Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!vsi1!apple!parent
From: parent@Apple.COM (Shean Parent)
Newsgroups: comp.sys.mac.programmer
Subject: Re: LSP Printing Anomoly (Minor)
Summary: ImageWriter timing out
Keywords: LSP printing sources
Message-ID: <22124@apple.Apple.COM>
Date: 13 Dec 88 22:00:28 GMT
References: Source File listings <1198@fai.UUCP>
Distribution: na
Organization: Apple Computer Inc., Cupertino, CA
Lines: 17

In article <1198@fai.UUCP>, dalea@fai.UUCP (Dale M. Arends) writes:
> While printing a source file to my Imagewriter I, if the listing is over two
> pages in length, immediately after the first form feed, and occasionally after 
> later form feeds, the system thinks the printer is not responding and puts up O
> an Alert telling me to check the printer and click OK when it is ready.  If I 
> then click OK, even without touching the printer or cables, the printing 
> continues.

This is caused by the Mac timing out waiting for the ImageWriter. The Mac is
sending data much faster then the printer can respond and so the Mac gets told
to wait. After about 30 seconds of waiting the Mac times out and puts up the
alert. There is currently no work around to this problem but you could find
where this value is stored and patch it. (I would try do an ATB on write
from MacsBugs with a conditional statment to make sure that the proper port
is being addressed and then look at the surounding code to see who is checking
tickcount and what value they are comparing it to).

Sean