Epson Stylus Pro 7800 User Manual page 314

4. Make sure that the casters at the base unit are locked, and that
the stabilizer knobs of the base unit are extended to the floor.
Note:
Place the casters sideways and lock them so they will not move.
5. Remove the left and right side wing nuts. Keep them in a safe
place.
6. For Stylus Pro 9800/9400 users:
Have four or more people lift the printer unit off of the base
unit, using the eight hand grips shown below. The printer unit
weighs approximately 90 kg (198 lb) and should be lifted
carefully.
For Stylus Pro 7800/7400 users:
Have two or more people lift the printer unit off of the base
unit, using the four hand grips shown below. The printer unit
weighs approximately 49 kg (107.8 lb) and should be lifted
carefully.
314
Maintenance and Transportation