11.3 Construction of the MEAP Platform 0008-1398iR2270 / iR2870 / iR3570 / iR4570In addition to the installation of the system software, language file, and RUI, a printer equipped with MEAP functionscalls for the installation of MEAP content, which offers functions (system services) needed to run MEAPapplications and class libraries needed by the MEAP applications to control the device.It is important that the version of the system software be fully compatible with the version of the MEAP content,calling for special care. (In the case of a mismatch, the device will not be able to run the MEAP application.) Forversion information, refer to the Service Information bulletin that is released in conjunction with the system software.The following shows the components of a MEAP application:F-11-1[1] User Interface Control Bockinstalled as part of the system software[2] Device Control Blockinstalled as part of the system software[3] Operating Systeminstalled as part of the system software[4] Java VMinstalled as part of the system software[5] MEAP System Services (includes SDL/SSO)installed as part of MEAP content[6] Device Control Class Libraryinstalled as part of MEAP content[7] internally developed application[8] externally developed application[2][3][4][5][6][7] [8][1]
