I apologize for the stupidity of this answer, but I assure you that it is correct. It's not my fault, but somebody ought to apologize for it and I'm not holding my breath for an apology from Bill Gates...
In Store Ops Manager, go to the register list. Open the properties of the register in question. Tell it to print receipts to the default Windows printer. Click OK. Now go back into the properties window and tell it not to print receipts. The printer name will be grayed out but the name will remain. You will now be able to print from the journal.
Brilliant! I love undocumented quirks. Wait until you want to see page 2 of a multi-age receipt.
Tom