Retired <> wrote:
> Retired <> wrote in
> news:Xns9EC0ED164AEF9butter@wefb973cbe498:
>
> > Peter <> wrote in
> > news::
> >
> >> On 07/04/2011 02:17, Retired wrote:
> >>> I have a Canon Selphy 720 photo printer. I love the photo quality
> >>> prints it makes. And I'm sure there's lots of other photo printers
> >>> that are probably even better. But what I want to print is full
> >>> letter-sized (8-1/2 X 11) photos on the same type of paper with the
> >>> same "permanent" type results. No smear. No worry about it getting a
> >>> drop of water on it. Like a real photograph.
> >>>
> >>> I've got two inkjet printers and all kinds of glossy paper, but they
> >>> don't yield "indelible" photos. Those prints either have to be
> >>> framed or laminated to protect them.
> >>>
> >>> So what am I looking for?
> >>>
> >> I think your only option is a thermal dye transfer printer, probably
> >> $$$ in letter size. I don't think any inkjet even with pigment inks
> >> can give water resistant results without after-treatment.
> >
> > I'm curious how this Selphy printer works. It has an ink cartridge.
> > Each print makes 4 passes; each adding different colors. After the
> > third pass the picture is complete. I'm assuming that the 4th and
> > final pass is what "seals" it.
> >
> > This is all guesswork, of course. But whatever it does, it looks like
> > it could be made double the size and do the same thing in 8 X 12 that
> > it does in 4 X 6. I don't remember how much I gave for this one but
> > I'm thinking it was only around $50 or so
>
> I found this about a Selphy CP740. Mine's a CP720 but this would apply.
>
> "The CP740 uses a CMYO ink ribbon; that stands for cyan, magenta, yellow,
> and overcoating, a laminate that protects the photo from discoloration."
>
> So that explains the 4th pass and the water proofing. The description
> also describes it as a "dye-sub" type printer. The initial description...
>
> "The Canon Selphy CP740 is a compact photo printer that employs dye-
> sublimation, a printing process that uses heat to transfer images onto
> printable surfaces".
>
> I can't understand why someone just doesn't make a *big* one!
If your printer uses ribbons then it's probably dye sublimation printer
*not* inkjet printer. I don't own any but I believe the number of passes
just increasing/adding more dot/ink to make the image look better.
Your type of printer will apply a tin coat of ink on top of paper, so it
should be able to stand some light spray of water. I guess it probably
handle the water a little better (not much) than regular photolab print.
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