Bin Full Sensor Service Check - Lexmark X548 Series Service Manual

Step Questions / actions
Turn the printer on, and then verify the
3
following approximate values at JSP1:
Pin Value
2 +24 V dc
4 +24 V dc
5 +5V (when paper is picked)
7 Ground
8 Ground
10 +5 V dc
12 -5 V dc (when paper is picked)
15 +5 V dc
16 Ground
Are the values approximately correct?

Bin full sensor service check

Step Questions / actions
Inspect the bin full sensor located towards the
1
rear of the top cover assembly.
Is the bin full sensor dislodged or
damaged?
With the scanner assembly in the down
2
position, perform the standard bin sensor base
sensor test. See
3-20. Toggle the bin full flag attached to
page
the rear shaft of the redrive unit.
Does the flag rotate freely and interrupt the
sensor beam when in normal position?
Turn the printer off, and remove the rear
3
shield. See
"Rear shield removal" on
4-7. Turn the printer on, and then check
page
the values below at JBIN1:
Pin Value
1 > 0 V dc, +5V dc during
cycle
2 +3.3 V dc beam blocked
0 V dc unblocked
3 Ground
Are the values correct?
JSP1
"BASE SENSOR TEST" on
JBIN1
Yes
Replace the
autocompensator
mechanism. See
"Autocompensator
mechanism (ACM)—
standard tray removal" on
page 4-13.
Yes
Repair or replace the bin full
sensor. See"Bin full
sensor removal" on
page 4-16.
Go to step 3.
Problem resolved.
7525-63x
No
Replace the RIP board. See
"RIP board removal" on
page 4-19.
No
Go to step 2.
Reposition or replace the
flag. If the flag is broken,
replace the bin full flag.
See"Bin full flag removal"
on page 4-99.
Replace the RIP board. See
"RIP board removal" on
page 4-19.
Diagnostic information
2-33
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