LaserJet 3700n Front Door Stuck!

[quantumburnz]

The front door jammed while trying to close it.  It's not locked in a partly closed position.  It seems like the transfer kit is partially locked in place and the handle is in a bit of a raised position.  I can't close the front door all the way or open it all the way.  I can't figure out how to release or disengage the lock to try to re-open the front door.

Any help would be great appreciated.

[Copier-Pro]

try this link might help with some ideas/lbrty.com/tech/Manuals_HPC/CLJ3500_3550_3700sm.pdf

Hope this will help.

[quantumburnz]

Thanks Copier-Pro.  Fortunately, I already have the Service Manual; however, it hasn't helped me figure out how to unstick the latch.  Problem is, I have no idea what's holding things up.  It seems like it's toward the right side, and I think it has something to do with the ITU, but I can't tell for sure...

[davidzuts]

If you have the service manual look for the instructions on the removal of the left and right swing quides. Most times when the door is stuck it is because one of them is not sitting right. Right side is easy as only right side cover needs to come off to see the internals. Left side is more difficult since the high voltage ps need to be removed.

[quantumburnz]

Thanks for the suggestion davidzuts.  I have the left and right panels off.  As you mentioned, there's not much interesting on the left without really taking things apart.  On the right, I can't see much in terms of the inside.  Also, removal of the swing guides requires opening the front door, removal of the transfer unit, etc., which I can't do in the current state. 😕

[davidzuts]

When you try to open the front door look at the swing arm assembly on tghe right side as it should start to move and if locked in place you need to figure out how to release. Most times if you remove the two screws that secure the arm to the toner tray it is enough to release the front door but if the toner tray is what is preventing the door from opening you will need to remove the left side also and when you get the front door open figure out why the toner tray is stuck.

[quantumburnz]

Right sideHandle not fully engagedDoor partially open

davidzuts,

I uploaded a few pictures so you can see what I'm working with.  The door is completely jammed where it is, I can't move it in the least and as you can see from the swing rod, it's all the way back.  I did try removing the two screws; however, the door still wouldn't budge.

By toner tray, are you referring to the left and right swing guides the toner cartridges sit in?

I'll try taking the left side apart over the next couple days unless you or anyone else has any better idea from the pictures.

[davidzuts · Accepted solution]

You could remove the image drive assembly as that will free up the toners on the right side and also give you a better idea of what may be holding the door from opening.

[davidzuts]

I would remove the image drive assembly next since that is what holds the toners in place. Itg should give yo a better idea what is holding the door from opening.

[davidzuts]

I would remove the image drive assembly next since that is what holds the toners in place. Itg should give yo a better idea what is holding the door from opening.