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Maintenance
Cleaning
1/13/2016 ZD420 User’s Guide 212485-001 Rev. A
4. 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.
5. Use a dry swab to remove any residue that may be left from the first cleaning.
6. Repeat steps 4 and 5 as required until all residue and streaks are removed from the sensor.
.
7. Ribbon Cartridge Sensor Pins - Only clean when the cartridges are failing detection.
Clean the Ribbon Cartridge interface pins with a gentle wiping from right to left. Up and down
motions may damage the pins.
Movable Sensor
(Black Mark and
Lower Web/Gap)
Ribbon Cartridge
Sensor
Contact Pins
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