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I had one of these about a year ago. Same model, same symptoms. Went down the same path as you, as well as changing out CPU fan and HDD + harness. Ended up being the SBC. Not saying that's what your...

Was anything done to the device before the failure (supply change, part change...) or did it just wake up one day and do this? (Sorry, just trying to get a handle on this since you have already...

Either direct from Big X or Parts Drop (partsdrop.com)

Replace the dev housings and material. run ATC setup, run REGICON, and call it a day.

Murv

As noted above, clean the MOB and run DC675

Check the linked manual - Image Quality RAP, IQ 10 - Vertical Deletions.

I've never had one with a bad LED printhead, so I can't say. Shouldn't be any harder than working on any other box of gears.

Laserpros has the the launch release of the PDF service manual up for...

All four printheads are the same, so go ahead and swap.

Yep, I was thinking Phaser engine. Sorry about that. But yeah, bad LED is a real possibility. I've only had one customer willing to throw money at a C500, so you may well be correct about your guy...

HP Service Manuals are always vague on error codes - they are all detailed in each model/series specific CPMD document. See below



63.00.2A: The magenta H Sync signal of the laser/scanner is...

If there is toner out, it will dead stop. No print. Internal or from a PC.

Your void is quite possibly toner on the ROS lens.

Sudden, catastrophic depletion of carrier in all four developers at the same time reeks of a high voltage issue.

Check the lift gear on the back of the cassette. They break all the time.

Check the one way clutch on the nudger and feed roller on the feedhead. Those go south a lot, too.

Second the HVPS check. After that, if your housings are low mileage you might just be able to replace the material.

Turn off remote services.

How do your TA Roller and TA motor look?

Agreed. Fax to SMB isn't available on the Versalinks. Need an Altalink to do that.

Xerox password reset tool and reset.pjl available from GSN.

Or, NVM init.

Paper Width. Flags to right and left of reg chute. Optical sensor beneath.

Fuji-Xerox. Ain't gonna happen.

I've not found a way around it yet. If I do, I'll be sure to post here. We just use them as parts machines.

Okay, downloaded the PDF and I can see them now. Very weird. Seem too defined for a dev housing, but the L/R shift is too broad to point at a belt. I would have probably gone with a LPH as well....

Have you checked the fuser? Lifecount is to the low side. Sleeve could be going south.

54824

Depends on your company. I used to work for a mom and pop, but mom and pop retired and sold us to a bigger outfit. Bigger outfit has a lot of contracts with big nationwide companies, so there are...

That's an engine test page. Triggered by opening and closing the front door 4 times in rapid succession. Either you've got a firmware issue, a truly weird door switch, a DC Controller issue, or a...

I can't see the lines on your samples, but that said, have you checked the transfer belt and transfer belt cleaner?