TM 5-6675-324-14
k. Copy counter fault detection circuit.
Copying is disabled when there is a O input
at Q205-4 (WTCTO). Input WTCTO is the
output of an OR gate consisting of 0250 and
D251. If WAIT = O (from Fixing Roller
Heater Control circuit via Q250-23) appears
at D251 (during warm-up) or CNTOP = O
appears at D250 (due to a fault in the copy
counter), WTCTO = O appears at Q205-4.
3-24
