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Part 1: Safety and Precautions
3. MAINTENANCE SERVICE PRECAUTIONS
3.1 EEPROM Data Precautions
This printer keeps track of various function settings, the total number of sheets printed,
and the total waste ink amount. Such information is stored in the EEPROM on the
logic board. Heed the following precautions during maintenance servicing.
1) Before servicing
Check the data stored in the printer with a test print (only for the total number of
sheets printed) and a service information print in the Service Mode. The total
number of sheets printed can provide an idea of how much the printer has been
used.
2) When the logic board (EEPROM) is replaced or if the memory data was unintentionally reset
Check the waste ink absorbers, replace them if necessary, and set the total waste ink
amount counter according to instructions in " Part 5: 4.3, Logic Board and Waste Ink
Absorber Replacement Cautions" (page 5-6). The waste ink counter total can be set to
0% (clearing the data), 25%, 50%, and 75%. If this task is neglected, a "waste ink
full" error may not occur even when the waste ink amount exceeds the full capacity
and waste ink may start leaking, depending on the waste ink amount already
absorbed by the waste ink absorbers.
The memory data in the replacement logic board (EEPROM) is not defined. After
replacing the logic board (EEPROM), reset the EEPROM. Check the above waste ink
absorbers and set the total waste ink amount counter. After resetting the EEPROM,
install the black BJ cartridge and calibrate the auto-alignment sensor. If the
calibration is not performed, an EEPROM error will occur when the printer is turned
on.
3) After waste ink absorber replacement
If the waste ink absorbers are replaced when the "waste ink full" error or another
error occurs, reset the total waste ink amount counter of the EEPROM.
CAUTION
Once the memory data of EEPROM is reset, the data cannot be checked by
a test print in the Service Mode. To check the stored data, be sure to
execute a test print in the Service Mode before resetting the EEPROM.
When the EEPROM is reset, all data including the various settings, total
number of sheets printed, and total waste ink amount are reset. The total
number of sheets printed cannot be incremented using the control panel.
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BJC-5000
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