HP Scitex FB950 Printer series - Manual (Page 76)

Clean the rail encoder strip (bi-weekly)
Ink dust and debris can accumulate on the encoder strip and block accurate reading of the encoder
marks by the carriage encoder reader.
1. Using a lint-free cloth moistened with IPA (Isopropyl alcohol), wipe the top and bottom of the
encoder strip, cleaning the entire length of strip.
Use common rubbing alcohol, which is 70% isopropyl alcohol and 30% water.
2. After cleaning most of the encoder strip, move the carriage to clean the remainder of the encoder
strip.
70 Chapter 5 User cleaning ENWW