HP Color LaserJet 9500 Service Manual page 224

Table 29. Control panel and event log messages—3,000-sheet stacker (continued)
Event log, if connected to
Control panel
message 9000
Optional bin 2 full None
Recommended action:
1 Remove all media from the stacker bin.
2 If the condition persists when the bin is empty, then verify that there is nothing blocking the optical sensors.
3 Verify the functionality of the optical sensors by using the sensor test (see "Stacker bin-full sensor test" on
page 240) and replace faulty optical sensors.
4 Verify that the optical sensors are not receiving any direct light, which can cause the stacker bin to move all
the way down when empty.
5 If the sensors operate correctly and do not receive any direct light, then replace the controller PCA.
Output paper None
path open
Recommended action:
1 Make sure that the attachment bracket and magnets are installed correctly.
2 Make sure that no cables are in between the output device and the printer or MFP.
3 Verify the functionality of the interlock switch and replace the switch if appears to be broken.
4 Verify the cable connections of the interlock switch.
5 If the harness is connected, but the message persists, then replace the interlock switch.
6 If, after you replace the interlock switch, the message persists, then replace the controller PCA.
222 Troubleshooting
9500, 9500mfp, 9050,
9000mfp 9050/9040mfp
None None
None None
User LED Service LED
Amber Green solid
blinking
Red blinking Green blinking
Description
The stacker bin is full. More
than 3,000 sheets of 75 g/m
letter-size or A4-size paper
has been collected (or fewer
than 3,000 sheets of heavier
or larger media.
The paper path between the
printer or MFP and the output
device is open.
ENWW
2