Samsung ML-1665 Service Manual - Page 29
c Sensor Input Circuit, ■ Paper Empty Sensing, ■ Regi Sensing, ■ Paper Feeding
UPC - 635753627763
View all Samsung ML-1665 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 29 highlights
Product spec and feature (c) Sensor Input Circuit ■ Paper Empty Sensing The Paper empty sensor on the tray detects the state of paper empty and the state of paper width i.e. narrow paper width or not. ■ Regi Sensing N/A ■ Paper Feeding When paper passes the actuator (feed sensor part), it detects the signal of Photo interrupter, informs the paper feeding state to CPU, and then sprays the image data after certain time. If it doesn't detect the feed sensor within 1sec. after paper is fed, paper Jam0 is occurred (LED will be display Orange color). ■ Paper Exit Sensing N/A ■ Cover Open Sensing The Cover open sensor is located on the HVPS. After the top cover is opened, +24VS (Solenoid, Main Motor, Polygon motor part of LSU and HVPS), which is supplied to the each unit, is cut off. In case, the red will be ON for informing the facts to user. ■ SOLENOID Driving Clutches are driven by turning on TRs, which is controlled by CPU. The diode in the Clutch driving circuits protects TR driven from the noise pulse, which is occurred when the solenoid is de-energized. ■ Motor Driving The main motor driving circuits is on the main board There is motor driver IC on the main board control the step motor. Service Manual 2-19 Samsung Electronics