e-STUDIO520/600/720/850 GENERAL OPERATION March 2005 © TOSHIBA TEC
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4.2 Description of Operation
4.2.1 Warming-up
1) Initialization
Turning the power ON
# The IH coil is turned ON.
# The set number "1" reproduction ratio "100%" and "WAIT WARMING UP" appears.
# The fan motors are turned ON.
# Initialization of the scanning system
- The carriage moves to the home position and stops.
- The carriage moves to the peak detection position.
- The exposure lamp (EXP) is turned ON.
- Peak detection (a white color is detected by the shading correction plate)
- The exposure lamp (EXP) is turned OFF.
- The carriage moves to the home position.
# Initialization of the feeding system
- Each drawer tray goes up
# Initialization of the writing system
- The polygonal motor (M2) rotates at a high speed. (e-STUDIO850)
- The polygonal motor (M2) rotates at a low speed. (e-STUDIO520/600/720)
- The beam position is controlled. (e-STUDIO850)
# Other
- The main charger cleaner operates.
2) Pre-running operation
The pre-running operation starts when the temperature of the fuser roller surface reaches a certain
degree. (Pre-running is not performed when the fuser roller is already hot enough.)
# The fuser motor (M3) is turned ON.
- The fuser roller rotates.
# The drum motor (M11) is turned ON.
- The drum rotates.
# The used toner transport motor (M9) is turned ON
- The used toner transport auger rotates.
# Image quality control
- It charges the drum and detects the drum surface potential to set the optimal condition for output-
ting the image.
- It forms a patch on the drum and reads out its reflective ratio to set the optimal condition.
3) When the surface temperature of the fuser roller becomes sufficient for fusing;
# The IH coil (IH-COIL) is turned OFF.
# The set number "1" and "READY" are displayed.
4.2.2 Ready state (ready for copying)
The buttons on the control panel are enabled.
# When no button is pressed for a certain period of time;
- The set number "1" and reproduction ratio "100%" are displayed. The equipment returns to the
normal ready state.