20 Most Recent HP LaserJet 3330MFP All-In-One Printer Questions & Answers

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The trouble is that the scanner assembly can't find its "home" station. Here is the most common solution. There is a reflective white stipe under the scanner glass that the scanner looks for. If the stripe is dirty, or if the scanner mirrors are dirty, the scanner won't sense its location, and cause a "scanner error". A qualified technician should be able to clean the assembly. The other option is to replace the scanner assembly. I hope this helps.

The panel just above the paper tray is the toner door. Grasp on left and right side, there should be little indents, then pull towards you. Front will open and toner cartidge will move towards you. Grab cartridge and pull it up and out. Reverse procedure to install new cartridge.

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Try to make a copy and once the edge of it appear from the exit open the door and it will stopped. Now try to remove the paper out and check, it could be the heater roller cusing this problem

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:
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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.

start it up again from the power source, press the menu enter button to get to service , use the < button, under service, press menu/enter, browse to service: restore defaults, press menu/enter twice.

It works, give it about 2-3 minutes to finish rebooting, it will continue flashing and then go away

It's not worth the effort because the problem will come back in 2 weeks.

A new scanner assembly will cost almost as much as a new printer. Sorry

You do need the scanner for all functions. When this scanner error come up, it is talking about the thing under the glass that has bulbs in it and moves back and forth. The error can sometime be cleared by cleaning the scanner real good. But you will most likely need a technician to do this.

A new scanner assy will cost you $300.00. You can't just buy the bulb. Keep turning off and on until scanner goes home, but this is not a permanent cure.

Two parts of the printer can affect this.
1) the toner cartridge
2) the fuser

Testing can be done to determine the problematic part.

Do a print using manual feed. Once the last bit of paper goes into the machine, open the printer door.
Remove the toner to check if smudge is there.
Replace toner cartridge if there is smudge, replace fuser it not.

The scanner blub mirror needs to be cleaned and possibly the underneath side of the scanner glass. The scanner is not finding the marks to make it function correctly.

clean the scanner glass (narrow one on the left of main glass)