To avoid the Invalid Printer message and have your report load quicker, follow the steps below.
  1. Open the Crystal Report.
  2. Click OK when you get the Invalid Printer Message "This report uses an invalid printer. 
  3. The default printer will be used instead."
  4. Select Page Setup from the File menu.
  5. Click on No Printer (optimize for screen display).
  6. Click OK.
  7. Save the report.
The next time the report is open, you will not get the Invalid Printer message and the report will load faster than before.