HP Color LaserJet 9500 Service Manual page 212

Table 27. Control panel and event log messages—multifunction finisher (continued)
Event log, if connected to
Control panel
message LJ9000
Stapler area None
safety protection
activated
Recommended action:
1 Make sure that the number of sheets to staple is no more than 50 sheets of letter/A4 or 25 sheets of ledger/
A3 of 75-g/m
2 See "Supported media" on page 44 if you are using heavy media. Media that is heavier than a 30-sheet job
of 199 g/m
3 Verify that the connectors at the controller PCA are correctly seated, and check the harness connection at
each end.
4 If the harness is connected, but the message persists, then replace the controller PCA.
Stapler low of None
staples
Recommended action:
Replace the staple cartridge.
Stapler out of None
staples
Recommended action:
1 Replace the staple cartridge.
NOTE: Customers might still see staples in the path of the cartridge. However, the "out of staples" message is
triggered when the staples chamber is empty. Print jobs will not be stapled.
2 Verify that the connectors at the controller PCA are correctly seated, and check the harness connection at
each end.
3 If the harness is connected, but the message persists, then replace the controller PCA.
4 If, after you replace the controller PCA, the message persists, then replace the stapler unit.
Too many pages None
in job to staple
Recommended action:
1 Make sure that the job to be stapled is within specifications. See chapter 3.
2 Reduce the number of pages to staple, and then perform a test.
3 Remove the back cover and verify the functionality of the stapler full-stack sensor PI25 (see page 82) 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 If the harness is connected, but the message persists, then replace the controller PCA.
Too many pages None
to make booklet
Recommended action:
1 Make sure that the job to be saddle-stitched is within specifications. See chapter 3.
2 Reduce the number of pages to saddle-stitch and fold, and then perform a test.
3 If the job is within specifications, but the message persists, then replace the folding mechanism.
210 Troubleshooting
9500, 9500mfp, 9050,
9000mfp 9050/9040mfp
None None
2
(20-lb) media.
2
(53 lb) might activate the safety sensor to protect the stapler unit.
None None
None None
None None
None None
User LED Service LED
Red blinking Green blinking
Red blinking Yellow blinking
Red blinking
Red blinking
Description
The number of sheets
in the print job
exceeds the number
of sheets that can be
stapled.
The staple cartridge
contains only 20 to 50
staples.
The staple cartridge is
out of staples.
The number of sheets
in the document
exceeds the
maximum number of
sheets that the device
can staple.
The number of sheets
in the document
exceeds the
maximum number of
sheets that the device
can fold.
ENWW