Archived from groups: comp.periphs.printers,alt.comp.periphs.printers (
More info?)
<william.pease@verizon.net> wrote in message
news:1126823318.581931.326310@g47g2000cwa.googlegroups.com...
>I agree with Ed that printing by a laser printer, whether black&white
> or color, shouldn't smudge at all because the toner is fused to the
> paper by a flash of intense heat that "melts" the toner to the paper
> and hardens in an instant.
>
> However, some prints from an inkjet printer can smudge immediately
> after printing, and when the prints are photos from some printers, it
> may take hours before the print is reliably smudge-free. Inkjet prints,
> whether photos or text, can also easily smudge and run when dampened
> with a wet finger or a drop of water, which is not true of prints from
> laser printers.
>
> I've had both laser and inkjet printers (Brother & Canon respectively)
> and they worked this way.
>
> Laser printers are more reliably smudge-free, but I have also heard
> that prints from a laser printer may stick together if pressed together
> for a while, for instance, in a laser-printed book where the pages are
> compressed together for a long time. Is this true? Does anyone have any
> experience with laser-printed book pages sticking together in the long
> run?
> Is it true or not?
Laser printed pages can stick together if the toner was poorly made or is of
low quality. It can stick toner-to-paper or toner-to-toner in a duplex
printed document as in a bound book. Most reputable manufacturers test for
these faults [called document offset in the industry] by making a special
print target then pressing a number of pages together under a reasonable
pressure while heating above room temperature. A wax in the toner reduces
document offset by providing "release". Some paper substrates are worse
than others as their coating can interact with the toner.
mike
>
>
> Ed Ruf wrote:
>> On 15 Sep 2005 14:35:46 -0700, in comp.periphs.printers "Nehmo"
>> <nehmo54@hotmail.com> wrote:
>>
>> >By "smudge", I mean what happens when the ink remains somewhat
>> >smearable on the paper after, perhaps even some time after, a good
>> >print has been made - like when a thumb can smear the ink.
>> >
>> >Inkjet ink sometimes smudges. I've never owned a color laser printer.
>> >Is laser ink ("toner" perhaps is the term?) more stable on the
>> >paper? That is, is it less likely to smudge?
>>
>> If the toner is properly fused to the paper, it shouldn't smudge at all.
>> ----------
>> Ed Ruf Lifetime AMA# 344007 (Usenet@EdwardG.Ruf.com)
>>
http://EdwardGRuf.com
>