What can this error possibly be indicating?
HP OfficeJet d145
No Black Supply: Insert ink cartridge NOW to prevent damaging the product.

I've inserted and reinserted the HP black ink printer cartridge #14 c5011a
but I still all of a sudden get this error from my HP printer saying "No
Black Supply".

I've cleaned with a pencil eraser the gold plated contacts on the HP14
c5011a printer ink cartridge and I've cleaned the four springey prongs on
the HP OfficeJet d145 printer that connect to the HP printer ink cartridge
to no avail.

I've tugged and pulled and tapped and jiggled the HP 14 ink cartridge; but
still the HP OfficeJet d145 printer thinks the black printer ink is empty.

The problem is this show-stopping error wholly disables the HP OfficeJet
d145 printer. NOTHING can be pressed - not a single button - no diagnostics
can be performed - no printer head cleaning - nothing. Absolutely no
buttons work except the on/off button which has been cycled many many times
between yesterday and today.

This HP printer is so very frustrating.

Do any printer experts have a debug procedure for testing why the HP OJ
d145 thinks the HP 14 black printer ink is out when in fact it is not?