wikip has a list of printer code languages… found from gutenprint…

Links make it easy.

For a Mac viewpoint see this from Apple. The sidebar has more about the topic.

Many a PDF for download. This one provides this level of information.

To achieve an accurate and efficient RGB workflow, each color device in the workflow must be calibrated. This is a process by which a device is returned to known color conditions. Calibration is followed by characterization, which is the process of creating a profile that describes the color characteristics of that particular device. In a color management system (CMS) or workflow, a calibrated device is characterized by an ICC profile. The process of calibrating and characterizing may be slightly different for each type of device

My path to perfection moves onward. Adding more feature to my command set, I discovered that an API for scanners exists. This may help close the loop back into the analysis and management tools for my new print monster. If you are following along, these breadcrumbs are essential. If you don’t know what the hell I am doing, then consider this techno trash.

From this site, this snippet:

SANE stands for “Scanner Access Now Easy” and is an application programming interface (API) that provides standardized access to any raster image scanner hardware (flatbed scanner, hand-held scanner, video- and still-cameras, frame-grabbers, etc.). The SANE API is public domain and its discussion and development is open to everybody.

Outline of steps for Mac (user view)

1. Install libusb from here
2. Install the SANE Backend from here
3. Install the SANE interface from here
4. Open ImageCapture (it works in Photoshop too)
5. Click Devices =>; Browse Devices
6. Click SANE =>; Use TWAIN UI