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- --- PostScript Developer Tools ---
-
-
-
- 1. Error Handler (EHANDLER.PS):
- This is a downloadable PostScript file that will redefine the default error
- handling on a PostScript printer. In addition to providing the error-
- handling on a PostScript printer back to the host, this error handler will
- cause the current page to be printed (with "showpage") in its current state
- (any marks made prior to the error being triggered) and will also print the
- PostScript error, offending command, and operand stack trace on the same
- sheet of paper. This file should be downloaded once each time the machine
- is rebooted, and is very useful for error tracking. If you call for
- support, we would prefer that you have this file downloaded so that we have
- a consistent starting point for debugging.
-
- 2. Timing Tests (TIMEPAGE.PS):
-
- This is a downloadable PostScript file that will do accurate tests for
- Postscript jobs. It may be used when optimizing your PostScript driver for
- determining where processing time is spent. It uses the built-in usertime
- PostScript operator. Note that in many implementations of PostScript
- some of the actual imaging into the frame buffer is delayed until the
- execution of the showpage operator, and takes place while the paper is
- actually feeding through the marking engine. Therefore, in the timing
- results from this program, there are two numbers given: one number
- represents the amount of time spent just prior to the execution of showpage
- and the other number reflects the amount of time actually spent imaging
- during showpage. Note that this overlap in processing will actually
- allow the PostScript program to run faster, since the interperter other-
- wise spends much of its time waiting while the page is being fed through
- the marking engine.
-
-
- 3. Serial Patch (UARTPAT2.PS):
-
- This is a downloadable piece of PostScript which has only one purpose:
- to fix an obscure bug in a particular implementation of PostScript. If
- you are using a "LaserWriter classic" (version 23.0 of the PostScript
- interpreter), you should download this patch. Otherwise, you may ignore
- it. The patch fixes the bug mentioned in Appendix D of the PostScript
- Language Reference Manual (the bug is related to serial communications on
- the version 23.0 LaserWriter)
-
-
- To use these on your PostScript printer:
- At the DOS prompt (">") type the following:
-
- mode com1:9600,e,7,1,p
- copy xxxx.ps com1
-
- If your printer is on COM2 instead of COM1 you should change the "com1" to
- "com2" in the previous example.
-
-
- Leave a message on here to Neal White if you have any further questions.
-
-