Canon BJC-5000 Service Manual page 69

Part 3: Operating Instructions
BJC-5000
Do not execute "EEPROM all clear" function unnecessarily. The EEPROM
stores data such as the various settings, total number of pages passed,
CAUTION
number of times the BJ cartridge was replaced, and total waste ink
amount. Once the EEPROM is cleared, all the data will be lost and cannot
be reset excepting the waste ink counter. Execute the "EEPROM all clear"
function only when it is necessary and you are absolutely sure.
After executing the "EEPROM all clear" function, always execute the "Auto
alignment sensor calibration" function. Unless you execute this function,
an EEPROM error will occur when the printer is turned on.
Also, after executing the "EEPROM all clear" function, check the waste ink
amount and either replace the waste ink absorber or set the waste ink
counter to 25%, 50%, or 75%, depending on the condition. Check the ink
penetration rate for the entire waste ink absorber as a guideline to
determine the waste ink counter setting value.
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