Scanner Tests; Asic Test; Feed Test - Lexmark X850e Service Manual

SCANNER TESTS

ASIC Test

This operation performs a diagnostic test on the scanner ASIC that cycles through all of the scanner ASIC's
memory.
To perform the ASIC Test:
1.
Touch SCANNER TESTS from the Diagnostics Menu.
2.
Touch ASIC Test.
During this test, ASIC Test Running... appears on the LCD. At the completion of this test, ASIC Test
Passed or ASIC Test Failed appears on the LCD. To clear the message, press Stop

Feed Test

This test continuously executes flatbed and/or ADF scans but does not produce any printed output.
To perform the Feed Test:
1.
Touch SCANNER TESTS from the Diagnostics Menu.
2.
Touch Feed Test.
You are prompted to select a paper size for the ADF. For flatbed scans, the full length of the flatbed is traversed.
The device decides whether to run the flatbed or the ADF according to the following flowchart:
During the test, Running... Flatbed:xxxxx ADF:xxxxx appears on the LCD. The Flatbed number
increases each time the scanner performs a flatbed scan, and the ADF number increases each time the scanner
performs an ADF scan.
Press Stop
If an error occurs (such as a scanner jam), Feed Test Failed Flatbed:xxxxx ADF:xxxxx appears on
the LCD. To clear the message, press Stop
Scan all pages
from the ADF,
assuring selected
paper size.
to end this test.
Paper
No
in
ADF?
Yes
Scan the full
length of the
flatbed.
.
7500-XXX
.
3-25
Diagnostic aids