Kyocera Mita KM-1505 Service Manual page 142

MSW
DFCHSOL
Fwd.rotation
SM
Rev.rotation
EL
SHPSW
• When the scanner home position switch (SHPSW) is on at power-on
a: When the main switch (MSW) turns on, the scanner motor (SM) rotates forward, which turns off 400 scanner motor
pulses after the scanner home position switch (SHPSW) turns off.
b: 35 ms after the scanner motor (SM) turns off, it rotates in reverse, which turns off 400 scanner motor pulses after the
scanner home position switch (SHPSW) turns on.
c: 35 ms after the scanner motor (SM) turns off, it rotates forward, which turns off 160 scanner motor pulses after the
scanner home position switch (SHPSW) turns off.
d: Lighting of the exposure lamp is confirmed, the AGC is performed, and shading is corrected.
e: The scanner motor (SM) rotates in reverse for 412 scanner motor pulses, at the end of which the scanner stops at
the scanning start position for the original on the contact glass.
600 P
a
35 ms
400 P 400 P
Timing chart 2-1-5 Scanner operation (2)
Lamp-on confirmation, AGC, and shading
b c d
160 P
35 ms
2BT
412 P
e
2-1-7