Samsung ML-3471ND - Scan Lock Error

Reference Information
Samsung Electronics
Service Manual
7-17
7.6.12 Scan Lock Error
No
YES
No
Yes No
Yes, Still there is unlock error message on the pannel
Yes
Check if the switch is pulled out
completedly to the unlock mark inside
platen glass
Are you sure that
swich is pulled out
completedly?
Check t to push
the cancel button
Replace Scanning Unit Assy
Still is there unlock
error message on
the pannel?
Fix the problem
Push [cancel] button
Pull out the switch with
Ice green color