Toshiba e-STUDIO520 Service Manual page 97

• When the power is turned ON or the feed unit performs initialization.
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Detecting the presence of paper
- The tray-up motor (M21, 22) is turned ON. o The tray goes up.
o When the drawer tray-up sensor (S32, 38, 44, 50) is not turned ON within a fixed period of time, it
means that the tray is in an abnormal condition. o "Add paper" appears regardless of whether
paper is on the tray or not.
- It is cleared by turning the power ON/OFF.
o The drawer tray-up sensor (S32, 38, 44, 50) is turned ON within a fixed period of time.
o The tray-up motor (M21, 22) stops.
- At this time, if the drawer empty sensor (S31, 37, 43, 49) is ON: It is judged that there is paper
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The drawer area of the LCD panel blinks (when the drawer is selected).
• Paper in the drawer runs out during copying.
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The drawer tray-up sensor (S32, 38, 44, 50) is turned OFF
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The tray-up motor (M21, 22) is turned ON o The tray goes up.
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The drawer tray-up sensor (S32, 38, 44, 50) is turned ON o The tray-up motor (M21, 22) stops.
• The drawer empty sensor (S31, 37, 43, 49) is turned OFF during the copying although the drawer
tray-up sensor (S32, 38, 44, 50) is ON.
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It is judged that there is no paper.
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The drawer area of the LCD panel blinks (when the drawer is selected).
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The copying operation stops.
(B) Pick-up failure in bypass
• During bypass feeding
The bypass pickup solenoid (SOL3) is turned ON.
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The registration sensor (S18) is turned ON.
o The registration sensor (S18) is not turned ON within a fixed period of time.
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Pick-up failure in bypass
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The clear paper symbol is displayed: E120
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Copying operation is disabled.
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Solution: Remove the paper from the bypass tray. o The bypass paper sensor (S27) is turned OFF.
March 2005 © TOSHIBA TEC
OFF: It is judged that there is no paper.
e-STUDIO520/600/720/850 GENERAL OPERATION
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