Samsung SCX-6545N Series, Service Manual

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Product spec and feature
Service Manual
2-42
Samsung Electronics
2.2.4.11 SCF / HCF
A SCF PBA is a option cassette controlling in SCX-6545N. Max. 3 cassettes are connected on a purpose of
feeding paper. It consists one controller(S3F443FX) and two motor drive IC to control feeding timing through
Uart communication with a Main controller.
This PBA is also used in HCF. Key funtion is same with SCF and HCF & SCF can be able to be composed
together.
< Feeding Control >
The following example shows the order to select SCF.
Example)
- Event with 2nd SCF operating: 2’nd SCF -> 1’st SCF
-> 3’rd SCF
- Event with 3rd SCF operating: 3’rd SCF -> 2’nd SCF
-> 1’st SCF
- Event with 1st SCF operating: 1’nd SCF -> 3’st SCF
-> 2’rd SCF
I/ F U PP ER
I/ F L OW ER FEE D M O T O R FEE D SENS O R
P A P ER S I ZE
P A P ER SENS O R
Near-End
SENS O R (O nl y SCF )
FEE D
CLUTCH
Near-End
SENS O R (O nl y HCF )
I/ F U PPE R
I/ F LOWE R FE ED M OTOR F EED SEN SO R
PAPER S IZ E
PAPER SEN SO R
Near-End
SEN SO R (O nl y SC F)
FE ED
CLUTCH
Near-End
SENS OR (Only HCF )
1'
st
S
C
F
2'n d S C F
3'rd
S
CF
1
's
t
S
C
F
H
C
F
1
's
t
S
C
F
H
C
F