I would like if that's possible to overprint an inkjet print with a laser one in order to put a toner only in some areas and process this multi layered paper with additional finishing after.
I've already read this:
Most inkjet papers have a special coating on them to help the paper absorb the right amount of ink. If the ink is allowed to sink too far into the paper it can “feather” or spread out, making the image look fuzzy. High quality inkjet paper are coated to keep the ink at an optimal level for crisp, clean prints from an inkjet printer. This very coating that helps your inkjet prints come out clean and sharp keeps laser toner from adhering to the paper.
Laser printers don’t use ink to print, they use toner. The toner is rolled onto a drum then heated and applied to the paper where it melts to form your document. If the coating is slick enough the toner just wont stick very well to the coated inkjet paper. Watch out! The inkjet paper coating can also melt in the laser printer which can damage your laser printer. Some of the coatings have polyester properties that can melt in the heat of the laser printer. The melting coating can damage the laser printer’s fuser, drums, and many other parts of the printer.
These parts are costly to fix and some parts of your printer may be beyond all repair which will result in you having to purchase a whole new printer. These warnings are not only for matte inkjet papers but for glossy papers as well. Using glossy inkjet paper in a laser printer can be worse than using matte inkjet paper in a laser printer because the glossy paper usually has more coating than the matte papers.
Now I'm not considering Inkjet Coated Papers, but normal uncoated papers usable technically both by inkjet and lasers.
My questions are:
Could an Inkjet printer be ruined by the presence of toner on the paper surface? Can an inkjet printer overprint safely a laser print with also a thick toner density ?
Could a Laser printer be ruined by the presence of inkjet ink on the paper surface? Do the acquous inkjet both pigmented or dye ruin fuser, rollers, developers, drums, belt and so on once heated to the needed temperature in order for a laser printer to print? About 220 °C if I recall correctly maybe the ink could boil and burn under these temperatures. TL;DR: I don't want to ruin a copier or a production machine with some tests unless someone help me in the choice :D
Let's say that the safest way is to print first in the laser machine and then in the inkjet, the laser toner would be covered in ink. This could create problems if one want to post finish the part like with foil or something else that use toner in order to stick ?
Thanks for the replies