Canon LBP-2000, Service Manual

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4 - 33
CHAPTER 4
C . Copying the Counter Readings
If you have replaced the video controller PCB, be sure to perform the following work:
Caution: If you are mounting a hard disk (option), wait until you have copied the counter read-
i n g s .
1) Remove the 2 EEPROMs (IC4, IC5) from the exiting video controller PCB.
2) Making sure that the cut-off faces down, mount the EEPROM to the new video controller PCB.
Caution: Be sure that the EEPROM is mounted at its appropriate position (by referring to where
it was in the older PCB.)
3) Start the Service menu. (See C. ‘Service Menu’ under VIII. of Chapter 1.)
4) Copy the counter readings by going through the following flow of work:
Press the Menu key.
Press the Item key.
Press the Value key.
Press the Enter key.
Press the Enter key.
END
S R E VICE MENU
N R V AM MENU
N R V AM MENU
N R V AM=CHECK
N R V AM MENU
N R V AM=DUPLICATE
+ E R ALLY/-IGNORE
2 3 , - > 1
D N O E
Figure 4-7-3
5) Press the Go key to end the Service menu.
6) Start the User menu, and select ‘SHOW PAGE COUNT’ under ‘TEST MENU’; then, check to be
sure that the counter readings are as they were before replacement.