| 摘要 |
<p>A printing arrangement suitable for printing in an extended surface comprises: A printhead 12 mounted on a traversable carriage 11 and means to traverse the carriage 11 over an extended surface 14 such as a playground, football pitch or baseball ground. The printing apparatus preferably includes a frame 15 which may be a virtual frame comprising a laser guide means (17, fig 5); the apparatus may use machine vision to align printed areas and may include means to adjust the distance of the printhead from the extended surface.</p> |
