Re: [hylafax-users] Some TIFF's have bad pages

[Dustin Puryear <dpuryear@usa.net>]

At 09:55 AM 4/26/2002 -0700, Lee Howard wrote:
>On 2002.04.26 06:46 Dustin Puryear wrote:
>>At 08:32 AM 4/26/2002 +0200, Bernd wrote:
>>though because I've been told that "this didn't happen before Hylafax."
>
>Well, that's interesting because I've had CQ problems (scrambled faxes, 
>"unsupported compression", corruption, etc) when using any of a horde of 
>Windows applications as well as when just using a "plain fax machine".
>cqtest does have some imperfection, as well as many Class 2/2.0 firmwares, 
>and in cases where there have been problems, passing the TIFF through 
>tiffcp or ImageMagick's convert resolved the issue.

I did not believe it to be a Hylafax issue. However, I needed a bit more 
detail in order to defend my position. Thanks!

>>So, I'm in the situation where the users believe the problem is either 
>>Hylafax or the Multitech modem cards.
>
>Some modems' firmware can cause problems with CQ, true.  I've seen it 
>happen on USR Sportsters, USR Couriers, some Rockwell implementations, and 
>some MultiTech modems.  Again, in these cases switching to HylaFAX-based 
>checking (switching to Class 1) helped, and then using tiffcp or convert 
>corrected any further problems.

Well, that's interesting. When we first began to use Hylafax we setup our 
cards using Class 2. It's been a while, but I remember we had some kind of 
problem with some faxes. When we backed down to Class 1 the problem went away.

So in Class 1 the error checking is almost primarily done by Hylafax?

>If you're having tiffcp generate corrupted tiffs from a corrupted tiff, 
>then you should bring the issue up with the libtiff folks.

Will do. Thanks!

Regards, Dustin


---
Dustin Puryear <dpuryear@usa.net>
UNIX and Network Consultant
http://members.telocity.com/~dpuryear
PGP Key available at http://www.us.pgp.net
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