HP Color LaserJet 9500 Service Manual page 209

Table 27. Control panel and event log messages—multifunction finisher (continued)
Event log, if connected to
Control panel
message LJ9000
66.12.36 66.12.36
Output device
failure
Recommended action:
1 Make sure that the stacker bin presses the paper-level sensor flag and activates the paper-surface sensor
PI9 (see page 79). If it does not, then check the stacker bin to make sure that it is not bent in the upward
position. If it is bent upward, press the bin down to put the stacker bin back in its correct position.
2 Test the stacker bin up and down motor M6 by using the motor test (see "Testing a motor, solenoid, or
clutch" on page 238).
3 Verify the functionality of the paper-surface sensor PI9 by using the sensor test (see "Testing sensors and
switches" on page 238).
4 Verify that the connectors at the controller PCA are correctly seated, and check the harness connection at
each end.
5 Turn the printer or MFP off and then on again to see if the jam persists.
6 If the harness is connected, but the message persists, then replace the controller PCA.
66.12.41 66.12.41
Output device
failure
Recommended action:
1 Test the staple/fold motor M7 (see page 76) by using the motor test (see "Testing a motor, solenoid, or
clutch" on page 238).
2 Verify the functionality of the staple-fold motor clock sensor PI14(see page 79) by using the sensor test (see
"Testing sensors and switches" on page 238).
3 Make sure that the stapler unit is properly installed. The coupling between the stapler unit and the staple/fold
motor M7 must be fully engaged.
4 Make sure that the booklet mechanism is installed correctly and that there is nothing inside of the assembly
that would prevent successful completion of a power-on sequence.
5 Look through the jam access cover while manually moving the folding knob to make sure that the folding
plate is not skewed.
6 Verify that the connectors at the controller PCA are correctly seated, and check the harness connection at
each end.
7 Turn the printer or MFP off and then on again to see if the jam persist.
8 If the harness is connected, but the message persists, then replace the stapler unit.
9 If, after you replace the stapler unit, the message persists, then replace the folding mechanism.
10 If, after you replace the folding mechanism, the message persists, then replace the controller PCA.
66.12.51 66.12.51
Output device
failure
Recommended action:
1 Test the booklet bin slide motor M10 (see page 76) by using the motor test (see "Testing a motor, solenoid,
or clutch" on page 238).
2 Verify the functionality of the booklet bin home-position sensor PI28(see page 82) by using the sensor test
(see "Testing sensors and switches" on page 238).
3 At power-on, make sure that the booklet bin stopper moves completely in and out.
4 Verify that the connectors at the controller PCA are correctly seated, and check the harness connection at
each end.
5 Turn the printer or MFP off and then on again to see if the jam persist.
6 If the harness is connected, but the message persists, then replace the booklet bin.
7 If, after you replace the booklet bin, the message persists, then replace the controller PCA.
ENWW
9500, 9500mfp, 9050,
9000mfp 9050/9040mfp
66.12.36 66.12.36
66.12.41 66.12.41
66.12.51 66.12.51
User LED Service LED
Red solid Red (3 blinks)
Green (6 blinks)
Red solid Red (4 blinks)
Green (1 blink)
Red solid Red (5 blinks)
Green (1 blink)
Chapter 7 Troubleshooting 207
Description
A stacker bin up-and-
down motor (M6)
failure has occurred
A staple/folding motor
(M7) failure has
occurred.
A booklet bin slide
motor (M10) failure
has occurred.