C - 51.3 Engine Maintenance Mode(1) The engine maintenance mode is activated when the power is turned ON while keeping theForm Feed key and Enter key pressed down.(2) This mode adopts the menu for function selection.(3) The method for exit from this mode depends on the setting.(4) The engine maintenance mode provides the following functions:(a) Head type setting• Set the type of the LED head. (300-1W or 300-2W or 600-4W)(b) Head drive time setting• Sets the drive time of the LED head.(c) Head width setting• Sets the width of the LED head. (39 chips or 40 chips)(d) Head type• Only for the 600dpi head, the adjustment method for the adjustment head is set.(e) Strobe time• Only for the OKIPAGE 6ex, 600dpi head, the percentage of the strobe time for600*1200dpi to the strobe time of 600*600dpi is set.(f) Transfer current setting• Set transfer current value according to humidity and medium status for optimumprinting result.(g) Printing start position setting• Sets the printing start position. Do not change the default setting.(h) Drum count total display• Displays on the LCD the total number of drum revolution of the unit, counted at theengine block.(i) Drum count display• Displays on the LCD the total number of EP drum revolutions counted at the engineblock.