603
DP-C405/C305/C265
FEB 2008Ver. 1.1
2. Sheet Bypass
< NP Sensor Operation >
a. The NP Actuator attached to the Paper Feed Unit determines if there is paper in the paper tray.
b. The paper in the paper tray lowers the NP Actuator, and the NP Sensor actuates.
< Sheet Bypass Operation >
a. When the printing operation begins, the PRINT (Print Request Signal) turns On and the Main Motor
starts driving the Gears.
b. The Solenoid turns ON, and the Pick UP Roller moves downward.
c. The Clutch is energized immediately and turns ON. This activates the Paper Feed Roller and the
Pick Up Roller. The paper is transported to the Separating Roller by the Pick Up Roller. The paper is
separated into individual sheets by the Separating Roller.
d. The paper is transported to the Registration Roller, activating the Registration Sensor.
e. After a specified period of time, the Clutch is turned ON, and the Registration Roller and the
Registration Pinch Roller start rotating. After the paper is transported to the Intermediate Roller
(Main), the Clutch is turned OFF. The paper is transported to the STR area by the Intermediate
Roller.
f. After the trailing edge of the paper passes the Registration Sensor, and after a specified period of
time, the Clutch is turned OFF. The Registration Roller and the Registration Pinch Roller stop
rotating.
Feed Roller
Pick Up Roller
NP Sensor
NP Actuator
Separating Roller
Intermediate Roller