I too am experiencing the exact same problems with a vintage (1986) Apple
LaserWriter and Window95 on a Pentium 75.  It used to print fine if a bit
slow but now it will only print small text files, forget any pdf files or
other large graphics based files.  If someone knows how to fix this, they
would be most appreciated.

Thanks,
Mark

Ron Bain wrote:

>      I have both windows 95 and windows 3.1 running on my computer. I
> have a 486dx, 75mHdz, with 32 MB of ram. My printer is an apple
> laserwriter (the original). It prints perfectly in windows 31. but in
> windows 95 it will print a page or a partial page and then gives a
> message that reads as follows:
>     ERROR: ioerror OFFENDING COMMAND: [what follows here varies]:
>         example:
>             OFFENDING COMMAND:  0
>
>             STACK:
>
>             0
>             0.076
>
>     example:
>         OFFENDING COMMAND:  ashow
>
>         STACK:
>
>         [end of examples]
>
>     After installing the laserwriter the test page prints successfully
> showing the printer model to be the Apple LaserWriter and the driver
> name PSCRIPT.DRV. The driver names in the device mananger are :
> serialui.dll and serial.vxd. The MSinfo32 shows default printer to be
> the Apple LaserWriter with Unidrv.dll loaded but the Gendrv.dll not
> installed.
>     I print to com2. I have spent hours with Microsoft technicians, but
> they were unable to solve the problem. Any help are suggestions would be
> greatly appreciated. My guess is that I do not  have the correct driver
> installed. The Apple Technical information library Article:
> TEChinfo-0018581 indicates the Apple Laserwriter is supported by Windows
> 95 and comes with the necessary drivers.
>
> Thanks Ron
>
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