Pentax Optio W20 Operating Manual page 190

Data being recorded
Data being processed
Alarm is set
Messages such as the following may appear on the LCD monitor when
using the PictBridge function.
No paper in the printer
No ink in the printer
Printer error
Data error
Paper stuck in the
printer
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This message appears when you try to switch to Q mode
while an image is still being recorded, or when the protect
setting or DPOF setting is being changed. It disappears
after the image is recorded or the setting is changed.
This message appears when the camera takes more than
five seconds to display an image due to image processing,
or when the SD Memory Card or built-in memory is being
formatted.
This message appears when the alarm is set and before the
camera automatically turns off.
There is no paper in the printer.
There is no ink in the printer.
An error message has been sent from the printer.
A data error message has been sent from the printer.
The paper is stuck in the printer.