TM 5-6675-319-14
a . F i l m d e t e c t o r c r o s s o v e r.
Detects introduction of paper into processor by
detector switches.
Either detector switch signals replenisher pumps to start and a
timer bell to signal when more paper can be fed into processor.
b . D e v e l o p e r r a c k.
Transports paper through developer solution.
c .
F i x e r r a c k.
Transports paper through fixer solution.
d . W a s h r a c k.
Transports paper through a wash water bath to remove excess
d e v e l o p e r a n d f i x e r s o l u t i o n.
e.
Rack crossovers.
Transports paper between developer/fixer and fixer/wash
r a c k s .
f .
Squeegee assembly.
Removes excess water from paper after it leaves wash rack
and before entering the dryer rollers.
g . D r y e r r o l l e r s .
Transports paper between air tubes to dry remaining water
from paper surface.
h . D r y e r t u r n a r o u n d.
Transports paper from dryer rollers to film bin .
2-3.2 Processing Fluid System.
Provides developer,
fixer, and wash solutions,
t h e i r r e c i r c u l a t i o n , r e p l e n i s h m e n t , a n d f i l t e r i n g .
It is composed of the following
components:
a . D e v e l o p e r t a n k.
Contains developer fluid and rack. Paper enters developer
a s t h e f i r s t s t e p i n p r o c e s s i n g .
b . F i x e r t a n k .
C o n t a i n s f i x e r f l u i d a n d r a c k .
P a p e r e n t e r s f i x e r t a n k a f t er
exiting developer tank as the second step in processing.
c . W a s h t a n k.
Contains wash rack and filtered water to wash excess developer
and fixer fluids from the paper prior to entering drying system.
d .
Recirculation pump.
Contains two centrifugal pumps and a common motor which
r e c i r c u l a t e s d e v e l o p e r a n d f i x e r s o l u t i o n s .
Developer is drawn from tank and pumped
through a temperature controller,
f i l t e r , h e a t e r , o r c h i l l e r a n d b a c k i n t o d e v e l o p e r
rack where it is evenly dispersed throughout the tank. Fixer is drawn out of its
t a n k , t h r o u g h i t s r e c i r c u l a t i o n s y s t e m,
and pumped back into bottom of fixer tank.
e. Replenisher pump.
Contains two centrifugal pumps and a common motor. Re-
plenisher pumps are turned on whenever a piece of paper passes through detector
r o l l e r s a n d t r i p s d e t e c t o r s w i t c h e s a b o v e t h e r o l l e r s.
Pumps then move developer
and fixer replenishment solutions from their external storage tanks, through
s t r a i n e r s,
then through flowmeters where flow rate is governed before passing into
processor tanks.
Pumps cease operating after paper has entered processor.
2-3.3 Dryinq System.
Directs warm, dry air to both sides of film/paper as it
p a s s e s t h r o u g h d r y e r r o l l e r s .
It is composed of the following components:
2 - 5
