EPSON AcuLaser C9200N Revision D
OPERATING PRINCIPLES      Operating principle of Option mechanism 92
Confidential
TRANSPORT CONTROL
Rotation speed of the Duplex Unit Transport Motor is controlled by the signals 
output from the Duplex Control Board.
The following two types of printing methods are available.
 Operations in 2-sided printing with a single sheet of paper resident in the 
system
 Operations in 2-sided printing with more than two papers
2
4066T2C501DA
1. The first sheet of paper is taken up and fed in from the 
Main Body Drawer and the Main Body starts the first print 
cycle to produce the print image of the second page of the 
original.
Paper Exit Roller
2. Immediately before the 1-sided print leaves the Paper Exit 
Roller, the direction of rotation of the Paper Exit Roller is 
reversed and the 1-sided print is transported toward and 
into the Duplex Unit.
3. The 1-sided print moves through the Duplex Unit and is 
directly subject to the second print cycle without being 
stopped.
4. The main body carries out the second print cycle to 
produce the print image of the first page of the original on 
the other side of the 1-sided print.
5. The paper of 2-sided print is exited.
1. The first sheet of paper is taken up and fed in from the 
Main Body Drawer and the Main Body starts the first print 
cycle to produce the print image of the second page of the 
original.
Paper Exit Roller
2. Immediately before the first 1-sided print leaves the Paper 
Exit Roller, the direction of rotation of the Paper Exit 
Roller is reversed and the first 1-sided print is transported 
toward and into the Duplex Unit.
3. At the same time, the second sheet of paper is taken up and 
fed into the main body.
4. The Main Body carries out the first print cycle for the 
second sheet of paper to produce the print image of the 
fourth page of the original.
5. At the same time, the first 1-sided print is transported 
through the Duplex Unit.