Maintaining the Printheads HP Business Inkjet 2800 Printer

If the HP Business Inkjet 2800 Printer printed characters are incomplete, or dots or lines are missing from printouts, this may be caused by clogged ink nozzles and you might need to clean the printheads. To find out which printheads work with your printer, see below.

HP Business Inkjet 2800 Printer Ink supplies compatibility:

When the quality of printouts deteriorates, complete the following:

• Check the health of the printheads.
• Initiate the automatic printhead cleaning process.
• Manually clean the printhead contacts.
• Replace the printheads, if the problems persist after cleaning.

CAUTION HP is not responsible for damage to the printer that results from modifying the printheads.

To check printhead health

Note If any printhead status is bad, clean or replace the printhead.

• From the configuration page
  Check the printhead health section of the configuration page.
• From the embedded Web server
  1 Open the embedded Web server.
  2 Click the Information tab.
  3 Click Ink Supplies in the left pane.

To align the printheads

Whenever you replace a printhead, the printer automatically aligns the printheads to ensure the best print quality. However, if the appearance of your printed pages indicates that the printheads are misaligned, you can align them manually.

• From the control panel
  1. Press ✔ (Select button) on the control panel.
  2. Press ▲ (Up Arrow button) until MAINTENANCE is highlighted, and then press ✔ (Select button).
  3. Ensure PRINT QUALITY is highlighted, and then press ✔ (Select button).
  4. Ensure ALIGN PRINTHEADS is highlighted, and then press ✔ (Select button).
• From the Embedded Web server
  1. Open the embedded Web server.
  2. Click the Settings tab.
  3. Click Diagnostic in the left pane.
  4. In the Printheads section, select the option to align printheads from the drop-down list.

To clean printheads automatically

Note Clean the printheads only when necessary; cleaning uses ink and shortens the life of the printheads. There are three levels of cleaning available. After one level of cleaning, perform the next level of cleaning only if the results are not satisfactory.

• From the control panel
  1. Press ✔ (Select button) on the control panel.
  2. Press ▲ (Up Arrow button) until MAINTENANCE is highlighted, and then press ✔ (Select button).
  3. Ensure PRINT QUALITY is highlighted, and then press ✔ (Select button).
  4. Press ▲ (Up Arrow button) until the option to clean printheads is highlighted, and then press ✔ (Select button).
• From the Embedded Web server
  1. Open the embedded Web server.
  2. Click the Settings tab.
  3. To clean the printheads, click Diagnostic in the left pane. Then, select the appropriate cleaning level from the drop-down list in the Printheads section.

To replace the printheads HP Business Inkjet 2800 Printer

Note Only replace printheads after you have attempted to clean the printheads.
1 Ensure the printer is plugged in and turned on.
2 Lift the ink cartridge cover, and then lift the printhead cover.
3 Lift to open the printhead latch.

4 Lift the handle of a printhead and use it to pull the printhead out of its slot.

5 Remove the new printhead from its package, and then remove the protective tape.

6 Insert the printhead into its color-coded slot. Press down firmly on the printhead to ensure proper contact.

7 Close the printhead latch. Press down to ensure it is in the lock position.

8 Close the covers.
9 Wait while the printer initializes the printheads and prints two alignment pages.

To clean the printhead contacts manually

To find out which printheads are compatible with your printer.

CAUTION Clean the printhead contacts only after you have attempted to clean the printheads automatically.Printhead contacts contain sensitive electronic components that can be damaged easily.

1 Ensure the printer is plugged in and turned on.
2 Lift the ink cartridge cover and printhead cover.

3 Wait two or three seconds, and then unplug the printer power cord.
4 Lift to open the printhead latch.

5 Lift the handle of a printhead and use it to pull the printhead out of its slot.

6 Carefully remove any ink from the contact pads on the printhead using a dry cotton swab or a soft, dry, lint-free cloth that will not come apart or leave fibers behind.

CAUTION Only wipe the contact pads. Wiping the nozzles (located on the underside of the printhead) can cause severe damage to the printhead.

7 Insert the printhead into its color-coded slot. Press down firmly on the printhead to ensure proper contact.
CAUTION Avoid using drinking water or alcohol, which could damage the printheads.
8. After cleaning, place the printhead on a sheet of paper or paper towel.
9. Clean the contact points in the printhead slot inside the printer with a dampened cotton swab. Before re-inserting the printheads, make sure all the electrical contacts have had at least five minutes to dry.
10. Plug in the power cord and turn on the printer. The control panel should still indicate that
a printhead is missing.
11. If you are replacing a printhead, remove the new printhead from its package, and then remove the protective tape.
12. Insert the printhead into its color-coded slot. Press down firmly on the printhead to ensure proper contact.
13. Close the printhead latch. Ensure it is in the lock position.
14. Where necessary, repeat the above steps for the remaining printheads.
15. Wait while the printer initializes the printheads and prints an alignment page. If the printer does not print an alignment page, replace the printhead you have cleaned.