HP LaserJet 4250 User Manual

To clear jams from the optional 1,500-sheet tray 
1. Open the front door of the tray.
2. If the edge of the jammed paper is visible in the feed area, slowly pull the paper down
and out of the printer. (Do not pull the paper straight  out, or it will tear.) If the paper is not
visible, look in the top-cover area. (See 
To clear jams from the top-cover and print-
cartridge areas .)
3. Make sure that the paper does not exceed  the fill marks on the paper guides, and that
the front edge of the stack  is...

Clearing jams from the optional duplexer 
If you are duplexing a print job and experience a jam, use this procedure to check for the
jam and to clear it.
To clear jams from the optional duplexer
1. Lift the optional duplexer up and then pull it out to remove it.
2. Remove any paper that is on top of tray 2. (You might need to reach inside the printer.)
3. Slowly pull any paper out of the optional duplexer.
4. Insert the optional duplexer into the printer.
5. If a jam message persists, a sheet is still...

Clearing jams from the output areas 
Use the procedures in this section to clear jams that occur in the rear output bin or in the
optional stacker or stapler/stacker.
To clear jams from the rear output bin
1. Open the rear output bin. If most of the  media is still inside the printer, it might be easier
to remove it through the top-cover area. (See 
To clear jams from the top-cover and print-
cartridge areas .)
2. Grasp both sides of the media, and slowly  pull the media out of the printer. (Loose toner...

Clearing jams from the fuser area
Use this procedure only in these situations:
●Media has jammed inside the fuser and cannot  be removed from the top-cover area or
the rear-output area.
● A sheet of media has torn while you were trying to clear a jam from the fuser.
To clear jams from the fuser area
1. Turn the printer power off and  unplug the power cord from the printer.
WARNING!The fuser is very hot. To avoid minor burns,  wait 30 minutes for the fuser to cool before
removing it from the printer.
2....

5. Firmly grasp each side of the fuser. Push the blue levers upward and pull the fuser
straight out of the printer.
6. Remove the jammed media. If necessary, lift the  black plastic guide that is located on
the top of the fuser to gain access to the jammed sheet. You can also turn the jam-
clearing wheel that is located on the side of  the fuser to attempt to eject the jammed
sheet.
CAUTIONDo not use a sharp object to clear media  from the fuser area. You might damage the fuser.
7. Push the fuser firmly...

9. Plug the power cord into the printer.
10. Replace the optional duplexer, if it was removed.
11. Turn the printer power on.
12. If a jam message persists, a sheet is still jammed in the printer. Look for the jam in
another location. (See 
Jam locations .)
After clearing all jams, you need to send the print job again because the printer power has
been turned off.
Clearing jams from the optional stacker or stapler/stacker
Paper jams can occur in the optional stacker or the optional stapler/stacker....

2. Carefully remove any jammed paper.
3. Close the door on the stacker or stapler/stacker.
4. If a jam message persists, a sheet is still jammed. Look for it in another location. Check
the front of the accessory and  carefully remove any jammed paper. (See 
Jam locations.)
NOTE
The output bin must be pushed down into  the lowest position for printing to continue.
To clear staple jams from the optional stapler/stacker
NOTEClear staple jams when the message  JAM IN STAPLER appears on the printer control-...

3. Insert the staple cartridge into the stapler unit, and rotate the stapler unit toward the rear
of the printer until the unit snaps into place.
The stapler needs to reload after clearing a staple jam, so the first few documents (up to
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 stacker bin is not blocked.
Solving repeated jams
If paper jams occur frequently, try the following:
● Check all the jam...

●Try a different brand of paper.
● Do not print on both sides of envelopes or transparencies. (See 
Printing envelopes  or
Printing on transparencies .)
● Print only on full sheets of labels and do  not print on both sides of label sheets. (See
Printing on labels.)
● Check that the power supplied to the  printer is steady and meets printer specifications.
(See 
Electrical specifications .)
● Clean the printer. (See 
Cleaning the printer .)
● Perform preventive printer maintenance if maintenance is due....

Understanding printer messages
Printer messages appear on the printer control panel display to relay the normal status of the
printer (such as  Processing...) or an error condition (such as  CLOSE TOP COVER) that
needs attention. 
Interpreting control-panel messages  lists the most common messages that
require attention or that might raise questions. Messages are listed in alphabetical order first,
with numeric messages at the end of the list.
Using the printer online Help system
This printer features an...