Fig. 4-45 Normal Developer Level; Fig. 4-46 Lowered Level - Canon NP-70 Service Manual

4-38
NP•70
5)
DEVELOPER RESERVOIR
The developer reservoir is the. main body of the assembly, as well as the storage tank for de-
veloper. The capacity of the reservoir is 2.3 E? for normal operation and is kept at this level
by the auto -refilling action of the Premix bottle placed in the Developer Assembly.
As a precautionary measure to prevent assembly and drum damage, a level monitoring float is
attached to the bottom of the reservoir. This float operates as follows:
a) When the quantity
of developer is at the normal level, microswitch MS 12 is actuated, as
illustrated in Fig. 4-45.
MS12
Fig. 4-45 Normal Developer Level
b) If copying operation is continued with an empty dispersant bottle, a lowering of the
de-
veloper level results.
c)
When the developer quantity drops below approx. 1.8 ~, the float no longer presses the
actuator of
MS12 (see Fig. 4-46).
Fig. 4-46 Lowered Level
Second Printing,lune, 1974
© CANON
INC.