| 摘要 |
A plurality of print heads 60 and drive controllers 330 are installable on a carriage 1 . A plurality of data processors 320 for transferring data to the drive controllers 330 are installable on the chassis 300 of the printing device. Any circuit sets, each comprising a predetermined number of print heads 60 , one drive controller 330 , and one data processor 320 , are individually installed and uninstalled.
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