A stretched image will begin to become pixelated and out of focus. A dialog box will appear asking you to insert a floppy disk to save the image. Label the folder with your name or lab group and save all your files to this folder. Save your work frequently , don't wait to save until all your work is done. It may take several minutes for your document to print.
Images make for large file sizes which take a significant amount of time to process and print.
Other people may also be trying to print which may slow the process slightly. Do not select the print command again if your printout doesn't come out . Double click on the desktop printer icon to check on the process of your print job. Sending additional copies to print will slow the printing process for the entire lab.