Important, Turn the power switch off, Open the printer upper doors – Printronix L5520 User Manual
Page 160: Open the waste toner recovery unit, Caution

Chapter 5
General Cleaning
160
IMPORTANT
Do not use any cleaners or chemicals on the Fuser Unit Cover
Glass. Use only the scraper.
1.
Turn the power switch OFF.
2.
Open the printer upper doors.
3.
Open the waste toner recovery unit.
CAUTION
The transfer charger must be in the down position to avoid
scratching the drum. Failure to perform steps 4 and 5 damages
the drum.
4.
Check that the transfer charger is in the down position, and if
not, move it to the down position by rotating the transfer
elevator drive shaft counterclockwise. Watch the charger
movement:
a.
If the charger starts to move up, it is already in the down
position.
b.
If the charger starts to move down, continue to rotate the
drive shaft until the charger reaches the complete down
position.
Transfer
Charger
Transfer
Elevator Drive