User Guide

Print-cartridge memory chip
The print-cartridge memory chip is a non-volatile memory (NVRAM) device that is built into the print
cartridge. It stores information about the cartridge. The dc controller PCA reads and writes memory
data to the memory chip at specific times to monitor the print cartridge usage and condition. 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 Me MORY ERROR error message appears on the control-panel
display (see
Numerical printer messages).
Figure 5-44 Print-cartridge memory chip
160 5 Theory of operation