Zhongkai Imaging Products of Zhuhai, China, which markets its products under the Toner-Tank brand, announced that a recent HP firmware update has resulted in third-party chips on various HP CF289-series compatible toner cartridges being unrecognized by LaserJet printers and MFPs. HP released the new firmware (20230705) on August 8. On August 9, Toner-Tank announced that “Non-HP Chip
