Sharp SF-2050, SF-C52 Service Manual

SERVICE MANUAL

CODE: 00ZSF2050TM/E

No.2

MODEL SF-2050
MODEL SF-C52

CONTENTS

[ 1 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[ 2 ] PRODUCT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

[ 3 ] OPTION SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

[ 4 ] PAPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

[ 5 ] COMPONENT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

[ 6 ] PROCESS SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

[ 7 ] DEVELOPING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

[ 8 ] PAPER FEED SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[ 9 ] TRANSPORT/FUSING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[10] HIGH VOLTAGE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[11] OPTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

[12] ADU UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

[13] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Parts marked with "!" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.

SHARP CORPORATION

This document has been published to be used for
after sales service only.
The contents are subject to change without notice.

CONTENTS

[ 1 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1. General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2. Target users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

3. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

(1) Compact body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

(2) Clean copy production wi th out cont am i nating environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

(3) High copy performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

(4) Adoption of modular st ru ct ur e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

(5) Service, maintenance, and installation enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

4. System outline (options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[ 2 ] PRODUCT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -1

1. Basic specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(1) Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(2) Copy method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(3) Kinds of originals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(4) Copy speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(6) Warmup time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(7) Multicopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

(8) Magnification ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

(9) Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

(10) Paper feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

(11) Developing method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(12) Charge method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(13) Transfer method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(14) Separation method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(15) Fusing method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(16) Cleaning method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(17) Light source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(18) Blanking areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(19) Automatic duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(20) Paper eject and finishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

(21) Additional features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

(22) Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

(23) Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

(24) Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

(25) Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

[ 3 ] COMPONENT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1. External view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

2. Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3. Internal view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

4. Clutches, solenoids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

5. SF-2035 sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

6. Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

7. Board list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

8. Duplex copy tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

9. Desk unit (SF-D20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

10. Desk unit (SF-D21) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

[ 4 ] PROCESS (Photocondor drum and cleaning unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

1. Basic theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

(1) Image forming process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

(2) Photoconductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

(3) Types of photoconductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

(4) Characteristics of photoconductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

2. SF-2035 basic process and structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

(1) Details of image forming process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

(2) Relationship between the OPC drum and light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

(3) Transition of photoconductor surface potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

(4) Photoconductor drum sensitivity correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

(5) Process control function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

3. Basic structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

[ 5 ] DEVELOPING UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

1. Basic theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

(1) Two-component developer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

(2) Two-component magnetic brush development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

(3) Developing bias voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

2. Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

[ 6 ] PAPER FEED UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

2. Basic configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

3. Basic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

(1) Manual paper feed operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

(2) Cassette paper feed operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

[ 7 ] TRANSPORT/FUSING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

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

2. Basic composition and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

(1) Transport section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

(2) Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

[ 8 ] HIGH VOLTAGE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

2. Basic composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

(1) Main (charging) corona – H i gh voltage transform er (MHVG ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

(2) Transfer corona – High vo ltage transformer (THVG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

(3) Separation corona – High vol ta ge t ra nsf or m er (SHVG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[ 9 ] OPTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

2. Basic composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

(1) Original table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

(2) Copy lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

(3) Mirror1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

(4) Lens (Fixed focus lens) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

(5) Lens home position sensor (LHPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

(6) No. 4, No. 5 mirror base hom e posit i on sensor (MBHPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(7) Lens base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(8) Lens slide shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(9) Lens drive wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(10) Mirror base C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(11) Mirror base C (No. 4, No. 5 mirrors) drive wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(12) Mirror motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(13) Mirror home position sensor (MHPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(14) Mirror base B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(15) Copy lamp unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(16) Thermal fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(17) Reflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(18) Exposure adjusting plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(19) Mirror base drive wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(20) Mirror base (No. 4, No. 5) drive motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(21) Lens drive motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(22) AE sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(23) Blank lamp operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

(24) Original size detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

3. Basic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

4. Optical system dirt correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

(1) Setting the reference value for optical system correcti on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

(2) Dirt correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

[10] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

1. System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

2. Main circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

(1) Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

(2) CPU (IC113) H8/570 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

(3) I/O (IC114) TE7750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

(4) RAM (IC115) X28C64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

(5) Decoder (IC139, IC138) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14

(6) Start/stop control circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15

(7) Heater lamp control circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-17

(8) Driver circuit (Solenoid , magnetic clutch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18

(9) Stepping motor drive circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18

(10) AE (Auto Exposure) sensor circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19

(11) Toner supply motor drive circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19

3. Operation circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19

<Key circuit> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19

(1) Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-19

(2) Key detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20

(3) System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20

<Display circuit> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21

(1) Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21

(2) Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21

4. LCD display circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

(1) Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

(2) CPU (IC222) µPD78213G-AB8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

(3) ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24

(4) Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24

(5) LCD controller (IC213) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-26

5. DC power circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-27

(1) Noise filter circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-27

(2) Rush current limiting circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-27

(3) Rectifying/smoothing circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28

(4) Invertor circuit (Forward-c onvertor system) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28

(5) Rectifying/smoothing ci r cui t in the secondary side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28

(6) Control circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-29

(7) Overcurrent protection circui t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-29

(8) Series regulator circuit (–20V syste m ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-29

(9) Chopper regulator ci r cui t (10 V, 5V sy stem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-29

(10) FW system output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-29

(11) Over voltage protection circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30

6. Desk circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-36

[11] Function of PPC communication system (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

1. General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

2. System A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

(1) Functions of System A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

3. System B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

(1) Functions and applicati ons of System B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

4. Communication interface PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9

[1] GENERAL DESCRIPTION

1. The SF-2050 is a high speed copier which allows copying of 50
sheets per minute, and first copy at the at the highest speed in the
class with remarkable copying efficiency.

2. Target users
Average copy volume: 20,000 ∼ 25,00 0 sh ee t s
Scope: 10,000 ∼ 60,000 sheet s

3. Characteristics of the product
(1) Improvements in the basic functions

• First copy: 2.7 sec

• Automatic duplex function (standard)

• Large capacity tray (3 trays + LCC), max. 4,550 sheets

(5,500 sheets in Japan)
Improved efficiency in duplex copy (Single → duplex ef­ficiency 75%)

• RADF and the staple sorter are optionally available to pro-

vide higher copy productivity.

(2) High copy volume

• Console design

• AICS (Active Image Control System) provided.

• Non-stop/non-slow-down copy (Japan)

• Toner supply during copying

• Paper supply to a non-active tray during copying

(3) Measures against environmental problems

• Low noise (Conforming to Blue Angel standards.)

• Low ozone 0.02mg/m or less

• Low power consumption, 15% down from the conventional

model (SF-9400)

(4) Improved manipulation

• Front access structure

• LCD display

(5) Options

• RADF: SF-A55 (New)

• 20-bin sorter: SF-S16 (Used in the SD-2060)

• 20-bin staple sorter: SF-S53 (Used in the SD-2060/SF-

2035)

• Large capacity tray

(LCC):

• Card type counter: SF-EA11 (Used in the SD-2060/SF-

• Password type

counter:

• Personal counter: SF-71A/B

SF-C52 (New)

2035)
SF-EA12 (Used in the SD-2060/SF-

2035)

20-b in sort er
(SF-S16)

Duplex reversing automatic
document feeder
(SF-A55)

Card type department control counter (SF-EA11)
Password type department control counter (SF-EA12)
Commander (SF-EA13)
Personal counter (SF-71A/B)

SD-2050

Japan

No. of paper feed tray
steps

Platen original size
detection

RADF Option Standard Option Standard

LCC Option (3,300)

Destination

Japan

SEC AU

SECL AL
SEEG GG
SEEG BG

SUK BK
SCA BA

SCNZ BE

SRS BE
SRH BE

STCL BE
Agent AE
Agent BE

4 trays (550) 3 trays (500) 3 trays (500) 3 trays (500)

SF-2050

Standard

(Shipped

separately

from the

20-bin staple sorter
(SF-S53)

Large capacity tray
(SF-C52)

US

✕✕✕

(3,000)

body)

SF-2050

EX1

Option (3,000) Option (3,000)

SF-2050

EX2

1 – 1

[2] PRODUCT SPECIFICATIONS

1. Basic specifications

(1) Type: Console
(2) Copying system: Dry, electrostatic transfer system
(3) Original Kinds: Sheet, book, cubic

Max. original size A3, 11 × 17
Original reference position Center left
Detection Japan, YES; outside Japan, NO
Detection size A3, B4, A4, A4R, B5, B5R

Option
Original load capacity 50 sheets

Original size A3 ∼ A5, 11 × 17 ∼ 5.5 × 8.5
Original replacement

speed

Original weight
(Excluding special
paper)

Mixed original feed Possible

(4) Copying speed

A3 28 28 27
B4 32 30 31
A4 (Portrait) 50 43 36
A4 (Landscape) 39 37 36
B5 (Portrait) 50 48 36
B5 (Landscape) 39 37 36
11 × 17 28 28 27

8.5 × 14 32 30 31

8.5 × 11 (Portrait) 50 43 36

8.5 × 11 (Landscape) 39 37 36

(Note) The speeds at enlargement/reduction are at the mag-

nification ratio of the lowest speed.

(5) First copy time about 2.7sec (paper feed port: tray 1)

First copy time at each paper feed port (sec)

Paper feed

port
Tray 1 2.7
Tray 2 2.9 Manual feed 2.9

Tray 3 3.1 LCC 2.8

(6) Warm-up time

Japan About 4 min
Outside Japan About 3 min

Pre-heat
Jam recovery

time

(7) Multi copy: max. 999 sheets

RADF (Standard except for
Japan/SEEG/SUK)

50 sheets/min (A4, 8.5 × 11)

Signal
mode

Duplex
mode

Normal

First copy

time

(Japan) 35 ∼ 128 g/cm
(Outside Japan) 50 ∼

128 g/cm

2

(Japan) 50 ∼ 110 g/cm
(Outside Japan) 50 ∼

110 g/cm

2

Reduction

(50%)

Paper feed

port

Tray 4

(Japan only)

YES (Selected by the key operator
program (P31).)

4 sec or less (Jam outside the fusing
section)

Enlargement

First copy

(200%)

time

3.3

(8) Copy magnification ratio

Fixed
magnification
ratio

AB series: 4R+4E: 200, 141, 122, 115,

100, 86, 81, 70, 50 %

Inch series:4R+4E: 200, 141, 129, 121,

100, 95, 77, 64, 50 %

Zoom range 50 ∼ 200% (151 steps in 1% increm ent)

(9) Exposure

(9)-1 Exposure system: Slit exposure by moving the optical

system (Fixed original table)
(9)-2 Exposure mode: Auto/Manual/Photo
(9)-3 Manual steps: 9 steps (Manual/Photo)

(10) Paper feed

(10)-1 Paper feed system: (Japan) 4 trays + multi manual feed

(Outside Japan) 3 trays + multi

manual feed

(For SEC/SECL, LCC is a standard

provision.)
(10)-2 Paper feed

capacity:

2

(10)-3 Details of the paper feed section

(Japan) 550 × 4 + 50

(Outside Japan) 500 × 3 + 50

AB series

2

Paper feed

Tray 2

Tray 1
Tray 3
Tray 4
(Japan only)

port

Paper feed

capacity

500 sheets
(500 sheet
in Japan)

500 sheets
(550
sheets in
Japan)

Paper size

A4, A4R,
B5, B5R,
B4, A3,
(*A5)

A4, A4R,
B5, B5R,
B4, A3

Paper

weight

52 ∼
80g/m
14-21 lbs

52 ∼ 80

2

, 14 ∼

g/m
21 lbs

2

,

Size

selection

Guide
change is
made by a
serviceman.

Guide
change is
made by a
serviceman.

Side/front

Front/
drawer
integrated

Front­drawer
integrated

Inch series

Paper feed

Tray 2 500 sheets

Tray 1
Tray 3

port

Paper feed

capacity

500 sheets

Paper size

8.5 × 11

8.5 × 11R

8.5 × 14
11 × 17
(*8.5 × 5.5)

8.5 × 11

8.5 × 11R

8.5 × 14
11 × 17

Paper

weight

52-80g/m
14-21 lbs

52-80g/m
14-21 lbs

Guide

2

change is
made by a
serviceman.

Guide

2

change is
made by a
serviceman.

Size

selection

Side/front

Front/
drawer
integrated

Front/
drawer
integrated

* For A5 (8.5" × 5.5"), the rear edge guide is required.

8.8" × 13" is feedable.

Manual feed section

Paper size

AB series: A3 ∼ A6R
Inch series: 11 × 17 ∼ 5.5 × 8.5
Multi paper feed: 56 ∼ 80 g/m2,

15 ∼ 21 lbs

Single paper feed:52 ∼ 128 g/m2,

Paper weight

15 ∼ 21 lbs
(When exceeding
104 g/m2,
A4 or smaller.)

Paper kinds

Standard paper, specified paper, special
paper, OHP film, Postcard, etc,

(Japan) A3, A4, A4R, B4, B5, B5R
(Outside Japan AB series)

Detection size

(Outside Japan inch series)

A3, B4, A4, A4R, A5

11 × 17, 8.5 × 12, 8.5 × 11,

8.5 × 11R, 8.5 × 5.5

2 – 1

(11) Developing system: Dry, two-component magnetic brush

development
(12) Charging system: (–) DC saw teeth electrode system
(13) Transfer system: (–) DC corotron system
(14) Separation system: (–) AC corotron system
(15) Fusing system: Heat roller system
(16) Cleaning system: Counter blade system
(17) Light source: Halogen lamp
(18) Void width

Void area Lead edge: 3mm or less
BAck surface void area Rear edge: about 3mm
Image loss Normal: 4mm or less

(19) Automatic duplex

Standard
Japan: A3, A4, A4R, B4, B5, B5R
Outside Japan AB series:

Size

Outside Japan inch series:

A3, A4, A4R, B4, B5

11 × 17, 8,5 × 14, 8.5 ×

11, 8.5 × 11R
Capacity 50 sheets (all sizes)
Paper weight 56 ∼ 80 g/m

2

(20) Paper exit/finishing

Paper exit tray capacity 250 sheets
Finishing

Option
20-bin sorter, 20-bin staple sorter

(21) Additional functions

Name Function Content

Automatic paper
selection (APS)

Japan: Yes
Outside Japan: Only with RADF
Japan: Yes

Automatic
magnification
selection (AMS)

Outside Japan: Only with RADF

During used of RADF,
AMS by scanning in
impossible. (PAT
prevention)

Shift copy YES

Shift width 9mm, 1/4 inch
(adjustable)

Dual page copy YES Enlargement is impossible.
Edge erase YES

Edge erase/center
erase/edge and center erase

Center erase YES
Cover copy YES

Covers/back covers/front and

rear covers
Inserts copy YES
OHP inserts copy YES
Job memory YES 9 kinds
Auditor YES 50 departments
Key operator

program
Communication

features

YES

YES

Bi-directional (The I/F PWB is

a service parts.)
Process control YES

For SUK, toner save mode is
Toner save mode YES

not available. For Japan,

serviceman mode selection.
Auto tray

switching
Installed tray

priority selection
Pre-heating YES

YES

YES (PAT. prevention)

Switching by key operator

program

(22) Power source Voltage: 100V, 110V, 120V, 127V,

200V, 220V, 220 ∼ 230V,
240V

Frequency: 50/60 Hz common

(23) Power consumption Max. power consumption:

Japan, 1500W (with options);
Outside Japan, 1920W (with options)

(24) External view W × D × H (mm)

750 × 660 × 950 (Glass top)
750 × 660 × 995 (OC cover top)
750 × 660 × 1137 (RADF top)

Occupying area W × D (mm)

1407 × 660 (with the paper exit tray,
when the manual feed is open.)

Weight:

131 kg (Body only)
145 kg (with RADF)

(25) Accessories

Packed with the main body (supply parts only)
OPC drum (installed to the body) × 1
Developer (1.0kg) × 1
Toner cartridge (0.93kg) × 1
Upper/lower heat roller (installed to the body) each × 1
Upper/lower fusing separation pawl (installed

to the body)
Upper/lower cleaning roller (lower cleaning

roller: installed to the body)

each × 1

each × 1

Cleaner blade (installed to the body) × 1
Waste toner bottle (installed to the body) × 1

2 – 2

2. Supply parts

1 SEC

No. Name Content Life Product name Packing

1 Drum OPC drum × 1 200K SF-250DR 10
2 Developer (Black) Developer (1.0kg) × 10 100K × 10 SD-360MD 1
3 Toner (Black) Toner cartridge (0.93kg) × 10 28K × 10 SD-360MT 1
4 Upper heat roller kit Upper heat roller × 1

Fusing separation pawl (Upper) × 4
Fusing gear × 1

5 Lower heat roller kit Lower heat roller × 1

Fusing separation pawl (Lower) × 4
6 Cleaner blade Cleaner blade × 10 100K × 10 SD-360CB 1
7 Upper cleaning roller Upper cleaning roller × 10 100K × 10 SF-250UR 1
8 Lower cleaning roller Lower cleaning roller × 10 100K × 10 SF-250LR 1
9 Waster toner bottle Waste toner bottle × 1 100K SF-250TB 5
10 200K maintenance kit SF-250CP × 5

(Drum separation pawl × 2)

(Charging plate unit × 1)

(CL side seal F/R × 1)

(DV side seal F/R × 1)

(Toner reception seal × 1)
11 Staple cartridge Staple cartridge × 5 5000 × 5 SD-LS20 10

The screen grid (200K), the charger wire (200K), the ozone filter (400K), and the toner reception seal (200K) are service parts.
The waste toner bottle (100K), and charging plate unit (200K), and the DV seal (400K) are also available as service parts.
* The developer is in common with the SD-2060/3062. This model uses one bag (100K).

2 SECL

No. Name Content Life Product name Packing

1 Drum OPC drum × 1 200K SF-250DR 10
2 Developer (Black) Developer (1.0kg) × 10 100K × 10 SD-360MD 1
3 Toner (Black) Toner cartridge (0.93kg) × 10 28K × 10 SD-360MT 1
4 Upper heat roller kit Upper heat roller × 1

Fusing separation pawl (Upper) × 4

Fusing gear × 1
5 Lower heat roller kit Lower heat roller × 1

Fusing separation pawl (Lower) × 4
6 100K PM kit Cleaner blade × 1

Waste toner bottle × 1

Upper cleaning roller × 1

Lower cleaning roller × 1
7 200K PM kit Drum separation pawl × 2

Charging plate unit × 1

Screen grid × 1

CL side seal F/R × 1

DV side seal F/R × 1

Toner reception seal × 1
8 Staple cartridge Staple cartridge × 5 5000 × 5 SD-LS20 10

* The developer is in common with the SD-2060/3062. This model uses one bag (100K).

400K SF-250UH 5

200K SF-250LH 5

200K SF-250CK 1

400K SF-250UH 5

200K SF-250LH 5

100K SF-250KA 1

200K SF-250KB 5

2 – 3

3 SEEG/SUK

No. Name Content Life Product name Packing

1 Drum OPC drum × 1 200K SF-250DM 10
2 Developer (Black) Developer (1.0kg) × 10 100K × 10 SD-360LD 1
3 Toner (Black) Toner cartridge (0.93kg) × 10 28K × 10 SD-360LT 1
4 Upper heat roller kit Upper heat roller × 1

5 Lower heat roller kit Lower heat roller × 1

6 100K PM kit Cleaner blade × 1

7 200K PM kit Drum separation pawl × 2

8 Staple cartridge Staple cartridge × 5 5000 × 5 SD-LS20 10

* The developer is in common with the SD-2060/3062. This model uses one bag (100K).

Fusing separation pawl (Upper) × 4

Fusing gear × 1

Fusing separation pawl (Lower) × 4

Waste toner bottle × 1

Upper cleaning roller × 1

Lower cleaning roller × 1

Charging plate unit × 1

Screen grid × 1

CL side seal F/R × 1

DV side seal F/R × 1

Toner reception seal × 1

400K SF-250UH 5

200K SF-250LH 5

100K SF-250KA 1

200K SF-250KB 5

4 Asia, Middle/South America

No. Name Content Life Product name Packing

1 Drum OPC drum × 1 200K SF-250DR 10
2 Developer (Black) Developer (1.0kg) × 10 100K × 10 SD-360CD 1
3 Toner (Black) Toner cartridge (0.93kg) × 10 28K × 10 SD-360CT 1
4 Upper heat roller kit Upper heat roller × 1

Fusing separation pawl (Upper) × 4

Fusing gear × 1
5 Lower heat roller kit Lower heat roller × 1

Fusing separation pawl (Lower) × 4
6 100K PM kit Cleaner blade × 1

Waste toner bottle × 1

Upper cleaning roller × 1

Lower cleaning roller × 1
7 200K PM kit Drum separation pawl × 2

Charging plate unit × 1

Screen grid × 1

CL side seal F/R × 1

DV side seal F/R × 1

Toner reception seal × 1
8 Staple cartridge Staple cartridge × 5 5000 × 5 SD-LS20 10

* The developer is in common with the SD-2060/3062. This model uses one bag (100K).

400K SF-250UH 5

200K SF-250LH 5

100K SF-250KA 1

200K SF-250KB 5

2 – 4

5 SCA, SCNZ, Middle East, Africa

No. Name Content Life Product name Packing

1 Drum OPC drum × 1 200K SF-250DM 10
2 Developer (Black) Developer (1.0kg) × 10 100K × 10 SD-360LD 1
3 Toner (Black) Toner cartridge (0.93kg) × 10 28K × 10 SD-360LT 1
4 Upper heat roller kit Upper heat roller × 1

5 Lower heat roller kit Lower heat roller × 1

6 100K PM kit Cleaner blade × 1

7 200K PM kit Drum separation pawl × 2

8 Staple cartridge Staple cartridge × 5 5000 × 5 SD-LS20 10

* The developer is in common with the SD-2060/3062. This model uses one bag (100K).

Fusing separation pawl (Upper) × 4

Fusing gear × 1

Fusing separation pawl (Lower) × 4

Waste toner bottle × 1

Upper cleaning roller × 1

Lower cleaning roller × 1

Charging plate unit × 1

Screen grid × 1

CL side seal F/R × 1

DV side seal F/R × 1

Toner reception seal × 1

400K SF-250UH 5

200K SF-250LH 5

100K SF-250KA 1

200K SF-250KB 5

3. Environmental conditions

The following environmental conditions should be preserved for as­suring copy quality and proper machine operations.

1 Standard conditions

Temperature, 20 ∼ 25 C; humidity, 65 ±5% RH

2 Operational conditions

Humidity (RH)

3 Transit conditions

Humidity (RH)

4 Supply store conditions

Humidity (RH)

2 – 5

[3] OPTION SPECIFICATIONS

1. SF-A55

Name Duplex reversing automatic document feeder
Document feed system Continuous, automatic feed
Document exit system Face up exit
Document transport system One-belt, (center reference)
Document set direction Face up
Document size A3 ∼ B5
Document weight Thin paper mode, 35 ∼ 50g/m2;

Document set quantity Max. 50 sheets (35 ∼ 80g/m2)

Functions Document reversing (Duplex documents), SDF/ADF mode

Power source Supplied from the copier body.
Dimensions 595mm (W) × 525mm (D) × 130mm (H) (without tray)
Weight About 150 kg

2. SF-S16

Name 20-bin sorter
No. of bins 20 bins
Storing system Copy face up
Storing capacity of each bin Max. 50 sheets (Top bin, 100 sheet) Collatable paper

Power source Supplied from the copier body.
Dimensions 550mm (W) × 519mm (D) × 924m (H)
Weight About 26.5kg

standard mode, 51 ∼ 128g/ m

(Max. 30 for A3 and 11" × 17")

selection, mixed paper feed, random paper feed

size/weight

2

3. SF-S53

4. SF-C52

Name Staple sorter
No. of bins 21 bins
Storing system Face up
Storing capacity of each bin Max. 50 sheets (Top bin, 250 sheet) Collatable paper

size/weight
No. of sheets staplable 50 sheets (80g/m2 paper)
Power source Supplied from the copier body.
Dimensions 475mm (W) × 597mm (D) × 995mm (H)
Weight About 42.1kg

Name Large capacity cassette (LCC)
Paper feed capacity 3,000 sheets
Paper feed size A4/B5
Paper weight 52 ∼ 80g/m
Power source Supplied from the copier body.
Dimensions 294mm (W) × 536mm (D) × 523mm (H)
Weight 26kg

2

3 – 1

[4] PAPER

1. Standard paper for tray feed

Name Size Type

A3 SF-3AS2 250 sheets
B4 SF-4BS2 500 sheets

Standard type

General type
paper (thick)

Thick paper

Recycled
paper

Color paper

A4 SF-4AS2 500 sheets

SF-5BS2 (Horizontal)

B5

SF-5Bs3 (Vertical)
A5* SF-5AS2 250 sheets
B6* SF-6BS2 250 sheets

A3 SF-3AM2 250 sheets
B4 SF-4BM3 500 sheets

SF-4AM2 (Horizontal)

A4

SF-4AM3 (Vertical)

SF-5BM2 (Horizontal)

B5

SF-5BM3 (Vertical)

A3 SF-3AH
B4 SF-4BH
A4 SF-4AH
B5 SF-5BH
A3 SF-3AR1
B4 SF-4BR1
A4 SF-4AR1
B5 SF-5BR1

SF-4B1R (Pink)

B4

SF-4B1B (Blue)

SF-4B1G (Green)

SF-4A1R (Pink)

SF-4A1Y (Cream)

A4

SF-4A1B (Blue)

SF-4A1G (Green)

SF-5B1R (Pink)

SF-5B1Y (Cream)

B5

SF-5B1B (Blue)

SF-5B1G (Green)

Quanty in one

bag

500 sheets
each

500 sheets
each

500 sheets
each

250 sheets
each

500 sheets
each

500 sheets
each

500 sheets
each

500 sheets
each

● <Note> ● - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

• Be sure to use the above paper on the tray. For the paper with

mark "*," use in the manual feed mode.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ●

2. Special paper (Manual feed only)

Name Size Type

Postcards A4 SF-4A5C 100 sheets
Second original

paper
Label paper A4 SF-4A3F 100 sheets

OHP film A4 SF-4A6F 100 sheets

B4 SF-4B2A

A4 SF-4A2A

No. of sheets in one

bag

500 sheets each

4 – 1

[5] PRODUCT VIEW

1. External view

1011 7

12

1 8

2. Internal view

6 2

9

6

15

3

4

5

7

3

13

Operation panel

1

Manual feed guide

3

Manual feed tray

5

Original cover

7

Original table

9

Contrast adjusting knob

G

Tray

I

Power switch

K

142

Front cover

2

Manual feed additional tray

4

Toner cover

6

Original stocker

8

Clip tray

F

Copy tray

H

Paper feed pressure

J

release button

Roller rotation knob

1

Transport section

3

open/close lever
Waste toner box

5

OPC drum

7

Transport section

2

adjustment knob
Duplex tray

4

Fusing section

6

54 1

5 – 1

3. Operation panel

1

2

3

4

5

6 7

13 141516

TRAN SPARENCY
INSERTS

SHFT

INSERT S

SORTER ORIGINAL TO COPY

SORT

ATAPLE
SORT

GROUP

MARGIN

COVERS/

89

Contrast adjustment knob

1

Edge erase key/display lamp

5

Duplex key/display lamp

9

Message forward scroll key

I

Tray selection key

M

Clear (C) key

Q

ERASE

1 12

(ORIGINALS)
EVEN NUMBER
ODD NUMBER

2

11

2

PRE-COUNT
ORIGINALS

DUAL PAGE
COPY

2

AUTO IMAGE

REDUCTION

ENLARGEMENT

100%

ZOOM

EXPOSURE

ARTO
MANUAL

DARK

LIGHT

PHOTO

11 17

12

OHP insert paper insertion

2

key/display lamp
Dual paper copy key/display

6

lamp
Zoom key

F

Operation guide key/display

J

lamp
Interruption key/display lamp

N

Start key/Start lamp

R

2410

SCROLL DISPLAY

INFORMATION

TRAY SELECT

PROGRAM

P

CLEAR ALL

CA

INTERRUPT

1

4

7

AUDIT CLEAR

18 19 20 21 22 23

Cover/insert paper insertion

3

key/display lamp
Automatic magnification ratio

7

selection key/display lamp
Copy density key

G

Program key

K

Numeric key

O

Copy quantity display

S

32

START

65

98

0/

C

Shift key/display lamp

4

Sort key/display lamp

8

Reduction

H

All clear key

L

Zero/department count end

P

key
Message screen

T

5 – 2

4. Internal structure (Japan model)

19

20
27

23

26

21

25
28
24

22

48

49
50

51
46
16

14

3

2

1

468710911

15

18

175

47

12

34
35
36

37

38

39
40
41

42

43

44

45

32

30

13
32

32

32

32

29

31

33

No. 2 mirror

1

Lens unit

5

No. 4 mirror

9

Transport roller (upper)

I

Drum separation pawl

M

Upper heat roller

Q

Upper separation pawl

U

manual take-up roller

Y

Large cassette tray unit paper

]

feed roller
No. 2 tray take-up roller

a

No. 3 tray paper feed roller

e

No. 4 tray paper feed reverse

i

roller
Duplex section paper feed

m

roller

No. 3 mirror

2

Main charger unit

6

No. 5 mirror

F

Transfer charger

J

Cleaner unit

N

Lower heat roller

R

Upper cleaning roller

V

Manual paper feed roller

Z

No. 1 tray take-up roller

^

No. 2 tray paper feed roller

b

No. 3 tray paper feed reverse

f

roller
Process control sensor

j

Duplex section paper feed

n

reverse roller

No. 1 mirror

3

Blank lamp

7

Developing unit toner box

G

Photoconductor drum

K

Suction unit

O

Heater lamp

S

Fusing thermistor

W

Manual separation roller

[

No. 1 tray paper feed roller

_

No. 2 tray paper feed reverse

c

roller
No. 4 tray take-up roller

g

Drum marking sensor

k

Duplex section take-up roller

o

5 – 3

Copy lamp

4

No. 6 mirror

8

Developing unit

H

Separation charger

L

Suction belt

P

Lower separation pawl

T

Paper exit separation gate

X

Resist roller

\

No. 1 tray paper feed reverse

‘

roller
No. 3 tray take-up roller

d

No. 4 tray paper feed roller

h

Lower cleaning roller

l

5. Unit

4

1

3

2

6

8

7

Process unit

1

Developing unit

5

500-sheet tray unit

9

9

5

10

Suction frame unit

2

Toner hopper unit

6

Paper feed unit

F

Fusing unit

3

Transport unit

7

Optical unit

4

Center tray unit (ADU)

8

5 – 4

6. Clutches and solenoids

1619 21 913 1517 20

11
12

10

Signal name Part name Function and operation Remark

CPFC1 No. 1 cassette paper feed clutch No. 1 tray paper feed roller rotation

1

CPFS1 No. 1 cassette paper feed solenoid No. 1 tray take-up roller rotation

2

CPFC2 No. 2 cassette paper feed clutch No. 2 tray paper feed roller rotation

3

CPFS2 No. 2 cassette paper feed solenoid No. 2 tray take-up roller rotation

4

CPFC3 No. 3 cassette paper feed clutch No. 3 tray paper feed roller rotation

5

CPFS3 No. 3 cassette paper feed solenoid No. 3 tray take-up roller rotation

6

CPFC4 No. 4 cassette paper feed clutch No. 4 tray paper feed roller rotation Japan only

7

CPFS4 No. 4 cassette paper feed solenoid No. 4 tray take-up roller rotation Japan only

8

MPFS Manual feed solenoid Manual feed take-up roller pressing

9

DPFWS DP paper feed weight plate solenoid Duplex paper holding plate driving

F

DPFC Duplex paper feed clutch Duplex paper feed roller rotation

G

DTRC Duplex paper transport clutch Duplex paper transport roller rotation

H

PSPS Separation solenoid Paper separation solenoid driving

I

TRC3 Paper entry roller clutch

J

RRC Resist roller clutch Resist roller driving

K

CURLRC Curl correction clutch Curl correction section driving

L

HRS Heat roller solenoid Heat roller pressing

M

TRC1 Transport clutch 1 Transport roller rotation

N

DGS Duplex gate solenoid Duplex gate ON/OFF

O

TRC2H Transport clutch 2 (High speed) Transport roller rotation

P

TRC2L Transport clutch 2 (Low speed) Transport roller rotation

Q

Paper entry roller driving from large capacity tray
(LCC)

14

1
2

18

3
4

5
6

7
8

5 – 5