Zhongkai Imaging Products of Zhuhai, China, which markets its products under the Toner-Tank brand, announced that HP Inc. released new printer firmware for several LaserJet families on December 5. That firmware upgrade is causing some Toner-Tank toner cartridges to be unrecognized by LaserJet printers with the updated firmware. Toner-Tank’s December 8 announcement states, “According to
