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Blinking Lights on the HP Deskjet 6940, 6940dt, and 6943 Printer Series

Blinking lights

The lights on the front of the HP product can be on, off, or blinking (flashing), depending on the status of the product. The lights indicate product status and are useful for diagnosing printing problems.

Figure 1: Lights and buttons on the product control panel

Graphic: Lights and buttons on the control panel
1 - Power light
2 - Print Cancel button
3 - Resume light
4 - Network light
5 - Report Page button
6 - Print Cartridge status lights

The following sections describe the most common combinations of blinking lights, followed by solutions for each combination. Find the blinking lights pattern you are experiencing, and then follow the steps to resolve the issue.

Issue: The Power light blinks

In this normal condition, the following light pattern displays on the control panel:

  • Power light: Blinking

  • Resume light: Off

  • Network light: Off or on, depending on network connection

  • Print Cartridge status lights: Off

Figure 2: The Power light blinks

Illustration : Power light blinks
  • Cause

    The product is preparing to print. The Power light blinks while the product receives the data.

Solution

No action is necessary. Wait for the product to finish processing the print job.

Issue: The Resume light blinks and a message might display on the computer

In this error condition, the following light pattern displays on the control panel:

  • Power light: On

  • Resume light: Blinking

  • Network light: Off or on, depending on network connection

  • Print Cartridge status lights: Off

Figure 3: The Resume light blinks

Illustration: The Resume light blinks
  • Cause

    Following is a list of possible causes for a blinking Resume light:

    • The product is out of paper.

    • Paper is jammed in the product.

    • The cartridges are incompatible with the product.

    • The cartridges are not inserted correctly.

How do I resolve this issue? The following sections describe the most common messages that might display on the computer in combination with a blinking Resume light. To resolve the issue, find the message that displays on your computer (from the following choices), and then expand that section for solutions.

An ' Out of paper ' message displays on the computer

The Resume light blinks and an 'Out of paper' message displays on the computer.

Cause: The product is out of paper.

Solution

Follow these steps to load paper in the product.

  1. Raise the output tray.

    Figure 4: Raise the output tray

    Graphic: Raise the output tray
  2. Slide the paper width guides to their outermost positions.

  3. Insert a stack of paper (print-side down) into the tray, and then push the stack forward in the tray until it stops.

  4. Slide the paper width guides inward to rest against the edge of the paper.

    Figure 5: Load paper and then slide the paper width guides inward

    Graphic: Load paper and then slide the paper width guides inward
  5. Lower the output tray.

    Figure 6: Lower the output tray

    Graphic: Lower the output tray

A ' Print cartridge missing ' message displays on the computer

The Resume light blinks and a 'Print cartridge missing' message displays on the computer.

Cause: One or both of the cartridges is missing, or the cartridges do not have full electrical contact with the product.

A ' Wrong cartridge inserted ' message displays on the computer

The Resume light blinks and a 'Wrong cartridge inserted' message displays on the computer.

Cause: The cartridges might be incompatible with the product, or the cartridges might not be seated properly in the carriage.

Solutions

Try the following solutions in the order presented to resolve the issue. When one of the solutions resolves the issue, there is no need to continue troubleshooting.

Solution one: Check cartridge compatibility

To purchase cartridges or check cartridge compatibility for your printer, go to HP Home & Home Office Store (US only), and then click Ink Toner & Paper.

If you are located outside of the US, follow these steps to purchase cartridges using HP SureSupply.

  1. Go to HP SureSupply .

  2. Scroll to the bottom of the page and make sure that the country/region location is correct.

Genuine HP cartridges can also be purchased from other retailers.

Which cartridges you use might depend on your country/region. Follow these steps to purchase cartridges or check cartridge compatibility for your printer using HP SureSupply.

  1. Go to HP SureSupply .

  2. Scroll to the bottom of the page and make sure that the country/region location is correct.

NOTE: For the United States only, go to the HP Home & Home Office Store .

Genuine HP cartridges can also be purchased from other retailers.

  • If the cartridges are compatible, continue to the next solution.

  • If the cartridges are not compatible, skip to Solution five to replace the cartridges.

Solution two: Remove, inspect, and reseat the cartridges

The cartridge might not have full electrical contact with the product. Removing and reinstalling the cartridge might help. Follow these steps to remove and reinstall the cartridges.

  1. Press the Power button () to turn on the product, if it is not already turned on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 30: Open the cover

    Graphic: Open the cover
  3. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 31: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  4. Slide the cartridge out of its slot.

    Figure 32: Remove the cartridge

    Graphic: Remove the cartridge
    CAUTION: Do not touch the copper-colored contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.

    Figure 33: Do not touch the contacts or nozzles

    Graphic: Do not touch the contacts or nozzles
  5. Inspect the cartridge. Make sure that no clear protective tape remains on the contacts or nozzles. Remove any clear protective tape from the nozzles.

    Figure 34: Remove any clear protective tape from the nozzles

    Illustartion of removing the protective tape from the nozzles
  6. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot. Make sure that the icon on the cartridge matches the icon on the slot.

    Figure 35: Insert the cartridge

    Graphic: Insert the cartridge
    • Insert the tri-color cartridge into the slot on the left

    • Insert the black or photo cartridge into the slot on the right

  7. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 36: Close the cartridge latch

    Graphic: Close the cartridge latch
  8. Repeat these steps for the other cartridge.

  9. Close the cover on the product.

    Figure 37: Close the cover

    Graphic: Close the cover
  • If these steps resolved the issue, you do not need to continue troubleshooting.

  • If the issue persists, continue to the next solution.

Solution three: Clean the cartridge contacts

Follow these steps to clean the cartridge contacts.

NOTE: Clean the contacts quickly so that the print cartridge is not outside of the product for more than 30 minutes. If the cartridge is outside of the product for too long, the ink can dry and clog the nozzles.
  1. Gather the following materials:

    • Clean distilled water. Use bottled or filtered water if distilled water is not available. Tap water can contain contaminants that damage the cartridge.

    • Clean cotton swabs or any soft, lint-free material that will not stick to the cartridges (coffee filters work well).

    • Sheets of paper or a paper towel to rest the cartridges on during cleaning.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 38: Open the cover

    Graphic: Open the cover
  3. Disconnect the power cord from the rear of the product.

    WARNING: You must disconnect the power cord before cleaning the electrical contacts inside the product to avoid electrical shock.
  4. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 39: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  5. Slide the cartridge out of its slot.

    Figure 40: Remove the cartridge

    Graphic: Remove the cartridge
    CAUTION: Do not remove both cartridges at the same time. Remove and clean each cartridge one at a time. Do not leave a cartridge outside the product for more than 30 minutes.
  6. Dip a swab in the clean water, and then squeeze it to remove most of the moisture. The swab should be only slightly damp.

  7. Use the damp swab to clean the contacts on the cartridge.

    CAUTION: Do not clean the ink nozzles on the cartridge.

    Figure 41: Clean the contacts

    Graphic: Clean the cartridge contacts
    1 - Copper-colored contacts
    2 - Ink nozzles (do not clean)
  8. Lightly moisten another swab with distilled water, and then squeeze any excess water from the swab.

  9. Use the swab to clean the electrical contacts in the carriage, located inside the product. Allow the contacts to dry for approximately 10 minutes, or use a new swab to dry the contacts.

  10. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot.

    Figure 42: Insert the cartridge

    Graphic: Insert the cartridge
  11. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 43: Close the cartridge latch

    Graphic: Close the cartridge latch
  12. Repeat these steps to clean the contacts on the other cartridge.

  13. Close the cover on the product.

    Figure 44: Close the cover

    Graphic: Close the cover
  14. Reconnect the power cord to the back of the product.

  15. Press the Power button () to turn on the product.

  • If these steps resolved the issue, you do not need to continue troubleshooting.

  • If the issue persists, continue to the next solution.

Solution four: Repeat reseating and cleaning steps

If you have completed all of the steps and the issue persists, repeat the previous solutions to inspect the cartridges and clean the cartridge contacts.

  • If these steps resolved the issue, you do not need to continue troubleshooting.

  • If the issue persists, continue to the next solution.

Solution five: Replace the cartridges

Follow these steps to replace the cartridges in the product.

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Click the Play button () to view an animation on how to replace the cartridges.

  1. Press the Power button () to turn on the product, if it is not already on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 45: Open the cover

    Graphic: Open the cover
  3. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 46: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  4. Slide the cartridge out of its slot.

    Figure 47: Remove the cartridge

    Graphic: Remove the cartridge
  5. Remove the new cartridge from its package.

  6. Carefully pull the pink pull tab to remove the plastic tape on the cartridge.

    Figure 48: Remove the plastic tape

    Graphic: Remove the plastic tape
    1 - Pink pull tab
    CAUTION: Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.

    Figure 49: Do not touch the electrical contacts or the ink nozzles on the cartridge

    Graphic: Do not touch the electrical contacts or ink nozzles
  7. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot. Make sure that the icon on the cartridge matches the icon on the slot.

    Figure 50: Insert the cartridge

    Graphic: Insert the cartridge
    • Insert the tri-color cartridge into the slot on the left

    • Insert the black or photo cartridge into the slot on the right

  8. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 51: Close the cartridge latch

    Graphic: Close the cartridge latch
  9. Repeat these steps to replace the other cartridge, if necessary.

  10. Close the cover on the product.

    Figure 52: Close the cover

    Graphic: Close the cover

A ' Remove and check [left/right] cartridge ' message displays on the computer

The Resume light blinks and a 'Remove and check [left/right] cartridge' message displays on the computer.

Cause: The cartridges might not be seated correctly in the carriage, or the cartridge contacts might need to be cleaned.

A ' Paper jam ' message displays on the computer

The Resume light blinks and a 'Paper jam' message displays on the computer.

Cause: The product has a paper jam.

Solutions

IMPORTANT: You must follow these solutions in the order presented to resolve the issue.

Solution one: Turn the printer off and on again

Follow these steps to turn the product off and then on again.

Step one: Turn the printer off and on again
  1. Press the Power button () to turn off the product. If the product does not turn off, continue to the next solution.

  2. Wait 60 seconds.

  3. Press the Power button () to turn the product on.

    NOTE: The product might go through a warm-up period which might last up to two minutes. Wait until the warm-up period completes before you continue.
Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution two: Clear the paper jam

Follow these steps to clear any jammed paper from the product. Always clear jammed paper from the back of the product first, and then from the front.

Step one: Remove any loose paper from the tray

Remove any loose sheets of paper from the input tray and the output tray.

CAUTION: Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism.
Step two: Clear a paper jam from the rear of the printer

Choose from the following three methods to check for and clear any jammed paper from the rear of the product.

Method one: Clear the jam through the rear access door
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the rear of the product.

  3. Remove the rear access door. Press the two latch handles on the rear access door toward each other, and then pull the door out to remove it.

    Figure 76: Remove the rear access door

    Graphic: Remove the rear access door
  4. Gently pull out any jammed paper from the rear of the product. If printing labels, make sure that a label did not detach from the label sheet while passing through the product.

    NOTE: If the paper tears while removing it from the rollers, check the rollers and wheels for torn pieces of paper that might remain inside the product. If any torn pieces of paper remain inside the product, more paper jams are likely to occur.
  5. Reattach the rear access door to the rear of the product and make sure that it snaps into place.

    Figure 77: Reattach the rear access door

    Graphic: Reattach rear access door
Method two: Clear the jam from the two-sided printing accessory (duplexer)
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the rear of the product.

  3. Remove the duplexer. Press and hold the buttons on the sides of the duplexer, and then pull the duplexer out to remove it.

    Figure 78: Remove the duplexer

    Graphic: Remove the duplexer
  4. Gently pull out any jammed paper from the rear of the product.

  5. Open the door on the duplexer.

    Figure 79: Open the door on the duplexer

    Graphic: Open the door on the duplexer
  6. Gently pull out any paper from inside the duplexer, and then close the door on the duplexer. Make sure that the door snaps closed.

  7. Reattach the duplexer to the rear of the product and make sure that it snaps into place.

Method three: Clear the jam from the two-sided printing accessory (duplexer) with the small paper tray attached
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the rear of the product.

  3. Remove the duplexer with the small paper tray attached. Press and hold the buttons on the sides of the duplexer, and then pull the duplexer out to remove it.

    Figure 80: Remove the duplexer with the small paper tray attached

    Graphic: Remove the duplexer with the small paper tray attached
  4. Gently pull out any jammed paper from the rear of the product.

  5. On the duplexer, lift the lever on the back of the small paper tray to unhook the tray.

    Figure 81: Unhook the small paper tray

    Graphic: Unhook the small paper tray
  6. Tilt the small paper tray forward, and then open the door on the duplexer.

    Figure 82: Open the door on the duplexer

    Graphic: Open the door on the duplexer
  7. Gently pull out any paper from inside the duplexer, and then close the door on the duplexer. Make sure that the door snaps closed.

  8. Close the door on the duplexer, and then secure the lever on the small paper tray to hold the duplexer door in place.

  9. Reattach the duplexer with the small paper tray to the rear of the product, and make sure that it snaps into place.

Step three: Clear the jam from the front of the printer

Follow these steps to clear the jam from the front of the product.

  1. Make sure that the power cord is disconnected from the back of the product. If the power cord is not disconnected, disconnect it now.

  2. Open the product cover.

    Figure 83: Open the cover

    Graphic: Open the cover
  3. Gently pull out any jammed paper from inside the product.

    CAUTION: Remove the jammed paper carefully. Removing jammed paper incorrectly can damage the printing mechanism.
  4. Make sure that there are no torn pieces of paper left inside the product.

  5. Close the cover on the product.

    Figure 84: Close the cover

    Graphic: Close the cover
  6. Reconnect the power cord to the rear of the product.

  7. Press the Power button () to turn on the product.

Step four: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution three: Make sure that the carriage moves freely

Follow these steps to make sure that the carriage can move freely.

Step one: Check the carriage path

Follow these steps to check the carriage path.

  1. If the product is not turned on, press the Power button () to turn it on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 85: Open the cover

    Graphic: Open the cover
  3. With the product turned on, disconnect the power cord from the rear of the product.

    WARNING: You must unplug the power cord to move the carriage by hand to avoid the risk of electrical shock.
  4. Check for any paper or objects that might be restricting the carriage, and then remove any paper or objects that you find.

  5. Reach inside the product, and then manually move the carriage.

    • If the carriage is stuck on the right side, move the carriage to the left side of the product.

    • If the carriage is stuck on the left side, move the carriage to the right side of the product.

    • If the carriage is stuck in the middle, move the carriage to the right.

  6. Make sure that the carriage can move freely across the width of the product by gently pushing the carriage to the left, and then to the right.

  7. Close the cover on the product.

    Figure 86: Close the cover

    Graphic: Close the cover
  8. Reconnect the power cord to the back of the product.

  9. Press the Power button () to turn on the product.

Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution four: Clean the rollers

Dust, paper fiber, and other debris might accumulate on the paper feed rollers and cause paper jams and paper feed issues. Follow these steps to clean the paper feed rollers.

Step one: Clean the rollers

Choose from the following methods to clean the paper feed rollers.

Method one: Remove the rear access door to clean the rollers
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the back of the product.

  3. Remove the rear access door. Press the two latch handles on the rear access door toward each other, and then pull the door out to remove it.

    Figure 87: Remove the rear access door

    Graphic: Remove the rear access door
  4. Gather the following materials:

    • A clean, lint-free cloth, or any cloth that will not come apart or leave fibers

    • Distilled, filtered, or bottled water (tap water might damage the product)

  5. Lightly dampen a clean, lint-free cloth with bottled or distilled water, and then squeeze any excess liquid from the cloth.

  6. Press the cloth against the rollers and rotate them upwards with your fingers to clean them all the way around. Apply a moderate amount of pressure to remove any dust or dirt buildup.

    Figure 88: Clean the rollers

    Graphic: Paper rollers
  7. Allow the rollers to dry for 10 or 15 minutes.

  8. Reattach the rear access door to the rear of the product and make sure that it snaps into place.

    Figure 89: Reattach the rear access door

    Graphic: Reattach rear access door
  9. Reconnect the power cord to the rear of the product.

  10. Press the Power button () to turn on the product.

Method two: Remove the duplexer to clean the rollers
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the back of the product.

  3. Remove the duplexer. Press and hold the buttons on the sides of the duplexer, and then pull the duplexer out to remove it.

    Figure 90: Remove the duplexer

    Graphic: Remove the duplexer
  4. Gather the following materials:

    • A clean, lint-free cloth, or any cloth that will not come apart or leave fibers

    • Distilled, filtered, or bottled water (tap water might damage the product)

  5. Lightly dampen a clean, lint-free cloth with bottled or distilled water, and then squeeze any excess liquid from the cloth.

  6. Press the cloth against the rollers and rotate them upwards with your fingers to clean them all the way around. Apply a moderate amount of pressure to remove any dust or dirt buildup.

    Figure 91: Clean the rollers

    Graphic: Paper rollers
  7. Open the door on the duplexer.

    Figure 92: Open the door on the duplexer

    Graphic: Open the door on the duplexer
  8. Clean the rollers inside the duplexer with the damp cloth. Press the cloth against the rollers and rotate them upwards with your fingers to clean them all the way around.

  9. Allow the rollers to dry for 10 or 15 minutes.

  10. Close the door on the duplexer.

  11. Reattach the duplexer to the rear of the product and make sure that it snaps into place.

Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution five: Reset the printer

Sometimes a paper jam error persists even though there is no jammed paper (false paper jam). Follow these steps to perform a power reset, which will clear a false paper jam error.

Step one: Perform a power reset

  1. Press the Power button () to turn on the product.

  2. With the product turned on, disconnect the power cord from the rear of the product.

  3. Unplug the power cord from the wall outlet.

  4. Wait at least 15 seconds.

  5. Plug the power cord back into the wall outlet.

  6. Reconnect the power cord to the rear of the product.

  7. If the product does not turn on by itself, press the Power button () to turn it on.

Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution six: Service the printer

If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.

Issue: The Power light and one or both of the Print Cartridge status lights are on

The following light pattern displays on the control panel:

  • Power light: On

  • Resume light: Off

  • Network light: Off or on, depending on network connection

  • Print Cartridge status lights: On

Figure 93: The Power light and one or both of the Print Cartridge status lights are on

Illustration: The Power light and one or both of the Print Cartridge status lights are on
NOTE: The left Print Cartridge status light represents the tri-color cartridge that is installed in the left side of the carriage. The right Print Cartridge status light represents the black or photo cartridge that is installed on the right side of the carriage.
  • Cause

    One or both of the cartridges might be low on ink.

Solution

Follow these steps in the order presented to resolve the issue.

Step one: Check ink levels

Follow these steps to check the estimated ink levels in the cartridges.

  1. Open HP Solution Center:

    • Windows XP

      On the Windows taskbar, click Start, click All Programs, point to HP, and then click HP Solution Center.

    • Windows Vista

      On the Windows taskbar, click the Windows icon (), click All Programs, point to HP, and then click HP Solution Center.

    HP Solution Center opens.

  2. In the HP Solution Center, click Settings.

  3. Under Print Settings, click Printer Toolbox. The Toolbox opens.

  4. Click the Estimated Ink Levels tab to view the information on ink levels.

    • If one or both cartridges are low on ink, consider replacing the cartridges. Continue to the next step to replace the cartridges.

    • If neither cartridge is low on ink, press the Resume button () to continue printing.

    NOTE: Ink level warnings and indicators provide estimates for planning purposes only. When a cartridge is low on ink, consider having a replacement cartridge available to avoid possible printing delays. Cartridges do not need to be replaced until print quality becomes unacceptable.

Step two: Replace the cartridges

Follow these steps to replace cartridges.

Get Macromedia Flash now.
To view the following movie you must have the Flash Player installed on your system.
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Click the Play button () to view an animation on how to replace the cartridges.

  1. Press the Power button () to turn on the product, if it is not already on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 94: Open the cover

    Graphic: Open the cover
  3. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 95: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  4. Slide the cartridge out of its slot.

    Figure 96: Remove the cartridge

    Graphic: Remove the cartridge
  5. Remove the new cartridge from its package.

  6. Carefully pull the pink pull tab to remove the plastic tape on the cartridge.

    Figure 97: Remove the plastic tape

    Graphic: Remove the plastic tape
    1 - Pink pull tab
    CAUTION: Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.

    Figure 98: Do not touch the electrical contacts or the ink nozzles on the cartridge

    Graphic: Do not touch the electrical contacts or ink nozzles
  7. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot. Make sure that the icon on the cartridge matches the icon on the slot.

    Figure 99: Insert the cartridge

    Graphic: Insert the cartridge
    • Insert the tri-color cartridge into the slot on the left

    • Insert the black or photo cartridge into the slot on the right

  8. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 100: Close the cartridge latch

    Graphic: Close the cartridge latch
  9. Repeat these steps for the other cartridge, if necessary.

  10. Close the cover on the product.

    Figure 101: Close the cover

    Graphic: Close the cover

Issue: The Power light is on and one or both of the Print Cartridge status lights blink

The following light pattern displays on the control panel:

  • Power light: On

  • Resume light: Off

  • Network light: Off or on, depending on network connection

  • Print Cartridge status lights: Blinking

Figure 102: The Power light is on and one or both of the Print Cartridge status lights blink

Graphic: The Power light is on and one or both of the Print Cartridge status lights blink
  • Cause

    One or both cartridges need to be cleaned or replaced.

Solutions

Follow these solutions to resolve the issue with the problem cartridge.

  • If the right Print Cartridge status light blinks, the right (black) cartridge is the problem cartridge.

  • If the left Print Cartridge status light blinks, the left (tri-color) cartridge is the problem cartridge.

Solution one: Clean the cartridge contacts

Follow these steps to clean the contacts on the problem cartridge.

NOTE: Clean the contacts quickly so that the print cartridge is not outside of the product for more than 30 minutes. If the cartridge is outside of the product for too long, the ink can dry and clog the nozzles.
  1. Gather the following materials:

    • Clean distilled water. Use bottled or filtered water if distilled water is not available. Tap water can contain contaminants that damage the cartridge.

    • Clean cotton swabs or any soft, lint-free material that will not stick to the cartridges (coffee filters work well).

    • Sheets of paper or a paper towel to rest the cartridges on during cleaning.

  2. Open the product cover, if it is not already open. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 103: Open the cover

    Graphic: Open the cover
  3. Disconnect the power cord from the rear of the product.

    WARNING: You must disconnect the power cord before cleaning the electrical contacts inside the product to avoid electrical shock.
  4. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 104: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  5. Slide the cartridge out of its slot.

    Figure 105: Remove the cartridge

    Graphic: Remove the cartridge
    CAUTION: Do not remove both cartridges at the same time. Remove and clean each cartridge one at a time. Do not leave a cartridge outside the product for more than 30 minutes.
  6. Dip a swab in the clean water, and then squeeze it to remove most of the moisture. The swab should be only slightly damp.

  7. Use the damp swab to clean the contacts on the cartridge.

    CAUTION: Do not clean the ink nozzles on the cartridge.

    Figure 106: Clean the contacts

    Graphic: Clean the cartridge contacts
    1 - Copper-colored contacts
    2 - Ink nozzles (do not clean)
  8. Lightly moisten another swab with distilled water, and then squeeze any excess water from the swab.

  9. Use the swab to clean the electrical contacts in the carriage, located inside the product. Allow the contacts to dry for approximately 10 minutes, or use a new swab to dry the contacts.

  10. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot.

    Figure 107: Insert the cartridge

    Graphic: Insert the cartridge
  11. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 108: Close the cartridge latch

    Graphic: Close the cartridge latch
  12. Close the cover on the product.

    Figure 109: Close the cover

    Graphic: Close the cover
  13. Reconnect the power cord to the back of the product.

  14. Press the Power button () to turn on the product.

  • If these steps resolved the issue, you do not need to continue troubleshooting.

  • If the issue persists, continue to the next solution.

Solution two: Replace the cartridge

Follow these steps to replace the problem cartridge.

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  1. Press the Power button () to turn on the product, if it is not already on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 110: Open the cover

    Graphic: Open the cover
  3. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 111: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  4. Slide the cartridge out of its slot.

    Figure 112: Remove the cartridge

    Graphic: Remove the cartridge
  5. Remove the new cartridge from its package.

  6. Carefully pull the pink pull tab to remove the plastic tape on the cartridge.

    Figure 113: Remove the plastic tape

    Graphic: Remove the plastic tape
    1 - Pink pull tab
    CAUTION: Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.

    Figure 114: Do not touch the electrical contacts or the ink nozzles on the cartridge

    Graphic: Do not touch the electrical contacts or ink nozzles
  7. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot. Make sure that the icon on the cartridge matches the icon on the slot.

    Figure 115: Insert the cartridge

    Graphic: Insert the cartridge
    • Insert the tri-color cartridge into the slot on the left

    • Insert the black or photo cartridge into the slot on the right

  8. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 116: Close the cartridge latch

    Graphic: Close the cartridge latch
  9. Close the cover on the product.

    Figure 117: Close the cover

    Graphic: Close the cover

Issue: The Power light and the Resume light blink

In this error condition, the following light pattern displays on the control panel:

  • Power light: Blinking

  • Resume light: Blinking

  • Network light: Off or on, depending on network connection

  • Print Cartridge status lights: Off

Figure 118: The Power light and the Resume light blink

Illustration: The Power light and the Resume light blink
  • Cause

    A carriage jam has occurred.

Solutions

IMPORTANT: You must follow these solutions in the order presented to resolve the issue.

Solution one: Turn the printer off and then on again

Follow these steps to turn the product off and on again.

Step one: Turn the printer off and on again
  1. Press the Power button () to turn off the product. If the product does not turn off, proceed to the next solution.

  2. Wait 60 seconds.

  3. Press the Power button () to turn the product on.

    NOTE: The product might go through a warm-up period which might last up to two minutes. The product lights might flash and the carriage might move. Wait until the warm-up period completes before you continue.
Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution two: Clear any jammed paper

Jammed paper can cause the carriage to stall. Follow these steps to clear any jammed paper.

Step one: Remove any loose paper from the tray

Remove any loose sheets of paper from the input tray and the output tray.

CAUTION: Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism.
Step two: Clear a paper jam from the rear of the printer

Choose from the following three methods to check for and clear any jammed paper from the rear of the product.

Method one: Clear the jam through the rear access door
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the rear of the product.

  3. Remove the rear access door. Press the two latch handles on the rear access door toward each other, and then pull the door out to remove it.

    Figure 119: Remove the rear access door

    Graphic: Remove the rear access door
  4. Gently pull out any jammed paper from the rear of the product. If printing labels, make sure that a label did not detach from the label sheet while passing through the product.

    NOTE: If the paper tears while removing it from the rollers, check the rollers and wheels for torn pieces of paper that might remain inside the product. If any torn pieces of paper remain inside the product, more paper jams are likely to occur.
  5. Reattach the rear access door to the rear of the product and make sure that it snaps into place.

    Figure 120: Reattach the rear access door

    Graphic: Reattach rear access door
Method two: Clear the jam from the two-sided printing accessory (duplexer)
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the rear of the product.

  3. Remove the duplexer. Press and hold the buttons on the sides of the duplexer, and then pull the duplexer out to remove it.

    Figure 121: Remove the duplexer

    Graphic: Remove the duplexer
  4. Gently pull out any jammed paper from the rear of the product.

  5. Open the door on the duplexer.

    Figure 122: Open the door on the duplexer

    Graphic: Open the door on the duplexer
  6. Gently pull out any paper from inside the duplexer, and then close the door on the duplexer. Make sure that the door snaps closed.

  7. Reattach the duplexer to the rear of the product and make sure that it snaps into place.

Method three: Clear the jam from the two-sided printing accessory (duplexer) with the small paper tray attached
  1. Press the Power button () to turn off the product.

  2. Disconnect the power cord from the rear of the product.

  3. Remove the duplexer with the small paper tray attached. Press and hold the buttons on the sides of the duplexer, and then pull the duplexer out to remove it.

    Figure 123: Remove the duplexer with the small paper tray attached

    Graphic: Remove the duplexer with the small paper tray attached
  4. Gently pull out any jammed paper from the rear of the product.

  5. On the duplexer, lift the lever on the back of the small paper tray to unhook the tray.

    Figure 124: Unhook the small paper tray

    Graphic: Unhook the small paper tray
  6. Tilt the small paper tray forward, and then open the door on the duplexer.

    Illustration of tilting the paper tray and opening the door on the duplexer
    1 - Tilt the small paper tray forward
    2 - Open the door on the duplexer
  7. Gently pull out any paper from inside the duplexer, and then close the door on the duplexer. Make sure that the door snaps closed.

  8. Close the door on the duplexer, and then secure the lever on the small paper tray to hold the duplexer door in place.

  9. Reattach the duplexer with the small paper tray to the rear of the product, and make sure that it snaps into place.

Step three: Clear the jam from the front of the product

Follow these steps to clear the jam from the front of the product.

  1. Make sure that the power cord is disconnected from the back of the product. If the power cord is not disconnected, disconnect it now.

  2. Open the product cover.

    Figure 125: Open the cover

    Graphic: Open the cover
  3. Gently pull out any jammed paper from inside the product.

    CAUTION: Remove the jammed paper carefully. Removing jammed paper incorrectly can damage the printing mechanism.
  4. Make sure that there are no torn pieces of paper left inside the product.

  5. Close the cover on the product.

    Figure 126: Close the cover

    Graphic: Close the cover
  6. Reconnect the power cord to the rear of the product.

  7. Press the Power button () to turn on the product.

Step four: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution three: Make sure that the carriage moves freely

Follow these steps to make sure that the carriage can move freely in the product.

Step one: Check the carriage path
  1. If the product is not turned on, press the Power button () to turn it on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 127: Open the cover

    Graphic: Open the cover
  3. With the product turned on, disconnect the power cord from the rear of the product.

    WARNING: You must unplug the power cord to move the carriage by hand to avoid the risk of electrical shock.
  4. Check for any paper or objects that might be restricting the carriage, and then remove any paper or objects that you find.

  5. Reach inside the product, and then manually move the carriage.

    • If the carriage is stuck on the right side, move the carriage to the left side of the product.

    • If the carriage is stuck on the left side, move the carriage to the right side of the product.

    • If the carriage is stuck in the middle, move the carriage to the right.

  6. Make sure that the carriage can move freely across the width of the product by gently pushing the carriage to the left, and then to the right.

  7. Close the cover on the product.

    Figure 128: Close the cover

    Graphic: Close the cover
  8. Reconnect the power cord to the back of the product.

  9. Press the Power button () to turn on the product.

Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution four: Remove and reinsert the cartridges

Improper placement or installation of the cartridges can cause the product to indicate a carriage jam error. Follow these steps to remove and then reinsert the cartridges.

Step one: Remove the cartridges
  1. Press the Power button () to turn on the product, if it is not already on.

  2. Open the product cover. The carriage moves to the right side of the product. Wait until the product is idle and silent before continuing.

    Figure 129: Open the cover

    Graphic: Open the cover
  3. Press down lightly on top of the cartridge latch, and then pull up the latch to unhook it.

    Figure 130: Unhook the cartridge latch

    Graphic: Unhook the cartridge latch
  4. Slide the cartridge out of its slot.

    Figure 131: Remove the cartridge

    Graphic: Remove the cartridge
  5. Repeat these steps to remove the other cartridge.

Step two: Reinsert the cartridges
  1. Hold the cartridge by its sides with the nozzles toward the product, and then insert the cartridge into its slot. Make sure that the icon on the cartridge matches the icon on the slot.

    Figure 132: Insert the cartridge

    Graphic: Insert the cartridge
    • Insert the tri-color cartridge into the slot on the left

    • Insert the black or photo cartridge into the slot on the right

  2. Press down on the cartridge latch to close it. Make sure it snaps into place.

    Figure 133: Close the cartridge latch

    Graphic: Close the cartridge latch
  3. Close the cover on the product.

    Figure 134: Close the cover

    Graphic: Close the cover
Step three: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution five: Plug the printer directly into a wall outlet

Plug the product directly into a wall outlet to make sure that the power source functions correctly.

Step one: Plug the printer directly into a wall outlet
  1. Disconnect the power cord from the rear of the product.

  2. Disconnect the power cord from any power strip or surge suppressor, and then plug it directly into the wall outlet.

  3. Reconnect the power cord to the rear of the product.

  4. Press the Power button () to turn on the product.

NOTE: If the product prints when plugged directly into a wall outlet, the power strip or surge suppressor might not be allowing enough voltage to reach the product.
Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution six: Perform a power reset

Follow these steps to reset the product.

Step one: Reset the printer

  1. Press the Power button () to turn on the product.

  2. With the product turned on, disconnect the power cord from the rear of the product.

  3. Unplug the power cord from the wall outlet.

  4. Wait at least 15 seconds.

  5. Plug the power cord back into the wall outlet.

  6. Reconnect the power cord to the rear of the product.

  7. If the product does not turn on by itself, press the Power button () to turn it on.

Step two: Print a self-test report

Print a self-test report to make sure that the hardware functions correctly.

How to print a self-test report
  1. Load plain white paper in the input tray.

  2. Press and hold the Print Cancel button (). The self-test report prints.

  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.

  • If the issue persists, continue with the next solution.

  • If the test page does not print, continue with the next solution.

Solution seven: Service the printer

If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.

Issue: The Power light, Resume light, and Print Cartridge status lights blink in unison

In this error condition, the following light pattern displays on the control panel:

  • Power light: Blinking

  • Resume light: Blinking

  • Network light: Off or on, depending on network connection

  • Print Cartridge status lights: Blinking

Figure 135: The Power light, Resume light, and Print Cartridge status lights blink in unison

Graphic: The Power light, Resume light, and Print Cartridge status lights blink in unison
  • Cause

    The product needs to be reset.

Service the printer

Contacting HP for service in Asia Pacific.

If you have completed all the preceding steps and are still experiencing a problem, you may need further assistance from HP to remedy your concern.

Please contact HP using one of the options found at Contact HP to obtain service.

Contacting HP for service in all countries/regions except Asia Pacific.

If you have completed all the preceding steps and are still experiencing a problem, service the product.

Determine if your product is in warranty or out of warranty. If you need help determining your product’s warranty status, go to HP’s Warranty Check Tool .

  • If your product is in warranty, Contact HP to obtain service.

  • If your product is out of warranty, Contact HP to find an authorized service provider or to setup service (fees might apply).

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