Ink level monitoring on officejet 6310

Here is a video from HP explaining the process. IF you followed this procedure and are getting errors, then you may have bigger issues. I am assuming you are using genuine HP ink, not remanufactured or refilled cartridges.
Replacing Cartridges for HP Officejet Pro 8600 All in One Printer Series...

most wont.. they require the original expensive replacement cartriges..

Have you checked your ink levels? There is a low ink utility with HP printers that should read the ink level of the Black or Grey cartridge.
If the levels are up, then run the maintenance and nozzle check for this printer through the Print menu.

Open the HP Photosmart Software on a Windows computer
1. Do one of the following:
– On the Windows desktop, double-click the HP Solution Center icon.
– In the system tray at the far right of the Windows taskbar, double-click the
HP Digital Imaging Monitor icon.
– On the taskbar, click Start, point to Programs or All Programs, select HP,
and then click HP Solution Center.
2. If you have more than one HP device installed, select the HP All-in-One tab.
Note On a Windows computer, the features available in the HP Solution
Center vary depending on the devices you have installed. The HP Solution
Center is customized to display icons associated with the selected device. If
the selected device is not equipped with a particular feature, then the icon for
that feature does not display in the HP Solution Center.

From here, you can scan, make copies, and perform maintenance procedures such as checking the ink levels for the print cartridges.

If it's not an original cartridge you can expect problems. I tried remanufactured or OEM type cartridges and lost an Epson and a HP printer to printing problems within a week.

Have you tried carrying out the printhead cleaning and alignment procedures since fitting it ?

if you are using a refilled catridge you would not get ink levels right.
if you want right ink level use genuine ink catridges.
you can try taking out the catridges turning off the printer and turning it back on and then reinstalling the catridges.it might not help so if possible buy hp ink catridges.

To solve the printing problem..

# Hold the cartridge upside down, with the bar-code label facing you and take a damp paper towel. # Use the towel to wipe the printhead of the cartridge on the bottom (where the ink comes out). Wipe the printhead horizontally in one direction only (left to right). # Continue doing this until it looks clean. # Then dab the cartridge on the towel to make sure the ink is flowing. # Next, look inside the printer and locate the carrier that holds ink cartridges. Caution: Make sure the cartridges are not installed at this point.
1. Look for a shiny piece of metal underneath the contacts at the back of the carrier. 2. Take a damp cotton swab (use water only!) and wipe along the bottom of the shiny metal piece. Note: You may need more than one swab.
# Reinstall the cartridges, making sure you snap them correctly into the printer.

doesnt matter most printers have a feature of their own to check ink levels.
press the setup button on the printer and scroll down(with the arrow buttons) till you get tools press ok and now scroll through until you get ink level and select it by pressing the ok button,walla you should have your ink levels in front of you.

Now about the hp solution centre/hp director icon on your desktop (if you have installed the software).
Click on settings and click on printer toolbox and now check your estimated ink levels it will show the ink levels of the printer cartridges.

slowly off and on the printer for five times without cartridge, printer saves data of cart of last 5 only so next time it reads full ink..

The 6310 takes a #95 tri-color cartridge. #901 is for Officejet 4500 and 4600 series printers.