Repost: problems with Scotchmark and laser printers

Repost: problems with Scotchmark and laser printers

Post by rebe » Sat, 23 May 2009 16:15:45



Follow-on ....

tried again on the Fuji-Xerox machine. Image on paper was fine as expected,
then on the Scotchmark it failed with repeats of the image. Took about ten
pages of paper after that to clear the "image" (toner) off the ?transfer roller.

Is this a case of a fuser not able to rewach the required fusion temp because of
the nature of the medium?
 
 
 

Repost: problems with Scotchmark and laser printers

Post by Arthur Ent » Sat, 23 May 2009 23:05:18

It could be that the Scotchmark is unable to pick up enough of the
toner, leaving a lot of the drum which then gets transferred onto a
slightly later part of the page.

In theory, the drum wiper should clear the excess toner off the drum,
but I have found certain media doesn't hold the toner well and creates
these "ghost images sometimes.

Adhesive fails over time, so if you have either an older batch or a bad
batch (sometimes it isn't made properly either) that can cause issues,
and it may be the consumable at fault.


Art

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Repost: problems with Scotchmark and laser printers

Post by rebe » Sat, 23 May 2009 23:40:30

On Fri, 22 May 2009 07:05:18 -0700, Arthur Entlich < XXXX@XXXXX.COM >



I suspect it is picking up a normal-ish amount but that it isn't
fusing/adhering properly to the medium. But that infers - as you stated - that
the wiper isn't clearing it all, as that is why the ghosting occurs.


The media was "tested" by the supplier who also printed my image perfectly on
his company laser on one of the sheets in the last resupply just before my first
post. Also this is a single A4 sheet, not mutiple labels on a backing sheet. so
adhesive is only ever going to be present at the page edges anyway. The
adhesive sticks to the target like "s##t to a blanket" when the backing paper is
removed. This stuff is fairly high quality, hence the price of >$A3 per A4
sheet, which is why I am annoyed at the 100% wastage.

Thanks for your input.