Canon IMAGEFORMULA CR-190I - Manual (Page 45)

45
Cleaning the Scanning Glass and Rollers
If stripes appear on scanned images or if dirt appears on scanned
documents, clean the scanning glass and rollers. Clean the scanning
glass and rollers regularly.
A
Remove the Top Cover.
B
Pull the Open Button, and pull the Front Maintenance Cover
open to the right and left.
IMPORTANT
If you notice paper dust in the feed path when you open the Maintenance
Cover, clean it out with a cotton swab.
C
Press the Open Button, and push the Back Maintenance
Cover open to the back.
D
Remove the Roller Cover.