All-in-One Printer Fax prints the invoices.
All-in-One printers often create multiple printers, including a Fax printer. GlasPacLX may have been configured to use this Fax printer
Suggestion: You may want to rename your Fax printer to start with the title FAX.
Change the GlasPacXL printer settings
Click on Company > Settings
Under Personal Settings, open Auto Glass Printers and Flat Glass Printers
Change which printer is being used for each order type (you don't need to click Save between each change)
Change which printer the Report Printer is using.