Toshiba e-STUDIO555 Service Manual page 104

• When the power is turned ON or the feed unit performs initialization.
↓
Detecting the presence of paper
- The tray-up motor (M21, 22) is turned ON. → The tray goes up.
→ 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. → "Add paper" appears regardless of whether
paper is on the tray or not.
- It is cleared by turning the power ON/OFF.
→ The drawer tray-up sensor (S32, 38, 44, 50) is turned ON within a fixed period of time.
→ 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
paper.
↓
The drawer area of the LCD panel blinks (when the drawer is selected).
• Paper in the drawer runs out during copying.
↓
The drawer tray-up sensor (S32, 38, 44, 50) is turned OFF
↓
The tray-up motor (M21, 22) is turned ON → The tray goes up.
↓
The drawer tray-up sensor (S32, 38, 44, 50) is turned ON → 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.
↓
It is judged that there is no paper.
↓
The drawer area of the LCD panel blinks (when the drawer is selected).
↓
The copying operation stops.
(B) Pick-up failure in bypass
• During bypass feeding
The bypass pickup solenoid (SOL3) is turned ON.
↓
The registration sensor (S18) is turned ON.
→ The registration sensor (S18) is not turned ON within a fixed period of time.
↓
Pick-up failure in bypass
↓
The clear paper symbol is displayed: E120
↓
Copying operation is disabled.
↓
Solution: Remove the paper from the bypass tray. → The bypass paper sensor (S27) is turned OFF.
e-STUDIO555/655/755/855
GENERAL OPERATION
OFF: It is judged that there is no
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