Canon ImagePROGRAF iPF650 Series Service Manual page 176

Chapter 4
Precaution about Reinstallation of Linear Encoder Sensor/Linear Scale
- When removing or installing the linear scale, move the carriage unit to the HP side on top of the platen to prevent the linear scale from touching the linear encoder
sensor.
- Reinstall the linear scale in such a manner that the "R" mark on the linear scale is on the right side of the printer and the "L" mark is on the left side of the printer
when viewed from the front of the printer.
L
R
F-4-98
4-42