Spool to Lexmark m412 crashes on large images

[Josh Berkus]

> First, two questions:
>
>   * Which 'driver' are you using?
>        (this is determined by the PPD file which you find in
>         /etc/cups/ppd/<printername>.ppd -- grep for all lines
>         containing the "cupsFilter" keyword)

It's called "Lexmark.ppd" but it appears to just be tweaks on a generic postscript printer config:

*PCFileName:    "POSTSCRI.PPD"

The notes in the file call it this:

Lexmark-Optra_M412-Postscript.ppd

Note that the m412 is supposed to support postscript natively.

>   * How is your Lexmark connected to the CUPS print server?
>        ("lpstat -v" will output the 'backend' and its 'device URI',
>        as it's called in CUPS-land.)

device for Lexmark: usb://Lexmark/Optra%20M412

Thanks for helping with troubleshooting!