The photo with white paper is the Thermal Impulse Printer System, a different printer from the Interim Teleprinter. As far as I can tell, the teleprinter always

The photo with white paper is the Thermal Impulse Printer System, a different printer from the Interim Teleprinter. As far as I can tell, the teleprinter always used yellow paper. (This helps to figure out which printer is being used on the Shuttle in a photo, since the captions are usually wrong.)