Color Laserjet CM2320 not picking up

[theengel]

Last month, I replaced the pu motor on this thing because of intermittent jams. It worked fine for all that time.

Yesterday, the customer was getting a "remove packing from cartridge" error. I swapped color cartridges, as suggested in other threads, then swapped them back. The error went away, but now I can't print.

When I print (internal and external--or even an engine test), the developer & drum motors go on, I hear some clicks (probably from the transfer unit), but the pickup motor never engages. It'll keep doing that, the motors starting and stopping, without ever actually giving a jam code.

[Wild Bill]

Firmware?
Reset factory settings hmmm strange problem.

[Lance15]

Solenoid? Main Drive?

There really isn't much that can be replaced on these units. I'd suggest main drive, but, unless you can find a junk machine or someone who has parted one (eBay), the main drive isn't orderable.

[theengel]

I was thinking DC controller, but I really have no idea. Like I said, the actual feed motor (which I replaced a little while ago) isn't turning at all. I can't, from the manual, tell where the drive comes from. These HP manuals are getting worse and worse.

[Wild Bill]

My thought on these is if it looks like a lot of labor and an expensive part its time for a new machine.
The hard part is getting customers to see this and if its on contract well then Id look on ebay for a replacement.

[theengel]

Bringing this up again because I have yet another machine doing the exact same thing. The machine keeps cycling, as it's trying to print, but the PU motor never turns. And it never gives me a jam code--the machine just continues to "cycle"... I hear all kinds of gears and motors turning until I turn it off. Has anyone else seen this?

[Lance15]

CP2020, CM2320, M351, M375, M451 and M475 MFP Series - Remove Shipping Lock error message on con.pdf

[Lance15]

Here's that first document they reference in that document I posted.

CP2020, CM2320, M351, M375, M451, M475 and M476 MFP Product Series - Remove Shipping Lock error .pdf

[theengel]

This has to do with the cartridge lock problem, but that's not the problem I'm having.

[theengel]

Bumping this up to see if anyone found a solution. What was actually happening, was a solenoid in the main drive unit (I think). But I it's in the middle of a giant gear assembly, and I'm too scared to just take it apart.

I've seen three like this in the last year, but the gear assembly wasn't for sale.