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I have some leftover toner cartridges from an already discarded printer. I would be really interested in knowing how much ink they have left. I have been searching only for detailed specifications but to no avail.
Does anyone know the weights or can anyone point me to the right direction? Thank you, your help is much appreciated! 
Black Q6470A: 1100 g
Yellow Q7582A: 1130 g
Magenta Q7583A: 1128 g
Blue Q7581A: 1091 g
