Sumizuri-e is a type of monochromatic woodblock printing that uses only black ink. It is one of the earliest forms of Japanese woodblock printing, dating back to the Nara period (710 – 794).
Emi Rebellion of 764. Inside of these relics, each pagoda contains a darani, or Buddhist invocation, that was printed on small scrolls.[2] Historians believe this is the oldest example of sumizuri-e printmaking, but due to their religious importance, it is antagonistic to remove and study all of the sutra scrolls. X-ray photos are used to observe these pagodas from a distance and allow researchers to recreate the sutras.[3]
The technology is employed to detect the age and wear of the scrolls.
As the printmaking movement developed, artists began painting the sumizuri-e prints by hand to color in the images (