home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.dcom.fax
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!pasteur!oxford.cs.berkeley.edu!sam
- From: sam@oxford.cs.berkeley.edu (Sam Leffler)
- Subject: Re: Need syntax to set T.30 session subparam code VR to 1
- Message-ID: <1992Nov20.162022.26846@pasteur.Berkeley.EDU>
- Sender: nntp@pasteur.Berkeley.EDU (NNTP Poster)
- Nntp-Posting-Host: oxford.berkeley.edu
- Reply-To: sam@oxford.cs.berkeley.edu (Sam Leffler)
- Organization: Silicon Graphics, Inc.
- References: <RWIFALL.92Nov19225427@dante.nmsu.edu> <ANDERSON.92Nov17142813@zymurgy.bms.com>
- Date: Fri, 20 Nov 1992 16:20:22 GMT
- Lines: 44
-
- In article <RWIFALL.92Nov19225427@dante.nmsu.edu>, Richard J Wifall writes:
- > In article <ANDERSON.92Nov17142813@zymurgy.bms.com>
- anderson@zymurgy.bms.com (Jay Anderson) writes:
- >
- > > My SupraFAXmodem v.32bis comes up expecting to send normal 98 lpi
- bitmaps.
- > > Using fax-3.2.1, and ghostscript with the driver=faxhigh parameter, I'm
- > > generating the fine 196 lpi bitmaps. I know that I could use device=faxlow
- > > but I don't want to.
- >
- > > What is the correct AT+F synatax to what I want (so I can modify lib/libfa
- > Well, it's not quite that easy. First of all, are you sure
- > that the fax you are sending too is capable of receiving the fine
- > quality? If it isn't, then you are out of luck. Secondly, it's not a
- > simple AT+F command. The actual resolution is negotiated based on the
- > capabilities of the sending and receiving machines during the "faxing"
- > process. So it also depends whether you are doing class 1 or class 2
- > commands. I will assume that you are using class 2 commands (I am not
- > familiar with fax-3.2.1 but I assume that is what it uses)
- > The class two command is: AT+FDCC:VR,BR,WD,LN,DF,EC,BF,ST
- > Where VR = vertical resolution ( 0=normal, 1=fine)
- > BR = Bit rate
- > WD = Page Width
- > LN = Page length
- > DF = Data compression format
- > EC = Error Correction
- > BF = Binary File Transfer
- > ST = Scan Time
- > You probably will want to do AT+FDCC:1,5,0,2,0,0,0..
-
- The set of parameters and the order that you give is correct, but you
- want to use the +FDIS command and to set the values you need to
- use +FDIS=VR,BR,WD,LN,DF,EC,BF,ST. Also, since you just want
- to change the VR parameter, you can leave off the trailing parameters
- (they should not be changed) and so all you need is +FDIS=VR.
-
- Sam
- ---
- Sam Leffler Voice: (415) 390-1269
- Silicon Graphics, Inc. Email: sam@sgi.com
- Research & Development, 7U-005 FAX: (415) 965-7824
- 2011 N. Shoreline Blvd
- Mountain View, CA 94039-7311
-
-