Oki OKIPAGE 14i Service Manual page 259

Head drive time setting
Fine adjustment of printing start position
Standard tray paper feed amount setting
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Transition to the operation mode occurs upon completion of resetting.
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Press the MENU key to update each category.
The operation returns to the first category after updating the last category, in a loop.
(6) SIDM Emulation Disable
(7) DRAM Memory Test
(8) System Maintenance Mode Menu System