Table of Contents
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14 August 1997
Symbol
Index
No.
S10
19
Registration
S11
29
Image Density
(ID)
S12
30
Toner Density
(TD)
S13
1
Scanner HP
S14
8
Original Length-1
S15
9
Original Length-2
S16
24
Fusing Exit
S17
6
Platen Cover
S18
32
Toner End
S19
28
Auto Response
S20
10
Transfer Belt
Position
S21
2
Original Width
S22
34
Duplex Paper End Detects paper in the duplex tray.
S23
35
Duplex Turn
S24
42
Duplex Entrance
S25
37
Side Fence
Jogger HP
S26
41
End Fence
Jogger HP
S27
23
Toner Overflow
S28
14
By-pass Relay
Switches
SW1
11
By-pass Feed
Table
SW2
53
Tray Down
SW3
20
Tray Paper Size
SW4
54
LCT
SW5
52
LCT Cover
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ELECTRICAL COMPONENT DESCRIPTIONS
Description
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
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