Possible causes include the following.
There is no paper in the cassette (upper).
The paper source is incorrect.
Paper is not loaded properly.
Take the corresponding actions below.
Load paper in the cassette (upper).
Load paper in the paper source suitable for the paper size.
The small size photo paper such as 4" x 6" (10 x 15 cm) or 5" x 7" (13 x 18 cm), or Hagaki can be loaded in the cassette (upper).
Align the paper guides with the both edges of the paper when you load paper.
After carrying out the above measures, press the OK button to dismiss the error.
Double check your paper sizes for the tray itself.
Open MS word or something similar, file->print.. and before you print open Properties menu.There for the Output Size will be selected "Match Page Size". you don't want that , but the solution is manually select A4, or whatever your page size is.
Let me know if this doesnt help.
To try and clear it and you KNOW you have put the right paper size in (that is what 1007 error is)
Turn off printer, unplug, hold down power button for 1 minute, plug back in, turn on printer and test print.
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