(Message rs1:8) Return-Path: Received: by mit-jason (4.12/4.7) id AA01709; Wed, 13 Feb 85 13:14:28 est From: lbm (Linda B Merims) Message-Id: <8502131814.AA01709@mit-jason> Date: 13 Feb 1985 1314-EST (Wednesday) To: beth Cc: et, lbm Subject: How to Dump Screens to Letterwriters This is what I got from Mark Levine: The whole thing is accomplished by connecting the Letterwriter to the terminal's printer port. He knows that vt240's and vt241's have printer ports. This is the only terminal he is sure works. It's an RS232 line, but the connector on the vt240 end is non-standard. He thinks the vt125's also have printer ports, but has never looked into it. Flow control must be on everywhere. The Letterwriter must be set-up properly. Set-up is intricate. The most important setting is baudrate, which should be set at 9600. I have some further information (a dump of how his letterwriter is set-up). The VT240's "Printer" set-up screen must be set properly. The correct settings are: 9600 baud* Printer to Host* Normal print mode Xoff* 8 bit, no parity 1 stop bit print full page ascii/UK only No terminator The *'s are the ones most critical and most likely to be wrong. You can print either: Just the text on the screen: F2 (print screen button) The text and the graphics: SHIFT-F2 If you print just the text, it comes out in whatever default text size is set for the letterwriter, currently a 10-pitch Pica. If you print graphics and text, it comes out in a smaller, bit-map screen dump size (qua bits vs qua characters). There is a third key sequence that you can type: CTRL-F2 You are likely to do this by mistake. If you do it by mistake, you will not be able to dump graphics screens. To get back to where you want to be, type CTRL-F2 again. You might want to type CTRL-F2 deliberately. If you do, the printer will go into a mode wherein it types each new text line on the screen when you hit the RETURN. It is thus a way to make a history record of everything you type. I am not sure if it would print out the machine's responses, as would be necessary for a real history scenario. Supplies The LA100's have a special ribbon. He does not know if Eva has ordered a supply of them. He believes that we are presently out of them. Best bet, call the Hardware Hotline, 3-1410. He was surprised to learn they'd gone into the clusters.