metal tabs, this is your paper feed system. Chances are, you only have one rubber roller or one set of rollers arranged along side of each other. Reach in where the tray goes and feel up. You should feel some rollers. They might be completely round, or they might be shaped like a half moon. Clean whichever part of them you can with the solution, and this should stop your paper jams. It might be necessary to turn them, but don't force them if they don't move freely.

Pickup Roller and Separation Pad-

If your printer uses this paper feed system, you should see a small piece of flat or slightly curved rubber or cork. It would be towards the end of the paper tray, or deep inside the paper loading cavity on top loaders. This 'separation pad' rubs against the paper feed roller, so if you find the pad, you've found the roller. Clean it and your jams should stop.

Three Roller Paper Separation System- Pull your paper tray out, and look for a roller on either end of it. If you find one, clean it. Then look inside the printer where that roller would rest with the paper tray inserted. You'll find another paper roller there. Clean this one also. Finally, look further back or closer to the front of your printer (depending on which way your paper feeds) to find another roller or set of rollers. Clean all of these, and your paper jams will go away.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

The printer's pickup roller needs to be cleaned or if its worned needs to be replaced. The pickup roller is the little blue rubber roller behind the cartridge. If it still doesn't catch you'll need to strip the machine down until you get to the springs that lifts the papertray. Stretch the springs a bit. This will cause the paper to be pressed against the pickup roller. Re-assemble the machine and try it.

There is still paper stuck in the printer. try lifting the printer off of tray 2 to inspect it or here it is straight from the service manual...

Jams in tray 2

Table 7-10 Causes of tray 2 jams

Cause Solution

The feed or separation rollers are dirty, worn, or damaged. Clean the rollers. If they are dirty after cleaning, or if they are

worn or damaged, replace the rollers.

The pickup roller is worn or damaged. Replace the pickup roller.

The tray 2 paper pickup assembly drive gears are damaged

or the assembly is defective.

Check the drive gears in the paper pickup drive assembly.

Replace the pickup drive assembly if the gears are

damaged. See Paper-pickup drive assembly.

The tray 2 pickup solenoid (SL101) is damaged. 1 Disconnect the connector for the tray pickup solenoid

from the dc controller PCA (location J92).

2 Measure the resistance between the cable connectors.

3 If the measured resistance is not approximately

160 ohms for the HP LaserJet 4200/4300, or 110 ohms

for the HP LaserJet 4250/4350, replace the tray 2

pickup solenoid.

The tray 2 lifter-drive assembly or the stack position

sensor (PS107) is defective.

Replace the lifter-drive assembly. See Tray 2 lifter-drive

assembly and/or Printer switches and sensors.

The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.

Dirty, worn, or deformed pick-up roller, cassette separation

roller, and cassette feed roller.

Clean the rollers if they are dirty. Replace any worn or

deformed rollers. The cassette separation roller and the

cassette feed rollare are to be replaced together.

Damaged gears in the cassette pick-up drive unit. Move the gears in the cassette pick up drive unit. If the

gears are not rotating correctly, or are damaged or worn,
replace the cassette pick-up drive unit.

The pickup roller is probably dirty. Take a clean sheet of paper and put a small amount of rubbing alcohol at the end. Take that same end and place it in the automatic feeder and attempt to feed through for a few times. This should clean the pickup roller and allow paper to be picked up. Wait a few minutes for the alcohol to dry and attemt to feed a clean sheet of paper. You might need to repeat the process a few times

More than likely you pickup roller is dirty.

You can try to clean to see if that helps.

If that fails, then replace the pickup roller.

Below is a service manual that will show you how to remove and clean the pickup roller and how to replace it if necessary.

LJ1020 Service Manual

• Pickup roller RL1-0266-000CN 50,000 pages Affects paper pickup