41356801TH Rev.1 154 /1.3 Engine Maintenance Mode• The engine maintenance mode is activated when the power is turned ON while keeping the FORMFEED key and ENTER key pressed down.• This mode adopts the menu for function selection.• The method for exit from this mode depends on the setting.• The engine maintenance mode provides the following functions:(1) Head Drive Time Setting• Sets the drive time of the LED head.(2) 600 x 1200 DPI strobe time• Do not change the default setting.(3) Printing Start Position Setting• Sets the printing start position.(4) Drum Count Total Display• Displays on the LCD the total number of drum revolutions of the unit, counted at the engineblock.(5) Drum Count Display• Displays on the LCD the total number of EP drum revolutions counted at the engine block.(6) Factory Adjustment (for High Capacity Second Paper Feeder/Power Envelope Feeder)• Do not change the default settings since these are factory settings and were set at the factory.(7) Engine Reset• No items subjected to, All except counters are subjected to reset, As a common spec.(See Table 4-1)