Laser vs inkjet when for greyscale`

measekite wrote:
> Bob Williams wrote:
>
> >
> >
> > harryguy082589 DeleteThis @gmail.com wrote:
> >
> >> Hi,
> >>
> >> I run a detal prtice and i am begining to digitize my x-ray system,
> >> somebody told me that i should buy an inkjet printer over a laser
> >> printer because inkjets have better quality greyscale images. Is this
> >> true?
> >>
> >
> > I think you will get more CONSISTENT results(if slightly less
> > resolution) from a B/W laser printer.
> > The toner is a fixed color, exactly the same each time.
> > A color inkjet printer forms black from a mixture of Cyan, Magenta,
> > and Yellow (perhaps some black too).
>
>
> Not quite true. The Canon ip4200/5200 has a separate pigmented black
> cart for text and uses a dye based black for photos.
>

They are not talking about text. Your an IDIOT.

Another useless post. Almost 6000 useless post this year alone.
 >> Stay informed about: Laser vs inkjet when for greyscale` 

Bob Williams wrote:

>
>
> harryguy082589.RemoveThis@gmail.com wrote:
>> Hi,
>>
>> I run a detal prtice and i am begining to digitize my x-ray system,
>> somebody told me that i should buy an inkjet printer over a laser
>> printer because inkjets have better quality greyscale images. Is this
>> true?
>>
>
> I think you will get more CONSISTENT results(if slightly less
> resolution) from a B/W laser printer.
> The toner is a fixed color, exactly the same each time.
> A color inkjet printer forms black from a mixture of Cyan, Magenta, and
> Yellow (perhaps some black too).

You're overgeneralizing. Some color inkjets have more colors than that,
some have two shades of gray in addition to black, some use CMYK instead of
CMY. Some lasers use CMY to form black.

> Over time the greyscale may get biased
> toward one of the colors.

If this is mission critical then one checks calibration periodically and
either fixes the problem or recalibrates. Far as I know a slight tint is
not nearly the obstacle to x-ray interpretation that inadequate tonal range
would be.

> If one of the nozzles gets slightly clogged,
> the grey will be biased.

The nozzles don't get "slightly clogged" as a rule.

> Even if you use your inkjet in Black Only mode,
> the greyscale may become slightly biased as the color density changes.

Huh?

> Also, in MOST inkjet printers the color is produced with water soluble
> dyes. An inkjet image can be ruined if it gets wet. Finally, except for
> pigment based inks the image can fade with time.

Read what the OP wrote--he's digitizing, not printing for archival storage.

> B/W Laser Printers use
> carbon black as the pigment and things don't get much blacker or
> permanent than carbon.

Which is fine if you're trying to make something black and permanent.

If one wants to do this _right_ one gets a purpose-made x-ray printer that
prints on dry-process film and not on paper.

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)
 >> Stay informed about: Laser vs inkjet when for greyscale` 

Bob Williams wrote:

>
>
> harryguy082589 DeleteThis @gmail.com wrote:
>
>> Hi,
>>
>> I run a detal prtice and i am begining to digitize my x-ray system,
>> somebody told me that i should buy an inkjet printer over a laser
>> printer because inkjets have better quality greyscale images. Is this
>> true?
>>
>
> I think you will get more CONSISTENT results(if slightly less
> resolution) from a B/W laser printer.
> The toner is a fixed color, exactly the same each time.
> A color inkjet printer forms black from a mixture of Cyan, Magenta,
> and Yellow (perhaps some black too).


Not quite true. The Canon ip4200/5200 has a separate pigmented black
cart for text and uses a dye based black for photos.

> Over time the greyscale may get biased toward one of the colors. If
> one of the nozzles gets slightly clogged, the grey will be biased.
> Even if you use your inkjet in Black Only mode,
> the greyscale may become slightly biased as the color density changes.
> Also, in MOST inkjet printers the color is produced with water soluble
> dyes. An inkjet image can be ruined if it gets wet. Finally, except
> for pigment based inks the image can fade with time. B/W Laser
> Printers use carbon black as the pigment and things don't get much
> blacker or permanent than carbon.
> Bob Williams
>
 >> Stay informed about: Laser vs inkjet when for greyscale` 

J. Clarke wrote:

> Bob Williams wrote:
>
>
>>
>>harryguy082589@gmail.com wrote:
>>
>>>Hi,
>>>
>>>I run a detal prtice and i am begining to digitize my x-ray system,
>>>somebody told me that i should buy an inkjet printer over a laser
>>>printer because inkjets have better quality greyscale images. Is this
>>>true?
>>>
>>
>>I think you will get more CONSISTENT results(if slightly less
>>resolution) from a B/W laser printer.
>>The toner is a fixed color, exactly the same each time.
>>A color inkjet printer forms black from a mixture of Cyan, Magenta, and
>>Yellow (perhaps some black too).
>
>
> You're overgeneralizing. Some color inkjets have more colors than that,
> some have two shades of gray in addition to black, some use CMYK instead of
> CMY. Some lasers use CMY to form black.

Note that I said "I think you will get more CONSISTENT results (if
slightly less resolution) from a B/W laser printer".
AFAIK, no B/W laser printer uses CMY to get Black.


>>Over time the greyscale may get biased
>>toward one of the colors.
>
>
> If this is mission critical then one checks calibration periodically and
> either fixes the problem or recalibrates. Far as I know a slight tint is
> not nearly the obstacle to x-ray interpretation that inadequate tonal range
> would be.
>
>
>>If one of the nozzles gets slightly clogged,
>>the grey will be biased.
>
>
> The nozzles don't get "slightly clogged" as a rule.

Maybe not as a rule but I just finished running a little isopropyl
alcohol thru the magenta nozzles of my Canon Pixma 4000 after I noticed
that my prints were developing a slight greenish cast.
It worked like a champ. Colors are now true. Some magenta was getting
through but not enough


>>Even if you use your inkjet in Black Only mode,
>>the greyscale may become slightly biased as the color density changes.
>
>
> Huh?

Try it some time.
Create a Black-to-White gradient in PhotoShop and print it.
The darkest part of the gradient looks truly black but the lightest end
of the gradient has a noticeable tint. The tint depends on the brand of
ink used.
Apparently Black dye is not really pure Black. It is some mixture of
dyes that looks black when the dots are concentrated but show a slight
tint when the ink droplets are far apart.


>>Also, in MOST inkjet printers the color is produced with water soluble
>>dyes. An inkjet image can be ruined if it gets wet. Finally, except for
>>pigment based inks the image can fade with time.
>
>
> Read what the OP wrote--he's digitizing, not printing for archival storage.

Digitizing for the purpose of Printing.
He wants to know the Pros and Cons of Inkjet vs Laser printers.

>>B/W Laser Printers use
>>carbon black as the pigment and things don't get much blacker or
>>permanent than carbon.
>
>
> Which is fine if you're trying to make something black and permanent.
>
> If one wants to do this _right_ one gets a purpose-made x-ray printer that
> prints on dry-process film and not on paper.

And the price of such a device would be.......?
Bob Williams
>
 >> Stay informed about: Laser vs inkjet when for greyscale` 

"Bob Williams" <mytbob DeleteThis @cox.nospam.net> wrote in message
news:rZgng.5928$6w.1279@fed1read11...
>
>
> harryguy082589 DeleteThis @gmail.com wrote:
>> Hi,
>>
>> I run a detal prtice and i am begining to digitize my x-ray system,
>> somebody told me that i should buy an inkjet printer over a laser
>> printer because inkjets have better quality greyscale images. Is this
>> true?
>>
>
Did you want to print out digital xray images? I've scanned conventional
dental xrays (as a positive transparency) on an Epson 3170 scanner at 300
dpi into photoshop elements 3, cropped to the image size I wanted to print,
and printed them on either glossy photo paper or on coated inkjet paper. I
did this on a Canon i960 (six color printer no longer available) and a canon
ip5000 (four color carts plus a pigment based black for text). I used the
setting for either matte photo paper or glossy photo paper. Plain paper
settings on the ip5000 (or ip4200, ip5200, etc) would use the pigment based
ink tank. The scan and printing were done in color and the slight blueish
cast from the xray printed pretty true. I also tried printing it on an HP5p
(mono laser printer about 10 years old, but still working as new). Much
better print on the inkjet.

Is this for insurance submissions or communication withg referrers? I am
retired from specialty dental practice, but I set this up for a friend who
still practices general dentistry. Some specialists encorporate xray images
in the body of a letter to their referring dds when describing treatment
such as completed endodontic care. Just remember that the image quality
will not be adequate with plain paper. It is absolutely necessary to print
on coated inkjet paper or glossy photo paper for excellent contrast and
definition.
 >> Stay informed about: Laser vs inkjet when for greyscale` 

This message is not archived
 >> Stay informed about: Laser vs inkjet when for greyscale` 

Well put... a bit like Memento (the movie)

Art

M Berger wrote:

> It also doesn't mean that what you have to say is
> meaningless but odds are good that I won't read it.
>
> I think we all understand that it's possible to read
> bottom-posted messages with extra effort. I just
> question why anybody here thinks that what they have
> to say is so important that it's worth the extra time
> and effort?
>
> Imagine holding a conversation where one of the
> participants insists on repeating everything said
> up to that point before he adds something new. That's
> what bottom-posting is.
>
> ColinD wrote:
>
>> Not snipping does not invalidate bottom posting. As for your mice, does
>> your keyboard not have a PageDown key?
>>
>> Colin D.
>>
 >> Stay informed about: Laser vs inkjet when for greyscale` 

On 7/1/06 5:03 AM, Michael J Davis posted the following:
>
> Mike
>
> the laser v inkjet for greyscale printing. Have I missed the bus?

Indeed, yes, you missed both the bus and the boat.

--
lsmft
 >> Stay informed about: Laser vs inkjet when for greyscale` 

"John McWilliams" <jpmcw DeleteThis @comcast.net> wrote in message
news:2L2dndfEA9RIFjvZnZ2dnUVZ_tednZ2d@comcast.com...
> On 7/1/06 5:03 AM, Michael J Davis posted the following:
>>
>> Mike
>>
>> the laser v inkjet for greyscale printing. Have I missed the bus?
>
> Indeed, yes, you missed both the bus and the boat.
>
> --
> lsmft

well its a good job he did then, the bus was too heavy for the boat and the
boat sunk ..
 >> Stay informed about: Laser vs inkjet when for greyscale`