Question about OKI C6100n Laser Printer

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OKI C6100 only prints in color

Initially when C6100 stopped printing black only or black text, we would remove the black cartridge, tap a few times and replace. Print quality would return to normal and last for 2-3 weeks of home printing. After going through the this cycle 6-8 times the C6100 would not respond to the "remove, tap replace." Other colors are fine and there are no error messages; swapped the black drum/cartridge with the yellow drum/cartridge and black prints instead of yellow and no yellow. After putting the yellow in the black position, we noticed a very, very, very faint yellow text. So faint that it was not noticed at first. Any thoughts on why only the black position will not print?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 44 Answers

SOURCE: Poor quality print

Try cleaning the LED heads. These are located in the lid and are facing you when you have raised the lid. A quick wipe with a dry cloth or tissue should help. If in doubt, check the user manual.

Posted on May 11, 2009

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Soulvisitor
  • 1113 Answers

SOURCE: OKI c5100 Printing GREY instead of BLACK.

Check density control in COLOUR MENU is set to auto and exucute auto density in same menu, clean the led heads on the lid.

In MAINTENENCE menu you can increase paper black setting (ie+2).

If any of your non gen Toner got mixed in the new black drum then this is the real issue.

If paper has moisture in it toner doesn't stick as well, run it threw twice (first time it dries out) to confirm it is not a moisture issue

Posted on Jan 13, 2008

  • 105 Answers

SOURCE: Oki C3100 - v poor print quality

Hi Errol

The way to identifiy your problem is to send a full colour print to your printer and open the top just as the paper starts to come out . if you then remove your toner / drums for all the colours you can see the transfer belt if the quality of the image that you can see on the transfer belt is good and clear your problem is with the transfer form the tranferbelt to the paper and not any toner /drum issue and the most likley cause is the transfer belt itself "but before you relpace it remove it and clean around the electrical contact points and generally make sure the internals of the printer is free of loose toner .

Regards Alan (Alstech)

Posted on May 13, 2009

LizBux820
  • 1 Answer

SOURCE: Have an OKI Printing Solution

Found this at Fixyourownprinter.com

1. Turn machine on while pushing and holding the TWO up/down menu buttons at same time.
2. Menu window will show "OKI USER"
3. Scroll to " Engine Dialog Mode" is indicated. Push Enter button.
4. "Diagnostic Mode xx.xx.xx S-Mode is indicated.
5. Scroll to "NV-Ram initial" is indicated. Push ENTER.
6. Window shows "NV-Ram- Initial Table 1".
7. Push ONLINE and ENTER Buttons simultaneously and HOLD for 10 seconds after you see "Executing Reset" appear in menu window.
8. Restart printer.

All toner, drum, fuser and transfer figures return to 100%.

Worked for me when I had the same error. Hope it helps.

Posted on May 26, 2009

KudesNIK
  • 22 Answers

SOURCE: Print quality problems C3400n

And the problem is with the magenta drum.

Posted on Jul 24, 2009

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1 Answer

Doesn't print black text despite full cartridge


Hello,
It may be problem in print head or purge unit, bzt first did you try with print head cleaning under printer properties/preferences?Try few times, if not, remove ink crg., remove print head, take lint free clotch and moisture it with destilled water and put the print head on it few minits, then dry it with anoter lint free cloth.Put it back in and repeat the head cleaning and nozzle check.

If not helpfull replace print head and purge unit with absoerber

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My Brother HL1230 printer prints with whole lines of text missing several times on a page and gets worse by missing more lines if printing several pages. It has a new toner cartridge. How can I sort this...


I have a brother MFC 3240C. My Black ink stopped printing(initially printed horizontal faded lines and gradually got worse), the other colors were printing fine. I tried cleaning numerous time( 50 -100 times over 1-2 weeks ). Still no improvement. The way I print now is:
1. I go to Printer Properties
2. Change Media type from "Plain Paper" to "Inkjet Paper".
3. Change Quality to "Photo".

This takes a long time to print 1-2 minutes per page. However, this works for me since this is my Home printer and use it for printing only few pages here are there.

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Jan 28, 2010 | Brother HL 1230 Laser Printer

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I have a Brother MFC 240C printer that will not print black ink. I just changed all the cartridges. All the other cartridges print. I ran the clean cycle many times. No error messages just blank paper.


I have a brother MFC 3240C. My Black ink stopped printing(initially printed horizontal faded lines and gradually got worse), the other colors were printing fine. I tried cleaning numerous time( 50 -100 times over 1-2 weeks ). Still no improvement. The way I print now is:
1. I go to Printer Properties
2. Change Media type from "Plain Paper" to "Inkjet Paper".
3. Change Quality to "Photo".

This takes a long time to print 1-2 minutes per page. However, this works for me since this is my Home printer and use it for printing only few pages here are there.

Good Luck
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Brother 420CN printer will not print black ink. Have replaced the cartridge and after several cleaning cycles, it still will not print properly. Test Print shows colors are fine but black ink is hit and...


I have a brother MFC 3240C. My Black ink stopped printing(initially printed horizontal faded lines and gradually got worse), the other colors were printing fine. I tried cleaning numerous time( 50 -100 times over 1-2 weeks ). Still no improvement. The way I print now is:
1. I go to Printer Properties
2. Change Media type from "Plain Paper" to "Inkjet Paper".
3. Change Quality to "Photo".

This takes a long time to print 1-2 minutes per page. However, this works for me since this is my Home printer and use it for printing only few pages here are there.

Good Luck
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Dec 20, 2009 | Brother MFC 420CN All-In-One InkJet...

1 Answer

Black ink in brother 240c printer does not print new cartridge


I have a brother MFC 3240C. My Black ink stopped printing(initially printed horizontal faded lines and gradually got worse), the other colors were printing fine. I tried cleaning numerous time( 50 -100 times over 1-2 weeks ). Still no improvement. The way I print now is:
1. I go to Printer Properties
2. Change Media type from "Plain Paper" to "Inkjet Paper".
3. Change Quality to "Photo".

This takes a long time to print 1-2 minutes per page. However, this works for me since this is my Home printer and use it for printing only few pages here are there. Better than throwing the printer.

Good Luck
RK

Nov 20, 2009 | Brother MFC 240C All-In-One InkJet Printer

1 Answer

Printer prints color, but not black even with new cartridge


First thing to do is a head clean then do a test print. Do you see any of the black lines?
If not, don't do a deep clean as this uses up too much ink. Remove the ink cartridges and then remove the print head unit.
Run the print head under a hot tap for a few minutes until all the run off is clear. Take it outside if you can and shake it dry vigourously. You can use paper towel if you like but try not to wipe across the nozzles. Make sue the contacts are all dry and refit it to the printer. reinstall the ink cartridges and print a few test pages - the first couple may well be wasted but then it should start to print properly.
Is the black still missing? If it is do another head clean and another test print. Any improvement? If you start to see some black do some more head clean routines and it may well come back to normal. If on the other hand you see no trace of black at all, it could be that the print head is worn out and needs replacing.
This printer is now of an age where the print head may well be failing. Mine had to be replaced last year as one of the colours stopped printing.
The head is not exactly cheap - but it's cheaper than buying a new A3 printer.

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HP PSC 1300 All in one Printer


Replacing the print cartridgesgtabtop.gif
  1. Turn on the HP PSC and lower the print-carriage access door.
    The print carriage will move into the access area. Figure 1: Opening the print-carriage access door
    c00034850.jpg
  2. After the carriage stops moving, push down on the top of the print cartridge to release it, and then pull it toward you out of the slot.
      NOTE: The black cartridge is on the right side of the print carriage.
    Figure 2: Removing the print cartridge
    c00034851.jpg
      NOTE: It is normal to see ink buildup in the print cartridge slots.

  3. Remove the new print cartridge from the packaging and gently remove the plastic tape by using the pink pull tab.
      CAUTION: Do not touch the copper contacts or ink nozzles. Install the cartridge immediately upon removing the tape to prevent ink from drying in the nozzles.
    Figure 3: Removing the plastic tape
    c00034852.jpg
  4. Push the new print cartridge into the appropriate slot at a slight angle, until it clicks into place.
      CAUTION: Do not attempt to push the cartridge straight into the slot. It must slide in at a slight angle.
    Figure 4: Inserting the print cartridge
    c00034853.jpg
  5. Close the print-carriage access door.


Using a photo print cartridgegtabtop.gif To use the photo print cartridge, remove the black print cartridge and insert the photo print cartridge in its place.
The photo print cartridge can be purchased separately and will optimize the quality of printed photos.
With the tri-color print cartridge and photo print cartridge installed, you have a six-ink system, which provides enhanced quality photos. For printing regular text documents, use the black print cartridge.
Use a print cartridge protector to keep either print cartridge secure when it is not being used. Figure 5: Storing the print cartridge
c00034854.jpg 1 - Inserting the print cartridge
2 - Removing the print cartridge

Aligning the print cartridgesgtabtop.gif After installing or replacing a print cartridge, the HP PSC will automatically print a cartridge alignment page.
  1. Place the alignment page face down on the left front corner of the glass with the top of the page facing the left side.
  2. Press Scan .
    The HP PSC will align the print cartridges. During the alignment the button LED will blink until the alignment is complete.

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6 Answers

Black ink not printing


Fix ink cartridge
I had same problem. I must have ran the clean cycle more than 30-50 times over a period of days. That never made any difference. I was about to toss the whole thing but figured I would try one more thing. If it didn't work I would be in no worse shape. Here is what I did.
Took an almost empty black cartridge and inject a lot of 100% Acetone to dilute ink. Left some black in it since I didn't want to think it was empty. Inserted this cartridge and ran the cleaning a few time. IT WORKED. I used my word processor program and filled a page with large bold font characters and printed a page or two. Each page cleared more nozzles. After doing this cleaning/printing a number of time, I put in the full good cartridge. Ran the cleaning a few time to eject any of the Acetone diluted ink. Ran the printed page a few time to remove more of the diluted ink.
Everything seems to work now.

Apr 20, 2008 | Brother MFC-5440CN All-In-One InkJet...

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