Visioneer NETSCAN 4000 - Manual (Page 136)

R EPLACING THE R OLLER A SSEMBLY
129
R
EPLACING THE
R
OLLER
A
SSEMBLY
The ADF Roller may wear out and is designed to be a user-replaceable part.
Problems with documents feeding through the ADF is an indication that
the roller may be wearing out. You should first clean the ADF following the
instructions in the previous section “Cleaning the Automatic Document
Feeder” on page 123. Excessive dust on the roller can make it appear worn
and smooth to touch. You cannot determine if it is time to replace a roller if
the roller hasn’t been cleaned first. The roller should last for approximately
200,000 pages scanned.
To remove the roller assembly:
1. Lift up on the ADF cover release, and carefully open the ADF door.
2. Lift up the green lock flange to unlock the roller from the ADF door.
Green Clamp ADF Feed Roller