A printing apparatus includes a data receiver that receives command data from a host device and a memory that stores the command data received by the data receiver. A printer controller reads out the command data stored in the memory in a first-in-first-out order and controls the printing apparatus in...http://www.google.com.au/patents/US6975423?utm_source=gb-gplus-sharePatent US6975423 - Printing apparatus and a control method therefor