Konica Minolta C652 User Manual page 201

9.2 Troubleshooting table
Description of problem
Scanning does not start
Connecting the authentication
unit to the computer starts the
hardware uninstall wizard
When the "Failed to register"
message appears on this ma-
chine where registration fails
When a message appears on
the computer where registration
fails
When the "Failed to authenti-
cate." message appears on this
machine where login fails
Scanning does not start
bizhub C652/C552
Check points
Have you placed your finger cor-
rectly on the authentication unit?
Did you restart this machine after
connecting the authentication
unit to this machine?
Is the USB port to which the au-
thentication unit is connected the
same as the one used when in-
stalling the driver?
The scanning time of the authen-
tication unit is limited to 10 sec-
onds. If scanning does not finish
within the limited time, the corre-
sponding message appears.
When IC card authentication +
password authentication is ena-
bled
Did you enter the correct pass-
word?
Did you restart this machine after
connecting the authentication
unit to this machine?
Remedy
Refer to "Quick Guide
[Copy/Print/Fax/Scan/Box Oper-
ations]" to confirm how to per-
form authentication and how to
place your finger when scanning.
During scanning, place the
scanned part on the scanning
section correctly, and do not
move it until results have been
obtained.
If the scanned part is dusty or
rough and dry when performing
authentication, a correct image
will not be able to be obtained,
and scanning may not finish.
Clean your finger, and then scan
it again, or improve the rough
and dry condition of your finger.
If the scanned part is too thick or
thin (when the finger width is out-
side the range from 3/8 to 1
inch), a correct image cannot be
obtained, and scanning may not
finish. Try "stretching your fin-
ger", "placing your finger deep-
ly", or "placing your finger
shallowly" on the scanning sec-
tion.
Turn off the main power of this
machine, disconnect the USB
cable from this machine or au-
thentication unit, and then con-
nect it again. Wait at least 10
seconds, and then turn on the
main power of this machine.
If you connect the authentication
unit to a different USB port from
the one used when installing the
driver, the hardware uninstall
wizard may start. Use the same
USB port as the one used when
installing the driver.
To finish scanning within the lim-
ited time, refer to "Quick Guide
[Copy/Print/Fax/Scan/Box Oper-
ations]" to confirm how to place
the IC card.
Check the password, and then
enter the correct one if not.
Turn off the main power of this
machine, disconnect the USB
cable from this machine or au-
thentication unit, and then con-
nect it again. Wait at least 10
seconds, and then turn on the
main power of this machine.
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