HP LaserJet 2820 2840 Carousel Alignment Reindexing




What do you think about this video?

Rene Starink: On top of the right carousel (you have to remove the top cover) is a small relay. This relay is what aligns the carousel's right big gear. The relay can be taken apart by removing the spring and lever on top of the relay. Underneath the lever is a little spunge for noise damping. This spunge over the years turns into chewing gum and makes the relay stick, hence the carousel stops at the wrong place. With some alcohol remove the sticky spunge residue on the lever and relay. I just stuck a new piece of double sided tape on the lever (where the old spungy was) and left the tape (siliconated strip on the other side) on....you don't want the relay to stick together (just on the one side..the lever or the relay body). This works as a damper. Install the relay back and follow the video to re align your carousel. If you dont repair the relay your carousel will just lose its alignment again. You can also stick a piece of selotape on the other sticky side of your double sided tape. Hope this is clear.

phil buono: i SEE THE ALIGNMENT MARK ON THE BLACK GEAR. Im not sure what you mean by the alignment mark on white gear. I assumed 2 teeth in that made contact with the black gear, but Im guessing what am I missing? Thanks almost have it right side still faded Right side mostly is where imconfused

Guðmundur Einarsson: Thanks, worked perfectly

Webchez: I am sorry, but I had no idea of where the alignment marks or what teeth you were referring to..

Judith Arthur: Thanks.  I need to clear the memory on the fax.  It is full and I cannot find my book

Thank you in advance
Judy Arthur

Matthys Labuschagne (Meonaceedee): Thanks for your help!  Instead of pliers, I just used my fingers (less chance of damage to the gears.)  worked great.

Bernard Herrera: I have one question only....will this fix the new toner undetection from detecting it....this is my problem it keeps sending message the the black toner is empty.thank you

burkem73: I tried this today and it worked--not the first time, but after three re-installations of the cartridges, it worked very well--I did not have the side gears aligned properly. Once I saw the little alignment marks, I was able to set the carousel before initiating the reinstallation. This may well be an issue caused in part by using non_HP cartridges, but if so, this is the first time in 9 years of using nothing but non-HP cartridges that this problem has surfaced--and it surfaced because I removed a paper jam. I may have dislodged the carousel in doing that. But thanks again for this video--you saved me a trip to a repair shop!

Kim Wilson: Thanks, this is very helpful, but it's difficult to see what you are doing, is it possible someone could help you re-film it and point directly at the locations you're discussing?
Thanks!

Rick Blayney: I have the 54.2 error, and it just says to turn off power and turn back on.  Which I did, and it still has the error.  It doesn't actually say it has a carousel problem.  But I followed the video and  everything looks in alignment.  Put it back together again and it still has the same error.  Any ideas?

juppetupp:  Hi Chris, fantastic - worked perfectly.  Thank you!!!

Ron Toews: Thank you very much Chris. I was able to re-align my 2820 after watching your video.  I was getting a code 54.2 after installing a "new" toner cartridge which made my printer make loud banging noises from inside.  After that it would only print a little bit on the far right edge of the page.  Now after re-aligning the carousel all of the pages print exactly as they should. You made my day! 

Lyle Allen: Very helpful !  I developed this problem after changing the ink cartridges. I was in shock after spending megabucks on cartridges and a new imaging drum.  I still don't know what I did to mess up the alignment. Seems like it couldn't happen given that the left and right gears are connected by a small piece of steel--but live and learn.

I do have one comment.  This video was very helpful but I would like to clarify what I think is being accomplished. Essentially, you can use pliers, a screw driver or your fingers to bend the large (~3 inch) black gear on the right side INWARD (at the top) so that you can freely rotate it relative to the smaller white gear above it. Once free you can rotate it relative to the white gear to achieve left-right alignment.  I USED MY FINGERS. I cannot imagine every being off more than one gear tooth.

Those alignment marks on the 3" black gear are helpful but the real issue is the left-right alignment for the guides that hold the ink cartridge. Pulling out the soda straw (or removing your jeweler's screw driver) at or near a cartridge insertion point (in the carrier rotation) will allow you to have the most meaningful view of alignment--or lack thereof.  An added bonus was that the cartridge carrier stayed put--allowing me to easily bend (and release) the ~3" gear on the right side. This might be easier than not having the apparatus fixed (due to the inserted straw). Use of those pliers may inadvertently have portrayed the impression of pulling on that black gear.  I don't thing that is what is happening here. 

I'm so happy!

Obsessively Yours,
LMA in Durham NC  USA

Conrad Smith: Many thanks!  This was exactly what I needed and the video helped so much!

Toni Parra Santonja: Thank you very much!

MrAiniesta: I just wanted to say a big thank you. You are the man! It worked like a charm 

jmansfield04: Thanks Chris, you likely saved me several hours of headache and a new printer!

leosedf: Thank's for this. I re aligned the carousel and repaired the sticky pad on the brake solenoid on my 2550L and now it works like a clock.

Amazing Info TV: Thank you... the straw tip was invaluable.

ldegryse: Many thanks. It worked perfectly. I got rid of the 54.2 error.
In my case, it was the left side that needed to be realigned. once done : it worked.

Thanks again.

Holiday: We don\t make alot, but our group do get to travel frequently. Just this year we went to Bangkok to get pictures and their holiday schedules. We are still in a growing phrase so best we can aim for is break even. I think everyone have to overcome the same type of challenge when starting something new. Don\t give up!
Rating:
HP LaserJet 2820 2840 Carousel Alignment Reindexing 5 out of 5

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