Sharp MX-LCX5 User manual

SERVICE MANUAL
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
[1] SPECIFICATIONS . . . . . . . . . . . . . 1-1
[2] MAINTENANCE
1. Maintenance table . . . . . . . . . . 2-1
[3] REPLACEMENT AND ADJUSTMENT
1. Removing trays. . . . . . . . . . . . . 3-1
2. Front door and covers . . . . . . . 3-1
3. Inner cover, paper feed unit . . . 3-2
4. Paper feed roller . . . . . . . . . . . . 3-2
5. LCT motors. . . . . . . . . . . . . . . . 3-2
6. LCT exit sensor . . . . . . . . . . . . 3-4
7. Paper path sensors . . . . . . . . . 3-4
8. Main control board . . . . . . . . . . 3-5
9. Paper height,
paper width sensors . . . . . . . . . 3-5
10. Side registration adjustment . . . 3-5
11. Image position board and
sensor. . . . . . . . . . . . . . . . . . . . 3-6
12. Dehumidifier heater
installing procedures
(0PQC4180431//) . . . . . . . . . . . 3-6
[4] DETAILED DESCRIPTIONS
1. Paper feed . . . . . . . . . . . . . . . . 4-1
2. Paper detection/lift . . . . . . . . . . 4-2
3. Paper size detection. . . . . . . . . 4-2
4. Remaining paper detection . . . 4-3
5. Paper end detection . . . . . . . . . 4-3
[5] OVERALL MECHANICAL
INFORMATION
1. Mechanical component
layout . . . . . . . . . . . . . . . . . . . . 5-1
2. Drive layout . . . . . . . . . . . . . . . 5-1
3. Electrical components . . . . . . . 5-2
4. A3/DLT LCT MX-LCX5 layout
(with bypass) . . . . . . . . . . . . . . 5-3
5. Electrical component
summary . . . . . . . . . . . . . . . . . 5-3
TopPage
CONTENTS
CODE: 00ZMXLCX5/S1E
DIGITAL MULTIFUNCTIONAL SYSTEM
OPTION
LARGE CAPACITY THREE TRAYS
MX-LCX5
MODEL

MX-LCX5 SPECIFICATIONS 1 – 1
MX-LCX5 Service Manual
[1] SPECIFICATIONS
Form Large Capacity Trays (3 Trays)
Transport speed 85 – 110 sheets/minute to be supported
Transport standard Center alignment
Paper size Auto-AB: A3W, A4W, A3, B4, A4, A4R*, B5, B5R, A5R, 8.5 x 13*
Auto-Inch: 12 x 18, 11 x 17, 9 x 12, 8.5 x 14*, 8.5 x 13.4*, 8.5 x 11, 8.5 x 11R*, 7.25 x 10.5R, 5.5 x 8.5R
Manual: 318 x 469.5 mm, 318 x 234.75 mm, 312.5 x 440 mm, 312.5 x 220 mm
SRA3 (320 x 450 mm), SRA4 (320 x 225 mm) 8K, 16K, 16KR, Postcard
Custom Size: Main scanning: 100 – 320 mm (4.0 – 12.5)
Sub scanning: 140 – 470 mm (5.5 – 18.5)
*: As automatic detection, 8.5 x 11R/8.5 x 14/8.5 x 13.4 and A4R/8.5 x 13/8.5 x 13.4 is exclusion. Refer to the attached table.
Paper size label Available
Paper size setting Upper tray: User settings
Middle tray: User settings
Lower tray: User settings
Paper size setting for shipment Inch: 11 x 17
AB: A3
Feedable paper size/weight Upper tray: 52 – 205 g/m2/ 16 lbs Bond – 110 lbs Index
Middle tray: 52 – 300 g/m2/ 16 lbs Bond – 170 lbs Index
Lower tray: 52 – 205 g/m2/ 16 lbs Bond – 110 lbs Index
Paper type Plain paper, Heavy paper, Recycled paper, Thin paper, Pre-printed paper, Letter head, Punched paper, Transparency paper,
Colored paper, Tab paper, Label paper (Available only for the Offset tray)
Paper capacity Standard Paper
Upper tray / Lower tray: 1,000 sheets
Middle tray: 2,000 sheets
(80 g/m2)
Detection of remaining paper Available level detection (5 levels)
Upper tray / Lower tray: 100%, 75%, 50%, 25%, Empty
Middle tray: 100%, 75%, 50%, 25%, Empty
* Detection error 3%
Paper supply Paper supply from the upper section by the front loading method
Tray rising/falling time Rising Upper tray / Lower tray: 9 seconds or less
Middle tray: 24 seconds or less
Time required from tray insertion to empty detection without paper
Falling Self-weight falling
Reliability MCBJ in compliance with the main unit
MCBF
Life 5 years or 24,000K
Power consumption 150W or less
Power source DC24V Supplied by the main unit
Dimensions W 878 x D 729 x H 980 mm
Occupied dimension W 880 x D 730
Weight Approximately 175 kg
Installation/Maintenance By service person
Heater AC 18W x 2 36W (By service parts: 0PQC4180431//)

MX-LCX5 SPECIFICATIONS 1 – 2
Paper Size/Type/Weight
LCT(A3)
Upper Tray Middle Tray Lower Tray
Minimum paper weight 52 g/m2
(14 lbs bond)
52 g/m2
(14 lbs bond)
52 g/m2
(14 lbs bond)
Maximum paper weight 205 g/m2
(40 lbs bond)
(110 lbs index)
(65 lbs cover)
300 g/m2
(40 lbs bond)
(170 lbs index)
(100 lbs cover)
205 g/m2
(40 lbs bond)
(110 lbs index)
(65 lbs cover)
Paper type Thin paper Yes
(Even 52 g/m2
is possible)
Yes
(Even 52 g/m2
is possible)
Yes
(Even 52 g/m2
is possible)
Plain paper Yes Yes Yes
Recycled paper Yes Yes Yes
Colored paper Yes Yes Yes
Letter head Yes Yes Yes
Pre-printed paper Yes Yes Yes
Pre-punched paper Yes Yes Yes
Heavy paper 1 (106 – 128 g/m2) Yes Yes Yes
Heavy paper 2 (129 – 176 g/m2) Yes Yes Yes
Heavy paper 3 (177 – 205 g/m2) Yes Yes Yes
Heavy paper 4 (206 – 300 g/m2)No Yes No
Tab paper Yes Yes Yes
Transparency paper Yes Yes Yes
Label paper No Yes No
Paper size 12" x 18" (A3W) 305 x 457 Yes Yes Yes
Ledger (11" x 17") 279 x 432 Yes Yes Yes
Ledger (11" x 17") Z folding 279 x 216 — — —
Legal (8.5" x 14") 216 x 356 Yes Yes Yes
Legal (8.5" x 14") Z folding 216 x 178 — — —
Mexican Legal (8.5" x 13.4") 216 x 340 Yes Yes Yes
Foolscap (8.5" x 13") 216 x 330 Yes Yes Yes
Letter (8.5" x 11") 279 x 216 Yes Yes Yes
Letter R (8.5" x 11" R) 216 x 279 Yes Yes Yes
Letter R (8.5" x 11" R) Z folding 216 x 140 — — —
Invoice (5.5" x 8.5") 216 x 140 — — —
Invoice R (5.5" x 8.5" R) 140 x 216 Yes Yes Yes
Exective R (7.25" x 10.5") 184 x 266 Yes Yes Yes
9 x 12 (A4W) 305 x 229 Yes Yes Yes
A3 297 x 420 Yes Yes Yes
A3 Z folding 297 x 210 — — —
B4 257 x 364 Yes Yes Yes
B4 Z folding 257 x 182 — — —
A4 297 x 210 Yes Yes Yes
A4-R 210 x 297 Yes Yes Yes
A4-R Z folding 210 x 148 — — —
B5 257 x 182 Yes Yes Yes
B5-R 182 x 257 Yes Yes Yes
A5 210 x 148 — — —
A5-R 148 x 210 Yes Yes Yes
SRA3 320 x 450 mm Yes Yes Yes
SRA4 320 x 225 mm Yes Yes Yes
318 x 234.75 mm Yes Yes Yes
312.5 x 220 mm Yes Yes Yes
318 x 469.5 mm Yes Yes Yes
312.5 x 440 mm Yes Yes Yes
8K 270 x 390 Yes Yes Yes
16K 270 x 195 Yes Yes Yes
16K-R 195 x 270 Yes Yes Yes
Postcard 100 x 148 Yes Yes Yes
Special – Custom size
Custom Range
Yes Yes Yes
min Main 100 (4.0) 100 (4.0) 100 (4.0)
max Main 320 (12.5) 320 (12.5) 320 (12.5)
min Sub 140 (5.5) 140 (5.5) 140 (5.5)
max Sub 470 (18.5) 470 (18.5) 470 (18.5)
Special – Size uncertain No No No

MX-LCX5 MAINTENANCE 2 – 1
MX-LCX5 Service Manual
[2] MAINTENANCE
1. Maintenance table
: Check (Clean, replace or adjust as needed) {: Clean : Replace : Adjust ✩: Lubricate : Shift position
[Note 1] Replacement reference: Replace according to each paper feed counter value.
MX-LCX5 Paper feed tray 1, 2, 3: 200K or 1 year Torque limiter: 800K
(NOTE) Paper feed section roller life
Each roller life is as shown on the left. When, therefore, a certain paper feed unit is excessively used, its life may be expired before the mainte-
nance timing.
Actually, however, different sizes of paper are used with different paper feed trays, and it is quite rare that the roller replacement must be made
before the maintenance timing.
If a certain size of paper must be heavily used, set different paper feed trays for that paper size. This information must be explained to the user.
When servicing, check the use frequency of each paper feed tray, and replace the rollers as needed.
When cleaning the roller, it is advisable to use a cloth with a small quantity of water.
The friction level is smaller in the order of the paper pick-up roller, the paper feed roller, and the separation roller.
No. Parts name Occasionally
When calling 500K 1000K 1500K 2000K 2500K 3000K Life judgement
(Reference)
Tool, oil, chemicals Procedure
Treatment after procedure
1 Transport guide
plate
{{{{{{ When there is dirt, wipe with dry
cloth.
2 Grip roller drive/
follower
{{{{{{ When there is dirt, wipe with cloth
and water.
3 Pick-up roller
(1 – 3 step)
[Note 1] Roller life 200K When there is dirt, wipe with cloth
and water.
4 Feed roller
(1 - 3 step)
[Note 1] Roller life 200K When there is dirt, wipe with cloth
and water.
5 Separate roller
(1 – 3 step)
[Note 1] Roller life 200K When there is dirt, wipe with cloth
and water.
6 Sensor {{{{{{
7 Torque limiter
8Gear UKOG-0307FCZZ

MX-LCX5 REPLACEMENT AND ADJUSTMENT 3 – 1
MX-LCX5 Service Manual
[3] REPLACEMENT AND
ADJUSTMENT
1. Removing trays
CAUTION:
• Tray 5 weighs 27 kg (60 lb.) empty. Trays 4 and 6 weigh 20 kg
(44 lb.) each empty.
• To prevent damage to the tray and personal injury, never attempt
to lift a tray alone or without attaching the carrying handles, espe-
cially if a tray is loaded with paper.
• Two people on each side of the tray should lift the carrying han-
dles together to lift and move the tray.
• Never remove the tray if the LCT has not been docked to the
copier. Removing the tray while the LCT is standing alone can
unbalance the LCT and cause it to fall over.
Important:
Only one set of carrying handles is attached to the side of Tray 5.
Follow the procedure below to attach and use these handles to
move Tray 4, 5, or 6.
1) Pull the tray [A] out of the LCT until it stops.
2) Remove the screws from the right rail [B] (screw x 3)
3) Remove the screws from the left rail [D] (screw x 3)
NOTE: You do not need to remove the screw for the stopper
pin bracket at the back of the left rail.
4) Remove carrying handles [A] and [B] from the right side of the
tray (screw x 2 ea.)
5) Use the same screws to attach the carrying handles at (1) and
(2).
6) With one person on each side of the tray, lift it carefully and
remove it from the rails.
2. Front door and covers
Important:
• The frame is held together by 8 blue screws.
• To avoid weakening or warping the shape of the frame, never
remove these blue screws.
NOTE: The upper inner cover must be removed before the top
cover.
Remove:
[A] Right cover (screw x 6)
[B] Right rear cover (screw x 6)
[C] Left rear cover (screw x 6)
[D] Top cover (screw x 5)
[E] Front door (stopper x 1)
NOTE: While lifting the top cover, remove the snap ring and front
door.
[F] Paper slot cover (screw x 2)
[A]
[B]
(1)
(2)
[C]
[E]
[B]
[F][D]
[A]

MX-LCX5 REPLACEMENT AND ADJUSTMENT 3 – 2
3. Inner cover, paper feed unit
• Open the front door.
• Remove right cover (see 2.)
• Pull out tray [A]
Remove:
[A] Tray (see 1.)
[B] Knobs (x 3) (screw x 1 ea.)
[C] Upper inner cover (screw x 2)
[D] Knob (screw x 1)
[E] Lower inner cover (screw x 1)
[F] Paper feed unit (connector x 1, screw x 2)
4. Paper feed roller
Remove:
• Remove the right cover (see 2.)
• Remove the paper trays. (see 1.)
[A] Pick-up roller (stopper x 1)
[B] Feed roller (stopper x 1)
[C] Separation roller (stopper x 1)
NOTE: 1) The LCT pick-up and separation rollers are the same
as pick-up and separation rollers of the main machine.
These rollers are interchangeable.
2) The feed rollers of the LCT and main machine are dif-
ferent because they are designed to rotate in opposite-
directions. The feed rollers of the LCT and main
machine are not interchangeable.
3) Never touch the surface of the rollers with bare hands.
• Clear the PM counters for the new rollers (see Section "2. Pre-
ventive Maintenance).
5. LCT motors
A. Transport motors, LCT exit motor
[A]
[B]
[C]
[D]
[E]
[F]
[A]
[B]
[C]
(1)
(2)
(3)
[A]
[B]

MX-LCX5 REPLACEMENT AND ADJUSTMENT 3 – 3
4th, 5th, and 6th Transport Motors (1), (2), (3)
Remove:
• Left rear cover (see 2.)
[A] Motor unit (connector x 1, Timing belt x 1, screw x 2)
[B] Motor (screw x 2)
LCT Exit Motor (4)
Remove:
• Left rear cover (see 2.)
[C] Motor unit (connector x 1, Timing belt x 1, screw x 3)
[D] Motor (screw x 2)
B. Feed motors/grip motors
Each paper feed unit has a pick-up feed motor (1) and a grip motor
(2). The removal procedure is the same for each feed tray.
1) Remove the left rear cover (see 2.)
2) Use a small screwdriver to turn the shaft [A] so the pin can slip
out of the keyhole.
Remove:
[B] Motor unit (screw x 4, clamp x 2, connector x 2)
[C] Springs (x 2). First, loosen the screws (x 2) (1), (2).
[D] Paper feed motor (screw x 2, Timing belt x 1)
[E] Grip motor (screw x 2, Timing belt x 1)
Reinstallation
• Attach the tension spring, then tighten the screws (3) to tighten
the belts.
C. Lift motors
4th, 6th Lift Motors
The procedure for removing the 4th and 6th lift motors is the same.
Remove:
• Rear cover. (see 2.)
[A] Motor unit (screw x 2, connector x 1)
[B] 4th (or 6th) lift motor (screw x 4, Clip x 1, Coupling x 1, Spring x
1)
5th Lift Motor
• Rear cover. (see 2.)
[C] Motor unit (screw x 4, connector x 1)
[D] 5th lift motor (screw x 2, Clip x 1, Coupling x 1, Spring x 1)
(4)
[C]
[D]
(1)
(2)
[A]
[B]
[C]
[D]
(1)
(2)
[E]
[A]
[B]
[C]
[D]

MX-LCX5 REPLACEMENT AND ADJUSTMENT 3 – 4
6. LCT exit sensor
• Disconnect the LCT from the copier.
[A] Exit sensor unit (screw x 1, connector x 1)
[B] Exit sensor
7. Paper path sensors
A. Removing the vertical feed unit
• Open the front door.
Remove:
• Upper inner cover (see 3.)
• Lower inner cover (see 3.)
• Left rear cover (see 2.)
1) Disconnect the harness clamps (1) and (2) (clamp x 2).
2) Disconnect the motor harnesses (3), (4), (5) (clamp x 3, con-
nector x 11).
3) Remove:
[A] Upper stay (screw x 2)
[B] Lower stay (screw x 2)
[C] Vertical feed unit (screw x 6)
B. 4th transport, 4th relay upper, lower sensors
1) Remove the vertical feed unit. (see A.)
2) Remove:
[A] 4th Transport sensor (screw x 1, connector x 1)
[B] 4th Relay sensor – upper (screw x 1, connector x 1)
[C] 4th Relay sensor – lower (screw x 1, connector x 1)
[A]
[B]
(1)
(2)
(3)
(4)
(5)
[A]
[B]
[C]
[A]
[B] [C]

MX-LCX5 REPLACEMENT AND ADJUSTMENT 3 – 5
C. 5th relay sensor, 5th transport sensor
1) Remove the vertical feed unit. (see A.)
2) Remove:
[A] 5th Relay sensor (screw x 1, connector x 1)
[B] 5th Transport sensor (screw x 1, connector x 1)
D. 6th relay sensor, 6th transport sensor
• Remove the vertical feed unit. (see A.)
[A] 6th Relay sensor (screw x 1, connector x 1)
[B] 6th Transport sensor (screw x 1, connector x 1)
8. Main control board
• Remove the rear covers. (see 2.)
[A] Main control board (screw x 6, Standoffs x 2, connector x All).
9. Paper height, paper width sensors
Paper Height Sensors
Remove:
• Rear left cover. (see 2.)
[A] Paper height sensor unit (screw x 2, connector x 4).
[B] Clamp bracket (screw x 2)
[C] Paper height sensors (x 4) (Hooks x 2 each)
Paper Width Sensors
• Rear left cover. (see 2.)
[D] Paper width sensor unit (screw x 2, connector x 3)
[E] Paper width sensors (x 3) (Hooks x 2 each)
10. Side registration adjustment
[A]
[B]
[A]
[B]
[A]
[A]
[B]
[C]
[D]
[E]
[A]

MX-LCX5 REPLACEMENT AND ADJUSTMENT 3 – 6
Normally the side registration of the image can be adjusted in the
SP mode.
If the punch hole positions are not aligned from a particular feed
station, however, you can manually adjust the side registration by
changing the tray cover position for that tray, and then adjust the
side registration of the image.
1) Pull out the tray.
2) Change the screw positions [A] at both the right and left sides
as shown.
NOTE: Adjustment range: 0 ±2.0 mm adjustment step: 1.0 mm/
step
11. Image position board and sensor
Image Position Sensor
• Disconnect the LCT from the copier.
[A] Image position sensor unit (screw x 2, connector x 1)
[B] Stopper (screw x 1)
[C] Image position sensor
• After replacing the image position sensor do the procedure for
image position sensor adjustment. (see 12.)
Image Position Sensor Board
• Disconnect the LCT from the copier.
[D] Cover (screw x 2, clamp x 2)
[E] Image position sensor board (screw x 2, connector x 2, clamp x
2)
12. Dehumidifier heater installing
procedures (0PQC4180431//)
A. Component parts
B. Installing procedures
1) Remove the lower-stage cassette. (6 screws)
2) Remove the rear cabinet. (6 screws)
[A]
[B]
[C]
[E]
[D]
Interface harness
(with heater line)
M4 washer screw
(x 1)
M4 screw (x 7)Heater cover
Clamp (x 2)
Heater
(x 2)