Canon i900D Service Manual page 25

<Button and LCD viewer test>
After moving to the button and LCD viewer test mode, perform the following to check the operation
of buttons and the LCD viewer display.
1) The LCD viewer displaying color will change to "yellow" in full-screen display.
2) Press each button on the operation panel (other than the Power and Resume buttons). Every time
each button is pressed, a part of the display will change to "red". (The applicable area is as shown
in the figure below. The figure shows the example at the time when the Menu and Cancel buttons
are pressed.)
===LCD viewer display===
3) Confirm that the display has become to entirely "red".*
4) Press any two buttons, and confirm that the LED changes from green to orange. (After this, only
the Power button is accepted.)
5) Press the Power button to change the LED to green, and press the Power button once again to exit
the service mode and turn the printer off.
1
* Each operation panel button, except the Power and Resume buttons, will change the LCD display,
however, if any two buttons or more are pressed simultaneously before the display becomes "red",
an error occurs with the orange LED. In this case, only the Power button input can be accepted,
perform 5), and enter the service mode again to perform the test.
(7) Flash ROM upgrade
Upgrade the flash ROM by inserting the Compact Flash Card containing the ROM program file into the
card slot of the printer, and perform button operations.
<Flash ROM upgrade file>
The upgrade file will be uploaded to the SSIS system each time an upgrade occurs.
<Procedures for upgrading the flash ROM>
The flash ROM upgrade procedures will be given in the Service Information bulletin at each upgrade.
Note: The flash ROM can be upgraded without using a host computer.
Menu Setting Trimming
button button
Left
Up
button button
Photo Print
Viewer button
button
1 - 19
Zoom in
button button
Down Right
button button
Cancel Zoom out
button button
1