Change Of The Threshold When Waste Ink-Related Error Occurs - Canon G1000 Series Service Manual

In repair servicing:
< In Remote UI / AP mode >
Advise the customers the following:
- The login password for Remote UI and AP mode changes to "123456789" if the main PCB ass'y is
replaced in repair servicing.
- If the customer changed the password to the desired one, or forgot the password, press and hold the
Stop button, release it after the Power lamp flashes 21 times, enter the login password
"123456789," and he / she can log in to Remote UI / AP mode.
< At the initial Wi-Fi setup >
Advise the customers the following:
(1) The items displayed in "Printers on Network List"
The serial number displayed in "Printers on Network List" at the initial Wi-Fi setup is the last five digits
(numerical part) of the serial number registered in the printer. However, if the main PCB ass'y is replaced
in repair servicing, "-" is displayed instead of "123456789." Select "-" to proceed the Wi-Fi setup.
(2) Initial logon password
After the main PCB ass'y is replaced, in repair servicing, the logon password is changed to "123456789."

(10) Change of the Threshold When Waste Ink-related Error Occurs

In order to prevent waste ink leakage due to placing the printer in the incorrect direction, the threshold when
the waste ink-related errors such as waste ink full error and ink absorber almost full error occur is changed
and the countermeasures against the ink leakage from ink absorber is implemented.
< Details >
(1) The shape change of the current ink absorber and the addition of new ink absorber. (The amount of
absorbed waste ink is increased).
(2) The threshold when waste ink-related error occurs is changed from 220g to 140g.
With the change of threshold when waste ink-related error occurs, the period to waste ink-related error is
shortened by 64%. However, the ink absorber life still satisfies the current 15,000 pages as there is a
large margin in the ink amount of non-countermeasure ink absorber.
NOTE: The version of countermeasured ROM is Ver. 3.010 or later.
< The firmware change along with the change of threshold when waste ink-related error occurs >
Along with the change of the threshold when the waste ink-related errors such as waste ink full error and ink
absorber almost full error occur, the sequences having established the current and new thresholds are
incorporated into the printer firmware.
In the sequences having established the previous and new thresholds, the current value of the waste ink
amount is read first. If it is 54% (129g) or lower, in order to prevent the ink leakage from the ink absorber, the
new threshold of 140g is adopted. If it is 54% (129g) or higher, in order to prevent the immediate occurrence
of waste ink-related error after the firmware version is upgraded, the previous threshold value of 220g is
adopted.
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