Develop QC 2235 Plus Service Manual page 138

Mechanical operations
A. Document take-up operation flow
Registration Clutch: ON
↓
Take-Up Motor: Forward Rotation
↓
Pick-Up Rollers go down and rotated via timing belt & gears
↓
At the same time, Document Stoppers go up
↓
An original is taken-up and transported.
↓
A loop is formed to correct the skew feeding after Registration Sensor is activated.
↓
Take-Up Motor: OFF
↓
Registration Clutch: OFF (release of Registration Roller)
Take-Up Motor: Backward Rotation
↓
The original is transported.
↓
Pick-Up Sensor: ON
↓
Start of the original size detection in the feeding direction
↓
Take-Up Motor: OFF
B. Document transport operation flow
Transport Motor: Forward Rotation
↓
Take-Up Motor: Backward Rotation
↓
The original is transported onto the Original Glass.
↓
The original size is determined when Registration Sensor: OFF
↓
Take-Up Motor: OFF when Pick-Up Sensor: OFF
↓
Transport Motor: OFF when the original is reached to its reference position
↓
Registration Clutch: ON
QC 2235plus Theory of Operation Ver.1.0 Mar. 2004
2-6