Canon MultiPASS C530 Service Manual page 211

MultiPASS C530/C560 Chapter 3: Maintenance & Service
6-3 : SENSOR
Pressing the 1 key.
D S of
DS: Document sensor
on/off : decument/no document
Figure 3-25 Sensor Tests
3-54
Alternately
displayed
D E S of
DES: Document edge sensor