The Canon P270 print engine that is used in the LaserWriter Pro 600 or LaserWriter Pro 630 supports the following paper sizes when using the multi-purpose tray:
Minimum Maximum
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Width 90mm (3.54 inches) 216mm (8.50 inches)
Height 165mm (6.49 inches) 356mm (14.02 inches)
The LaserWriter Pro 600/630 PPD files used by the LaserWriter 8 driver provides support for standard paper sizes. The PPD file may need to be modified if other sizes are required. Additional information on how to modify PPD files is available from Adobe Systems as part of their PostScript software development kit.
The information can also be accessed in electronic format using the Adobe file server which is available on the Internet at http://www.adobe.com.