Symbol 5851 from IEC 60417 - Title/Meaning: Printer connection; parallel interface Function/description: To identify a connector for parallel data connection, or to indicate a print function.
Additional information: 
Published in: 3C/855/FDIS
Own work using: iso.org/obp/graphics/grs/b60cc9d4-9ee4-4038-91f6-b12e1eea2ca3 200.png
Vectorization:  Mrmw