Toshiba 4560, Service Manual

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4560/4570 OPERATION 4 - 2 Nov. 1997 © TOSHIBA
4.2.3 Automatic feed copying using the PRINT key
(1) PRINT key is pressed
• Main, transfer, and separation chargers, transfer bias, discharge lamp and LED eraser array are
turned ON.
• Optical fan motors (M6, M12, M18), exit fan motors (M7, M15) and developer unit fan (M19) rotate
at high speed.
(2) Cassette feeding
• Transport motor (M16) and Transport roller clutch (CLT1, 6) are turned ON.
• Feed clutch (CLT5) is turned ON
~ Pick-up roller, paper feed roller, separation roller and transport roller rotate.
• Main motor is turned ON
~ Drum, developer unit, transport belt, heat roller and exit roller rotate.
• Paper reaches the transport roller
~ Paper stop switch-2 (S16) is turned ON. After a set amount of time, the feed clutch (CLT5) is
turned OFF.
* Paper reaches the aligning roller. Paper stop switch-1 (S7) is turned ON.
~ Aligning operation
After a set amount of time, the feed roller stops rotating (CLT1).
(3) Carriage operation
• Exposure lamp is turned ON.
Carriages -1 and -2 scan in a forward direction.
~ Scanning motor (M15) is turned ON. At this time, if the toner density of the developer material is
lower than the set value, the copier enters the toner supply operation.
~ Toner motor (M9) is turned ON.
(4) A set time lag after the carriage operation;
Aligning motor (M17) and Transport roller clutch (CLT7) are turned ON:
~ paper is sent to the transfer unit.
The counter is increased by 1.
(5) Termination of carriage scanning.
• Scanning motor (M2) is turned OFF.
• Main charger and exposure lamp are turned OFF.
• Transport roller clutch (CLT7) and Aligning motor (M17) are turned OFF. (Timing of the shutting off
depends on paper size.)
(6) Exit operation
• Exit switch (S9) detects the passing of the paper trailing edge.
• Main motor (M1), transfer and separation chargers, transfer bias, discharge lamp, and LED eraser
array are turned OFF.