Step-7: Please Try to create a sales invoice, modify invoice and print invoice. Check Invoice Format File Name, Page Width, Page Length & Printing. If the system is showing error on Print screen, please run following two commands from Administrator Login in the system:
On 32 Bit Systems: C:\Windows\System32 (type System64 if your system is 64 Bit) >Regsvr32 MSCOMCTL.OCX
On 32 Bit Systems: C:\Windows\System32 (type System64 if your system is 64 Bit)>Regsvr32 MSCOMCT2.OCX