Open the front covers.
Pull down the lever B5.
Pull out the right drawer until it stops.
Remove the two black screws on the cover plate, and then remove the cover plate.
Remove a black screw on the dust catcher, and then remove the dust catcher.
Use a clean dry cloth to remove any dust remaining in the dust catcher.
Turn the knob while using a dry cloth on the transfer timing idle roller.
Reattach the dust catcher with the black screw.
Reattach the cover plate with the two black screws.
On the right side of the drawer, pull down the lever B1 to release the plates.
Hold the dry cloth against the main relay drive rollers (1).
Clean the sensors.
While turning the knob B3, use a dry cloth on the registration entrance idle rollers.
On the inside of the right drawer, hold a dry cloth against the registration entrance drive rollers while turning the knob B3.
Clean the sensors.
Open the cover B7 to clean the rollers.
Hold a dry cloth between the plates and the rollers to clean the drive rollers as they rotate the knob B3.
Clean the sensors.
Turn the knob B4 on the front while using a dry cloth on the registration timing idle rollers.
Pull up the lever to close the plates.
Use the blower brush on the registration timing sensor.
Use the dry cloth to clean the rollers.
Turn the knob B6 while using a dry cloth on the transfer timing idle roller.
Use the blower brush on the transfer timing sensor.
Lower the duplex transport path plate (Z4) on the front of the right drawer.
Rotate the knob Z2.
Clean the rollers (as you rotate the knob) and sensors.
Close the duplex transport path plate (Z4).
Push the right drawer into the main unit until it stops, and then pull up the lever B5.
Close the front covers.