Omoide
English name: A Memory
Genres: Sci-Fi, Slice of Life
Type: Movie, Episodes: 1
Aired: Jan 1, 2001
Source: Original
Rating: G - All Ages
Synopsis:
A short clay/crayon animation by Tomayasu Murata.

While the robot is cleaning, it finds a picture. It's his precious memories.

(Source: Official Youtube Channel)