Media Sensor Cleaning - Printronix t8000 Administrator's Manual

•
Cleaning Agent - Use an isopropyl alcohol wipe or small amount of isopropyl alcohol on a clean cloth
to clean the platen roller.
•
Schedule - Clean the platen roller each time you clean the printhead.
3. Clean the platen roller by first removing any label parts from its surface by hand. Then use an isopropyl
alcohol wipe or clean cloth moistened with isopropyl alcohol to remove any remaining paper dust,
debris, or label adhesive. The platen roller can be rotated forward by hand to access and clean its
entire surface area.
NOTE:
Even though power is removed from the platen motor, some drag will be felt as you rotate the
platen.
4. Check the platen roller for razor cuts, nicks, and gouges that may cause voids in the printed image.
This type of damage usually requires platen roller replacement.

Media Sensor Cleaning

The upper and lower media sensors should be cleaned to ensure reliable Top of Form and Paper Out
sensing.
CAUTION
•
Cleaning Agent - Use a brush with soft non-metallic bristles or a vacuum cleaner, described above, to
remove paper dust.
NOTE:
An Isopropyl Alcohol Wipe or Printhead Cleaning Pen can be used to remove label adhesive
from the upper sensor.
•
Schedule - Clean the media sensors each time you clean the printhead.
5. Brush away or vacuum any dust or debris from the upper and lower sensor.
Printhead
Heating
Elements
A
Peel/Tear Door
Lower Media
Sensor
(visible with
Red LED)
Printhead Cover/
Upper Media Sensor
Do not use isopropyl alcohol, solvents, or abrasive agents to clean the lower
media sensor as they can damage the sensors lens cover.
Platen Roller
Pivoting
Deck
Deck Lock
Lever
49