Sharp MX-DE20 Service Manual ▷ View online
MX-DE20 EXTERNAL VIEW AND INTERNAL STRUCTURE 2 – 4
4. Roller
No.
Name
Function/operation
1
Paper pickup roller1(Paper feed tray2)
Feeds paper to the paper feed roller.
2
Paper feed roller1(Paper feed tray2)
Feeds paper to the paper transport section.
3
Transport roller 1 (Drive)
Transports paper from the paper feed roller to the main unit.
4
Transport roller 1 (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
5
Separation roller1(Paper feed tray2)
Separates paper to prevent double feed.
6
Transport roller 2 (Drive)
Transports paper from the paper feed roller to the main unit.
7
Transport roller 2 (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
8
Transport roller 3 (Drive)
Transports paper from the paper feed roller 2 to the transport roller2.
9
Transport roller 3 (Idle)
Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.
10
Level transport roller R (Drive)
Transports paper from the level transport roller L to the transport roller2.
11
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.
12
Level transport roller L (Drive)
Transports paper from the paper feed roller 3 to the level transport roller R.
13
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.
14
Paper feed roller2 (Paper feed tray4)
Feeds paper to the paper transport section.
15
Separation roller (Paper feed tray4)
Separates paper to prevent double feed.
16
Paper pickup roller (Paper feed tray4)
Feeds paper to the paper feed roller.
17
Paper feed roller3 (Paper feed tray3)
Feeds paper to the paper transport section.
18
Separation roller (Paper feed tray3)
Separates paper to prevent double feed.
19
Paper pickup roller (Paper feed tray3)
Feeds paper to the paper feed roller.
MX-DE20 MAINTENANCE 3 – 1
[3] MAINTENANCE
1. Maintenance list
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.)
For the part code of grease to be used, refer to [15] “Tool List” in service manual (00ZMX3640/S1E).
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.)
For the part code of grease to be used, refer to [15] “Tool List” in service manual (00ZMX3640/S1E).
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
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.
• A trouble or jam is generated because of the sensors or detectors. (Check the jam history.)
• 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.)
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.)
Unit work
sequence
Unit name
Parts
work
sequence
Part name
When
calling
When
machine
cycle
Remarks
1
Tray 2 paper feed unit
1
Paper pickup roller
As a rough guide, these rollers should be replaced when
each tray paper feed counter reaches a value of 100K or
when one year has elapsed since the start of use.
2
Paper feed roller
3
Separation roller
4
Transport roller 1
5
Torque limiter
As a rough guide, the torque limiter should be replaced
when each tray paper feed counter reaches a value of 100K.
6
Each sensor
---
Each paper guide
Clean with alcohol.
2
1CS drive unit
7
Each gear (grease)
When checking, apply to the specified positions.
HANARL FL-955R
8
Each shaft (grease)
When checking, apply to the specified positions.
FLOIL G-313S
3
Tray 3 paper feed unit
9
Paper pickup roller
As a rough guide, these rollers should be replaced when
each tray paper feed counter reaches a value of 100K or
when one year has elapsed since the start of use.
10
Paper feed roller
11
Separation roller
12
Torque limiter
As a rough guide, the torque limiter should be replaced
when each tray paper feed counter reaches a value of 100K.
---
Each sensor
---
Each paper guide
Clean with alcohol.
4
Tray 4 paper feed unit
13
Paper pickup roller
As a rough guide, these rollers should be replaced when
each tray paper feed counter reaches a value of 100K or
when one year has elapsed since the start of use.
14
Paper feed roller
15
Separation roller
16
Torque limiter
As a rough guide, the torque limiter should be replaced
when each tray paper feed counter reaches a value of 100K.
---
Each sensor
---
Each paper guide
Clean with alcohol.
5
Level transport unit
17
Level transport roller R
18
Level transport roller L
6
Desk transport unit
19
Transport roller 2
20
Transport roller 3
//
: Check (clean, replace or adjust as required)
: Clean
/
:Replace
/
/
: Adjust
/
: Lubricate
MX-DE20 MAINTENANCE 3 – 2
Alcohol used for cleaning
Be sure to use ethanol for cleaning.
Be sure to use ethanol for cleaning.
MX-DE20 MAINTENANCE 3 – 3
2. Each unit disassembly
A. Tray paper feed section
(1) Paper feed tray
1) Pull out the paper feed tray, and lift it to remove.
(2) Tray paper feed unit
1) Remove the paper feed tray.
2) Remove the right door unit.
2) Remove the right door unit.
3) Remove the paper guide.
4) Disconnect the connector, and remove the tray paper feed
unit.
No.
Name
1
Paper feed tray
2
Tray paper feed unit
2
1
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