--- canonmp560.ppd	2010-10-09 11:52:34.706399908 +0200
+++ canonmp560.ppd	2010-10-09 11:57:01.831203052 +0200
@@ -68,6 +68,12 @@
 *ColorModel rgb/RGB: "<</cupsColorOrder 0/cupsColorSpace 1/cupsCompression 0/cupsBitsPerColor 8>>setpagedevice"
 *CloseUI: *ColorModel
 
+*OpenUI *CNGrayscale/Grayscale: Boolean
+*DefaultCNGrayscale: False
+*CNGrayscale True/Yes: True
+*CNGrayscale False/No: False
+*CloseUI: *CNGrayscale
+
 *OpenUI *PageSize/Page Size: PickOne
 *DefaultPageSize: A4
 *PageSize Letter/Letter 8.5"x11" 215.9x279.4mm: "<</CNPageSizeName(Letter)/PageSize[612 792]/ImagingBBox null>>setpagedevice"