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4.3.1 Operating Memory
The printer operates using the currently selected values contained in
operating memory. When the printer is powered on, it loads the values
stored in NVRAM into operating memory. When you select new values
(through escape sequences or from the control panel), they are placed in
operating memory and become part of the printer settings that are currently
in use. Figure 4–3 shows the operational flow between the different types
of memory.
Figure 4–3: Operating Memory
ROM NVRAM RAM
Load<-ROM Save->NVRAM
Power On
Printer
Save->RAM Reset
Operating Memory
(Contains Current Printer Settings)
Commands
(Host Computer)
Menu Operations
(Control Panel)
ROM
NVRAM
RAM
Not Cleared at Power-Off (Cannot Be Changed)
Not Cleared at Power-Off (Can Be Changed)
Cleared at Power-Off (Can Be Changed)
MLO-004947
Printer Configuration 4–7