HP  · Printhead · Black  and Yellow. HP Officejet Pro K5400, K5400dn, K5400dtn, K5400n, K5400tn, K550, K550dtn, K550dtwn, K8600, K8600dn, L7480, L7550, L7555, L7580, L7590, L7650, L7680, L7681, L7710, L7750, L7780.
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