Kyocera KM-4230 Service Manual page 44

Print key
Fwd. rotation
SM
Rev. rotation
SHPSW
FVSYNC signal
A
Manual copy density control, copy paper: A3/11" × 17", magnification ratio 100%
A When the print key is pressed, the scanner motor (SM) reverses for 410 pulses and
then rotates forward.
B 414 pulses after the scanner motor rotates forward, the FVSYNC signal turns on for
9921 pulses for scanning.
C The scanner motor (SM) reverses to return the scanner to the home position.
D 110 pulses after the scanner home position switch (SHPSW) turns on, the scanner
motor (SM) turns off, and the scanner stops at its home position.
410 P
414 P
B
Timing chart 1-3-4 Scanner operation
9921 P
C
2A3/4
110 P
D
1-3-21