Kyocera ECOSYS P4140dn Operation Manual page 215

Troubleshooting > Regular Maintenance
3
4
Vents
Use a lint free cloth to clean dust and dirt away from the vents.
Use a lint free cloth to clean dust and dirt away from the
registration roller (metal).
IMPORTANT
Be careful not to touch the black transfer roller and brown transfer belt during
cleaning as this may adversely affect print quality.
10-3
Transfer roller
(Black)