mah@nestroy.wu-wien.ac.at (Michael Haberler) (05/09/91)
A couple of days ago I mentioned a Canon fax with RS-232 interface and a simple async protocol. Here's the information regarding the Canon document describing this product: Canon RS-232C Interface Kit for Fax-L 770 Technical Speciafications Publication H-IE-229, Canon 1990, Printed in Japan. I suggest you call your local Canon subsidiary. The local guys were very helpful. Caveat : I dont know if this is `the' Canon serial protocol, or just a solution for a single fax model. - michael -- Michael Haberler mah@wu-wien.ac.at, mah@awiwuw11.bitnet University of Economics and Business Administration Augasse 2-6, A-1090 Vienna, Austria Tel: +43 (222) 313-36 x4796 (9-18 CET) Fax 347-555
nazgul@alphalpha.com (Kee Hinckley) (05/11/91)
In article <1991May09.090143.2652@nestroy.wu-wien.ac.at> mah@nestroy.wu-wien.ac.at (Michael Haberler) writes: >Caveat : I dont know if this is `the' Canon serial protocol, or just a >solution for a single fax model. > It's been a while since I worked on this (I was did the conversion software for a (now defunct) product that hooked up PCs to the Canon). I believe there are some minor differences in the protocol between different models. We did the 710 and 910 I think. -- Alfalfa Software, Inc. | Poste: The EMail for Unix nazgul@alfalfa.com | Send Anything... Anywhere 617/646-7703 (voice/fax) | info@alfalfa.com I'm not sure which upsets me more: that people are so unwilling to accept responsibility for their own actions, or that they are so eager to regulate everyone else's.
craig@com50.c2s.mn.org (Craig Wilson) (05/11/91)
In article <1991May09.090143.2652@nestroy.wu-wien.ac.at> mah@nestroy.wu-wien.ac.at (Michael Haberler) writes: >A couple of days ago I mentioned a Canon fax with RS-232 interface and >a simple async protocol. >Caveat : I dont know if this is `the' Canon serial protocol, or just a >solution for a single fax model. It has been four years since I have worked with the Canon L-910 and L-710 fax machines with RS-232 interfaces. At that time, the protocols were different between the two machines. I did most of my work with the L-910. The problems at that time were that the L-910 could only receive at an effective 4800 bps. It wouldn't provide decent status codes at the right time. And, it would 'go to sleep' in the middle of a long transmission. The L-910 had its own modified compression algorithm for the fax going into/out of the serial port, too. If you do the math, 2 minutes to send a page to the fax machine plus another 1 minute to have the fax machine send the page to another fax machine, it can take a long time to fax a large document. We had a product in which we controlled up to 8 Canon L-910's from one PC, and the PC wouldn't ever really get bogged down. The L-910 could be used as a printer (and copier), but the font for the printing did not have true descenders for the lower case characters. Maybe, you could respond and let us know if Canon has improved their product in the areas I have described above. Especially, with respect to the transmission rate. /craig