Ink cartridges
I have recently bought a batch of ink cartridges from cartrdgeshop which were advertised as Canon, and produced by Picture Expert. However, although labelled eg "5BK black replace for C-PG15 BK" the orange unlocking key is a different shape from the ones from Canon for a Pixma iP4500.
Are they safe to use?
Some time ago I bought a cheap cartridge which was genuine, but unfortunately I cannot find a record of where I purchased it!
iMac (21.5-inch Mid 2011), Mac OS X (10.7.5), Memory 8 GB