HP Pro 4300 C9H70UT C9H70UT#ABA manual Print cartridge memory chip

Print cartridge memory chip

The print cartridge memory chip is a non-volatile memory device built into the print cartridge. It stores information about the cartridge. The DC controller PCA reads and writes memory data to the memory chip to monitor the print cartridge usage and condition. The DC controller PCA reads and writes to the memory chip at specific times. If the read-write process fails four times in a row, the DC controller PCA detects a print cartridge memory failure and a 10.00.00 SUPPLIES MEMORY ERROR error message appears on the control-panel display (see “Numerical printer messages” on page 274).

DC Controller PCA

Memory chip

controller circuit

Print cartridge

Memory chip contact

Memory chip

Figure 57. Print cartridge memory chip

126 Theory of operation Q2431-90912