How to Replace an Empty Ink Cartridge in the HP Deskjet 6940 series Printer – an Illustrated Tutorial in 10 Steps


Make sure you purchase the right ink cartridges for your specific printer and printer region or have your old ones refilled. Cartridges are not compatible between different brands, and often not within the same brand. Unlike other inkjet manufacturers, HP often designs its inkjet hardware to use country-specific consumables. When you unbox a new HP inkjet printer and set it up, you install a set of ink tanks that ship with the printer. As you turn on the device and get ready to use it, an initialization sequence localizes it to the country associated with the ink cartridges you installed.

HP recommends that you use original HP ink cartridges. XL (Extra Large) cartridges cost more but do provide better value in the long run. They will be able to print at least double the pages of a regular cartridge. However, (original) HP XL cartridges for the HP Deskjet 6940 series printer are NOT available.

Ink level warnings and indicators provide estimates for planning purposes only. When you receive a low-ink warning message, consider having a replacement ink cartridge available to avoid possible printing delays. You do not have to replace the ink cartridges until the print quality is unacceptable. Use the ink-backup mode to operate the HP Deskjet 6940 with only one ink cartridge. The ink-backup mode is initiated when an ink cartridge is removed from the print cartridge cradle. Printing in ink-backup mode slows the printer and affects the quality of printouts. HP does not recommend using the photo print cartridge or the gray photo print cartridge for ink-backup mode.

Print cartridge combinations
Four print cartridges can be used with the printer. For printing most documents, use the tri-color print cartridge and the black print cartridge. When printing quality color photos, use the photo print cartridge along with the tri-color print cartridge. For printing high-quality black-and-white photographs, use the gray photo print cartridge in conjunction with the tri-color print cartridge. Always install the tri-color print cartridge in the left side of the print cartridge cradle. Install the black, photo print cartridge, or the gray photo print cartridge in the right side of the print cartridge cradle.
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1 Black print cartridge
2 Tri-color print cartridge
3 Photo print cartridge
4 Gray photo print cartridge

Which ink cartridges do I need for my HP Deskjet 6940 series Printer?

For your US HP Deskjet 6940 series Printer you need HP 96 Black AND HP 97 Tri-color cartridges.
For printing photos use HP 99 Photo Original cartridges.
For printing high-quality black-and-white photographs use HP 100 Gray Photo cartridges.
For your European or UK HP Deskjet 6940 series Printer you need HP 339 Black OR HP 337 Black AND HP 343 Tri-color OR HP 344 Tri-colorcartridges
For printing photos use HP 348 Photo cartridges.
For printing high-quality black-and-white photographs use HP 100 Gray Photo cartridges.

Replace the cartridges

1. Press the power button to turn on the printer, if it is not already on.
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2. Load plain Letter or A4 white paper in the input tray.

Remove the old cartridge
3. Open the printer cover. Wait until the print cartridge cradle moves to the right side of the printer and is idle and silent before you continue.
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4. Lift the print cartridge latch to the open position, then slide the print cartridge out of the print cartridge cradle.
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Insert a new cartridge
5. Remove the new cartridge from its package. Be careful to touch only the black plastic on the cartridge.
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6. Remove the plastic tape using the pull tab.
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Do NOT:
– Remove the copper electrical strip.
– Touch the copper-colored contacts or the ink nozzles.
– Replace the protective tape on the contacts.
do not touch contacts

7. Hold the print cartridge so that the copper strips are on the bottom and facing toward the printer, and then slide the print cartridge into the cradle as shown. Always install the tri-color print cartridge in the left side of the print cartridge cradle. Install the black, photo print cartridge, or the gray photo print cartridge in the right side of the print cartridge cradle.
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8. Push down on the print cartridge latch until it snaps closed.
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9. Close the printer cover. The printer automatically prints a calibration page.

Align the cartridges
10. Wait about 30 seconds for the alignment page to automatically print. If the alignment page fails to automatically print, you can manually print an alignment page using the HP Printer software. You can also align the print cartridges at other times to ensure optimal print quality:
– Open the printer Toolbox.
– Click Align the Print Cartridges.
– Click Align, and then follow the onscreen instructions.

How to Replace an Empty Ink Cartridge in the HP DeskJet 2130 All-in-One series Printer – an Illustrated Tutorial in 13 Steps


Make sure you purchase the right ink cartridges for your specific printer and printer region or have your old ones refilled. Cartridges are not compatible between different brands, and often not within the same brand. Unlike other inkjet manufacturers, HP often designs its inkjet hardware to use country-specific consumables. When you unbox a new HP inkjet printer and set it up, you install a set of ink tanks that ship with the printer. As you turn on the device and get ready to use it, an initialization sequence localizes it to the country associated with the ink cartridges you installed.

HP recommends that you use original HP ink cartridges. XL (Extra Large) cartridges cost more but do provide better value in the long run. They will be able to print at least double the pages of a regular cartridge. Our advice is that if you print often, go with XL. However, ink can dry up. So if you are not a frequent printer, go with the regular cartridges.

Ink level warnings and indicators provide estimates for planning purposes only. When you receive a low-ink warning message, consider having a replacement ink cartridge available to avoid possible printing delays. You do not have to replace the ink cartridges until the print quality is unacceptable. Use the single-cartridge mode to operate the HP DeskJet 2130 with only one ink cartridge. The single-cartridge mode is initiated when an ink cartridge is removed from the ink cartridge carriage.

Which ink cartridges do I need for my HP DeskJet 2130 All-in-One series Printer?

For your US HP DeskJet 2130 All-in-One series Printer you need
HP 63 or HP 63XL cartridges.
For your European or UK HP DeskJet 2130 All-in-One series Printer you need HP 302 or HP 302XL cartridges.

Replace the cartridges

1. Press the power button to turn on the printer, if it is not already on.
Replace one or both ink cartridges indicated by the blinking Ink Alert light on the printer control panel.
1) Ink Alert light (tri-color)
2) Ink Alert light (black)
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2. Load plain white paper in the input tray.
3. Lower the output tray, reach inside the printer, grasp the handle, and then lower the ink cartridge access door to open it. The carriage moves to the center of the printer. Wait until the printer is idle and silent before you continue.
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Remove the old cartridge
4. Lightly press down on one of the old cartridges to release it, and then pull the cartridge toward you out of its slot. Set it aside for recycling. Remove the cartridge from the slot on the left to replace the tri-color cartridge. Remove the cartridge from the slot on the right to replace the black cartridge.
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Insert a new cartridge
5. Remove the new cartridge from its package. Be careful to touch only the black plastic on the cartridge.
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6. Remove the plastic tape using the pull tab.
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Do NOT:
– Remove the copper electrical strip.
– Touch the copper-colored contacts or the ink nozzles.
– Replace the protective tape on the contacts.
do not touch contacts

7. Hold the ink cartridge by its sides with the nozzles toward the printer, then insert the ink cartridge into its correct slot. Slide the new ink cartridge at a slight upward angle into the empty slot, and then gently push the ink cartridge until it snaps into place. Repeat these steps to install the other ink cartridge, if necessary. Insert the tri-color ink cartridge into the left slot. Insert the black ink cartridge into the right slot.
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8. Close the ink cartridge access door. The printer automatically prints an alignment page. The printer only prints an alignment page automatically when new ink cartridges are installed. To achieve the best print quality, it is necessary to align the ink cartridges.
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Align the cartridges
9. Wait about 30 seconds for the alignment page to automatically print. Scanning the alignment page allows the printer to align the ink cartridges and provide the best print quality. If the alignment page fails to automatically print, you can manually print an alignment page using the HP Printer software.
10. Lift the scanner lid.
11. Place the alignment page with the print side down on the right-front corner of the scanner glass. See the engraved guide next to the scanner glass for help loading the alignment page.
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12. Close the scanner lid.
13. Press the Start Copy Black button or the Start Copy Color button on the printer control panel. The printer aligns the ink cartridges.

How to Replace an Empty Ink Cartridge in the HP Officejet Pro 6835 All-in-One Inkjet Printer – an Illustrated Tutorial in 8 Steps


Make sure you purchase the right ink cartridges for your specific printer and printer region or have your old ones refilled. Cartridges are not compatible between different brands, and often not within the same brand. Unlike other inkjet manufacturers, HP often designs its inkjet hardware to use country-specific consumables. When you unbox a new HP inkjet printer and set it up, you install a set of ink tanks that ship with the printer. As you turn on the device and get ready to use it, an initialization sequence localizes it to the country associated with the ink cartridges you installed.

HP recommends that you use Original HP ink cartridges. XL (Extra Large) cartridges cost more but do provide better value in the long run. They will be able to print at least double the pages of a regular cartridge. Our advice is that if you print often, go with XL. However, ink can dry up. So if you are not a frequent printer, go with the regular cartridges.

Ink level warnings and indicators provide estimates for planning purposes only. When you receive a low-ink warning message, consider having a replacement cartridge available to avoid possible printing delays. You do not have to replace the cartridges until the print quality is unacceptable.

HP recommends that you replace any missing cartridges as soon as possible to avoid print quality issues and possible extra ink usage or damage to the ink system. Never turn off the printer when ink cartridges are missing.

Which ink cartridges do I need for my HP Officejet Pro 6835 All-in-One Inkjet Printer?

For your US, European and UK HP Officejet Pro 6835 All-in-One Inkjet Printer you need HP 934 Black and HP 935 Cyan/Magenta/Yellow cartridges. There are also Combo Packs (4 cartridges in one pack) available, like the HP 934XL Black and 935 Tri-color (Cyan, Magenta, Yellow) Combo Pack.

Replace the cartridges

1. Press the Power button to turn on the printer, if it is not already on.
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Remove the old cartridge
2. Slip your fingers into the slot on the left side of the printer, and then gently lift to open the cartridge access door. The carriage moves to the left side of the printer. Wait several seconds until the carriage is idle and silent before you proceed.
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3. Press the tab inward on the front of the old cartridge to release it, and then pull up on the cartridge to remove it from the slot.
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Insert a new cartridge
4. Remove the new ink cartridge from its packaging.
5. Pull the orange tab on the wrapper straight back. Make sure that you remove the orange pull-tab completely otherwise, ink might leak from the cartridge. When you remove the plastic wrap, the paper label on the top of the cartridge tears slightly, which is necessary to properly vent the cartridge.
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5. Hold the cartridge by its sides, and then twist the protective orange cap counter-clockwise to snap it off the cartridge. Do not touch the copper-colored contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.
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6. Turn the cartridge so that the cartridge contacts face downward, and then match the label color with the color dot on the carriage. Slide the ink cartridge into the empty slot until it clicks securely into the slot and it is firmly seated. Make sure that you insert the ink cartridge into the slot that has the same colored letter as the color you are installing.
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If the cartridge does not firmly seat, remove the cartridge from the printhead. Gently bend the tab away from the cartridge, and then reinsert the cartridge into the printhead.
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7. Repeat steps 3 through 5 for each ink cartridge you are replacing.

8. Close the ink cartridge access door.
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Align the printhead only if necessary.
The printer automatically aligns the printhead during the initial setup. However, you might want to use this feature for print quality issues in printouts where straight lines look wavy or jagged. Load Letter or A4 unused plain white paper into the input tray first. You can align the printhead from the printer’s control panel, from the HP printer software or embedded web server (EWS).