Somewhere, I read that one of the things that a thicker paper setting does on an HP printer is to slow down the paper feed to primarily prevent jamming. Then i would imagine that fuser temperature could also be altered as well based on the paper settings.
--- On Mon, 6/25/12, godzilera <yah.5.peteben@...> wrote:
From: godzilera <yah.5.peteben@...>
Subject: [Homebrew_PCBs] Re: Inconsistent scaling with Samsung ML-2165
To: Homebrew_PCBs@yahoogroups.com
Date: Monday, June 25, 2012, 12:59 PM
Hello everyone,
thanks for the responses.
I forgot to mention that I was only getting scaling problems in the 'Y' direction. Speed of the paper through the printer is what affects this scaling.
After a few tests, I have gotten much better results, at least with the HP photo paper. I figured that the inexpensive printer was struggling to drag the paper out of the bin and into the unit, especially since the paper path of this printer is not straight at all.
So, instead of printing my PCB design at the top of the page, I asked the driver to flip the page upside down, so that the design now comes out at the bottom.
I think the printer is struggling to pull out the page and slows down at the beginning. Once the paper hits the fuser, I think this stabilizes, and the bottom of the page comes out a the right speed. I think this is more pronounced with the thicker paper, as there is a one inch difference between the position of the PCB layout on a page of regular paper and photo paper. This seems to confirm that the thicker photo paper moves more slowly through the printer, at least initially.
Thanks,
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