Konica 7075 GUIDE MANUAL l401e

Page 1

LT-401

SERVICE HANDBOOK
Dec. 1999
Ver. 1.0
KONICA CORPORATION
TECHNOLOGY SUPPORT CENTER
TOKYO JAPAN
KCS706511
Page 2

CONTENTS

SAFETY AND IMPORTANT WARNING ITEMS ..................
Refer to the 7075 serveice handbook on page C-1
1. OUTLINE
LT-401 PRODUCT SPECIFICATIONS ................... 1-1
[1] Type ............................................................1-1
[2] Functions ....................................................1-1
[3] Machine Data..............................................1-1
[4] Maintenance ............................................... 1-1
[5] Operating Environment ............................... 1-1
CENTER CROSS SECTION DRAWING ................ 1-2
DRIVE SYSTEM DRAWING ................................... 1-3
[1] Paper feed drive unit................................... 1-3
[2] Stacked paper up/down wire drive unit ....... 1-4
2. UNITEXPLANATION
PAPER FEED UNIT ................................................ 2-1
[1] Composition ................................................ 2-1
[2] Mechanisms................................................2-1
[3] First paper feed control ............................... 2-2
[4] Up/down plate drive control ........................ 2-4
[5] Remaining paper detection/No paper
detection control..........................................2-5
3. DISASSEMBLY/ASSEMBLY
PAPER FEED SECTION.........................................3-1
[1] Cleaning the Paper Dust
Removing Brush ......................................... 3-1
[2] Cleaning the PS106 (LT feed PS)/PS107
(LT first paper feed PS)...............................3-1
[3] Removing and Reinstalling the Paper
Feed Roller Unit .......................................... 3-1
[4] Replacing the Paper feed Roller Rubber/
Feed Roller Rubber.....................................3-2
[5] Replacing the Double Feed
Prevention Roller ........................................ 3-3
[6] Replacing MC101 (LT feed MC)/MC102
(LT first paper feed MC).............................. 3-4
[7] Replacing the Up/down Wires.....................3-5
Page 3
1

OUTLINE

1 OUTLINE
Page 4

LT-401 PRODUCT SPECIFICATIONS

LT-401
[1] Type
Type: Side mount type large volume paper
feed tray
[2] Functions
Document size:
Standard size paper: A4/B5/8.5 x 11 Maximum quantity: 4000 sheets
(80g/m2)
[3] Machine Data
Power source: 24V DC/5V (supplied
from the main unit), AC 30V
Max. power consumption: Weight: Approx. 30 kg Machine dimensions:
82W
1 OUTLINE
430mm
639mm
[4] Maintenance
Maintenance: Same as the main unit Machine life: Same as the main unit
[5] Operating Environment
Temperature: 10°C to 30°C (50°F to 86°F) Humidity: 10% to 80%RH
Note: The contents of this manual may change
without prior notice.
690mm
1 - 1
Page 5
LT-401

CENTER CROSS SECTION DRAWING

1 OUTLINE
Feed roller
Conveyance roller
Paper feed roller
Top cover
Up/down wire (the other side wire as well)
Double feed prevention roller
Up/down plate
1 - 2
Page 6

DRIVE SYSTEM DRAWING

LT-401
[1] Paper feed drive unit
LT First paper feed SD
(SD100)
FRONT
1 OUTLINE
Feed roller
Paper feed roller
Conveyance roller
FRONT
LT First paper feed MC
(MC 102)
Double feed prevention roller
LT paper feed motor
(M101)
LT feed drive MC
(MC101)
Paper feed roller
Feed roller
1 - 3
Page 7
LT-401
1 OUTLINE
[2] Stacked paper up/down wire drive unit
Up/down plate
FRONT
LT up/down motor
Tray up/down shaft
1 - 4
Page 8
2

UNIT EXPLANATION

2 UNIT EXPLANATION
Page 9

PAPER FEED UNIT

[1] Composition
MC101(LT feed MC)
M101 (LT paper feed motor)
MC102(LT first paper feed MC)
SD100 (LT first paper feed SD)
Paper dust removing brush
Conveyance roller
LT-401
PS106 (LT first paper feed detection PS)
PS107 (LT first paper feed PS)
2 UNIT EXPLANATION
Up/down wire (the other side wire as well)
M100 (LT up/down motor)
Remaining paper detection sensor actuating gear
[2] Mechanisms
Mechanism Method
*1 Paper lifting Wire drive
Paper feed Paper feed roller No paper detection Photo sensor (PS108)
+actuator
Paper size detection
*2 Remaining paper Remaining paper de-
detection tection sensor actuating
Paper conveyance Roller transport Paper size A4, B5, 8.5 x 11
*1: Paper lifting
a. Up/down plate lifting drive operation
The up/down plate is lifted with the up/down wires. When the top cover closes, M100 (LT up/down drive motor) rotates and the up/down plate con­nected to the up/down wires rises.
None
gear+photo sensors (PS102, PS103, PS10 4, PS105)
Up/down plate (or LT tray)
SW 100 (LT tray down drive switch)
b. Up/down plate down drive operation
The up/down plate automatically lowers by 139 mm when the top cover is opened. Subsequently , it is lowered b y 139 mm each time SW100 (LT tray down drive switch) is pressed.
*2: Remaining paper detection
The LT-401 is equipped with a remaining paper detection sensor actuating gear which rotates together with M100 (LT up/down motor) driving the up/down plate. The remaining paper detection sensor actuating gear has an actuator to turn ON/OFF PS102 (L T remaining paper detection PS1), PS103 (LT remaining paper detection PS2), PS104 (LT remaining paper detection PS3), and PS105 (LT remaining paper detection PS4).
2 - 1
Page 10
LT-401
Each sensor is turned ON/OFF according to the rotating position of the remaining paper detec­tion sensor actuating gear and since this is linked with the up/down position of the up/down plate, the remaining paper quantity in the LT-401 can be determined by monitoring the ON/OFF of each sensor. The remaining paper quantity detected with the four sensors is displayed on the main body display.
M100 (LT up/down motor)
2 UNIT EXPLANATION
Gear for M100
Remaining paper detection gear
Actuator
PS102 (LT remaining paper detection PS1)
PS103 (LT remaining
paper detection PS2)
PS104 (LT remaining paper detection
PS3) PS105 (LT remaining paper detection PS4)
[3] First paper feed control
LT DB
HTR101
MAIN BODY
HTR101 CONT
AC(H)
24VDC
PGND
5VDC
SGND
LT TXD
LT RXD CLK
LT TXD LATCH
LT TXD CLK
LT ERR LT RXD LT ACK LT REQ
The first paper is fed by MC101 (LT feed) driving the paper roller and paper feed roller . The feed roller ass'y is lowered by SD100 (first paper-f eed) to touch the pa­per when MC101 (LT feed) turns ON and drive SD100 (LT first paper feed). After touching and feeding the paper, the f eed roller ass'y is r aised by SD100 (LT first paper feed) to release the feed roller ass'y from the paper. Then, the paper is fed into the paper convey­ance section by the paper feed roller which is driven by M101 via MC102 (LT first paper feed). The related signals are: PS100 (LT top cover open/ close detection), PS106 (L T feed detection), PS107 (LT first paper feed detection), and PS110 (LT jam access door open/close detection).
5VDC PS100 SGND
5VDC PS106 SGND
PS107
5VDC PS110 SGND
24VDC
MC101 DRIVE
24VDC
MC102 DRIVE
24VDC
SD100 DRIVE
24VDC
M101 CONT
M101 EM
PGND
PS100
PS106
PS107
PS110
MC101
MC102
SD100
MS101 MS102
M101
1. Operation
a. First paper feed timing
(1) Start of first paper feed
At predefined after the copy button is pressed
(2) Start of second and subsequent papers
At predefined interval after PS106 (L T first paper feed detection) is turned OFF by the previous paper
2 - 2
Page 11
LT-401
(3) OFF timing
At predefined interval after PS106 is turned OFF by the last paper
b. Interlock
The power supply line of M101 (LT paper feed) is equipped with MS101 (LT interlock MS1) and MS102 (LT interlock MS2). When the top cover is opened, MS101 turns OFF, and when the jam access door is opened MS102 turns OFF , thereby cutting off the power supply to M101. Furthermore, the top cover is equipped with PS100 (LT top cover open/close detection) and the jam access door is equipped with PS110 (LT jam access door open/close detection) and when either of these doors is opened during paper feed, the M101 drive signal is turned OFF to stop the paper feed operation.
c. Internal heater
The LCT is equipped with HTR101 (LT internal heater) to protect the paper from humidity. HTR101 is directly controlled by the main body ACDB (AC drive board) r ather than b y the LTDB (LT drive board).
2. Signals
a. Input signals
(1) PS100 (PS100 to LTDB)
Top cover open/close detection signal [L]: Cover opened [H]: Cover closed
(2) PS106 (PS106 to LTDB)
Transport roller exit paper detection signal [L]: Paper detected [H]: Paper not detected
(3) PS107 (PS107 to LTDB)
Transport roller entrance (pre-registration position) paper detection signal [L]: Paper detected [H]: Paper not detected
(4) PS110 (PS110 to LTDB)
Jam access door open/close detection signal [L]: Cover closed [H]: Door not opened
(5) M101 EM (M101 to LTDB)
M101 rotation error detection signal [L]: M101 rotating [H]: M101 not rotating
(6) LT TXD (MAIN BODY to LTDB)
Serial data to transmit main body PRCB operating status to LTDB
(7) LT TXD LATCH (MAIN BODY to LTDB)
LT TXD signal latch signal
(8) LT TXD CLK (MAIN BODY to LTDB)
LT TXD signal clock signal
(9) LT ERR (MAIN BODY to LTDB)
Signal to notify LTDB when there is error in the main body
(10)LT ACK (MAIN BODY to LTDB)
Serial data transmission enable signal from LCT to main body PRCB
b. Output signal
(1) MC101 DRIVE (LTDB to MC101)
MC101 ON/OFF drive signal [L]: MC101 ON [H]: MC101 OFF
(2) MC102 DRIVE (LTDB to MC102)
MC102 ON/OFF drive signal [L]: MC102 ON [H]: MC102 OFF
(3) SD100 DRIVE (LTDB to SD100)
SD100 ON/OFF drive signal [L]: SD100 ON [H]: SD100 OFF
(4) M101 CONT (LTDB to M101)
M101 ON/OFF control signal [L]: M101 ON [H]: M101 OFF
(5) LT RXD (LTDB to MAIN BODY)
Serial data to transmit the L TDB operating status to main body PRCB
(6) LT RXD CLK (LTDB to MAIN BODY)
LT RXD signal clock signal
(7) LT REQ (LTDB to MAIN BODY)
Serial data send request signal from LCT to main body PRCB
2 UNIT EXPLANATION
2 - 3
Page 12
LT-401
[4] Up/down plate drive control
LT DB
MAIN BODY
2 UNIT EXPLANATION
24VDC
PGND
5VDC
SGND
LT TXD
LT RXD CLK
LT TXD LA TCH
LT TXD CLK
LT ERR LT RXD LT ACK LT REQ
When the top cover opens or closes, M100 (LT up/ down motor) rotates forward or backward to move the up/down plate up or down. The up/down plate descends by 139 mm each time SW100 (LT tray do wn drive switch) is pressed while the top cov er is opened. The related signals are PS100 (L T top cov er open/close detection), PS101 (LT tray bottom limit detection), and PS109 (LT tray top limit detection).
1. Operation
a. Up/down plate descend timing
(1) ON timing
When the top cover is opened and PS100 is turned OFF, M100 rotates backward to lo wer the up/down plate.
(2) OFF timing
M100 turns OFF at predefined interval after PS100 turns OFF or SW100 turns ON. This in turn lowers the up/down plate by 139 mm.
(3) Others
The up/down plate descends by 139 mm each time SW100 is pressed until PS101 turns ON to indicate the bottom limit of the up/down plate.
5VDC PS100 SGND
5VDC PS101 SGND
SW100
5VDC PS109 SGND
M100 DRIVE M100 DRIVE
PS100
PS101
SW100
PS109
M100
b. Up/down plate ascend timing
(1) ON timing
When the top cover is closed and PS100 is turned ON, M100 rotates forward to raise the up/down plate.
(2) OFF timing
When the up/down plate rises and PS109 (LT tray upper limit detection) turns ON to indicate the detection of the topmost paper, M100 turns OFF and stops the up/down plate. The up/down plate also stops when the top cover is opened and PS100 turns OFF.
2. Signals
a. Input signals
(1) PS101 (PS101 to LTDB)
Up/down plate bottom limit detection signal [L]: Up/down plate not at lower limit [H]: Up/down plate at lower limit
(2) PS109 (PS109 to LTDB)
Up/down plate top limit detection signal [L]: Up/down plate not at upper limit [H]: Up/down plate at upper limit
(3) SW100 (SW100 to LTDB)
SW100 ON/OFF detection signal [L]: SW100 ON [H]: SW100 OFF
b. Output signals
(1) M100 DRIVE1, 2 (LTDB to M100)
M100 drive signal These signals switches the direction of the drive current to control the rotation direction of M100.
2 - 4
Page 13
LT-401
[5] Remaining paper detection/No paper
detection control
LT DB
MAIN BODY
24VDC
PGND
5VDC
SGND
LT TXD
LT RXD CLK
LT TXD LA TCH
LT TXD CLK
LT ERR LT RXD LT ACK LT REQ
The remaining paper quantity is detected by PS102 (LT remaining paper detection 1), PS103 (LT remain­ing paper detection 2), PS104 (LT remaining paper detection 3), and PS105 (LT remaining paper detec­tion 4) and no paper detection is made by PS108 (LT no paper detection). The signals detected by these sensors are controlled by LTDB (LT drive board) and displayed on the main body display.
1. Operation
a. Remaining paper detection control
The remaining paper quantity is determined from the ON/OFF combination of sensors PS102, PS103, PS104, and PS105 which detect the rotational position of M100 that is driving the up/ down plate. Each sensor turns ON or OFF ac­cording to the position of the remaining paper detection sensor actuating gear which is linked with the rotation of M100. The remaining paper quantity is detectable at eight levels, but it is displayed on the main body display as five levels.
5VDC PS102 SGND
5VDC PS103 SGND
5VDC PS104 SGND
5VDC PS105 SGND
5VDC PS108 SGND
M100 DRIVE M100 DRIVE
PS102
PS103
PS104
PS105
PS108
M100
<Remaining paper quantity and display>
Stacked paper
quantity 0~700 701~1200 1201~1700 1701~2200 2201~2700 2701~3200 3201~3700 3701 or
PS102 PS103 PS104 PS105
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
ON
ON
ON
ON
ON
ON
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
Remaining paper quantity display
OFF
1 flashing
OFF
1 on
OFF
2 on
OFF
2 on
ON
3 on
ON
3 on
ON
4 on
ON
4 on
more
Caution:
The remaining paper quantity is indicated on the control panel with four horizontal bars. Stacked paper quantity diff ers depending on the thickness of the paper.
b. No paper detection control
When there is no more paper inside the LCT, PS108 turns ON and a message is displayed on the main body display.
2. Signals
a. Input signals
(1) PS102 (PS102 to LTDB)
Remaining paper detection sensor actuating gear rotational position detection signal [L]: PS102 OFF [H]: PS102 ON
(2) PS103 (PS103 to LTDB)
Remaining paper detection sensor actuating gear rotational position detection signal [L]: PS103 OFF [H]: PS103 ON
(3) PS104 (PS104 to LTDB)
Remaining paper detection sensor actuating gear rotational position detection signal [L]: PS104 OFF [H]: PS104 ON
(4) PS105 (PS105 to LTDB)
Remaining paper detection sensor actuating gear rotational position detection signal [L]: PS105 OFF [H]: PS105 ON
(5) PS108 (PS108 to LTDB)
LCT no paper detection signal [L]: No paper [H]: Paper present
2 UNIT EXPLANATION
2 - 5
Page 14
3

DISASSEMBLY/ASSEMBLY

3 DIS./ASSEMBLY
Page 15
3 DIS./ASSEMBLY
This section explains how to disassemble and reassemble the machine. When disassembling and reassembling the machine, follow the precautions given below.
1. Be sure the power cord has been unplugged from the wall outlet.
2. The disassembled parts must be reassembled following the disassembly procedure in reverse unless otherwise specified.
3. Care should be taken not to lose small parts. Care should also be taken not to install small parts in wrong places.
4. Do not operate the machine before installing all the disassembled parts completely .
5. Removal of some screws is prohibited in this section. Never loosen them.
Page 16

PAPER FEED SECTION

LT-401
[1] Cleaning the Paper Dust Removing
Brush
Caution: If LT is connected to the main
unit, make sure that main unit power plug is disconnected from the power outlet.
a. Procedure
(1) Open the top cover. (2) Remove the two screws to detach the paper feed
cover B.
Top cover
Screws (2)
Paper feed cover B
[2] Cleaning the PS106 (LT feed PS)/
PS107 (LT first paper feed PS)
Caution: If LT is connected to the main
unit, make sure that main unit power plug is disconnected from the power outlet.
a. Procedure
(1) Looking into the paper ejection side of the LT-401
from below, and clean sensors through the cavity for PS106 and the cavity for PS107 using a blower brush or the like.
Cavity for PS106
Cavity for PS107
Paper exit side
3 DIS./ASSEMBLY
(3) Insert a flat bladed screwdriver in the slots (in two
locations) for paper dust removing brush to re­lease the locking lugs, then remove the paper dust removing brush.
Paper dust removing brush
Cavity
Locking lugs
(4) Clean the paper dust removing brush using a
blower brush or the like.
(5) Reinstall the above parts following the removal
steps in reverse.
[3] Removing and Reinstalling
the Paper Feed Roller Unit
Caution: If LT is connected to the main
unit, make sure that main unit power plug is disconnected from the power outlet.
a. Procedure
(1) Open the top cover. (2) Remove the spring from the paper feed roller unit.
Top cover
Spring
Remove this.
Paper feed roller unit
Paper feed roller unit
3 - 1
Page 17
LT-401
(3) After removing the two retaining rings, remove
the two bearings outward to remove the paper feed roller unit.
Paper feed roller unit
Bearing
Retaining ring
(4) Reinstall the above parts following the removal
3 DIS./ASSEMBLY
Retaining ring
steps in reverse.
[4] Replacing the Paper feed Roller
Rubber/Feed Roller Rubber
Caution: If LT is connected to the main
unit, make sure that main unit power plug is disconnected from the power outlet.
a. Procedure
(1) Remove the paper feed roller unit. (2) Remove the bearing and paper feed reference
actuator.
Bearing
(3) Remove the two retaining rings. (4) Remove the bearing outward to detach the roller
section from the roller fitting.
Roller fitting
Retaining ring
Bearing
Bearing
(5) Remove the bearing from the opposite side of the
coupling, then remove the paper feed roller from the shaft.
(6) Remove the retaining ring to pull the feed roller
from the shaft.
(7) Remove the rubber from each roller.
Paper feed roller rubber
Paper feed roller
Shaft
Coupling
Paper feed reference actuator
Bearing
3 - 2
Bearing
Retaining ring
Shaft
Feed roller rubber
Feed roller
Paint mark
Page 18
LT-401
(8) Reinstall the above parts following the removal
steps in reverse.
Caution 1: Make sure rollers and rubber por-
tions are oriented properly when reinstalling them.
Caution 2: Make sure the one-way clutch
direction is correct.
Caution 3: Check whether grease or the like
is present on each roller.
[5] Replacing the Double Feed
Prevention Roller
Caution: If LT is connected to the main
unit, make sure that main unit power plug is disconnected from the power outlet.
a. Procedure
Caution: With the power held on, press the
SW100 (L T tra y down s witch) to move the up/down plate down to the bottom
in advance. (1) Remove the paper feed roller unit. (2) Remove the two screws to detach the double
feed prevention roller unit cover.
(3) Remove the two screws to detach the double
feed prevention roller unit. Caution: When reinstalling the double feed
prevention roller unit, tighten the screws on the rear side first.
Double feed prevention roller unit
Screws
(4) Remove the two retaining rings, fit the shaft into
the D-cut in the fitting, and remove the double feed prevention roller together with the shaft.
3 DIS./ASSEMBLY
Double feed prevention roller
Double feed prevention roller unit cover
Screws
Double feed prevention roller
D-cut
Retaining ring
3 - 3
Page 19
LT-401
(5) Remove the double feed prevention roller rubber
from the double feed prevention roller.
Paint mark
Double feed prevention roller
Double feed prevention roller rubber
(6) Reinstall the double feed prevention roller in the
3 DIS./ASSEMBLY
reverse order of the removal procedure.
Caution 1: Make sure the double feed pre ven-
tion roller rubber is oriented properly when reinstalling it.
Caution 2: Check whether scratch or like is
visible on the pet cock for the drive gear.
Caution 3: Check whether grease or the like
is present on double feed roller.
[6] Replacing MC101 (LT feed MC)/
MC102 (LT first paper feed MC)
a. Procedure
(1) Open the top cover. (2) Remove the spring from the paper feed roller unit. (3) Remove the two screws to detach the top cover.
Top cover
Screws
Shaft
(4) Remove the two screws to detach the clutch
replacement cover.
Clutch replacement cover
3 - 4
Screws
Page 20
LT-401
(5) Disconnect two relay connectors (CN765, CN766)
of the clutches.
(6) Remove the Retaining ring to detach each clutch.
MC101 (LT Paper feed MC)
Retaining ring
Relay connector (CN766)
MC102 (LT first paper feed MC)
Retaining ring
Relay connector (CN765)
(7) Reinstall the above parts following the removal
steps in reverse.
Caution: When installing each MC, make
sure that the stopper of each clutch
is on the predefined position.
(3) Remove four screws to detach the right side
cover.
Screws
Right side cover
Screws
(4) After opening the jam access door, remove four
screws to detach the front cover.
Caution: Remove four screws and then
remove the front cover with the jam access door closed.
3 DIS./ASSEMBLY
[7] Replacing the Up/down Wires
a. Procedure
Caution: With the power held on, press the
SW100 (L T tra y down s witch) to move
the up/down plate down to the bottom
in advance. (1) Open the top cover. (2) Remove the clutch replacement cover.
Jam access door
Screws
Screws
Right side cover
3 - 5
Page 21
LT-401
(5) Remove the five screws to detach the rear cover.
Screw
(6) Remove the five relay connectors (CN749,
CN780, CN781, CN782, CN783) to disconnect
3 DIS./ASSEMBLY
the wiring harness from the up/down motor mount-
ing plate. (7) Remove the E-ring to detach the up/down gear. (8) Pull the pin from the shaft. (9) Remove the E-ring to detach the bearing. (10)Remove the three screws to detach the up/down
motor assembly.
Screw
Rear cover
Screw
(11)Replace the up/down wire following the instruc-
tions in “Removing Up/Down Wires” and “Install­ing Up/Down Wires.”
Caution: Four up/down wires with different
length, two at the front and two at the back, are used. Wires with the same length can be used either at the front or back if they are used in the same location.
Wire A
Wire B
Wire C
Wire D
Up/down motor assembly
Shaft
Relay connector (CN749)
Screw
Screw
Pin
Relay connector (CN780)
Bearing
Relay connector (CN781)
Relay connector (CN782)
Relay connector (CN783)
Screw
E-ring
Up/down gear
E-ring
3 - 6
Page 22
<Removing the up/down wire >
LT-401
Up/down plate
14.Release the metal ball and remove wire A.
7. Release the metal ball and remove wire C.
9. Release the metal ball and remove wire D.
12.Release the metal ball and remove wire B.
Wire A
Wire B
Wire B
Wire A
Wire D
Wire C
2. Release the metal ball and remove wire C.
18.Release the metal ball and remove wire A.
4. Release the metal ball and remove wire D.
16.Release the metal ball and remove wire B.
1. Remove the E ring.
3. Remove the pulley.
5. Remove the pulley.
3 DIS./ASSEMBLY
Wire C
Wire D
6. Remove the E ring.
8. Remove the pulley.
10.Remove the pulley.
11.Remove the E ring, pulley, and release wire B.
FRONT
13.Remove the pulley and release wire A.
Tray up/down shaft
15.Remove the E ring, pulley, and release wire B.
17.Remove the pulley and release wire A.
3 - 7
Page 23
LT-401
<Installing up/down wire>
7. Pass wire A through
15. Pass wire C through each pulley and attach the metal ball.
12. Pass wire D through
3 DIS./ASSEMBLY
10. Pass wire B through
Wire A
Wire B
each pulley and attach the metal ball.
each pulley and attach the metal ball.
each pulley and attach the metal ball.
Wire C Wire D
Wire B
Wire A
FRONT
Up/down plate
Tray up/down shaft
20. Pass wire B through each pulley and attach the metal ball.
2. Pass wire A through each pulley and attach the metal ball.
17. Pass wire D through each pulley and attach the metal ball.
5. Pass wire B through each pulley and attach the metal ball.
Wire D
Wire C
18. Insert wire C in tray up/down shaft to attach the pulley and fasten with E ring.
13. Insert wire C in tray up/down shaft to attach the pulley and fasten with E ring.
14. Wind wire C six times around the pulley so that it pulls out the top.
six times
11. Insert wire D in tray up/down shaft, attach the pulley, and then wind wire D six times around the pulley so that it pulls out the top.
six times
1. Insert wire A in tray up/down
6. shaft to attach the pulley and then pull out wire A from the bottom.
3. Insert wire B in tray up/down shaft to attach
8. the pulley and fasten with E ring.
4. Pull out wire B from under the pulley.
9.
19. Wind wire C six times around the pulley so that it pulls out the top.
six times
16. Insert wire D in tray up/down shaft, attach the pulley, and then wind wire D six times around the pulley so that it pulls out the top.
six times
3 - 8
Page 24
(12)After installing the up/down wires, make sure the
up/down wires are passed in the grooves in the pulleys properly and wires do not run on the sides of the pulleys. Also make sure the up/down plate can be moved up and down smoothly by hand.
Caution: If the up/down plate does not move
up and down smoothly , replace the up/ down wires.
(13)Install the up/down wire drive motor assembly,
up/down gear, and relay connectors, following
the removal steps in reverse. (14)Remove the E-ring to detach the idle gear. (15)Rotate the remaining paper detection gear until
the round hole in this gear is aligned with the
oblong hole in the up/down motor mounting plate.
Up/down motor mounting plate
Remaining paper detection gear
LT-401
Round Oblong hole
E-ringIdle gear
hole
(16)Install the idle gear. (17)Attach the covers following the removal steps in
reverse. Caution: After replacing the up/down wires,
correct inclination and deviation of the up/down plate. (Refer to “ADJUST­MENT.”)
3 DIS./ASSEMBLY
3 - 9
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