MX-DE28 (serv.man2). Service Manual. - Sharp Copying Equipment Service Manual (repair manual). Page 10

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MX-DE28  MAINTENANCE  3 – 1
MX-DE28
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. 
-
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
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.
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)
9
Each shaft (grease)
X
X
When checking, apply to the specified positions.
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.
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.
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)
21
Each shaft (grease)
X
F
When checking, apply to the specified positions.
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
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