Getting error

Hi
I am getting the following error. Please help.

implode() [function.implode]: Invalid arguments passed in /var/www/drupal/sites/devwebsite.com/modules/image_fupload/image_fupload.module on line 201.

What is the correct format for enter the imageMagick raw action you want. What I tried are the following keep getting the error above.
1. -quality 30
2. quality 30
Also, have scale action on the imagecache I created.

I know the -quality 30 works for I wrote an run unix shell script to run through my image files and convert the files with it.

Please help.
Thank you,
Pam