Canon LBP-1000 Service Manual page 79

displayed. Releasing the key clears the LED and the message.
6) If the Item key is pressed, all the LEDs are lit and the left half of the LCD (8 columns/both
rows) is illuminated. Releasing the key clears the LEDs and the display.
7) If the Value key is pressed, all the LEDs are lit and the right half of the LCD (8 columns/both
rows) is illuminated. Releasing the key clears the LEDs and the display.
8) If the Enter key is pressed, all the LEDs are lit and all the columns of the LCD are illumi-
nated (i.e. all the columns are blacked). Releasing the key clears the LEDs and the display.
9) When all the keys have been tested, "PANEL CHECK DONE" message is displayed and all the
LEDs are kept blinking. This state persists until the printer is turned OFF.
e. Update flash
Turn the power ON while pressing the Menu and Item keys simultaneously. This function pro-
vides a Flash Menu for managing and downloading firmware images.
Not that the function requires an expansion RAM DIMM as the total amount of RAM memo-
ry must be 8 Mbytes or more. If the Flash Menu is implemented with 4 Mbytes of memory
(default value), the "NOT ENOUGH DRAM TO PROCEED" message will be displayed.
CHAPTER 2
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