The italicized part could very well be true. Some Canon service manuals contain an error, not mentioning that after you have entered service mode and selected an operation, the power button now serves as an "Enter" button. See this: http://www.nifty-stuff.com/forum/viewtopic.php?pid=49752#p49752Santer wrote:, italics mine:
4) When the Power LED lights in green, press the Resume/Cancel button the specified number of time(s) according to the function listed in the table below. (Each time the Resume/Cancel button is pressed, the Alarm and
Power LEDs light alternately, Alarm in orange and Power in green, starting with Alarm LED.) [hth: I believe the power button has to be pressed once more after cycling the alarm button to complete the action. The power/resume-cancel button LEDs toggle to help you count.]
If you can find a copy of the service manual for your printer (start with this thread), you may find a listing of the various values. For example, the following is a listing of the first 10 (out of 46 total) values for an i9900.ghwellsjr said:How do you know how to interpret all those hexidecimal values?