User`s manual

substitute the word sccinteractive for sccbatch on the fifth line of the program.
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Troubleshooting
If, after following the above instructions, you still can't get the LaserWriter II to print
properly, try the following techniques:
1. Reset the printer. Turning the printer off and on resets its memory.
2. Reset each of the switches by moving it to the opposite position, waiting 30 seconds, and then
returning it to the desired position. If you've used any PostScript program, such as those
shown above, to change the printer settings, this returns control to the switches.
3. Check the version number of your software. If you're using an MS-DOS application program
that's supposed to work with PostScript, make sure you have a version that supports PostScript
and that you have the correct version of the printer driver.
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Pin assignments
Use the table to find or make a cable to connect the serial port on your MS-DOS computer to the
LaserWriter II.
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Pin CircuitDescription
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1 or 7* SGnd Signal ground
2* Txd Transmit data
3* Rxd Receive data
4RtsRequest to send
5 Cts Clear to send
6DSRData set ready
8DCD Data carrier detect
20 DTR Data terminal ready
22 Ring Ring indicator
* Your LaserWriter II needs only pins 1 (or 7), 2, and 3, but a connected device may
require the others. For example, to exchange information with an MS-DOS computer using the
DSR/DTR handshake, pins 6 (DSR) and 20 (DTR) on the RS-232 port of the LaserWriter II
must be connected to their counterparts on the serial port of the MS-DOS computer.
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Appendix D: How the LaserWriter II Works
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The LaserWriter II is a laser printer. It uses laser light, electric charges, and plastic toner
powder to produce each finished page of text and graphics.
When you give the Print command on your Macintosh, the computer sends a description of the
page through the LocalTalk cable system to the printer. It is sent in PostScript, the language the
printer uses to recreate the page.
The internal computer in the LaserWriter II uses these commands to create a full-page bitmap,