This document is for HP Officejet 6812, 6815, 6820, Officejet Pro 6830, and 6835 e-All-in-One printers.
note:Rough handling at the store or during installation can cause print quality problems with newly installed ink cartridges. If you see print problems with newly installed ink cartridges, wait for a few hours for the automatic servicing routine to complete, and then try to print again.
note:If you see an Incompatible, Incompatible Cartridge or Defective Cartridge message for the Cyan cartridge and have an HP Officejet 6810, 6820, 6950, 6960, 8010, 8010e, or HP OfficeJet Pro 6230, 6830, 6960, 6970, 8020, 8020e, 8030, or 8030e series printer, see HP OfficeJet Printers - 'Incompatible Cartridge' message for more help.
caution:Never turn off the printer when ink cartridges are not installed. To avoid issues that require cleaning the printhead or that can damage the ink system, always replace ink cartridges as soon as possible, and always turn off the printer using the Power button.
note:If the printhead is badly clogged, it might require another cleaning cycle. If so, wait 30 minutes before you perform all three levels of cleaning again.
Black ink cartridge
|
Cyan ink cartridge
|
Magenta ink cartridge
|
Yellow ink cartridge
|
HP 934 Black
HP 934XL Black
|
HP 935 Cyan
HP 935 XL Cyan
|
HP 935 Magenta
HP 935 XL Magenta
|
HP 935 Yellow
HP 935 XL Yellow
|
note:Ink level warnings and indicators provide estimates for planning purposes only. When an indicator shows low ink levels, consider having a replacement ink cartridge available to avoid possible printing delays. You do not need to replace ink cartridges until print quality becomes unacceptable.
caution:Make sure that you remove the orange pull-tab and plastic wrap completely before you twist the orange cap in the next step. 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.
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.
caution:Be careful not to bend the tab out more than 1.27 cm (0.5 in). Moving the tab too far might damage the cartridge or cause the tab to break off.
caution:Never turn off the printer when ink cartridges are not installed. To avoid issues that require cleaning the printhead or that can damage the ink system, always replace ink cartridges as soon as possible, and always turn off the printer using the Power button.
note:If the printhead is badly clogged, it might require another cleaning cycle. If so, wait 30 minutes before you perform all three levels of cleaning again.
caution:Make sure that you remove the orange pull-tab and plastic wrap completely before you twist the orange cap in the next step. 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.
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.
caution:Be careful not to bend the tab out more than 1.27 cm (0.5 in). Moving the tab too far might damage the cartridge or cause the tab to break off.
note:Keep a print sample that shows the problem. If the ink cartridges, printhead, or printer is replaced under warranty, the support agent will request the print sample. If the printer is returned to HP, the print sample must be returned with the printer. Place the sample in the output tray when you package your printer for shipping.