Scanner won't pull paper in - belt problem

most printers have a cover at the back. Switch off the printer and see the back and gently pull out the cover and you should be able to see the jammed paper. So you can gently pull the paper out. If that doesn't work put the cover back and lift the front cover and see if you could see the jammed paper or even small pieces from a torn page. If you do, gently pull all the pieces out. Once you cleared all the jammed papers it should work.
Unplug all your cables and leave for few minutes and reconnect the cables and switch on, it should work. Good luck.

1. Open the Outer Back(Rear) Cover (1) at the back of the machine. Pull the jammed paper out of the machine.
   
   
   
2. Close the Inner Back(Rear) Cover (1) if it is open as shown in the illustration.
   
   
   
3. Close the Outer Back(Rear) Cover. Make sure the cover is closed properly.
   
4. Pull the paper trays (1) out of the machine.
   
   
   
5. Push the two green levers up on both sides.
   
   
   
6. Pull out the jammed paper (1) and press Stop/Exit.
   
   
   
7. Push the green duplex unit up.
   
   
   
8. Reset the machine by lifting the scanner cover from the front of the machine and then closing it.
   If you cannot remove the jammed paper from the front of the machine, or the error message still appears on the LCD after you have removed the jammed paper, please go to the next step.
   
   
9. Using both hands, use the plastic tabs on both sides of the machine to lift the Scanner Cover (1) into the open position. Make sure that there is no jammed paper left in the corners of the machine under the plastic covers.
   
   
   Note
   
   • If ink gets on your skin or clothing immediately wash it off with soap or detergent.
     
     
   • If the paper is jammed under the print head, unplug the machine from the power source, and then move the print head to take out the paper.
     
     
   • If the print head has stopped in the right corner as shown in the illustration, you cannot move the print head. Press Stop/Exit until the print head moves to the middle. Then unplug the machine from the power source, and take out the paper.
   
   
   
   1. Gently close the scanner cover using the finger holds on both sides of it as you push down on the Scanner Cover Support (1).
      
   Caution Be careful not to trap your fingers under the scanner cover. Always use the finger holds provided on both sides of the scanner cover when opening and closing it.
   
   
   1. Push paper tray #1 and paper tray #2 firmly back into the machine.
      
      
   Note Make sure you pull out the paper support until it clicks.
   
   

I'm sorry, I believe the paper is in the fuser assy, correct? The whole fuser assy will have to be removed from the copier and taken apart to get the pieces of paper out. You will have to remove the left three covers, the cover just above the delivery cover and the small one just to the left of the delivery tray. Then remove the drum unit, the control panel, then the glass and the black cover for the ribbon scanner cable. Move the top reader assembly to the left so that the access holes align so that a long shafted phillips screw driver can be inserted to remove the three screws securing the fuser assembly. Then bend back the black milar plastic cover and unplug the three connectors that go to the fuser. Carefully remove the assembly and then remove the two screws at the top of the fuser and separate the assy. Reverse procedure. Good luck.

slide the scanner/DADF unit to left side,
there is slide handle on the left side above paper exit place.
pull like as door hadle car. while sliding the scanner to the left too.
then open up the cover which below the scanner.
pull out the drum unit which the black color, there is a iron grip.
and you'll see the paper. pull out carefully.
put back the drum unit. and back it all to position.
good luck

Instructions

1 Lift the hatch on the feed tray and pull up the large green tab to the left of the roller. Remove any jammed or torn paper from under the roller and around the feed tray.
2 Pull the input feed tray out of the automatic document feeder. Grasp the feed tray with both hands and pull it straight out.
3 Check the interior of the automatic document feeder for jammed paper. Remove any jammed paper, then reinsert the feed tray into the automatic document feeder. Push down the feeder cover until you hear a click.

1. Unplug machines power cord from the power outlet. 2. Lift the scanner cover using the plastic tabs, located on the left and right side of the machine until it locks securely into the open position. 3. Remove all of the paper scraps stuck inside the machine. NOTE: The print head can be moved manually with hand to assist with removing all of the paper scraps.

4. Turn the machine around and open the Jam Clear Cover (1). Look inside the machine and remove any jammed paper. Then close the Jam Clear Cover (1).

5. After removing all of the paper scraps, Close the scanner cover by lifting the scanner cover to release the lock. Gently push the green scanner cover support down and then close the cover.

6. Remove the paper tray from the machine.

7. Place one of your hands under the LCD unit and into the opening of where the paper tray was.

8. Using your hand, lift the front of the machine approximately 6 inches off the surface.

9. Look inside the tray areas roof of the machine and you should see a row of black rollers. See picture below.

10. Look in-between each of the black rollers for a piece of stuck scrap paper. (A flash light may need to be used if you are having trouble locating the paper scrap).

11. Using a pair of tweezers, the paper scrap can be easily removed from the exit rollers.

12. Place the machine gently down onto the surface.

- If paper scraps were found and removed from the machine, continue to STEP 13.

- If no paper scraps were found inside the machine, the paper in the tray may be causing the issue. If the paper is slightly curled, the print head will catch the edge of the paper and tear it. To resolve the issue, the paper must be replaced.

- If you do not have replacement paper, follow the rest of this solution, after you have replaced the paper.

- If you replaced the paper, continue to STEP 13.

13. Put the paper tray back into the machine.

Before you can clear a "PAPER JAM" or "PRINTER JAM" error, you must locate where in the unit the paper is jammed.
First, unplug the machine for safety and disconnect the telephone line. Next, follow these instructions based on where the paper jam is located.


Paper is jammed inside the paper tray:

1. Pull the paper tray out of the machine.

1. Pull out the jammed paper to remove it.

1. Reload the paper in the paper tray.
   
   
2. Reinstall the paper tray.
   
   
   

Paper is jammed inside the machine:

1. Remove the jam clear cover on the back of the unit. Pull the jammed paper out of the machine.

1. Re-insert the jam clear cover.
   
   
2. If you can not pull out the jammed paper, lift the scanner cover from the right-hand side of the machine until it locks securely into the open position.
   
   
3. Remove the jammed paper.
   
   
   

   
   
   

4. Check the print head's position. In the example photo the print head is positioned at the left hand side of the platen area.
   
   

   
   
   
   

5. Gently move the print head to the center.
   
   
   

   
   
   Note Be careful to not force the print head to move.
   If the print head is positioned at the far right hand side, you cannot move it. Please contact Brother Customer Service from "Contact Us".
   
   
   
   

6. Examine under the print head. If anything is found, remove it.
   
   

   
   
   Note Use a flashlight if necessary to check thoroughly.
   
   
   
   
   
   

7. Lift the scanner cover to release the lock. Gently push the scanner cover support down and close the scanner cover.
   
   
   
   
   

   
   
   
   

8. Reconnect the power cord and telephone line.

Note To prevent paper jams, do not put multiple kinds of paper in the paper tray at the same time.

If the message continues to appear on the LCD, the machine will require repair. Please contact Brother Customer Service from "Contact Us".



Thanks for using fixya......

Open front cover, remove the drum unit. Check inside the printer.
There is also transfer belt assembly inside, which is also removable but it is tricky to reseat. If the paper is stuck in the fusing unit look around it for some disengaging levers in green color. Use them to release the paper and remove it.

Apparently this is a very common issue with this printer. Some repair people won't touch it and tell you to buy a new printer. However, I have been able to find a solution to your problem. You need to clean the scanner mirrors and the black ribbon under the cover.

*****CAUTION***** This is a very complicated project and can result in the loss of your printer. So proceed VERY cautiously, or send it in for repair.

Below are some instructions I have found to disassemble your printer. Please remember, only do this at your own risk and use extreme caution while doing so.

Here are the instructions:
Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} HP LaserJet 3330 Scanner Unit Disassembly Procedure

This is not an Hewlett Packard document, the author does not work for Hewlett Packard and is not responsible for any damage you do to your printer. This procedure is for skilled repair technicians and is not recommended without some knowledge of equipment repair. Proceed at your own risk.

1. Open the document feeder and pull up on the two black tabs on the left and right.
2. Pull up on the right part of the doc feeder then the left, remove doc feeder, set aside.
3. Open front door and rear fuser door.
4. Remove screws closest to teal colored fuser release levers. (side cover screws)
5. Pull right cover out from back while releasing clip on bottom of cover, pull cover towards the back and remove.
6. Push on indentation at back of left cover and pull out at back, this cover is hinged.
7. Remove four screws now visible at base of scanner assy., two on left two on right.
8. Slide covers towards back and remove.
9. Remove two screws in the back just above the fuser and just below the scanner assy. base. Remove two screws in the front, visible now after removing the scanner assy. base covers on the right and left (the left one is just behind the hinged cover near the top hinge.)
10. Remove flat ribbon cable (on left side) at either connection point to disconnect scanner assy. from print engine.
11. Entire scanner assembly can now be slid forward and removed.
12. Close the front, rear and left side doors on the print engine portion and set it aside.
13. Grab front panel face plate at top and pull forward and remove. (or pry gently at top of face plate).
14. At top of exposed front panel you will see four slots in the scanner assy. At the third one from the left there is a latch (dark grey plastic). Push down on the latch with a screwdriver and slide the whole panel assy. to the right. Lift up and out making sure to disconnect the cable.
15. Remove the three screws in the now exposed dark grey front panel cradle and cover, remove the two cables connecting the cover to the main board, pry gently at the top outer corners of the cover and pull it forward and down, remove the cover.
16. Now remove the four scanner assy. screws (one and the center front, center back, center right, center left) all are facing down under the assy. (Or just flip it upside down and remove the four visible screws.
17. Turn the unit back upright and remove the four screws at the back/top (two of them are down inside where the doc feeder normally goes.) Remove the top scanner cover position. Note: When putting the top cover back on double check to make sure the scanner belt is not twisted.
18. DANGER your about to work on the scanner carriage itself there is a really good chance that you could break it or the mirrors or bulb so proceed at your own risk.
19. At the top and bottom left side of the black cover enclosing the mirrors are two slots, if you put a small screwdriver in the slots and push gently to the right and lift that side of the cover it should come loose. Then open it to the right and remove it from the right slots.
20. Remove the black screw at the front of the assy., Disconnect the white wires from the CCD board and out of the harness, lift the clear plastic bulb holder out with the bulb then remove it from the rear. (it’s a tight fit at the front.)
21. The top mirror is held in by some really tight clips they have to be removed from the bottom right (clean the mirrors without this step if possible). NOTE: optical mirrors are not like a bathroom mirror, there is no glass covering the reflective surface. The back side of the mirror has glass covering it so if you get it in backwards it won’t work. (The way to tell which side you have is touch your screwdriver to the mirror and if it’s the right side the screwdriver will appear to touch the reflection of the screwdriver, if it’s the wrong side the screwdriver will not touch the reflection of the screwdriver because of the glass covering the reflective surface.
22. Now clean the remaining mirrors and lens very thoroughly with alcohol. Make sure they are very clean. You can put the top mirror back and clean it in place to make cleaning it easier.
23. When re-assembling the top cover check to make sure the white strip on the right side is clean.
24. Reverse procedure for re-assembly.

PAPER JAMMED INSIDE THE MFC

1. Remove the Jam Clear Cover located in the back of the machine..
Squeeze the plastic tabs located on the right and left side of the cover
and pull the cover off.

2. Remove any paper you can see jammed in the machine. If you cannot
remove the jammed paper from the back of the unit follow the in
structions listed below for reinserting the cover and then continue to Step 4.

3. Re-insert the Jam Clear Cover. The top of the cover has a slotted
opening in the center approximately 1/4 inch wide. Hold the cover by the
plastic tabs located in the front of the cover on the right and left side and insert the cover into the opening until it securely
clicks intoplace (both sides).

4. Open the scanner cover by pulling up on the lower right corner of the
cover until it locks into place.

5. Remove the jammed paper. If the paper is jammed underneath the print
head, unplug the machine from the AC power outlet. Gently move the
printhead to the far right side of the machine (the "home" position) and
then remove the jammed paper.

6. Lift the scanner cover to release the lock and then gently push the
scanner cover support down and close the scanner cover.

To test print the Help List by pressing Menu/Set, 6 (Print Reports), 1
(Help List) and then Black Start. The Help list should begin printing.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

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