"a4 lc1 paper set" - Epson AcuLaser C3000 Printer

It is a very rare camera. This site says it has it.

https://www.solvusoft.com/en/update/drivers/graphics-card/sharp-electronics/ve-lc1-digital-camera/sub-models/

Have you tried connecting it to a computer and see if the camera is listed as a volume in Windows File Explorer?

https://www.google.com/search?q=sharp+ve-lc1+software+download

You could ask Sharp Support.

https://www.google.com/search?q=Sharp+Pixlab+driver

..

Please determine what size you are trying to print (A4, Letter, Legal, etc.). The printer is requesting A4 sized paper in the maunal paper feeder becuase either you selected manual feed or the setting for the default try (usually tray 1) is not set to the correct paper size. In your case, make sure the green slide adjustment on tray 1 is set to A4.

Try to perform a hard reset for service mode .

ensure that your printer settings are set for A4 paper. not just in the software you are printing from.
if you set A4 in your word processor programme it does not mean that is what will be used by your printer. go to your printer icon and click properties and ensure that the printer has A4 as default paper.

I hope this was useful.

your printer CHANGE PAPER TO
A4/LTR/LGL PLAIN
The paper size setting is set to a size other than
A4, letter or legal in fax receive mode.
The paper type setting is set to a type other than
PLAIN in fax receive mode.
Set the paper size setting to A4, letter or
legal and load paper of the same size.
Set the paper type setting to PLAIN.

Open the paper drawer
Remove the paper
There is a blue paper size plate,that keep the paper in the correct posision,Push it to the front and downwarts.The paper plate should come loose from the tray.Put it back in the openning for the A4.The openning for the A4 papersize is mark inside the paper tray.
Now set the blue papersize dail to A4 paper .
Then you are ready to copy with A4 paper.
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You have Auto Tray Switching acticated (ATS). Unless you specify each tray/paper with different settings it will switch.

Go in to the utility menu and you can find this in the paper tray settings area I believe.

You can turn this off completely to avoid this in the future.

If you look around you can even just tweak the settings for this, but in your case i would just shut it off.

Contact Panasonic - there is a widespread problem with CCDs in the last 3 or 4 years - keep pressing them for free repair as is your due with faulty goods, even outside the warranty period.
See the following link:-
Widespread CCD problems in consumer imaging productsCCD Sensor Problems in Consumer Imaging Products .... Given that the Leica DIGILUX 2 is a variant of Panasonic's Lumix DMC-LC1 design, it isn't surprising ...
www.imaging-resource.com/badccds.html - 51k - Cached - Similar pages

I shied away from several cameras through various reasons, quality problems.... 8 mp pushing the limits... steep learning curve and so on. The LC1 allows you to get started with excellent results by using auto, so you don't miss any shots and you can introduce yourself gradually in to manual without the frustration of less than acceptable shots. Set all settings to 'A', initially use spot metering, aim at your subject, half depress shutter button for the camera to focus, fully press to take the photo.