Ricoh D146 Service Manual page 589

SC No. Level
SC721-44 B
SC721-52 B
SM
Error Name/Error Condition/Major Cause/Solution
Stapler Motor Error (1K sheet finisher)
§
During movement to home, the home position could not be
detected even after a predetermined time (t0 sec) elapsed
(1st time is jam notification, 2nd time is SC notification).
§
During movement from home, the home position was
detected even after a predetermined time (t1 sec) elapsed
(1st time is jam notification, 2nd time is SC notification).
§
During motor drive, the output from the encoder could not
be counted for a predetermined number of times within a
predetermined time (t0 sec) (1st time is jam notification, 2nd
time is SC notification).
The time to return to home without fail, the time coming from
home, and the time for which the encoder output can be counted
during normal operation, are taken as t0, t1 and t2.
Folding Plate Drive Motor Error (1K sheet finisher)
§
Motor driver detects an error (short-circuit and overheating)
(1st time is SC).
§
During movement to home, the home position could not be
detected within a predetermined pulse (p0 pulse) (1st time
is jam notification, 2nd time is SC notification).
§
During movement from home, the home position was
detected for longer than a predetermined pulse (p1 pulse)
(1st time is jam notification, 2nd time is SC notification).
The return pulse to home and pulse coming from home during
normal operation are calculated and measured. The pulses
which are 1.5-2 times the normal operation pulse are taken as
p0 and p1.
5-115
Service Call 700-792
D146/D147/D148/D149/D150