| 摘要 |
Abstract A print document processing system (100) includes a cache apparatus (130, 140) and plural data processing 5 apparatuses (120). The cache apparatus includes a cache memory (140), a state memory, and a first response providing unit. The cache memory (140) stores bitmap image data or intermediate language image data created by each of the data processing apparatuses (120). The state memory stores, for 10 each document element of print document data, a state among plural predefined states in association with a cached state of image data of the document element in the cache memory. The plural states include a CREATING state, and the CREATING state is a state where the image data of the document 15 element is not in the cache memory (140) and where the image data of the document element is currently being created by any of the data processing apparatuses (120). Upon receipt of a query on image data of a document element of the print document data from a data processing apparatus among the 20 data processing apparatuses (120), the first response providing unit provides a CREATING response to the data processing apparatus if the CREATING state is stored in the state memory in association with the cached state of the image data of the document element. The CREATING response 25 is a response indicating that the image data of the document element is currently being created by any of the data processing apparatuses (120). Each of the plural data processing apparatuses (120) includes an image data creating unit, a query unit, and a controller. The image data 5 creating unit creates bitmap image data or intermediate language image data by processing page description language data of each document element of the print document data. The query unit queries, for each document element of the print document data, whether image data of the document 10 element is in the cache apparatus (130, 140) or not before the image data creating unit creates the image data of the document element. If a response from the cache apparatus (130, 140) in response to a query issued by the query unit is the CREATING response, in accordance with a predetermined 15 condition, the controller performs control to use the image data after the image data that is currently being created has been created or cause the image data creating unit to create the image data of the document element without waiting for creation of the image data that is currently 20 being created to be completed. =0 00 uJU uJ u U) C 0 z CNJ CNI (NC Ho HL H -L CD of =.L f J 0 > J C-) (Nz |
