Ricoh FT6645 Manual page 21

ELECTRICAL COMPONENT DESCRIPTION
Symbol
S22 By-Pass Paper Size
S23 Toner Density
S24 Registration
S25 Toner End
S26 Auto-Response
S27 Drum Potential
S28 Image Density
S29 1st Paper End
S30 1st Paper Near End
S31 1st Paper Feed
S32 2nd Paper Near End
S33 1st Lift
S34 2nd Paper End
S35 Toner Collection
Motor
S36 2nd Lift
S37 3rd Lift
S38 3rd Paper Near End
(A095 copier only)
S39 3rd Paper End
Name
Informs the CPU what size paper
is in the by-pass feed table.
Senses the amount of toner in the
black developer.
Detects misfeeds and controls
registration clutch off-on timing.
Detects toner end condition.
Returns the display from the
screen saver.
Detects the drum surface
potential.
Detects the density of the ID
sensor pattern on the drum.
Informs the CPU when the 1st
cassette runs out of paper.
Informs the CPU when the 1st
cassette is in near end condition.
Controls the 1st paper feed clutch
off/on timing and the 1st pick-up
solenoid off timing.
Informs the CPU when the 2nd
cassette is in near end condition.
Detects the correct feed height of
the 1st cassette.
Informs the CPU when the 2nd
cassette runs out of paper.
Detects the toner collection motor
operation.
Detects the correct feed height of
the 2nd cassette.
Detects the correct feed height of
the 3rd cassette.
Informs the CPU when the 3rd
cassette is in near end condition.
Informs the CPU when the 3rd
cassette runs out of paper.
Function
1-20
23 April 1993
Index
No.
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39
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68
69
70
71
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76
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80