Lcd Viewer - Canon i900D Service Manual

4.9 LCD Viewer

The i900D/i905D LCD viewer is a 2.0 inch (176 x 128 pixel, 65,000 colors) color LCD, and realizes two
functions: image display and operation display with the operation panel.
Operations are carried out by the user selecting the desired menu item from within a nested menu displayed
on the LCD viewer, and by pressing the OK button, proceeding with the next step.
During the process, if an image needs to be selected, it can be displayed on the LCD viewer, and the
selected image can be changed by using the left and right cursor buttons.
To protect the LCD viewer and preserve the backlight life, when no key operation has occurred for five
minutes, the LCD viewer is powered off. When any key other than the Power and Resume buttons is
pressed with the LCD backlight off, the LCD viewer turns on, however the original function of the key is
invalid.
The content displayed on the LCD viewer changes depending on the user's operation.
Eg. When printing is being performed from the PC, the LCD viewer displays "Printing from the computer",
when a digital camera is connected, the LCD shows the printer status by displaying "Digital camera
connected", and when an error occurs during printing, such as the paper out error, the LCD shows the error
by displaying "No paper. Load paper and press Resume".
When Card Direct Printing is performed, the LCD viewer becomes the operation display of the operation
panel.
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