Ink-jet printer carriage and paper motion overlap method and apparatus

Apparatus for increasing printer throughput comprising:

• a first processor for controlling movement of printer paper, said first processor determining whether while not printing there is a pending paper movement and if so then setting a flag and upon clearing of said flag initiating such said pending paper movement, and
• a second processor for controlling movement of a printer carriage, said second processor determining whether there is a pending carriage movement and if not then clearing said flag, said second processor further determining after a carriage movement whether the carriage is at full speed and whether there is no printing and if so then clearing said flag,
• said first and said second processors cooperating with one another to initiate said pending paper movement such that said pending paper movement is performed concurrently with a current carriage movement that is of substantially constant speed.