Epson Aculaser C1100 Series Instruction Manual page 260

Feed Offset2
Adjust the vertical position in which to star printing. The position
moves lower on the sheet as the value increases. This setting is
used when printing on the backside of paper for duplex printing.
Scan Offset2
Adjust the horizontal position in which to start printing. The
position moves to the right of the sheet as the value increases. This
setting is used when printing on the backside of paper for duplex
printing.
Calibration
Executes the process control after finishing the print job.
260
Functions of the Control Panel