Pentax L - Manual (Page 183)

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Cleaning the CCD
Shadows may appear in the image for white backgrounds and other
shooting conditions if the CCD becomes dirty or dusty. This indicates that
the CCD must be cleaned. Please contact PENTAX service center for
professional cleaning because the CCD is a precision part.
1
Turn the camera off and remove the lens.
2
Turn the camera on.
3
Select [Sensor Cleaning] on the [H Set-up] menu.
4
Press the four-way controller (5).
The Sensor Cleaning screen appears.
• Do not use a spray type blower.
• Do not clean the CCD when the exposure mode is set to p (Bulb) mode.
• Always cap the lens mount area to prevent dirt and dust from accumulating
on the CCD when no lens is on the camera.
• It is recommended to use the AC adapter when cleaning the CCD.
• When the battery level is low, “Not enough battery remaining to clean sensor”
is displayed on the LCD monitor.
• If you are not using the AC adapter, please use batteries with ample capacity
remaining. A warning beep will sound if the battery capacity becomes low
during cleaning. Please stop cleaning immediately.
• Do not put the tip of the blower inside the lens mount area. If the power is
turned off, this could cause damage to the shutter or the CCD sensor.
• Use of the AC adapter (optional) is recommended.
• The self-timer lamp blinks and [Cln] appears on the LCD panel while cleaning
the CCD.