tankj2
1 Copper

3000cn - Will not feed paper at all

My printer was printing fine until it stopped feeding paper & gave me "Paper Jam - Open Reg Cover" on display panel. There was no jam. If I turn it off/on it passes its self test & comes up ready for printing. If I send it a print job or even send an internal "Print Report" it goes through the motions, picks up the paper in the MPF tray but the picker does not rotate, and comes up with the "Paper Jam" message again but no associated error code. I do not have another tray on this printer. Are there diagnostics I can run? Visibly everything looks OK.

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21 Replies
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Re: 3000cn - Will not feed paper at all

I have 3 3000cn printers, one of which does not feed paper properly.  I limped along for a while nudging the central pickup roller down a few degrees, after which the paper movement process would function correctly.  But I got thinking that it might be nothing more than a lack of lubrication that was causing the binding; so I commenced to take this hummer apart.  It was not very difficult to remove the rear door and then the component that moves the paper from horizontal to vertical.  I could rotate the main shaft in the direction of the embossed arrows and watch the process.  When I did it manually all the parts worked properly.  I reassembled the parts and watched the actual process from the front looking inside the MPF.  Most parts worked as I expected:  the gears on the left side of the main shaft meshed with the vertical movement component and as soon as the print report button was pressed they would commence rotating.  After a few seconds, the large central roller commenced to rotate, but here is where the manual and automatic versions differed: the rear section of the paper tray ( I call it the lift gate) did not snap upward and so the rotation of the large central roller was in vain and no paper was moved.  Imagine my chagrin to learn that having localized where the breakdown was occurring, I could not fix it.  It seems that whatever tells the lift gate to rise is not happening.  I am not sure if any of this information is of help to you, but I am thinking that maybe both our printer have accumulated enough toner dust and grit to interfere with the smooth running of the paper transport system.  I will keep working on this and post results here.  Any information that you have would b e greatly appreciated.  Happy New Year!

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tankj2
1 Copper

Re: 3000cn - Will not feed paper at all

I removed the rear door & the vertical paper movement assy & observed the picking movement. When the selinoid pulls in, it releases the cam shaft that lifts &aligns the paper with the rubber picker rollers. The shaft continues to rotate & the eccentic picker pulls the paper between the rubber rollers. My rollers were really worn & distorted. Those rubber rollers are not sold as separate items so I had to purchase a new Multipurpose Feeder Assy which contains them for $70. It's a bear to remove it, but that fixed my problem. I think I'm good for another 200K sheets.

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llynster
4 Beryllium

Re: 3000cn - Will not feed paper at all

Did you get this fixed yet?

If not, let me know and I can fix you up with the instructions to Remove, Refurbish, and Replace the MPF assembly. Not real hard, but a little time consuming. BTW, don't ever lubricate this beast. It might work real good for a while, but will get rapidly worse as toner and paper dust mix with the "lube".

"the Llynster"

  • CompTIA PDI+ Certified
  • all dell shop
  • internet connected via WildBlue satellite
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Re: 3000cn - Will not feed paper at all

Unfortunately, I have not fixed the ailing printer yet.  I would be most grateful for info on refurbishing the MPF assembly.  Should I send you my email address?

 

Brian Walsh

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llynster
4 Beryllium

Re: 3000cn - Will not feed paper at all

Just sent you a PM......

"the Llynster"

  • CompTIA PDI+ Certified
  • all dell shop
  • internet connected via WildBlue satellite
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tankj2
1 Copper

Re: 3000cn - Will not feed paper at all

Sorry, cannot find a PM in my box - how can I view it?

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llynster
4 Beryllium

Re: 3000cn - Will not feed paper at all

"tankj2"...... It was not sent to you...... it was sent to "Shelton Retiree"

Just an FYI...... everyone who's participated in the thread is copied on any posting "updates/replies".

"the Llynster"

  • CompTIA PDI+ Certified
  • all dell shop
  • internet connected via WildBlue satellite
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Re: 3000cn - Will not feed paper at all

Hello there llynster.  Hope you are enjoying this Presidents' Day.  I followed your advice and removed the MPF and cleaned it.  It may have been disassembled once before, because there was some light grease on the rear paper tray metal shafts.  Even with the lubricant present, the tray continued to bind up on the posts.  I cleaned the posts and the tray of all lubricant, and the tray continued to bind.  I also noticed that there were wear spots in the paths of the two cams that lower the tray.  I applied a thin layer of low temp grease to the posts and daubbed a little on the cam wear spots.  I reinstalled the MPF and the rest of the printer and tried it out.  Success!  The small amount of lube decreased the friction sufficiently, allowing the drive motor to move the paper tray through its paces.  Two questions:  Are the posts lubed at the time of manufacture, and if so, what type of lube is used?

Thanks for helping me out on this.  I am the newsletter for a retiree group here and I was not looking forward to using a 2' section of curtain rod with a rubber tip to complete the main paper roller's rotation 1400 times.

Brian Walsh

 

 

 

 

 

 

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7- Thorium

Re: 3000cn - Will not feed paper at all

Brian Walsh,

 

Maybe another nice member can help you out. Our dear friend llynster has retired from the printers fourm.

 

 

Rick

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