Sharp Printer AL-840 manuals

Sharp Printer AL-840 User Manual (31 pages)

Brand: Sharp | Category: Monoculars | Size: 1.02 MB |

English

Table of contents

SERVICE MANUAL

1

AL-800/840

1

[1] OPERATING PRINCIPLE

2

Scanner (reading) section

3

Fusing/paper exit section

3

Scanner (writing) section

3

Paper feed section

3

Image process section

3

2. Outline of operations

4

DATA FLOW DIAGRAM

5

(1) Outline

6

Paper feed roller

10

Separate sheet

10

Paper feed clutch lever

10

Clutch R sleeve

10

(2) Major parts

11

(3) Operation

12

C. Scanner (writing) section

13

(4) Operation

14

D. Image process section

15

(3) Major parts

17

(4) System diagram

20

(5) Operation

20

<2> Developing unit

21

<5> High voltage unit

21

Main charger brush

22

Residual toner

22

Aluminum layer

22

(Drum base)

22

OPC drum

22

Aluminum surface

23

Transfer roller

23

Toner attraction

25

E. Fusing/paper exit section

26

MCU(PCU) PWB POWER SUPPLY PWB

27

F. Drive section

28

G. Electrical section

29

MCU PWB BLOCK DIAGRAM

30

COPYRIGHT

31

1998 BY SHARP CORPORATION

31

Sharp devices