Minolta Di551 Service Manual page 125

OTHER KINDS OF CONTROL
(2) OFF timing
• During warm-up, stops when M2 (drum) is
turned OFF.
• After completion of warm-up, not turned OFF
until SW2 (sub power) is turned OFF.
b. FM2 (writing section cooling)
(1) ON timing
Turned ON when M15 (polygon) is turned ON.
• During copying, held rotating at a high speed
in sync with M2 (drum).
• When not copying, held rotating at a low
speed.
(2) OFF timing
Not turned OFF until SW2 (sub power) is turned
OFF.
c. FM5 (cleaner cooling)
(1) ON timing
Turned ON when SW2 (sub power) is turned ON.
• During coping, held rotating at a high speed.
• When copying is completed, starts rotating at
a low speed after a lapse of the specified time
from turning OFF of M7 (paper exit). After this,
switching between high- and low-speed oper-
ations takes place according to the tempera-
ture in the machine.
(2) OFF timing
Not turned OFF until SW2 (sub power) is turned
OFF.
d. FM6 (paper exit/F), FM7 (paper exit/R), and
FM8 (main cooling/2)
(1) ON timing
At the start of copying, starts rotating at a con-
stant speed.
(2) OFF timing
Turned OFF when M7 (paper exit) is turned ON.
e. FM9 (scanner cooling)
(1) ON timing
Turned ON when L1 (exposure lamp) is turned
ON.
(2) OFF timing
Turned OFF when L1 (exposure lamp) is turned
OFF.
f. FM10 (ADU reverse motor cooling)
(1) ON timing
Starts rotating at a constant speed when M9
(ADU reverse) is turned ON.
(2) OFF timing
Turned OFF when M9 (ADU reverse) is turned
OFF.
g. FM13 (power supply cooling)
(1) ON timing
Starts rotating at a constant speed when SW1
(main power) is turned ON.
(2) OFF timing
Not turned OFF until SW1 (main power) is turned
OFF.
2-P-4