How to check ink levels on HP officejet 6500A?

The error doesn't exist.

https://www.google.com/search?q=HP+Officejet+6500A+Plus+error+0.61991beb

This one does have 'BEB' on the end of it.

How to Fix HP Printer Error 0X61011BEB

https://www.printerfixes.com > Printer Error Codes
The HP Printer Error 0X61011BEB is also caused due to the miscommunication between the ink cartridges and printer. The other reasons behind this HP Printer ...


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Try reset the printer after you have cleaned the printheads. http://www.youtube.com/watch?v=31TbWMrTaFk

Simple, turn on your HP OJ 6500A printer and open top cover...carriage should move to cartridge access position. If not, then the service station may be in the way or the PRINTHEAD assembly is not properly locked down causing an error condition. Power supply could also cause this kind of failure.

For information on North American ink refill services (i.e. HP920 and HP920XL ink cartridges) at a major retailer near you (should you wish to save ~50% on ink costs), general printing problem resolutions or advanced HP Officejet 6500, 6500A, 6500A Plus, 7000 and 7500A printer diagnosis procedures (advanced cartridge diagnostic tests/cartridge error bypass & printer reset methods, etc.), please visit Inkjet411: http://www.inkjet411.com

INK PROBLEM
Inkjet printers need to be used frequently to prevent ink drying out and blocking the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages, then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer than replace the print head.

On HP 6500 printers, remove screen and try heating the connection elemants with hair dryer or something similar. Nothing to hot. The led bars should restore. Here's a link on how to remove HP 6500. Do same for 6500A model, but screen is a bit different, so check out the other video for HP 6500A and 6500A plus printers:
HP 6500:

hi
Generally HP Printer Error Code 0xc19a0022 Caused by when Ink system of the printer gets failed out to perform, The trouble of the low ink in the ink cartridges, The ink getting overfull in the cartridge, This trouble can also occur because of the ink getting in contact with the chip present in the cartridge and missing out of cartridge chip.
Steps to Fix HP Printer Error 0xc19a0022 :-
Step 1. Try to update firmware.
Step 2. Remove All Cables
Step 3. Also tried to re-install the driver.
And If you Installing New cartridge fixed the problem, You need to troubleshooting Process.
1. Resetting the Printer.
2. Go to HP Printer Control panel to check Estimate ink level.
3. Cleaning the Ink Cartridge vents and all contacts.
4. Cleaning the Print head as well as Replacing the Print head.
If you not able to Fix visit our website click here HP Printer Error Code 0xc19a0022.

Hello,

Please try the below steps..
1> While the printer is ON, unplug the power cord from back of the printer.
2> Wait for 30 seconds.
3> Plug in the power cord directly into a Wall Outlet ( by pass the surge / power strip),and then to the printer. The printer should automatically power on. If not press the ON button to do so.
4> Now try making a Copy. It should work. Else check the level of ink in the cartridges.

what do you mean by resetting the ink levels? to know how to get the estimated ink levels of your printer?

In most cases the printer driver software can have errors while being in use or is shut down. So to reset remove your printer from the PC and uninstall the printer software. Now reinstall the printer software and then connect the Printer to be detected as a new hardware as it will be installed. Now check the printer properties to see the ink levels.
Activate head cleaning before a test is taken . Sometimes it is possible that the head is not reacting to the need of the PC command or can be an issue with ink drying or poor ink cartridge contacts.

This video shows how to change ink cartridge on HP 6500 and 6500A