I have replaced the colour ink cartridges in my HP Photosmart 8450 printer ( the black cartridge was o.k., I believe) but my colour prints are coming out incorrectly - i.e. overexposed or lacking saturation.
I have been told to direct the computer to clean the printer heads but cannot find this tab or page. I am using Windows Vista. Is this what I should be doing? And if so, how do I access this command?
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Re: colour prints not satisfactory
D_foofat, This link will take you to instructions on cleaning your Cartridge Print Head: http://h10061.www1.hp.com/ccsearch/search?method=viewDocument&redirUrl=http%3A%2F%2Fh10025.www1.hp.com%2Fewfrf%2Fwc%2Fdocument%3Fdocname%3Dc00285228%26cc%3Dus%26lc%3Den%26dlc%3Den%26product%3D402150%26dlc%3Den%26lang%3Den&docId=document%28c00285228%29&uqry=&cqry=clean+printhead&ctry=us&dlc=en&lang=en&qry=clean+print+head I hope it helps, and Good luck.
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To replace the print cartridges 1. Make sure the HP All-in-One is on. Caution If the HP All-in-One is off when you open the print cartridge door to access the print cartridges, the HP All-in-One will not release the cartridges for changing. You might damage the HP All-in-One if the print cartridges are not docked safely on the right side when you try to remove them. 2. Open the print cartridge door. The print carriage moves to the far right side of the HP All-in-One. 3. Wait until the print carriage is idle and silent, and then lightly press down on a print cartridge to release it. If you are replacing the tri-color print cartridge, remove the print cartridge from the slot on the left. If you are replacing the black or photo print cartridge, remove the print cartridge from the slot on the right. 4. Pull the print cartridge toward you out of its slot. 5. If you are removing the black print cartridge in order to install the photo print cartridge, store the black print cartridge in the print cartridge protector or an airtight plastic container. If you are removing the print cartridge because it is low or out of ink, recycle the print cartridge. The HP Inkjet Supplies Recycling Program is available in many countries/regions, and lets you recycle used print cartridges free of charge. For more information, go to the following website: www.hp.com/hpinfo/globalcitizenship/environment/recycle/inkjet.html 6. Remove the new print cartridge from its packaging and, being careful to touch only the black plastic, gently remove the plastic tape by using the pink pull tab. 7. Slide the new print cartridge forward into the empty slot. Then gently push on the upper part of the print cartridge forward until it clicks into the socket. If you are installing the tri-color print cartridge, slide it into the left slot. If you are installing a black or photo print cartridge, slide it into the right slot. 8. Close the print cartridge door 9. If you installed a new print cartridge, the print cartridge alignment process begins. 10. Make sure you have plain paper loaded in the input tray, and then press OK. 11. The HP All-in-One aligns the print cartridges. Recycle or discard the print cartridge alignment sheet. 12. Press OK.
Try opening the printer properties and cleaning the print heads (should probably be done each time a cartridge is changed), it uses some ink up but should clean the build up from running the previous cartridge dry and hopefully solve your printing problem.
Check that your black ink cartridge has ink inside, eventually try a new cartridge , as ink may have dried up in old cartridge. If you use a new cartridge ensure you removed cellotape from cartrige. If cartridge is ok, then it is printer nozzle/head for black ink. In this case do nozzle check / head cleaning in printer tools a couple of times. If problem persist you may need to check and clean printer's head with cotton and solvent.
It sounds like the color ink cartridge is clogged. You can try taking the color cartridge out, and take a paper towel and some windex with amonia. Spray the paper towel with the windex and then take the color cartridge, and wipe the bottom of the ink cartridge. After wiping the bottom of the cartridge, try pressing on the bottom of the cartridge (Print head) with the paper towel...You should start seeing some ink soaking into the paper towel. If you do not see any ink on the paper towel, then try wiping it again with the windex/paper towel. If after a couple tries, you can not get the ink to flow from the print head, then I would suggest getting a new cartridge.
The HP ink cartridges can get a bit tricky and the print heads will clog when the printer is left sitting for a long period of time.
Hope this helps.
Good luck. If you have any other questions, feel free to post them.
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Thanks for getting back to me. Sorry this ain't a solution but it seems to be the only cash-free way to contact you. No problem not solved - though I have tried everything. Dismantled the printer; washed, dried and replaced the waste ink pads; washed the print head; blew compressed air through the print-head sponge; replaced the cartridge 3 times; printed hundreds of test prints. I can't think of anything else to do and so I think the only solution is to replace the printhead (probably not even available) or replace the printer. The latter is looking most likely.
Just to confirm pls: 1. the new print cartridges are original HP inks; 2. you have remove the bright pink tape from the ink cartridges; 3. the black is on the right side and the color is on the left side.
You can try removing both cartridges and clean the gold colored contacts where the pink tape was. Pls do the same to the mate pins in the cartridge holder in the printer.
Try again. If this does not be corrective, you may need to change inks again.
Hope this be of help/idea. Pls post back how things turned up or should you need additional information.