I did not find any option to print a new page for each document in the General Journals like the option in the Bank Detail Trial Balance, we have the option to print separate page for each bank, this is available in many areas also in Vendors, Customers…
You can create a new sorting key where Document No is part of the key that you are using on the report, and when-ever Document No. changes you can generate tell the system to do a new page. This can be done using code but also using checkmarks in RDLC.
But take a look at one of the other reports that you are mentioning and see how they are made.