Canon W6400 Series, Service Manual

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Chapter 2
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d) Sensors
Sensors are located in the purge unit for detecting the status of the printer components.
For more information, see Technical Reference > Detection Functions Based Sensors.
2.3.2.6 Maintenance Cartridge
2.3.2.6.1 Maintenance cartridge
0008-6347
a) Maintenance cartridge
The maintenance cartridge can hold up to approximately 1000 ml (approx. 1000g) of waste ink (including moisture evaporation in the waste ink).
b) Detection of waste ink in maintenance cartridge
The quantity of the waste ink in the maintenance cartridge is measured by counting dots.
When about 800 ml (about 800 g) of waste ink has been collected in the maintenance cartridge, a warning message "MTCart Full Soon" appears to indicate
that the maintenance cartridge is nearly full.
Printing can be continued even if the warning message appears.
When about 1000 ml (about 1000 g) of waste ink has been collected in the maintenance cartridge, an error message "Replace MT-Cart." appears to indicate
that the maintenance cartridge is full.
When the printer judges the maintenance cartridge as being full of waste ink, it stops printing immediately.
The printer will not operate unless the maintenance cartridge is replaced with a new one.
MEMO:
- This printer has an EEPROM in the maintenance cartridge and the maintenance cartridge status is controlled by the engine firmware which reads and
writes the content of that EEPROM. Therefore, the counter information need not be initialized when the maintenance cartridge is replaced.
- The ink discharge rate from the ink tubes and subbuffer resulting from execution of the Move Printer command in the Main menu is counted during the
initial filling suction.
Ink discharge rate occurring from "Move Printer" menu: Approx. 38 g per color
- A maximum of 300 pages can be printed (A1 size, 18% duty for each color) from the moment the warning message appears to the moment the error
message appears.
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Pump motor
Pumps
Cap
Pump homeposition sensor
Cap
Push rollers
to Maintenance cartridge
Ink tubes
Maintenance cartridge