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bigwold New Member
New Member

Re: Phaser 6125 prints faint black

An interesting development yesterday - a message appeared something like 'low density black'.  Printer wouldn't respond so I restarted it.  It then spent several minutes on 'configuration' with a whirring sound I hadn't heard before from behind the toner access door, and then, prints were back to normal.

 

Any idea what has been going on, or how I can trigger the fix manually in case I have the same  problem again?  I'm assuming it's some sort of toner starvation but why/how?

Xerox Employee JohnM-Xerox
Xerox Employee

Re: Phaser 6125 prints faint black

Hello bigwold,

 

Can you take a look at the error history report and tell us what and when the most recent three errors were that occurred?  This might give us an idea of what happened without getting into machine logs and other tricky stuff.

 

Here's how to get the report if you're not sure how...

 

1. Press the [Menu] button on the Control Panel.

2. Press the [Up] or [Down] arrow button until 'Information Pages' is selected on the Display Screen, and then press the [OK] button.

3. Press the [Up] or [Down] arrow button until 'Error History' is selected, and then press the [OK] button. The report will print.

4. Press the [Menu] button to exit.



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bigwold New Member
New Member

Re: Phaser 6125 prints faint black

Thanks JohnM

There are 4 entries under 'system fail history' listed against 'total print count' of 29/35/35/37 which makes these very old.  Exact chain link (all 4 are identical) is

010-397-0x0000000d 02.00.09 200710311040

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Xerox Employee JohnM-Xerox
Xerox Employee

Re: Phaser 6125 prints faint black

The fault(s) indicate a fuser error.  The next time you experience this issue, try to remove and reinstall the fuser module.  If that doesn't help, then you'll probably need to call and schedule a service call with a Xerox Technician.  Glad to hear that your machine seems to be up and running again.

 

John

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chrisjm34 New Member
New Member

Re: Phaser 6125 prints faint black

Hello, I've got thie same problem on my Phaser 6125. I've followed the messages & printed the error log & got 2 entries at 1034pages; IOT Exit Jam; IOT EXit Off Jam. I've looked but can't see any sign of any jam. Could someone help/explain these errors. Many thanks

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Spuit11 New Member
New Member

Re: Phaser 6125 prints faint black

The Solution (uhm .... about gray printing instead of black.)

 

On the controlpanel of the printer: start the menu

Choose Admin Menu \ Maintenance Mode \ Drum Refresh

Well, that took some time, and then de display said: "Low density toner".

I just ignored that; I switched the power off en after 30 seconds I switched it on again.

And ..... the black was black again!

 

sotiris New Member
New Member

Re: Phaser 6125 prints faint black

Hello, I've got thie same problem with my Phaser 6125 after 2356 pages. Ok after wasting hours of trying rejecting etc etc solutions, web searching, expert opinions i think that is illusional to solve this.

Xerox says.... pay your kidney, replace cartridges and blah blah blah.. replace imaging unit blahblahblah that sounds ridicilious (to pay xerox 80 +200 and who knows what else and not dispose this trash with a brand new canon, HP, samsung....)

According to 2 of our previous reports i understood that somehow the printer understand under unknown circumstances that "'black density is low''  and try to perform autorepair. I think that these are the only reliable testimonials.
Until now, why the printer does not realise that black density is low, and when this message will come in print screen eventyally nobodyknows....

I ll try a last full reset of printer functions, doesn't know how ( but nothing to loose)  and after that it goes for recycling...

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sotiris New Member
New Member

Re: Phaser 6125 prints faint black

I think a couple of tricks could help the diagnosis.

Dont replace the cartridge with a new one, either genuine or not. If the problem is in black, just remove the "black"chip and intall it in cyan. Put cyan in place of black and print. If it is still faint cyan then the problem has nothing to do with cartridge. Then the problem is probably the imaging unit.

Now whether  the printer can itself repair low density black or not is still a matter  of luck

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sotiris New Member
New Member

Re: Phaser 6125 prints faint black

Update

According to my last post prediction after 4 weeks the black color came back alive in a manner of autorepair. Remarkably I keep on printing with this printer turning document colors in cyan and keep printing black images faded in a light grey. No message "low density black" arised from my printer display but i performed many times some maintenance tasks like drum, cartridge and imaging unit refresh. Concerning the last mentioned procedures i dont really know how much helped but black, step by step came in an acceptable density in my document printings ( you couldnt even hardly read text in black before).

This is my case report.

Of course I dennied to pay 70euros for new cartridge, 50 euros for technician to inspect the printer and 150 euros to replace the imaging unit as they suggested......

 

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tommy_toto New Member
New Member

Re: Phaser 6125 prints faint black

Like everybody else here, I have a Phaser 6125 (which I love) that suddenly started printing light gray instead of black.

 

Let me state up front that if you have this issue, it is probably NOT:

 

1. Your toner cartridge.

2. Your fuser unit.

3. A bad driver.

4. Some hardware problem that requires paying a Xerox tech to diagnose and fix.

 

I got mine working again by:

 

1. Googling around and finding the Service manual PDF on-line.

2. Following the procedures therein to start up the secret "Service Mode" and access the built-in diagnostics.

 

I suspect that Xerox will nuke any explicit links to this document, so search around and you will find it.

 

After printing the full settings info page, the printer suddenly started printing full black again. I have some theories on this, but at this point it is just speculation.

 

1. The last time the black cartridge got low, I let it print until it was totally empty. (I'm cheap.)  When I was reading the Service manual, I noted that there is compensation logic in the machine that will sense when toner is getting light and will automatically change settings so that the print will stay dark. I have a suspicion that by pushing the toner cartridge until it was completely empty that this compensation setting got way out of whack and did not reset properly when I put in the new cartridge, causing the light gray output that we've all seen. It doesn't seem to be possible to reset this condition with the typical user admin controls and unplugging the machine, etc.

 

2. When you go to the secret Service Mode and print out the full settings, there is a pause as it gathers all the settings. It's possible that this polling causes the out-of-whack setting to reset.

 

3. It's also possible that this was just coincidental in my case, and something else I tried earlier caused the condition to clear. For example, I had earlier exercised the black toner cartridge dispersal motor diagnostic. Maybe this cleared up a problem in black-only mode that didn't actually show until I printed out a couple of new pages.

 

In any case, all I can tell you is that after twiddling with Service Mode diagnostics for a few minutes, the condition suddenly corrected.

 

NOTE: If you decide to pursue this path and locate the Service guide and try some Service Mode diagnostics, you do so at your own risk. It is easy, for example, to run a diagnostic that starts a motor that should only run AFTER a toner cartridge has been removed, and that's not obvious unless you read the procedure first. You can permanently damage your machine by doing the wrong thing the wrong way. But if your unit is toast anyway, you may be willing to take the chance. Good luck.

 

P.S. Hint: Hold down the Up and Down arrows as you power up the machine.