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DESCRIPTION OF SPECIAL FUNCTIONS Toner save mode Reduces toner consumption by approximately 10%. Power save modes The unit has two power save modes of operation: preheat mode and auto power shut-off mode. Preheat mode When the unit enters the preheat mode, the power save indicator will light up and other indicators will remain on or off as before. In this condition, the fuser in the unit is maintained at a lower heat level, thereby saving power. To copy from the preheat mode, make desired copier selections and press the start key using the normal copying procedure. Auto power shut-off mode When the unit enters the auto power shut-off mode, the power save ( ) indicator will light up and other indicators except the ONLINE indicator will go out. The auto power shut-off mode saves more power than the preheat mode but requires a longer time before starting copying. To copy from the auto power shut-off mode, press the start key. Then make desired copier selections and press the star key using the normal copying procedure. Auto clear The unit returns to the initial settings a preset amount of time after the end of copy, or scanner job. This preset amount of time (auto clear time) can be changed. Stream feeding mode For description of the stream feeding mode, see "Stream feeding mode". Resolution of AUTO & MANUAL mode You can set the copy resolution used for AUTO and MANUAL ( ) exposure mode.
You can reset this indicator by pressing these keys in sequence: Press "C" then press "Exposure Mode" then "C" again then "Exposure Mode" again. Note that the Exposure Mode key is the far left key on the panel. One you press these 4 keys in sequence the display should go blank. Then key in 24 as if to make 24 copies. Then press Print (Green Button) Then key in 7 as if to make 7 copies. Press print again. You should now get flashing 000. Turn machine off then back on and the light should be gone. Here it is in a short version: C, far left, C, far left, 24, print, 7, print, then power off and back on.
H4 indicates that you have no power for your heater lamp. Either the thermostat or the lamp is open. For the thermostat, you can reset it if you know how to remove the fuser section and its cover so you can see the thermostat and reset from there. For the heater lamp, check its continuity using a tester.
Sharp - How to reset code To enter service mode press thesekeys: orange C button,Interrupt, 0, Interrupt. The screen goes black when you have done itcorrectly. It may take a few tries – must be done in certain time. To clear the maintenance indication (service man): press 20, start,1, start (the display will start to flash when entered correctly).Power off/on to make the copier dude go away. Good Luck!