Samsung SCX-6555N - Page 37

Product spec and feature
Service Manual
2-24
Samsung Electronics
2.2.2.5 LSU
■ LSU consists of LD(Laser Diode) and polygon motor control. When the controller generate the printing
signal LD will turn on and Polygon motor starts.If the receiving part in LSU detect the beam and then
Hsync is generated. When the rotation of polygon motor is steady, it is time of LSU ready status for
printing. If either of two condition is not satised, LSU error is expected.
Trouble Failure Analysis
Polygon Motor Error No steady rotation of Polygon Motor
Hsync Error
In spite of steady rotation of Polygon Motor, No the generation of the Hsync
signal
2.2.2.6 Scanner( DADF)
■ Scanning Method: Color CCD
■ Scan speed : Mono 55/Color 45cpm@300*300
■ FCOT (rst copy out time) : within 5sec
■ DADF Copy speed : simplex 55cpm(LTR)
duplex 36cpm(LTR)
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA