HP (Hewlett-Packard) LJ 4000T Printer User Manual


 
EN Cleaning page 237
9
LJ 1200 series
Note
This process requires use of a transparency to remove dust and toner
from the print paper path. If transparency film is unavailable, you can
use copier-grade paper. If you must use paper, perform the procedure
two or three times to ensure proper cleaning.
1 Load a transparency in the priority input tray.
2 Make sure that the printer is in the Ready state.
3 Press and hold the Go button for 10 seconds. The transparency
feeds through the printer slowly. Discard the transparency.
Note
After you press and hold the Go button, the three printer lights blink
until the cleaning process is complete.