Ricoh FT4460 Service Manual page 44

28 February 1989
Name
No.
24 1st Cassette Paper
End
17 2nd Cassette
Paper End
20 3rd Cassette
Paper End
28 Jogger Home Posi-
tion
63 Upper Relay
Lower Relay
61
16 1st Cassette Lift
Image Density
67
71 Original Width
(OW)
46 Original Length
(OL)
45 Auto Density (AD)
Inverter
54
Inverter Relay
53
Thermistors
- F u s i n g
Power Packs
SC Power Pack
6
29 CC/TC/Bias Power
Pack
Heaters
58 Drum
Anti-condensation
49
(Option)
Function
Informs the CPU when the first cassette
runs out of paper.
Informs the CPU when the second cas-
sette runs out of paper.
Informs the CPU when the third cassette
runs out of paper.
Informs the CPU when the jogger plates
are at the home position.
Detects misfeeds.
Detects misfeeds.
Detects the correct feed height of the 1st
cassette.
Detects the density of the image on the
drum.
Used for determining paper size in the
APS mode.
Used for determining paper size in the
APS mode.
Senses the background density of the
original.
Detects trailing edge of copies for inverter
roller reverse timing. Detects misfeeds.
Detects misfeeds.
Monitors the fusing temperature.
Provides high voltage for the separation
corona.
Provides high voltage for the charge
corona, the development roller bias and
the transfer corona.
Prevents moisture around the drum.
Prevents moisture from forming on the op-
tics.
1-24
P to P
Symbol
Location
D-11
S10
S11 D-11
S12 D-11
S13 F-11
S14 D-12
S15 D-12
F-8
S16
S17 D-2
D-6
S18
S19 D-6
S20 D-2
S21 F-10
F-10
S22
TH1 F-2
P1 H-10
P2
G-9
H1 G-3
H2 G-3