Move data from one wrksheet to another using submit button

Sub CopyData()
Dim ws As Worksheet
Dim ws1 As Worksheet
Set ws = Worksheets("Processing")
Set ws1 = Worksheets("Master")

ws.UsedRange.Offset(2, 0).Copy ws1.Range("A" & Rows.Count).End(xlUp).Offset(1, 0)
ws.UsedRange.Offset(2, 0).ClearContents
ws1.Range("A1:L" & Rows.Count).RemoveDuplicates Columns:=1, Header:=xlYes
ws1.Select
End Sub

Hello,(vcoolio) that was amazing thank for the prompt response ..i used the macro you provided and although it did transfer the data it wipes out my formulas I forgot to mention that I only want the value to be transfer I still need the formula that I have to remain in tact..in addition I have other column that are important data that cant be eliminated..this macro clear the entire wrksheet once transferred!!! so essentially I need from worksheet ("process sheet) column a-L and row 2-1000 to be transfer (value only) to ("employee history") as raw data....thank you so so much for your help ...i will drop a link to my dropbox with demo workbook.......also if you could share with me a possible work around were my content from (process sheet) column c2-c1000 are not being duplicated into d2-d1000 more then once...in other words is I have XYZ more then once it wont duplicate it in row (D) ONLY BUT ONCE..i need it to duplicate all duplicates from row C to row D....thanks in advance..:))))))) dropbox link below 

https://www.dropbox.com/s/obudwtjfn79mnqy/updatefinal%20demo%20master%20list.xlsm?dl=0 

Sub TransferData()

Application.ScreenUpdating = False

Dim ws As Worksheet
Dim ws1 As Worksheet
Set ws = Worksheets("Process Sheet")
Set ws1 = Worksheets("Employee History")
lRow = Range("A" & Rows.Count).End(xlUp).Row

ws.Range("A2:L" & lRow).Copy
ws1.Range("A" & Rows.Count).End(xlUp).Offset(1, 0).PasteSpecial xlPasteValues
ws.Cells.SpecialCells(xlCellTypeConstants, 23).Offset(1, 0).ClearContents
ws1.Columns.AutoFit
ws1.Select
Application.ScreenUpdating = True
End Sub

"...also if you could share with me a possible work around were my content from (process sheet) column c2-c1000 are not being duplicated into d2-d1000 more then once...in other words is I have XYZ more then once it wont duplicate it in row (D) ONLY BUT ONCE..i need it to duplicate all duplicates from row C to row D....thanks in advance..:)))))))"