Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!samsung!munnari.oz.au!brolga!bunyip.cc.uq.oz.au!marlin.jcu.edu.au!zlraa
From: zlraa@marlin.jcu.edu.au (Ross Alford)
Newsgroups: comp.periphs.printers
Subject: Re: Deskjet/writer Paper ? (actually: which side up?)
Message-ID: <1991May22.124705.8216@marlin.jcu.edu.au>
Date: 22 May 91 12:47:05 GMT
References: <980011@hp-vcd.HP.COM> <34726@mimsy.umd.edu> <91141.225012RFM@psuvm.psu.edu> <1991May22.063416.16020@csis.dit.csiro.au>
Organization: James Cook University
Lines: 22

In <1991May22.063416.16020@csis.dit.csiro.au> ken@csis.dit.csiro.au (Ken Yap) writes:

>>Hmmmm. I always wondered what that arrow on a ream package meant. One
>>additional question: which side of paper does a HP DeskJet print on?
>>The side facing *UP* in the paper trray, or the *DOWN* side?

>That's easy to find out empirically for any printer. Just make a slight
>pencil mark on one side of a blank sheet and run this page through the
>printer.

It's also easy to work out in a gedanken experiment--try to see if you
can puzzle out any way the thing could print on the top surface without
passing the paper through a spacewarp.  After puzzling on that for a
while accept the alternative hypothesis--it must print on the bottom
surface.  (this assumes you have a deksjet to look at while thinking).

Ross
-- 
Ross A. Alford
Department of Zoology                      Internet: zlraa@marlin.jcu.edu.au
James Cook University                      Phone:    +61 77 81 4732
Townsville, Qld 4811 Australia