Hi, I am printing colour onto 160 gm white card and the white areas always come out greyish, not looking clean. Within Printing Properties I change the paper type to Cardstock. Are there other settings that I should attend to? I do not have this problem when printing on paper. I will appreciate your URGENT comments. thank you
PS - I use a HP Color LaserJet 1600 - available in South Africa, not sure why it is not listed under your products.
160gm is too thick for the printer. Printing a couple of sheets should be okay, but more than that and you will damage the cartridges hence the "grey" haze. Check your printer specs -- max. gm on these printers is probably 105gsm.
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There are many possible causes. You'll have to do a bit of detective work to find your particular problem. you're either getting unwanted toner, or the printing process is being interrupted.
The photosensitive drum can get a mark or a spot or even a damaged area. This usually presents as a regular area which repeats, going down the print, rather than a streak It may be possible to clean the drum with a soft tissue -- perhaps with the addition of a little Isopropyl alcohol. If you have a replacement drum, try that. In most cases the drum is part of the cartridge, but not always. Loose toner in the system.
If your drum is leaking, or you've spilled some toner inside the printer (perhaps after shaking the cartridge to get more life out of it) the excess toner may cling to the paper in streaks and get fused onto it. The cure is a good vacuum clean of the insides.
Sometimes a small corner of a sheet of paper (or similar) can get caught in the workings of the printer, This can obscure part of the optical (especially with LED printers) and cause a blank streak in the printing. Dust and toner on the LED head can cause similar problems and fuzzy printing. Tissue and alcohol again!
Inkjet printer inks are dye-based, and that's the reason.
Perhaps this will help explain things. You know those little boxes of food colouring you can buy in the supermarket - the ones that have four little bottles of colour - red, blue, yellow and green. Within reason you can combine these to turn white icing into most colours. Use nothing and the icing is still white or use everything and the icing will go a black-brown colour. Use a couple of drops of red and blue and you'll get purple.
But if you start with black icing, there's nothing you can add that will make it anything but black.
It's the same with your inkjet printer - because white is obtained by not having any ink print on the white paper. But of course that only works when the paper is white. Naturally you'll get different results on all colours of paper, decreasing as the paper gets darker in colour. Print blue on yellow paper and you should get green printing.
The only way to print in white is to do what commercial printers do - use opaque inks and include a white ink in the process. And as far as I know there's no commercial ink that will do that with an inkjet printer.
I can hear lots of you muttering "Rubbish. Of course you can print light colours on dark paper." Well all I can say is, have fun experimenting, but you won't be able to do it.
About the only way to achieve the sort of result you may be after is to print the job then trim it and paste it in place. For instance, if you want to print onto a black or dark-coloured T-shirt then print onto white transfer material, trim the print to size and iron it in place.
Hi, The nozzle may be blocked. So take out the colour cartridge and place its nozzle in a bit of water for about 10 mins. Bring it out and dab the nozzle with folded paper. If the tissue is blotted with the three colour it means you have unblocked the nozzle. Try now to print after returning the colour cartridge. You may need to repeat to get good results. Thank you!!
Sometimes, printers use colors from the other cartridges in order to form a deep black colour. It does seem that not enough pure black ink is getting onto the paper.
Can you check that there is enough black ink remaining? If so, go to the print options of the program from which you are trying to printer the image, and set the colour output to black or greyscale only. This may be within an option called Printer Preferences from the Print dialogue window of the program from which you are printing from.
Then, print an image as a test and see if it comes out in black only this time.
Ask to print,when printer screen comes up go to properties on the top right then advanced on the bottom right (it'll ask if you really want this --you do) then on the bottom left there is a box to mark for black and white only
I found a solution to the Black printing problem :)
Under Printing Preferences: Set your Media Type to Photo Paper Pro.
We used edible ink cartridges and printed onto icing sugar paper. Same old... Just one day it refused to print black. In order to continue our small business, I degraded the color until I printed gray and not black.
Tonight, I browsed for the problem and came across this :)
Make sure the drums are properly seated in their cradels, and if posible, avoid designing with white small text in heavy solid areas that are made up of process colours. For reverse type in a black background, use spot color black rather than rich black. Other than than printing on a not as heavy card, that is about all you can do.