Related Clues:

• Principle - church dignitary - regulation
• Cathedral priest
• Rule -- principle
• Body of generally established principles for a given context
• Office equipment giant
• Big name in cameras and copiers
• Lexmark rival
• PowerShot maker
• Johann Pachelbel's '-- in D'
• Former Belgian camera brand
• Big name in photography, once
• Digital imaging brand
• Clergyman back working in prison
• US prison rings broadcast back for man of the cloth
• Great works, collectively