[hylafax-users] introducing faxing in extra-fine resolutions with HylaFAX

[Lee Howard <faxguy@howardsilvan.com>]

HylaFAX can now send and receive in extra-fine resolutions with both 
Class 1 and Class 2 modems.

In 1995 ITU T.32 (and before that, T.30 in 1993) documented standard 
"extended" faxing resolutions of 200 x 400 dpi (R8 x 15.4 l/mm), 300 x 
300 dpi, and R16 x 15.4 l/mm (400 x 400 dpi).  These, in effect, 
allowed fax machines to send and receive in resolutions of up to twice 
the previous resolutions.  These newer resolutions are sometimes 
commonly called "superfine", "ultrafine", and "hyperfine".

Since that time, traditional fax machines have begun to support these 
fax features.  I know that some machines have supported it since at 
least 1998.  In my recent polling of approximately 1000 fax receivers, 
nearly 50% (half) of them supported receiving in one or more of these 
extended resolutions.  However most Class 2 modem firmwares have, until 
just recently, not supported these resolutions, and all fax software 
supporting analog modems in Class 1 of which I am aware (including 
HylaFAX until now) have not supported these resolutions, either.

As an independent computer consultant trying to promote HylaFAX to 
small businesses, I found it embarrassing when my clients would compare 
some faxes received by stand-alone fax machines such as an HP OfficeJet 
against those received by HylaFAX.  The HP OfficeJets and Panasonic 
Panafaxes have long-since supported extended resolutions now (and 
probably others), and I found it increasingly difficult for HylaFAX to 
"stand up" against the stand-alone fax machine within industries that 
regularly required high-resolution faxing due to the use of "fine 
print" (real-estate, finance, insurance, and legal businesses are good 
examples).

I am happy to now offer to my clients a version of HylaFAX that does 
support these extended resolutions.  If you are using HylaFAX with a 
Class 1-capable modem or a Class 2 modem(*) that supports extended 
resolutions within its firmware and are interested in supporting 
extended resolutions, then please e-mail me privately (off-list).

(* Normally such a modem would be said to support "Class 2.1", and the 
only *analog* modems that I know of that do support these resolutions 
in Class 2 are some of the MultiTech 5634 series.  I do know that some 
ISDN and digital modems also support these resolutions.)

If you would like to see some examples of superfine and hyperfine 
facsimile images received (and sent) by HylaFAX, please take a look at 
http://www.howardsilvan.com/HylaFAX/resolutions.php (you'll need a TIFF 
viewer).

Thanks.

Lee.

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