204 7 Maintenance
5. Gently wipe the glass window at the back of 
the cartridge slot with a soft dry cloth.
6. Hold the drum cartridge by the handles with 
both hands. Gently insert the drum 
cartridge in the printer, aligning the 
projections marked with arrows on both 
sides with the arrow labels on the printer.
7. Close the output tray cover.
Important
• When closing the output tray cover, be careful not to 
get your fingers caught between (the left or right edge 
of) the cover and the printer.
8. Close the front cover.
Important
• When closing the front cover, be careful not to get your 
fingers caught between (the left, right, top, or bottom 
edge of) the cover and the printer.