Canon LBP7660Cdn Manual page 281

ITU-T recommendation T.81 JPEG (Basic DCT only)
PackBits (Apple Macintosh PackBits)
LZW
Unsupported encoding methods
ITU-T recommendation T.82 JBIG
ITU-T recommendation T.43 JBIG
ITU-T recommendation T.44 MRC
Printing may not be performed properly depending on the data.
NOTE
If you cannot print a file using the direct print function or if the printing position is skewed
The file may be printed properly by opening it from an application and using the printer driver.