Question about HP DeskJet 640c InkJet Printer

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Printer colour all wrong!

My printer started printing my images with a blue hue covering the whole image...I changed the cartridge, it didn't help. I realigned the cartridge and cleaned the heads still no joy. Any help would be most welcome as I am clueless as to what to try next. Thanks in advance for any help.

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Re: printer colour all wrong!

What application are you using to print the image? Can you access the printer properties tab and see if there is am image setting option. You might need to adjust the color correction option.

Posted on Jul 27, 2007

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Lexmark Z615 inkjet printer - whetther I print in colour or black and white, I am getting whole lines of text/image missing. When I use the "clean nozzle" function some of the colours - like...

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I have a hp 3310 wireless. It prints in colour well but if you print in black most will be not clear although a line every so often is printed clearly. If you print the same document the same lines...

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Printer not printing all colours

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please rate this post.


Aug 23, 2008 | Printers & Copiers

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No Yellow will print

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OKI c5400

Assuming that you are using the same paper and have not changed any of the consumables you should do the following:

1. Clean LED head with lens cleaner or soft tissue.
  1. Remove the toner cartridge and give it a few shakes then reinstall it.
  2. The Toner Could be low so Change toner cartridge.
4. Make sure that the paper is not damp as this will cause fading and poor quality printing and images.
  1. The image drum may have been light contaminated so remove it from the printer and store it in a totally dark place for several hours then reinstall it.
  2. If the image drum is dirty then wipe it very gently with soft tissues, being careful not to scratch it.
  3. Open the top cover and check to be sure that each toner cartridge is fully seated and that each toner cartridge lock lever is pushed all the way back.
  4. Press the top cover release latch and open, then close, the cover.
  5. Check MEDIA MENUTRAY1 MEDIA TYPE and set as required. Do the same for TRAY2 and MPT.
  6. Check MEDIA MENUTRAY1 MEDIA WEIGHT and set as required. Do the same for TRAY2 and MPT.
  7. Possibly set the value of media weight in the menu to the next heaviest one.
  8. Check PRINT MENURESOLUTION setting and set to 600 x 1200DPI
  9. Check PRINT MENUTONER SAVE MODE and make sure this is OFF
  10. Check PRINT MENU – MONO PRINT SPEED and make sure this is set to MIXED SPEED
  11. Check the COLOUR MENU – DENSITY CONTROL and set this to AUTO
  12. Check the COLOUR MENU – AUTO DENSITY and set this to EXECUTE
  13. Check the COLOUR MENUCMY 100% DENSITY is set to ENABLE if you want a glossier black finish.

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It is unlikely that the sudden appearance of a green hue is due to the printhead or drivers going belly up. If the images on photo paper are OK when using the plain paper setting but have a severe green/blue hue when using the higher photo settings it is likely that the photocyan cartridge has been contaminated with cyan ink. Throw the contaminated PCyan cartridge away and fit a guaranteed photocyan cartridge (OEM or compat). Carry out a deep clean and run several plain papers through on a high photo setting. The green hue will gradually disappear.

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