A monitor profile will be used in most cases. If you're not sure what type of monitor you're using, look on the back of the monitor to determine the model and manufacturer. Locate this profile in the RGB Default pop-up menu or use the Adobe Gamma control panel to create one. This will always describe the output device. Select magicolor 6100 from this list.
Lab is a device-independent color space where the color transformation occurs.
In a sense, Lab is a reference space used independently of the device-specific profiles. The profile, in conjunction with the rendering intent, is what's used to ensure accurate color output. The profile for the input device should be loaded into the ColorSync Profiles Folder, just like the profiles for the magicolor 6100 printers. A monitor can be selected as an input device, since some graphic files are not scanned or captured with a digital camera. An example of this is a file created in Adobe Illustrator using a specific monitor profile to view the artwork as it's being created.