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Error 43 --- Fuser temperature rising too slow error. 1. Replace the fuser. 2. Inspect the wiring harness leading from the fuser to CN12 of the engine control board. 3. Replace the engine control board. 4. Replace the power supply. The service manual has illustrations and such.

The screeching noise seems to be emulating from under the toner cartridges. The I.U. turns freely by hand. Black print is very faint on pages. Color looks ok. I suspect the Developer drive motor/ assembly but ran out of time and will return to troubleshoot. I haven't removed the covers yet...

Kelly, Someone else may offer a more model specific responce for you but I'd recommend you uninstall / reinstall your printer software. Sounds like a classic case of driver corruption to me. (i.e. copying and scanning perform correctly ) bye

Thanks ... Pivot plate is definately cracked. The(Right side)Metal cam strike plate was lying in bottom too. I didn't find that the cams have slipped on the shaft but each cam appears to have a hairline crack across the backside of it where its secured to the shaft. They still fit tightly but...

Phaser 850. Scraping sound. Anyone had to replace a Y-axis belt drive assembly for noise? An awful scraping sound as the belts turn. Very noticable even in standby mode as brief low speed belt rotation is made. Sounds like worn out bearings.. it doesn't seem to be coming from drum side...

Thanks for that helpful post. It's a white color plate and it IS cracked. Will post a follow up after replacing it. Thanks again.

Update: I found a reference in the manual to a "stuck heating plate in the drum preheater" that sounds interesting. It refers to smears. Its for the Phaser 840/850 [service & parts pdf. Page 192] but may be revelent. Will pull preheat and see what i see. Stay tuned....

Model: Phaser 8400 Problem: Double images & Paper jam @ exit Image repeats & isn't cleaned off on right side of drum. (about a 1" wide strip, very close to the right edge) As a result, paper jams @ exit Cleaning cycles won't remove ink build up. So far: - New Maintenance kit was installed...

Thanks for the reply. I had located the sensor, unfortunately no paper was stuck and the sensor wasn't broken or binding. How accurate is the diagnostics in your opinion? It did point towards the sensor. If i order the sensor do you think its 99% probability it will fix it? Thanks

Hey, Searched and found some relevant posts. Diagnostics says its the PreHeat exit sensor showing a jam. I'll have to determine which one it is exactly but its something to check. BTW, What a great forum. I've looked all over the net before i found this forum. I'll try and input in the...

Customer has brought this unit in for a exit paper jam that won't reset & had also broken a clip off the snap-in green guide plate attached to the fuser, Said it had dropped into machine. Finally found the clip but no luck clearing the jam. Checked exit flags & cleaned sensors- all seem ok but...