Sharp MX-DE28 Service Manual ▷ View online
MX-DE28 N EXTERNAL VIEW AND INTERNAL STRUCTURE 2 – 3
3.PWB, Heater
No.
Name
Function/operation
1
Paper feed tray 2 size detection PWB
Detects the paper size.
2
Desk control PWB
This PWB controls and drives the desk.
3
Dehumidifying heater 1
This is used to dehumidify inside of the tray.
4
Dehumidifying heater 2
This is used to dehumidify inside of the tray.
5
Dehumidifying heater 3
This is used to dehumidify inside of the tray.
1
2
3
5
4
MX-DE28 N EXTERNAL VIEW AND INTERNAL STRUCTURE 2 – 4
4.Roller
No.
Name
Function/operation
1
Paper pickup roller1(Paper feed tray3)
Feeds paper to the paper feed roller.
2
Paper feed roller1(Paper feed tray3)
Feeds paper to the paper transport section.
3
Separation roller1(Paper feed tray3)
Separates paper to prevent double feed.
4
Level transport roller L (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
5
Level transport roller L (Drive)
Transports paper from the paper feed roller 3 to the level transport roller R.
6
Level transport roller R (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
7
Level transport roller R (Drive)
Transports paper from the level transport roller L to the transport roller 2.
8
Paper pickup roller (Paper feed tray2)
Feeds paper to the paper feed roller.
9
Paper feed roller 1 (Paper feed tray2)
Feeds paper to the paper transport section.
10
Transport roller 1 (Drive)
Transports paper from the paper feed roller to the main unit.
11
Transport roller 4
Reduces the load when the paper is transported at the turning around part.
12
Transport roller 1 (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
13
Separation roller 1(Paper feed tray2)
Separates paper to prevent double feed.
14
Transport roller 2 (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
15
Transport roller 2 (Drive)
Transports paper from the paper feed roller to the main unit.
16
Paper pickup roller (Paper feed tray4)
Feeds paper to the paper feed roller.
17
Paper feed roller 2 (Paper feed tray4)
Feeds paper to the paper transport section.
18
Transport roller 3 (Drive)
Transports paper from the paper feed roller 2 to the transport roller2.
19
Transport roller 3 (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
20
Separation roller (Paper feed tray4)
Separates paper to prevent double feed.
2 3 4 5
6
8
7
9 10
11
12
12
13
14
15
16
16
17
18
19
20
20
1
MX-DE28 N MAINTENANCE 3 – 1
MX-DE28 N
Service Manual
[3] MAINTENANCE
1. Maintenance list
X: Check (clean, replace or adjust as required) F: Clean : Replace : Adjust ✩: Lubricate
On greasing
Greasing is not always necessary for every maintenance. In the following cases, check and grease.
-
There are some noises.
-
Many jams occur frequently. (Check the jam history.)
Cleaning of the paper feed and paper transport system sensors and detectors
Cleaning of the paper feed and paper transport system sensors and detectors is not always necessary for every maintenance. In the following
case, check and clean.
case, check and clean.
-
A trouble or jam is generated because of the sensors or detectors. (Check the jam history.)
Torque limiter check and replacement
Torque limiter check or replacement is not always necessary for every maintenance. In the following cases, check and replace.
-
There are some noises.
-
Many jams occur frequently. (Check the jam history.)
Alcohol used for cleaning
Be sure to use ethanol for cleaning.
Unit work
sequence
sequence
Unit name
Parts work
sequence
Part name
When
calling
When
machine
cycle
Remarks
1
Tray 2 paper feed unit
1
Paper pickup roller
X
F
As a rough guide, these rollers should be replaced when
each tray paper feed counter reaches a value of 200K or
when one year has elapsed since the start of use.
each tray paper feed counter reaches a value of 200K or
when one year has elapsed since the start of use.
2
Paper feed roller
X
F
3
Separation roller
X
F
4
Transport roller 1
X
F
5
Transport roller 2
X
F
6
Torque limiter
X
X
7
Each sensor
X
X
---
Each paper guide
F
F
Clean with alcohol.
2
1CS drive unit
8
Each gear (grease)
X
X
When checking, apply to the specified positions.
UKOG-0299FCZZ(HANARL FL-955R)
UKOG-0299FCZZ(HANARL FL-955R)
9
Each shaft (grease)
X
X
When checking, apply to the specified positions.
UKOG-0307FCZZ(FLOIL G-313S)
UKOG-0307FCZZ(FLOIL G-313S)
3
Tray 3 paper feed unit
10
Paper pickup roller
X
F
As a rough guide, these rollers should be replaced when
each tray paper feed counter reaches a value of 200K or
when one year has elapsed since the start of use.
each tray paper feed counter reaches a value of 200K or
when one year has elapsed since the start of use.
11
Paper feed roller
X
F
12
Separation roller
X
F
13
Torque limiter
X
X
14
Each sensor
X
X
---
Each paper guide
F
F
Clean with alcohol.
4
Tray 4 paper feed unit
15
Paper pickup roller
X
F
As a rough guide, these rollers should be replaced when
each tray paper feed counter reaches a value of 200K or
when one year has elapsed since the start of use.
each tray paper feed counter reaches a value of 200K or
when one year has elapsed since the start of use.
16
Paper feed roller
X
F
17
Separation roller
X
F
18
Torque limiter
X
X
19
Each sensor
X
X
---
Each paper guide
F
F
Clean with alcohol.
5
Desk transport unit
20
Each gear (grease)
X
F
When checking, apply to the specified positions.
UKOG-0299FCZZ(HANARL FL-955R)
UKOG-0299FCZZ(HANARL FL-955R)
21
Each shaft (grease)
X
F
When checking, apply to the specified positions.
UKOG-0307FCZZ(FLOIL G-313S)
UKOG-0307FCZZ(FLOIL G-313S)
6
Level transport unit
22
Level transport roller R
X
F
23
Level transport roller L
X
F
24
Each sensor
X
X
7
Vertical transport unit
25
Transport roller 3
X
F
MX-DE28 N MAINTENANCE 3 – 2
2
1
1
7
4
3
5
22
23
24
7
7
7
6
7
24
24
25
11, 16
10, 15
10, 15
14, 19
12, 17
13, 18
14, 19
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