HP LaserJet 9050N User Manual

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8
To clear a booklet jam, turn the bottom green knob clockwise to remove the booklet.
9 Close the stapler-unit door.
10 Reattach the finisher.
 
						

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To clear a staple jam from the optional stacker/stapler 
1Slide the stacker/stapler away from the printer.
2 Open the stapler-unit door.
3 On the staple cartridge, lift up on the green tab and pull the cartridge out.
 
						

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4
Pull the cartridge lever up.
5 Remove the jammed staple.
6 Push the cartridge lever down.
7 Insert the staple cartridge so that it snaps into place.
8 Close the stapler-unit door.
 
						

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9
Reattach the stacker/stapler to the printer.
Note The stapler needs to reload after clearing a staple jam, so the first few documents (no more than 
five) might not be stapled. If a print job is sent and the stapler is jammed or is out of staples, the 
job will still print as long as the path  to the output bin is not blocked.
To clear a staple jam from the multifunction finisher
1Open the stapler-unit door.
2 Slide the stapler unit toward you.
 
						

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3
Turn the large green knob until the blue dot appears in the window of the stapler unit.
4 Turn the small green knob at the top of the stapler unit clockwise until the staple cartridge 
moves to the left of the stapler unit.
CAUTION The blue dot must appear in the window of the stapler unit before you remove the staple cartridge. 
If you try to remove the staple cartridge before the blue dot appears in the window, you could 
damage the finisher.
5 Remove the staple cartridge.
 
						

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6
Pull up on the lever labeled with a green dot.
7 Remove the damaged staple.
8 Press down on the lever that is labeled with a green dot.
9 Reinstall the staple cartridge.
10 Slide the stapler unit into the finisher.
 
						

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11
Close the stapler-unit door.
In rare instances, a staple jam might occur in the upper half of the stapler head.
1 Follow steps 1 through 4 for clearing a staple jam from the multifunction finisher (see  To  
clear a staple jam from the multifunction finisher ).
2 Locate the damaged staple at the back of the stapler unit, and then remove the staple.
3 Follow steps 10 through 11 for clearing a staple jam from the multifunction finisher (see  To  
clear a staple jam from the multifunction finisher ).
 
						

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To clear jams in the 8-bin mailbox
NoteCheck that the paper in use is not thicker or heavier than what the 8-bin mailbox supports. See 
Paper specifications.
1 Move the 8-bin mailbox away from the printer. To do this, stand on the left side of the printer 
and pull the 8-bin mailbox straight toward you.
2 Carefully remove the upper (face-up) bin.
3 Pull down the handle on the output paper module and remove any jammed media from this 
area.
4 Push the 8-bin mailbox back into place, and then reattach the upper bin.
 
						

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Solving repeated paper jams
Note If the jams continue, contact your HP-authorized service provider. (See the HP support flyer or 
go to www.hp.com/support/lj9050_lj9040.)
Situation Solution
General 
repeated paper 
jam problems
1. Check to make sure that paper is correctly loaded in the trays and that all width 
guides are correctly set (see 
Printing tasks).
2. Make sure that the paper tray is set  for the size of paper installed and that the 
tray is not overloaded with paper.
3. Try turning over the stack of paper in the tray. If you are using prepunched or 
letterhead paper, try printing from optional Tray 1.
4. Do not use previously printed paper or torn, worn, or irregular paper. For 
recommended paper and other print media for your printer, see  Paper 
specifications  or go to 
www.hp.com/support/lj9050_lj9040.
5. Check the paper specifications. (See  Paper specifications or go to 
www.hp.com/support/lj9050_lj9040.) If paper is outside of the recommended 
specifications, problems can occur.
6. The printer might be dirty. Clean the printer as described in  Cleaning the 
printer , or go to 
www.hp.com/support/lj9050_lj9040.
7. Check that all damaged or jammed paper is removed from printer.
 
						

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Understanding printer messages
Printer messages appear on the printer control-panel display to relay the normal status of the 
printer (such as Processing Job ), or an error condition (such as  Close Right Door) that needs 
attention.  Resolving control-panel messages  lists messages that require attention, or that might 
raise questions. Messages are listed in alphabetical order, with numeric messages at the end of 
the list. Not all messages are listed, because some (such as  Ready) are self-explanatory.
Note Some printer messages are affected by the  AUTO CONTINUE and  CLEARABLE WARNINGS  settings in 
the  CONFIGURE DEVICE  menu, in the  System Setup  submenu, on the printer control panel (see 
System setup submenu ).
Using the printer online Help system
This printer features an online He lp system on the control panel that provides instructions for 
resolving most printer errors. Certain control-panel messages alternate with instructions about 
using the online Help system.
Whenever a ? appears in an error message or a message alternates with  FOR HELP TOUCH ?, 
press the   button to view the Help and use   and   to scroll through the message.
To exit the online He lp system, press  .
If a message persists
●Some messages (for example, requests to load a tray, or a message that a previous print job 
is still in the printer memory) allow yo u to press   to print, or to press 
STOP, and then select 
Cancel Job  to clear the job and eliminate the message.
●If a message persists after performing all of the recommended actions, contact an 
HP-authorized service or support provider. (See the HP support flyer, or go to  www.hp.com/
support/lj9050_lj9040.)