HP LaserJet Enterprise M4555h User Manual

							Restore factory settings
1.From the Home screen, scroll to and touch the  Administration menu.
2. Open the following menus:
●General Settings
● Restore Factory Settings
3. Select one or more categories of settings from the list, and then touch the  Reset button.
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							Interpret control-panel messages
Control-panel message types
Four types of control-panel messages can indicate the status of or problems with the product.
Message type Description
Status messages Status messages reflect the current state of the product. They inform you of normal product operationand require no interaction to clear them. They change as the state of the product changes. Whenever
the product is ready, not busy, and has no pending warning messages, the  Ready status message
appears if the product is online.
Warning messages Warning messages inform you of data and print errors. These messages typically alternate with the Ready or status messages and remain until you touch the  OK button. Some warning messages are
clearable. If the  Clearable Warnings  menu in the Display Settings  menu is set to the  Job option , the
next print job clears these messages.
Error messages Error messages communicate that some action must be performed, such as adding paper or clearing a jam.
Some error messages are auto-continuable. If the  Continuable Events menu in the Display Settings
menu is set to the  Auto-Continue option, the product continues normal operation after an auto-
continuable error message appears for 10 seconds.
NOTE: Pressing any button during the 10-second auto-continuable error message overrides the
auto-continue feature, and the button function takes precedence. For example, pressing the Stop 
button pauses printing and offers the option to cancel the print job.
Critical-error messages Critical error messages inform you of a product failure. You can clear some of these messages by turning the product off and then on. These messages are not affected by the  Auto-Continue setting. If
a critical error persists, service is required.
Control-panel messages
The product provides robust control panel messaging. When a message appears on the control panel,
follow the on-screen instructions to resolve the issue.  If the product displays an “Error” or “Attention”
message, and no steps are shown to resolve the issue,  turn the product off then on. Contact HP support
if you continue to experience issues with the product.
To get additional information for warnings that appear in the status line, touch the Warning button 
.
For additional information on a variety of topics, touch the Help button 
 in the upper-right corner of
the home screen.
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							Paper feeds incorrectly or becomes jammed
●The product does not pick up paper
●
The product picks up multiple sheets of paper
●
Prevent paper jams
●
Clear jams
The product does not pick up paper
If the product does not pick up paper from the tray, try these solutions.
1. Open the product and remove any jammed sheets of paper.
2. Load the tray with the correct size of paper for your job.
3. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Adjust the
guides so they are touching th e paper stack without bending it.
4. Check the product control panel to see if the product is waiting for you to acknowledge a prompt
to feed the paper manually. Load paper, and continue.
The product picks up multiple sheets of paper
If the product picks up multiple sheets of  paper from the tray, try these solutions.
1. Remove the stack of paper from the tray and flex  it, rotate it 180 degrees, and flip it over. Do not
fan the paper.  Return the stack of paper to the tray.
2. Use only paper that meets HP specifications for this product.
3. Use paper that is not wrinkled, folded, or damaged. If necessary, use paper from a different
package.
4. Make sure the tray is not overfilled. If it is , remove the entire stack of paper from the tray,
straighten the stack, and then return some of the paper to the tray.
5. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Adjust the
guides so they are touching th e paper stack without bending it.
Prevent paper jams
To reduce the number of paper jams, try these solutions.
1.Use only paper that meets HP specifications for this product.
2. Use paper that is not wrinkled, folded, or damaged. If necessary, use paper from a different
package.
3. Use paper that has not previously been printed or copied on.
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							4.Make sure the tray is not overfilled. If it is , remove the entire stack of paper from the tray,
straighten the stack, and then return some of the paper to the tray.
5. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Adjust the
guides so they are touching th e paper stack without bending it.
6. Make sure that the tray is fully inserted in the product.
7. If you are printing on heavy, embossed, or perf orated paper, use the manual feed feature and
feed sheets one at a time.
Clear jams
Jam locations
Use this illustration to identify locations of jams. In addition, instructions appear on the control panel to
direct you to the location of jammed paper and how to clear it.
NOTE: Internal areas of the product that might need to  be opened to clear jams have green handles
or green labels.
WARNING! To avoid electrical shock, remove any necklaces, bracelets, or other metal items before
reaching into the inside of the product.
Figure 13-1   Jam locations
1
2
3
5
8
7
4
6
1 Document feeder
2 Top cover area
3 Tray 1 area
4 Right door
5 Lower right door
NOTE:For the 1 x 500-sheet feeder, use this door to access Tray 3. For the 3 x 500-sheet feeder, use this
door to access Tray 3,4, and 5.
6 Tray 2, and optional Trays 3, 4, and 5
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							7Stapler door (for models with a stapler/stacker)
8 Output bins (for models with a stapler/stacker)
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							Clear jams in the document feeder
1.Open the document feeder cover.  
2.Lift the jam-access door, and remove any
jammed paper.  
3.
Close the document feeder cover.  
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							Clear paper jams in the stapler (for models with a stapler/stacker)
1.Press the release latch, and then slide the
stapler/stacker away from the product.  
2.
If jammed paper is visible, pull it straight out.  
3.Slide the stapler/stacker toward the product
until it latches in place.  
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							Clear staple jams (for models with a stapler/stacker)
1.Press the release latch, and then slide the
stapler/stacker away from the product.  
2.
Open the staple-cartridge door.  
3.Lift up on the staple-cartridge green handle,
and then pull the cartridge out of the stapler to
remove it.  
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							4.Lift up on the small lever at the back of the
staple cartridge.  
5.
Remove the jammed staples.  
6.Close the lever at the back of the staple
cartridge. Be sure that it snaps into place.  
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							7.Insert the staple cartridge into the stapler, push
down on the green handle until it snaps into
place, and then close the staple-cartridge
door.  
8.
Slide the stapler/stacker toward the product
until it latches in place.  
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