Canon 3170 Series User Manual page 381

5. Gently close the upper unit of the ADF cover until you hear it
MAKE SURE THAT THE UPPER UNIT OF THE ADF COVER IS
LOCKED IN POSITION SECURELY BEFORE PROCEEDING TO
STEP 6.
6. Lift the document feeder tray, and gently open the ADF cover
15-30
Maintenance & Frequently Asked Questions
lock.
until it stops, grasping the document feeder tray and the ADF
cover at the same time.
Chapter 15