How To Write Straight In Blank Paper . Place the lined paper underneath the printing. Laser cap is a small concept gadget that projects a pattern of lines onto blank paper to facilitate straight handwriting. 4 Best Images of College Blank Writing Worksheet Printable Printable from www.printablee.com This is definitely a supplement. The muscle memory / skill translates over to handwriting. Normally this is not a problem as one can simply put a lined sheet under the blank paper and write.