Kyocera FS FS-1020D Operation Manual page 23

Never stand the process unit on end.
ote
Figure 2-10
3
Use the supplied wiper cloth to clean dust and dirt away from the
registration roller (metal).
Transfer Roller
Figure 2-11
While cleaning, be careful to avoid touching the transfer roller (the black
roller).
ote
NO
2-7
Cleaning the Printer
Registration Roller