Our software does not have the color handling capabilities of Photoshop but here are some other things to try:

1. You may be able to apply the Color Profile of your printer to your image by using the Image->Mode->Apply Profile command in Photoshop.  Then when saving as JPEG, you can choose to embed the profile.  This technique may allow you to proof your work on your display inside of Photoshop, and hopefully the embedded profile will be honored when HappyNewYear sends output to your printer.   By the way, HappyNewYear should also be able to use native Photoshop file format (and be sure to embed your printer color profile when saving).

2. You may be able to apply additional ColorSync Quartz Filters by using the ColorSync options in the Print dialog.  After selecting Print from HappyNewYear, choose ColorSync from the popup menu under the Printer and Presets popup menus.  Once ColorSync is selected, you can apply a pre-canned Quartz Filter (which can be created using ColorSync Utility), or choose Add Filters to have your calendar printed to PDF and then subsequently opened in ColorSync Utility where you may create and apply additional filters before printing.  This technique may allow you to apply your printer profile as well as choose a Rendering Intent.  See screen shots below.