1. From the Scanner Diagnostics menu, select 7.2 Scanner Media Drive and then OK.
2. The following screen is displayed:
3. With the lid closed, feed A4/letter paper into the scanner:
a. Motor operation judged by PWM supply and reads encoder counts:
▲
Fail: motor or encoder or MPCA (motor power is in MPCA) or Scanner Bundle Board (SBB)
(encoder is in SBB).
b. OPT wheel is judged by: Motor encoder OK and OPT wheel encoder not OK, then it is sure there is
paper because the load optical sensor is active:
▲
Fail: OPT wheel encoder and index or SBB (Index sensor is independent of OPT encoder).
c. BOF: detect state change:
i. Fail: BOF or SBB. monitoring the counts between the Top of Form (TOF) trigger and BOF
trigger.
ii. If there is a media jam, this would trigger a fail and is not true.
iii. Message should be: "the test has failed for the BOF, check the cause is not a media jam. If you
want to verify, click OK to repeat".
214 Chapter 3 Support Menus, Diagnostic Plots & Calibrations ENWW
To Next Page
Loading...
