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HP Color LaserJet 4500 and 4550 Printer Series - Troubleshooting Paper Handling Problems and Paper Jams

This document contains solutions for various paper handling problems that can arise with the HP Color LaserJet 4550 series printer. The second half of this document includes picture references and solutions for paper jams. Use only paper that meets the specifications outlined in the HP LaserJet Printer Family Print Media Guide . Refer to the product User's Guide for information on paper specifications for this printer. Paper handling problems are described in the following tables.

Printer feeds multiple sheets

Cause
Solution
The input tray is overfilled.
Remove excess paper from the input tray.
The paper is not under the tabs in the input tray (Trays 2 and 3).
Open the input tray and verify that the paper is seated under the metal tabs.
Print paper is sticking together.
Remove paper, flex it, rotate it 180 degrees or flip it over, and then reload it into the tray. Note: Do not fan paper. Fanning can cause static electricity, which can cause paper to stick together. Check for excessive humidity.
Paper does not meet the specifications for this printer.
Only use paper that meets the paper-use specifications for this printer (refer to the User's Guide ).

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Printer feeds incorrect page size

Cause
Solution
The correct paper size is not loaded in the input tray.
Load the correct size paper in the input tray.
The correct paper size is not selected in software program or printer driver.
Select the correct paper size from software program or printer driver.
The correct paper size for Tray 1 is not selected in the printer control panel.
From the control panel, select the correct paper size for Tray 1 (only available with TRAY=CASSETTE).
Paper-size knob is incorrectly set (Tray 3).
Verify that the paper-size knob on the side of Tray 3 is set to the proper paper size.

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Paper does not feed automatically

Cause
Solution
Manual feed is selected in the software program.
This printer does not support manual feed. Do not select manual feed in the software program.
The correct size of paper is not loaded.
Load the correct size of paper.
The input tray is empty.
Load paper into the input tray.
Paper from a previous jam has not been completely removed.
Open the printer and remove any paper in the paper path. Closely inspect the fuser area for jams. For more information, refer to the User's Guide .
Paper is not selected from the printer and software
Verify that the paper selection is made at the printer's control panel and in the software

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Paper does not feed from Input Trays 2 or 3

Cause
Solution
Manual feed is selected in the software program.
This printer does not support manual feed. Do not select manual feed in the software program.
Incorrect paper type is selected in the software
Verify that the correct paper type is selected in the software application
The correct size of paper is not loaded.
Load the correct size of paper.
The input tray is empty.
Load paper in the input tray.
The paper guides in the tray(s) are not correctly set.
Reset the paper guides.
The correct paper type for the input tray is not selected in the printer control panel.
From the printer control panel, select the correct paper type for the input tray.
Paper from a previous jam has not been completely removed.
Open the printer and remove any paper in the paper path. Closely inspect the fuser area for jams. For more information, refer to the User's Guide .
Tray 3 (500-sheet paper feeder) does not appear as an input tray option.
Tray 3 only displays as an option if it is installed. Verify that Tray 3 is correctly installed. Verify that the printer driver has been configured to recognize Tray 3.
The tray is incorrectly installed.
Reinstall Tray 3. Print a Configuration page to confirm that Tray 3 is configured properly.

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Transparencies or glossy paper will not feed

Cause
Solution
The correct paper type is not specified in software or printer driver.
Verify that the correct paper type is selected in software or printer driver.
Transparencies are out of specifications
Use transparencies specifically recommended for the CLJ4550.
The input tray is overfilled.
Remove excess paper from the input tray. Do not load more than 50 transparencies in any tray.
Paper in another input tray is the same size as the transparencies and the printer is defaulting to the other tray.
Ensure that the input tray containing the transparencies or glossy paper is selected in the software program or printer driver. Use the printer control panel to configure the tray to the paper type that is loaded.

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Envelopes jam or will not feed

Cause
Solution
Envelopes are loaded in an unsupported tray. Envelopes should only be printed from Tray 1.
Load envelopes into Tray 1. Note : Do not load more than 10 envelopes into Tray 1. Envelopes should not exceed 90 grams per meter squared (24lb bond).
Envelopes are curled or damaged.
Try using different envelopes.
Envelopes are sealing because the moisture content is too high.
Try using different envelopes.
Envelope orientation is incorrect.
Verify that the envelope is loaded correctly. For more information, refer to the User's Guide.
The printer does not support the envelopes.
For more information, refer to the User's Guide , or check the HP LaserJet Printer Family Print Media Guide.

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Output is curled or wrinkled

Cause
Solution
Paper does not meet the specifications for this printer.
Only use paper that meets the paper-use specifications for this printer. For more information, refer to the User's Guide . Click here to access the paper specification guide and User's Guide for the HP Color LaserJet 4550 series printers.
Paper is damaged or in poor condition.
Remove paper from the input tray and load paper that is in good condition.
Printer is operating in an excessively humid environment.
Verify that the printing environment is within humidity specifications.
Printing large, solid-filled areas.
Large, solid-filled areas can cause excessive curl. Try using a different pattern.
Paper was not stored correctly and may have absorbed moisture.
Remove paper and replace it with paper from a new, unopened package.
Paper has poorly cut edges.
Remove paper, flex it, rotate it 180 degrees or turn it over, and then reload it into the input tray. If the problem persists, replace the paper.
Printing to the top output bin.
Use other output bin.

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Printer will not duplex

Cause
Solution
Printer is not recognizing the duplex printing accessory.
Print a Configuration page to verify configuration. Set up the printer driver to recognize the duplex printing accessory. Verify that the duplex printing accessory power cord is plugged in.
Trying to duplex on an unsupported paper.
Verify that the paper used is supported for duplex printing.
The door to the rear-output bin is open.
Close the door to the rear-output bin.

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Clearing paper jams

Clearing paper jams in the middle front drawer area

  1. Pull open the middle front drawer to access the paper.

    Figure 1: Pulling open the middle front drawer.

    NOTE: When removing the transfer belt assembly, do not touch the transfer belt material.
  2. Remove the transfer belt assembly by lifting up on its blue handles.

    Figure 2: Removing the transfer belt assembly.

  3. Remove any jammed or torn paper. Be sure to lift the metal flap by its green tab and remove any paper.

    Figure 3: Removing jammed or torn paper.

    NOTE: Inspect the rear area inside the drawer and remove jammed or torn paper.
  4. Reinstall the transfer belt.

    Figure 4: Reinstalling the transfer belt.

  5. Close the drawer. The printer will warm up and return to the READY state.

    Figure 5: Closing the drawer.

    NOTE: If this action does not resolve the problem, the printer will display an alternate message.

Clearing paper jams in the Tray 2 area

NOTE: Inspect the input trays when clearing paper jams. Note that opening and closing input trays has no effect on clearing paper jam messages.
  1. Pull out Tray 2 and place it on a flat surface.

    Figure 6: Pulling out Tray 2.

  2. Inspect the rollers and remove any partially fed paper. Remove all pieces of paper.

    Figure 7: Inspecting the rollers.

  3. Inspect inside the printer and remove all paper.

    Figure 8: Inspecting the inside of the printer.

  4. Close Tray 2.

    Figure 9: Closing Tray 2.

Clearing paper jams in the optional Tray 3 area

NOTE: Inspect the input trays when clearing paper jams. Note that opening and closing input trays has no effect on clearing paper jam messages.
  1. Pull out Tray 3 and place it on a flat surface.

    Figure 10: Pulling out Tray 3.

  2. Inspect the rollers and remove any partially fed paper. Remove all pieces of paper.

    Figure 11: Inspecting the rollers.

  3. Inspect inside the printer and remove all paper.

    Figure 12: Inspecting the inside of the printer.

  4. Close Tray 3.

    Figure 13: Closing Tray 3.

Clearing paper jams in the rear door areas

WARNING: Do not touch the fuser: It is hot and could cause burns. The fuser's operating temperature is 190 degrees C (374 degrees F). Wait 30 minutes to allow the fuser to cool down before touching the fuser.
  1. If the duplex printing accessory is installed, open the rear-duplex cover.

    Figure 14: Opening the rear-duplex cover.

  2. Open the upper-rear door.

    Figure 15: Opening the upper-rear door.

  3. Inspect the upper-paper path area inside the rear door and remove any jammed or torn paper.

    Figure 16: Inspecting the upper-paper path area.

  4. Open the fuser door and remove any paper.

    Figure 17: Opening the fuser door and removing any paper.

  5. Close the fuser door.

    Figure 18: Closing the fuser door.

  6. Close the upper-rear door.

    Figure 19: Closing the upper-rear door.

  7. Close the rear-duplex cover if it was opened. The printer will warm up and return to the READY state.

    Figure 20: Closing the rear-duplex cover.

    NOTE: If these actions do not resolve the problem, the printer will display an alternate jam message.

Clearing paper jams in the front-duplex drawer area

  1. Pull out the duplex drawer and place it on a flat surface.

    Figure 21: Pulling out the duplex drawer.

  2. Remove paper from the duplex drawer. Rotate the thumbwheel to eject paper. Remove any torn pieces of paper.

    Figure 22: Removing torn paper from the duplex drawer.

  3. Inspect inside the printer and remove paper. Remove any torn pieces of paper.

    Figure 23: Inspecting the inside of the printer and removing paper.

  4. Close the duplex drawer. The printer will return to the READY state in a few minutes.

    Figure 24: Closing the duplex drawer.

    NOTE: If these actions do not resolve the problem, the printer will display an alternate jam message.

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