User Manual

Table Of Contents
Maintenance
251
Sensor Cleaning
Dust can accumulate on the media sensors. Do not use an air compressor to remove dust. Compressors
add moisture, fine grit, and lubricant which can contaminate your printer.
Lower Half of ZD60/ZD421 Printers
1. Clean the Movable Sensor’s window. Gently brush away dust or use a can of compressed air; if
necessary, use a dry swab to brush away dust. If adhesives or other contaminants remain, use an
alcohol moistened swab to break it up.
2. Use a dry swab to remove any residue that may be left from the first cleaning.
3. Repeat steps 1 and 2 as required until all residue and streaks are removed from the sensor.
.
Movable Sensor
(Black Mark and Lower
Web/Gap)