Question about Konica Minolta magicolor 5430 DL Laser Printer

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I am getting yellow spots on everyting I print. I

I am getting yellow spots on everyting I print. I have cleaned off the yellow print cartridge and the waste toner, but it didn't help

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This is a laser printer and not an inkjet printer. Cleaning the "Print Head" isn't an option and putting alcohol on the printer's toner cartridge isn't the answer either. Minolta indicates that it is likely the yellow toner cartridge is bad. I have had a magenta toner cartridge exhibit the same problem. I just had to replace it which solved the problem.

Posted on Apr 29, 2010

  • andrewn0 Sep 21, 2010

    If the spots are about 0.1 mm in diameter, they are supposed to be there to prevent counterfitting etc.

  • rbarger Sep 21, 2010

    No. The spots of toner shouldn't be there. Use the menu to run a test print and if the problem continues try to clean laser lens using the special tool and following the manuals instructions. (I am on my iPhone or I'd type exactly what to do ). If the spots still occur on the test print after 20 or so prints I'd say the toner cartridge is bad and you should try a new cartridge. Keep the old one until you can confirm that is the case.

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Routine maintenance and keeping full ink tanks will prevent this problem, however if you have the problem you can resolve it by doing the following:
1. Clean your print head using denatured alcohol solvent which can be purchased from most hardware stores. If unavailable, use 91% Alcohol (isopropyl alcohol (first aid antiseptic) which is available for less than a dollar at most Walmart pharmacy departments.

*Warning: You may want to use a pair of latex exam gloves as this is a messy process and can stain your fingers.
Time necessary 45-50 minutes
Supplies needed:
Isopropyl Alcohol or denatured alcohol
paper towels
latex gloves
sink, bowls and or basin
can of compressed air
very small screw driver
tablespoon or baby bulb type syringe
warm water

PROCEDURE:
1. Lift print head from printer. It pulls out easily because it is held in with the same down lever that holds the cartridge in place.
2. Put two layers of paper towels in the bottom of a dish to protect sensitive sprayer heads.
3.Put enough solvent in dish to cover the screens on which the cartridges sit when in use.
4. Take the two small screws out that hold the white ceramic piece
5. Gently, pry the ceramic piece back and away , to reveal the underside (No need to pull away the glued points on the sides.)
6. Gently, move head up and down to slosh solvent around it the best as you can. Use a table spoon or syringe to pour solvent over all orifices in the print head, turning it upside down and then back a few times.
7. Use canned air with a plastic straw to blow into and through all orifices, alternately sloshing/swishing and pouring solvent over head (be careful not to touch any of the holes, screens, or sprayer heads with anything)
8. Empty dirty solvent from bowl and replace with paper towels and clean solvent. Soak for approx 10 minutes. Rinse again with clean solvent poured directly on all parts, letting solvent overrun and fall into dish or basin.
9. Gently shake the solvent off the head, take it outside and spray with compressed air into all orifices to clear out and help evaporate any remaining solvent. Let sit on a clean paper towel for approx 20 minutes. (There may be a little ink bleeding out of the head, but once it dries completely it does not present any problems.
10. Reinstall head, cartridges and it will print like a new printer.

SUGGESTION: For many years of problem free printing, keep a double set of ink cartridges, one set full at all times. Whenever a cartridge runs out of ink, replace it IMMEDIATELY, with a new one or a refilled one. This gives the print head no chance to dry out and create clogged heads. Routine maintenance of cleaning the heads every 24 months does wonders for keeping your printer in new condition.

Hope this helps. .

Posted on Feb 08, 2010

Testimonial: "Cleaning help was very helpful. I do keep my cartridges full because I use my printer every day. A manual with my printer would have been helpful."

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If using correct carts and stil issue, then check the below info to clean the print contacts and cartridges:

Remove the cartridges from the printer. Take a dry lint free paper towel and gently wipe the contacts on the back of the cartridge (not the bottom from where ink is present). Wipe the contacts inside the printer (on cartridge carrier). Snap the cartridges back into the cartridge carrier.

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