Paxar TC6037EM - Manual (Page 36)

Care and Maintenance 5-6
To clean the black mark sensor:
1. Turn the printer off and open the supply cover.
2. Remove the supplies. See “Removing Supplies” in Chapter 3.
3. Clean the black mark sensor with a dry cotton swab.
4. Reload the supplies and close the supply cover.
Scanner Window
Clean the scanner window whenever it appears to be dirty or smeared.
To clean it:
1. Moisten a soft cloth with water.
2. Wipe the window until it is completely clean.
Black Mark
Sensor