Ricoh A217 Service Manual page 10

14 August 1997
Symbol Index
No.
S10 19
S11 29
S12 30
S13 1
S14 8
S15 9
S16 24
S17 6
S18 32
S19 28
S20 10
S21 2
S22 34
S23 35
S24 42
S25 37
S26 41
S27 23
S28 14
Switches
SW1 11
SW2 53
SW3 20
SW4 54
SW5 52
Description
Registration
Image Density
(ID)
Toner Density
(TD)
Scanner HP
Original Length-1
Original Length-2
Fusing Exit
Platen Cover
Toner End
Auto Response
Transfer Belt
Position
Original Width
Duplex Paper End Detects paper in the duplex tray.
Duplex Turn
Duplex Entrance
Side Fence
Jogger HP
End Fence
Jogger HP
Toner Overflow
By-pass Relay
By-pass Feed
Table
Tray Down
Tray Paper Size
LCT
LCT Cover
ELECTRICAL COMPONENT DESCRIPTIONS
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 amount of toner inside the
development unit.
Informs the CPU when the 1st and 2nd
scanners are at the home position.
Detects the length of the original. This is one
of the APS (Auto Paper Select) sensors.
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
Instructs the CPU to add toner to the toner
supply unit, and detects toner end conditions.
Returns the operation panel display and exits
from the energy saver mode.
Informs the CPU of the current position of the
transfer belt unit.
Detects the width of the original. This is one
of the APS (Auto Paper Select) sensors.
Detects the trailing edge of the copy paper to
determine the jogging timing, and detects
misfeeds.
Detects misfeeds.
Detects the home position of the duplex side
fence jogger.
Detects the home position of the duplex end
fence jogger.
Detects when the used toner collection bottle
is full.
Detects misfeeds.
Detects whether the by-pass feed table is
open or closed.
Sends a signal to the CPU to lower the LCT
bottom plate.
Determines what size of paper is in the paper
tray.
Cuts the dc power line and detects whether
the LCT is open or not.
Cuts the dc power line of the LCT lift motor.
7
Note