I HAVE HP cm1312nfiMFP all in one printer. The

common faults for poor feeding on lj5200
1, feed rollers are worn - replace
2, sep pad is worn ( cant seperate pages correctly)- replace
3, paper empty tray sensor actuator arm snapped - unable to raise cassettetray- replace arm
4. paper feed roller fail to turn- feed unit clutch assy faulty- replace feed asseembly
5.paper tray pass guide out of position (blocking feed path) - pin that holds in place has snapped- replace feed assembly

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.

1. Remove the rear cleanout from the printer.
2. Gently remove any jammed paper or bits of paper.
3. Close the HP Paper Feed Cleaning Kit software on the computer.
4. Load plain paper in the printer paper tray.
5. Press the Power button to turn the printer off.
6. Press the Power button to turn the printer on.
7. Try printing again. If the printer still does not pick up paper or if a paper jam occurs again, service the printer.

Other solutions customers found helpful » HP Paper Feed Cleaning Kit -- Clean the Paper Feed Rollers with the HP Paper Feed Cleaning Kit in Windows XP and 2000 » HP Deskjet, Photosmart, and PSC All-in-Ones -- 'Out of Paper' Error Message and the Printer Does Not Pick Up or Feed Paper » HP PSC 1600 and 2350 All-in-One Series Printers -- 'Paper jam: Press OK to continue' Message Displays on the All-in-One

Double printing or double feed??. Double printing means document printed in 2 copies. Double feed means printer feed double paper in one moment. For double printing,please check number of copy of document in printing preference properties.
Double feed occurs when pickup roller fails to pick the paper correctly. It's usually caused by shaft of paper pick up roller which is broken. You should replace drive assembly (include pick up roller) in this case

Sounds like you need a paper pick up repair kit
Go to hp.com
support, put in your machine and something like repair paper rollers
And it will kick back a kit number.
Then go to the WEB, to one of the reseller or even ebay and put in the kit number and watch what happens.
They are about 10 bucks for the smaller printers, color could be more

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

Open the adf and rotate the pick assembly till you hear a click and then take a coin and run it up and down against the separator pad and then see if the adf picks the paper or not.If this does not work try this *# 329 and scroll thru and select adf pick test if that fails its time for you to get the printer replaced or get an upgraded printer

If you did not get ALL the jammed sheet out, there is still a small piece of paper in there somewhere, probably covering a sensor or micro switch. Get a torch and look carefully. If you don't find anything you may need to disassemble the printer to find it.

Hp help
Automatic Document Feed (ADF) does not pick up paper. Follow each step, problem seems to be in pick assembly. Prcess took less than 5 minutes with a successful outcome.

try cleaning the pick up rollers , they must be a little sticky