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Replacing the Printhead for HP Photosmart Premium e-All-in-One Printer Series (C310)

This document is for the HP Photosmart Premium e-All-in-One (C310) Printers.
A printhead assembly consists of cartridges fitted into a printhead. If the printhead assembly sustains damage or is incompatible with the printer, you might need to replace it. Replacement printhead assemblies are only available from HP Support or authorized service providers.
These steps apply to all countries/regions except the United States.
If HP replaces your printhead assembly under warranty, you receive a new printhead assembly, cleaning materials, and a full set of new cartridges with the replacement printhead.
If your printhead assembly is no longer under warranty, you can purchase a new one online.
  1. Go to the HP How to Buy website, and then click your country-language.
  2. A Buy HP page displays. Look for the HP Parts store on this page. The location of the HP Parts store varies depending on your region. Click HP Parts store.
  3. Under Find your part(s), type CN642A in the Search by part number text box. Follow the on-screen instructions to order the printhead assembly.
Replace the printhead assembly
Follow these steps to replace the printhead assembly.
  note:
Wait until a new printhead assembly is available before removing the cartridges. Do not leave the cartridges outside the printer longer than 30 minutes. Leaving the printhead and cartridges outside the printer for long periods can damage the printer and the supplies.
Step one: Remove the old cartridges
  1. Press the Power button to turn on the printer, if it is not already on.
  2. Open the cartridge door.
    The carriage moves to the center of the printer. Wait until the carriage is idle and silent before you continue with these steps.
    Figure : Open the cartridge door
    Image: Open the cartridge door
  3. To release an old cartridge, press in the tab on the front of the cartridge, and then pull upwards to remove it from the slot.
    Figure : Remove the cartridges
    Image: Remove the cartridges
  4. Repeat the previous step to remove each cartridge.
Step two: Remove the old printhead
  1. Lift the latch handle on the carriage until it stops.
    Figure : Life the latch handle
    Image: Life the latch handle
  2. Lift the printhead to remove it from the carriage.
    Figure : Remove the old printhead
    Image: Remove the old printhead
Step three: Clean the electrical contacts inside the printer
For successful printhead assembly replacement, it is important to get the electrical contacts inside the printer as clean as possible. The replacement printhead assembly comes with pre-moistened wipes.
Figure : Pre-moistened wipes
Image: Pre-moistened wipes
Use these wipes to clean the electrical contacts inside the printer. Wipe from the top to the bottom of the electrical contacts, in one direction only. As the wipes become dirty, discard the used wipes and open new ones.
  caution:
Do not wipe up and down or side to side, as doing so can damage the printer.
Figure : Clean the electrical contacts inside the printer
Image: Clean the electrical contacts inside the printer
Step four: Install the new printhead
  1. Remove the new printhead from the package.
    Figure : Remove the new printhead
    Image: Remove the new printhead from the package
      caution:
    Do not touch the copper-colored electrical contacts. Do not scratch the electrical contacts on the printer or any other surface.
    Figure : Do not touch the electrical contacts
    Do not touch the electrical contacts
  2. Hold the printhead upright with the colored shape icons on the top.
  3. Lower the printhead into the carriage.
    Figure : Install the new printhead
    Insert the new printhead
  4. Carefully lower the latch handle.
  1. Raise and hold the output tray in the open position.
  2. Slide the paper width guide to its outermost position.
    Figure : Slide the paper guide outward
    Graphic: Move the paper width guide outward
  3. Insert the stack of paper into the input tray with the short edge forward and the print side down.
    Figure : Load plain paper
    Graphic: Load plain paper
  4. Adjust the paper width guide so that it rests against the stack of paper.
    Figure : Adjust the paper width guide to the stack of paper
    Graphic: Adjust the paper width guide to rest against the stack of paper
  5. Lower the output tray, and then pull the tray extender towards you, as far as it will go. Flip up the paper catch at the end of the tray extender.
    Figure : Lower the output tray
    Graphic: Lower the output tray
Step five: Install the new cartridges
  note:
Do not reuse the old cartridges. Old cartridges might damage the new printhead.
  1. Press the Power button () to turn on the product, if it is not already turned on. Wait until the product is idle and silent before continuing.
  2. Open the cartridge door. The carriage moves to the center of the product. Wait until the carriage is idle and silent before continuing.
    Figure : Open the cartridge door
    Graphic: Open the cartridge door
  3. Remove the new cartridge from the package by pulling the orange tab straight back.
    Figure : Remove the plastic wrap
    Graphic: Remove the plastic wrap
  4. Twist the orange cap counter clockwise to snap it off the cartridge.
    Figure : Remove the orange cap
    Graphic: Remove the orange cap
  5. With the cartridge contacts facing the printhead, slide each cartridge into its slot as indicated by the colored shape icons on the cartridge and on the printhead. Press down on each cartridge until it clicks into place.
    Figure : Insert the new cartridge
    Graphic: Insert the new cartridge
      caution:
    Do not lift the latch handle on the carriage to install the cartridges. Doing so might result in incorrectly seated cartridges and printing issues. The latch must remain down in order to correctly install the cartridges.
  6. Repeat these steps to install the other cartridges.
  7. Close the cartridge door. The carriage returns to the right side of the product.
    Figure : Close the cartridge door
    Graphic: Close the cartridge door
Step seven: Align the printer
After loading plain white paper, touch OK on the printer control panel. The printer automatically prints an alignment page to align the cartridges.
Figure : Example alignment page
Image: Example alignment page
Step eight: Return failed parts to HP
If the new printhead assembly came with a post-paid mailing label and instructions to return the failed parts to HP, please do so. HP wants to analyze the parts in order to improve our printers in the future.
If a post-paid return mailing label is not included with the new printhead assembly, you are done, and there is no need to continue troubleshooting.
  1. Put the old printhead into the plastic package that the new printhead arrived in.
    Figure : Put the old printhead into the package
    Put the old printhead into the package
  2. Peel off the lid sticker labeled B and use it to seal the printhead package.
    Figure : Peel off the lid sticker
    Peel off the lid sticker
    Figure : Seal the package with the lid sticker
    Seal the package with the lid sticker
  3. Use the orange caps from the new cartridges to cap the old cartridges.
    Figure : Cap the old cartridges
    Use the orange caps from the new  cartridges to cap the old cartridges
  4. Put the old parts and the form that came with the new parts into the box that the new parts came in. If possible, also include a sample printout that shows the issue with the old printhead.
    Figure : Put the old parts, form, and sample printout into the box
    Put the old parts, form, and sample printout into the box
  5. Close the box, apply the post-paid mailing label, and then put the box in the mail.
    Figure : Send the box back to HP
    Send the box back to HP

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