Ricoh FT5535 Service Manual page 641

Symbol Name
Sensors
By-pass Feed Paper
S1
Width
By-pass Feed Paper End Informs the CPU that there is no paper in
S2
Upper Tray Paper End
S3
(A212 machine only)
Upper Relay
S4
Lower Tray Paper End
S5
Lower Relay
S6
LCT Lower Limit
S7
(A214 machine only)
LCT Paper End
S8
(A214 machine only)
LCT Upper Limit
S9
(A214 machine only)
Registration
S10
Image Density (ID)
S11
Toner Density (TD)
S12
Lens Horizontal HP
S13
Lens Vertical HP
S14
Scanner HP
S15
3rd Scanner HP
S16
Original Length-2
S17
S18 Fusing Exit
Platen Cover
S19
SM
CÓPIA NÃO CONTROLADA
Informs the CPU what width paper is in the
by-pass feed table.
the by-pass tray.
Informs the CPU when the upper paper
tray runs out of paper.
Detects the leading edge of paper from the
upper tray to determine the stop timing of
the upper paper feed clutch, and detects
misfeeds.
Informs the CPU when the lower paper tray
runs out of paper.
Detects the leading edge of paper from the
lower paper tray to determine the stop
timing of the lower paper feed clutch, and
detects misfeeds.
Sends a signal to the CPU to stop lowering
the LCT bottom plate.
Informs the CPU when the LCT runs out of
paper.
Sends a signal to the CPU to stop lifting
the LCT bottom plate.
Detects the leading edge of the copy paper
to determine the stop timing of the paper
feed clutch, and detects misfeeds.
Detects the density of various patterns on
the drum during process control.
Detects the toner concentration inside the
development unit.
Informs the CPU that the lens is at the
horizontal home position.
Informs the CPU that the lens is at the
full-size position.
Informs the CPU when the 1st and 2nd
scanners are at the home position.
Informs the CPU when the 3rd scanner is
at the home position.
Detects the length of the original. This is
one of the APS (Auto Paper Select)
sensors.
Detects misfeeds.
Informs the CPU whether the platen cover
is up or down (related to APS/ARE
functions). ARE: Auto Reduce and Enlarge
5-11
CÓPIA NÃO CONTROLADA
Function Index No.
25
28
45
93
46
92
86
87
26
27
44
47
34
19
14
23
20
39
15
A212/A214