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Is this process possible in the field? Thanks.

That was one that had mention of it.

I was reading how you have to start with a blank formatter, and a 4350 dc controller, you then have to install the formatter and let it sync the model info. ...

Heard online you can turn a 4250 into a 4350 by doing something with the firware. Is this correct? If so, how is this procedure done? I tried flashing the 4350dn firmware with no success.

The issue I am having is the color are not lining up. Magenta and cyan are the main ones that are off. I noticed the toners are geunine, all have in the 90% range life left, and the transfer kit...

We are in 2011 now, any reason why you do not desire a color laserjet?

If you want a good color one, a 4650 would be the way to go.

TRy using ebay for xerox brand toners, and maybe genuine NOS drums / toners.

Although discolored, how are the solder joints on the backside? Sounds like DC power problem.

If you crack open the faulty scanner, put one drop of oil from a toothpick on the motor shaft and often that will clear it up.

In the test menu you can clearly hear the laser motor spinup. All 4...

A lifespan is typically 3-5 yrs, and in an office environment they are left on 24/7 with no ill effects. Yes it will wear out faster, but it should not fail premature.

Skunk smell indicates sulfer, or fibre board burning on a PCB. If grease it would not resemble a skunk odor. But yes, a new fuser can have a different plastic / oil burning smell depending on the...

Some smart chips will give annoying errors when it is out of date. Usually it will still work though.

Why did you reseat the memory? Sounds like you made the connection worse. REmove memory again, blow the slot out with canned air, then wipe the connector edge of the memory with alchohol on a paper...

This is done thru the drivers. Make certain to download the latest drivers for HP. If you have win 7 x64 or Vista x64, you will need to use the universal drivers.

No dice. Still 54.0D coming up.

I used a q-tip to clean the LED on the left and right side of the printer, and also the tube on the toner. The LASER SCANNER actually shoots from a slot at the back of the printer rather. I beleive...

I have no problems printing now that I replaced the doctor blades on the toners. Everything comes out very nice. Any reason why I keep getting 54.0D and 54.0C density codes?


50 37190 54.0D...

I have a newer HP color laserjet. I just hate to pitch a perfectly good printer just because its slow.

Put the old fuser back in. Something is probably overheating.

I have a 1988 dated laserjet II that is based on the SX engine. It is fully working with only 12k page count. My question is the fact that it does a terrible job at graphics, and takes a speedy 3...

Answer us this: Does this unit print to a intermediate transfer belt, then to the paper? It does appear that this unit has seperate photoconductors (drums) rather than being internal to the toner...

I honestly am not sure. I was thinking the problem with the yellow not printing may also be the problem with your shadowing.

However these defects are verticle lines of no toner. Like a developer not being charged evenly. Not stray lines, but maybe "grain" lines if you will.

Too bad I can;t get my scan size down or I...

These are for the C LJ 4650 printer.

On my C,M,K cartridges, I was able to diagnose that only the doctor blades had failed. It was leaving streaks of "less deep" toner throughout the developer...

I am also not seeing any yellow on your printout. Is this deliberate?

You have a "65" printer number which should be greater than "6D". It would be interesting to see if you observe an orange toner leaking from the magenta cart. Also it would be interesting for you...