"Not enough available memory to save the pattern. Delete another pattern?" message appears on the LCD. What does it mean?

"The carriage of the embroidery unit will move. Keep your hands etc. away from the carriage." message appears on the LCD. What does it mean?

"The bobbin thread is almost empty." message appears on the LCD. What does it mean?

"Attach the embroidery frame." message appears on the LCD. What does it mean?

"Change to a larger embroidery frame." message appears on the LCD. What does it mean?

"The pattern is too large for the extra large embroidery frame." message appears on the LCD. What does it mean?

"The pattern combination is too large for the extra large embroidery frame. If you plan to add more patterns, rotate the pattern combination." message appears on the LCD. What does it mean and how do I clear it?

"Lower the buttonhole lever." message appears on the LCD. What does it mean?

"The needle is down. Press the needle position button to raise the needle." message appears on the LCD. What does it mean?

"Raise the buttonhole lever." message appears on the LCD. What does it mean?

"Finish editing the pattern before sewing the pattern." message appears on the LCD. What does it mean?

"Data volume is too large for this pattern." message appears on the LCD. What does it mean?

"No more patterns can be added to this combination." message appears on the LCD. What does it mean?

"This button does not operate when the embroidery unit is attached." message appears on the LCD. What does it mean?

"This embroidery card can not be used. Unusable cards include, cards licensed for sale in other countries, no embroidery pattern, etc." message appears on the LCD. What does it mean?

The machine stops and displays error message "Fabric edge is not recognized at this point" while edge sewing though the stitching is not reaching near the edge of the fabric.

Though touching "OK" on "Attach vertical stitch alignment foot and edge sewing sheet" window, the same window still appears.  

"Preventive maintenance is recommended" appears on the LCD.