Exclusive Processes - Canon i900D Service Manual

4.8 Exclusive Processes

4.8.1 Exclusive processes in Memory Card Direct Printing and Digital Camera Direct Printing
As it is impossible to simultaneously process Memory Card Direct Printing and Digital Camera Direct
Printing, the following actions are taken:
When the digital camera is connected via the digital camera connection cable:
Memory Card Direct Printing settings and operation are not possible. Setting items are not
displayed in the operation panel, and the print start key is invalid.
"Digital camera connected." is displayed on the LCD viewer.
When direct printing from the memory card:
Digital Camera Direct Printing is impossible. (Setting in the digital camera is possible.) If Digital
Camera Direct Printing print operations are attempted, an error is displayed in the digital camera.
4.8.2 Exclusive process control between direct printing and printing from the host computer
As it is impossible to simultaneously process direct printing from memory cards or digital cameras and
printing from the host computer, the following actions are taken:
When printing from the host computer:
Memory Card Direct Printing and Digital Camera Direct Printing are impossible. (Setting is possible.)
At the start of direct printing operations, an error is displayed in the operation panel of the digital
camera.
In Memory Card Direct Printing and Digital Camera Direct Printing:
Printing from the host computer is impossible. (Print setting on the host computer is possible.) At the
start of print operations from the host computer, an error is displayed in the host computer.
4.8.3 Exclusive processes in host computer memory card access and Memory Card Direct Printing
Writing of data from the host computer to the memory card, while reading image data from the memory
card for direct printing is conducted as follows in order to avoid overwriting the image being printed in
Memory Card Direct Printing, via the host computer.
When direct printing from the memory card:
Writing data from the host computer to the memory card is not possible. (Reading of data is
possible.)
An error is displayed in the host computer at the start of data writing operations.
When writing data from the host computer to the memory card*:
Direct printing from the memory card is not possible. Even if the print start key is pressed, printing
will not start.
*To write data from the host computer to the memory card, the mode needs to be changed to the
Read/write mode, using the Memory Card Utility.
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