Pivot tables are not supported by NPrinting template editors. There is a way to do this in HTML using MS Office and the process is outlined below:
1. Clone and convert the QV pivot table to a straight table. This can be a hidden object if you don't want it to be visible in the QVW.
2. Create a pivot table in MS Excel using the newly created QV straight table. That process is outlined here: http://community.vizubi.com/knowledgebase/articles/261211-how-to-create-a-pivot-table-from-excel-table-colum
3. When creating the report task, choose to render the Excel report in HTML format (see Choose Report Output Type in this document: http://community.vizubi.com/knowledgebase/articles/260323-how-to-create-tasks)