C0990 3Rd Drawer Lift-Up Failure; C0994 : 3Rd Drawer Elevator Motor M28'S Failure To Turn; C0996 3Rd Drawer Lock Release Failure; C0997 : 3Rd Drawer Shift Gate Motion Failure - Minolta Di 620 Manual

Code Description

C0990 3rd Drawer lift-up failure

C0994 3rd Drawer Elevator Motor M28's
failure to turn

C0996 3rd Drawer lock release failure

C0997 3rd Drawer Shift Gate motion fail-
ure
Detection Timing
• 3rd Drawer Paper Lift-Up Sensor PC42 is not blocked
([L]) even when 3rd Drawer Elevator Motor Pulse Sen-
sor PC29 has detected 400 HIGH-going and LOW-
going edges after 3rd Drawer Elevator Motor M28 has
started turning forward (for upward motion); or, PC42
is not blocked ([L]) even after the lapse of 10 sec. after
M28 has started turning forward.
• PC42 is not blocked ([L]) even after the lapse of 3 sec.
after 3rd Drawer Paper Empty Sensor (PC50) has
been blocked ([L]) while M28 is turning forward (for
upward motion).
• Either 3rd Drawer Lower Position Sensor PC20 or 3rd
Drawer Overrun Detecting Sensor PC21 is not
unblocked ([H]) even after 60 edges are counted after
M28 has started turning forward (for upward motion).
• PC20 is not blocked ([L]) even after 400 edges are
counted after M28 has started turning backward (for
downward motion); or, PC21 is not blocked ([L]) even
after the lapse of 10 sec. after M28 has started turning
backward.
• PC21 is not blocked ([L]) even after the lapse of 3 sec.
after PC20 has been blocked ([L]) while M28 is turning
backward (for downward motion).
• PC42 is not unblocked ([H]) even after 40 edges are
counted after M28 has started turning backward (for
downward motion).
• PC21 is not blocked ([L]) when PC20 is blocked ([L])
while M28 is turning forward (for upward motion) or
backward (for downward motion).
3rd Drawer Elevator Motor Pulse Sensor PC29 detects
no HIGH-going or LOW-going edges even after the
lapse of 500 msec. after M28 has started turning for-
ward (for upward motion) or backward (for downward
motion).
The 3rd Drawer is not pushed out even after the lapse of
10 sec. after three repeated cycles of keeping 3rd
Drawer Lock Solenoid SL6 energized for 500 msec., an
attempt of pushing the 3rd Drawer out.
• The input to 3rd Drawer Shift Gate Position Sensor
PC52 remains LOW even after the lapse of 2 sec. after
3rd Drawer Shift Gate Motor M30 has been energized
with a LOW input to PC52.
• The input to PC52 remains HIGH even after the lapse
of 2 sec. after M30 has been energized with a HIGH
input to PC52.
T-30