Just put the book on the platen and cover the open spaces around it from light. I do the Arrl Antenna Book often, and I get good results. Sometimes I can't even lower the cover at all, but the printer still works. Sometimes I scan a copy, if the image is going to be upside down, and then scan the copy to my hard drive.
There has been a topic or two other than about mobiles being discussed by the some who show us nothing but words, so I think I'll hang out right here until DB can show me some reliable info that proves the end of a 1/4 wave element is always near 35 ohms. Graph info is fine too DB.
I read some W8JI stuff on 1/4 waves, but with W8JI you always have to have total faith in what he says...because he never produces any significant modeling results. We're lucky if he shows us a pattern for some antenna out of the blue.
I found a couple of topics by Cebik that I printed out a long time ago that were talking about soil conditions, and another about 40 meter stuff, but now Cebik is a pay for site now, and I won't spend a dime to see his stuff anymore. He sometimes shows enough info for Eznec models he has done, but them good old free days are all over.
I'm going on the Internet an see what I can find there. It is common knowledge that everything on the Internet is true, so we'll see.
Words sometimes are not very convincing without some sign of work, and some results to support those words would always be informative...one way or the other.
To say again, the main reason I test base antennas only, is because unlike with testing mobiles...I can see and measure the only ground plane around the antenna. With a mobile that is not possible. You may be able to see what you think is the ground plane, but you cannot be for sure, and you can't change it without moving the antenna any way.
I know somebody out there with a mobile and a 1/4 whip on top can somehow show us guys from Missouri...that your setup shows us a feed point impedance of about 35 ohms on all your installs.
I showed you guys my proof, and now I'm waiting on some evidence that will support your opinions. Isn't that fair?