Canon BJC6500 - BJC 6500 Color Inkjet Printer, Service Manual, Page: 41 / 115

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BJC-6500 Part 2: MAINTENANCE
MAINTENANCE
2.4.3 When to reset the EEPROM
The EEPROM (IC11) on the control board stores total amount of waste ink absorbed,
function settings, and other information specific to the printer. Due to this, in the
following situations, it will be necessary set the model or reset the EEPROM
For details, refer to
Part 3: 2.1 Service Mode Operations (Page 3-8) .
1) On replacement of the control board.
Upon replacement of the control board, visually check the waste ink absorber's ink
level and replace if it is more than 7% filled, and reset the EEPROM. If the EEPROM
is not reset, waste ink could leak before the printer issues the waste ink full
warning. Since the EEPROM data of a replacement control board is not defined, you
must always set the model.
2) On replacement of the waste ink absorbers.
The EEPROM's waste ink counter should be cleared, or the EEPROM reset.
Previous EEPROM data cannot be confirmed with the test printing once
the EEPROM has been reset. Always perform a test print before resetting
the EEPROM, as all information such as function status, number of
sheets passed, waste ink amount, etc., except for the model setting, will be
lost when the EEPROM is reset.
It is not possible to write data (such as waste ink amount, model, etc.) of
the old EEPROM to the EEPROM of a replacement control board
The waste ink full error should not occur before the life of the printer has
been reached. However, frequently powering on/off, replacing the BJ
cartridge, opening the front cover (automatic cleaning), or usage
conditions may cause this error to occur earlier.
2.4.4 How and when to adjust the carriage belt tension
When the carriage belt tension has been loosened to replace the carriage, or for other
reasons, insert the tension spring (QY9-0052-000) in the correct position to adjust the
belt tension, and fix the idler pulley assembly by tightening the fixing screws, and
remove the tension spring.
NOTE
Figure 2-13 Carriage Belt Tension Adjustment
Idler Pulley
Tension Spring
Fixing Screws
Carriage Belt
CAUTION