Sharp sf-1020 ユーザーズマニュアル

1-8. Transport roller . . . . . . . . . . . . . . . . . . . . . 6-3

1-9. Lower paper feed roller/take-up roller . . . 6-3

2. Transport unit . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

2-1. Resist roller, transfer roller . . . . . . . . . . . . 6-3

2-2. Transport belt . . . . . . . . . . . . . . . . . . . . . . 6-4

3. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

3-1. Fusing unit removal . . . . . . . . . . . . . . . . . . 6-5

3-2. Heater lamp replacement . . . . . . . . . . . . . 6-5

3-3. Upper heat roller ass’y removal . . . . . . . . 6-5

3-4. Upper separation pawl replacement . . . . . 6-6

3-5. Lower heat roller replacement . . . . . . . . . 6-6

3-6. Lower separation pawl replacement . . . . . 6-6

3-7. Thermistor/thermostat removal . . . . . . . . . 6-7

4. Optical system . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

1) Copy lamp replacement . . . . . . . . . . . . . . 6-7

2) Mirror base wire replacement and

adjustment . . . . . . . . . . . . . . . . . . . . . . . . 6-7

3) No. 2/3 mirror unit (mirror base B)

installation (Mirror base B positioning) . . 6-10

4) Copy lamp unit installation

(Mirror base A positioning) . . . . . . . . . . . 6-11

5) No. 4/5 mirror unit (mirror base C)

replacement . . . . . . . . . . . . . . . . . . . . . . 6-11

6) Lens wire replacement . . . . . . . . . . . . . . 6-13

7) Lens unit replacement . . . . . . . . . . . . . . 6-15

5. High voltage section . . . . . . . . . . . . . . . . . . . . 6-16

5-1. Main charger (MC) unit . . . . . . . . . . . . . . 6-16

5-2. Transfer/separation charger (TC/SC)

unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

6. Process section . . . . . . . . . . . . . . . . . . . . . . . 6-17

6-1. Process unit . . . . . . . . . . . . . . . . . . . . . . 6-17

6-2. Waste toner bottle replacement

(required when waste toner full detection/
maintenance) . . . . . . . . . . . . . . . . . . . . . 6-18

6-3. Drum (Replace every 50K copies) . . . . . 6-19

6-4. Blank lamp unit

(Clean every 50K copies.) . . . . . . . . . . . 6-19

6-5. Discharge lamp unit

(Clean every 50K copies.) . . . . . . . . . . . 6-19

6-6. Cleaner blade

(Replace every 50K copies.) . . . . . . . . . . 6-20

6-7. Drum separation pawl

(Replace every 50K copies.) . . . . . . . . . . 6-20

6-8. Process control PWB (Clean the sensor

section every 50K copies.) . . . . . . . . . . . 6-20

6-9. Drum mark sensor PWB (Clean the sensor

section every 50K copies.) . . . . . . . . . . . 6-20

6-10. Toner reception seal (Replace every 50K

copies.) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

7. Developing section . . . . . . . . . . . . . . . . . . . . . 6-20

A. DV side seals F/R replacement

(Replace every 120K copies.) . . . . . . . . . 6-20

B. DB blade replacement

(Replace every 120K copies.) . . . . . . . . 6-21

C. V ring attachment . . . . . . . . . . . . . . . . . . 6-21

D. Note for toner hopper drive gear (31T)

and stirring shaft attachment . . . . . . . . . 6-21

G. Developing unit color identification . . . . . 6-22

8. Operation panel/intermediate cabinet . . . . . . . 6-22

9. Frame major parts . . . . . . . . . . . . . . . . . . . . . . 6-22

9-1. Cooling fan motor replacement . . . . . . . 6-22

9-2. Power unit . . . . . . . . . . . . . . . . . . . . . . . . 6-23

9-3. Tray size detecting PWB . . . . . . . . . . . . 6-23

9-4. Main PWB unit . . . . . . . . . . . . . . . . . . . . 6-24

9-5. AC power PWB . . . . . . . . . . . . . . . . . . . . 6-24

9-6. Ozone filter (Check every 50K copies,

and clean every 100K copies.) . . . . . . . . 6-24

10. Multi paper feed unit (SF-MF15: option) . . . . . 6-25

10-1. Separation roller . . . . . . . . . . . . . . . . . . . 6-25

10-2. Take-up roller/paper feed roller . . . . . . . 6-25

11. ADU (SF-1120 only) . . . . . . . . . . . . . . . . . . . . 6-26

12. Paper feed unit

(SF-CM15, SF-CM16, option) . . . . . . . . . . . . . 6-27

[7]

ADJUSTMENTS

. . . . . . . . . . . . . . . . . . . . . . . . 7-1

1. Developing section . . . . . . . . . . . . . . . . . . . . . . 7-1

1-1. Developing doctor clearance

adjustment . . . . . . . . . . . . . . . . . . . . . . . . 7-1

1-2. Developing magnet roller main pole

position adjustment . . . . . . . . . . . . . . . . . . 7-1

2. Optical system . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

2-1. Adjustment items . . . . . . . . . . . . . . . . . . . 7-2

2-2. Note for adjustments . . . . . . . . . . . . . . . . 7-3

2-3. Adjustment of each section . . . . . . . . . . . 7-4

A. Lens reference position adjustment . . . . . 7-4

B. No.4/5 mirror reference position

adjustment . . . . . . . . . . . . . . . . . . . . . . . . 7-4

C. Vertical copy magnification ratio

adjustment . . . . . . . . . . . . . . . . . . . . . . . . 7-5

D. Resolution adjustment

(Focus adjustment) . . . . . . . . . . . . . . . . . . 7-6

E. Horizontal copy magnification ratio

adjustment . . . . . . . . . . . . . . . . . . . . . . . . 7-8

F. Comparison table of lens values and

simulation input values . . . . . . . . . . . . . . . 7-9

G. Vertical skew adjsutment . . . . . . . . . . . . 7-10

H. Horizontal skew adjustment . . . . . . . . . . 7-10

Center shift adjustment . . . . . . . . . . . . . . 7-12

Exposure balance adjustment . . . . . . . . 7-12

K. Copy lead edge adjustment . . . . . . . . . . 7-13

2-4. Original detecting section . . . . . . . . . . . . 7-15

A. Original detecting arm unit adjustment . . 7-15

B. Original detecting level adjustment . . . . 7-16

2-5. Copy density adjustment . . . . . . . . . . . . 7-17