SHARP Sf2218 Service Manual

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SERVICE MANUAL

CODE: 00ZSF2218/A1E

MODEL SF-2218

CONTENTS

[ 1 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 1

[ 2 ] PRODUCT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 1

[ 3 ] PRODUCT VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 1

[ 4 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 – 1

[ 5 ] DESCRIPTION ON EACH SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 – 1

[ 6 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 – 1

[ 7 ] ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 – 1

[ 8 ] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 – 1

[ 9 ] SELF DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 – 1

[10] MEMORY TROUBLES, FLOWCHART FOR REPLACEMENT OF

MAIN CONTROL PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 – 1

[11] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 – 1

[12] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 – 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.

This document has been published to be used

SHARP CORPORATION

for after sales service only. The contents are subject to change without notice.

Contents

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

1. Product features . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2. System configuration (op tions) . . . . . . . . . . . . . 1-1

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

1. Basic specifications . . . . . . . . . . . . . . . . . . . . . . 2-1

2. Description of each section . . . . . . . . . . . . . . . . 2-2

3. Supply parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

4. Optional specifications . . . . . . . . . . . . . . . . . . . 2-3

(1) Automatic document feed er (ADF) . . . . . . 2-3

(2) 10-bin sorter . . . . . . . . . . . . . . . . . . . . . . . 2-3

(3) 10-bin staple sorter (10-bin SS) . . . . . . . . 2-4

(4) Exclusive-use desk . . . . . . . . . . . . . . . . . . 2-4

[3] PRODUCT VIEWS . . . . . . . . . . . . . . . . . . . . . . 3-1

1. External view and internal structure . . . . . . . . . 3-1

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

3. Clutches, solenoi ds, and m ot ors . . . . . . . . . . . . 3-3

4. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

5. Sensors and switches . . . . . . . . . . . . . . . . . . . . 3-5

6. Rollers, mirrors, etc. . . . . . . . . . . . . . . . . . . . . . 3-6

[4] UNPACKING AND INSTALLATION . . . . . 4-1

1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

(1) Environment . . . . . . . . . . . . . . . . . . . . . . . 4-1

(2) Space around the machine . . . . . . . . . . . . 4-2

(3) Installation base . . . . . . . . . . . . . . . . . . . . 4-2

(4) Power source . . . . . . . . . . . . . . . . . . . . . . 4-2

(5) Grounding wire connection . . . . . . . . . . . . 4-2

3. Optical system lock release . . . . . . . . . . . . . . . . 4-3

A. No. 2/3 mirror unit lock rel ease . . . . . . . . . 4-3

B. Lens and No. 4/5 mirror unit lock release . 4-3

4. Charger cleaning . . . . . . . . . . . . . . . . . . . . . . . . 4-3

A. Main charger unit electrode cleaning . . . . 4-3

5. Developing unit setting . . . . . . . . . . . . . . . . . . . 4-4

A. Developing unit setting . . . . . . . . . . . . . . . 4-4

6. Toner density sensor level a djustment . . . . . . . 4-5

A. Developing unit level adjus tment . . . . . . . 4-5

7. Accessory installation . . . . . . . . . . . . . . . . . . . . 4-5

A. Copier tray installation . . . . . . . . . . . . . . . 4-5

8. Toner supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

9. Center shift adjustment . . . . . . . . . . . . . . . . . . . 4-7

10. Label attachment . . . . . . . . . . . . . . . . . . . . . . . . 4-7

A. Label attachment . . . . . . . . . . . . . . . . . . . 4-7

[5] DESCRIPTIONS OF EACH SECTION . . 5-1

1. Paper feed section . . . . . . . . . . . . . . . . . . . . . . 5-1

1) General descriptions . . . . . . . . . . . . . . . . . 5-1

2) Basic operations . . . . . . . . . . . . . . . . . . . . 5-1

2. Developing section . . . . . . . . . . . . . . . . . . . . . . 5-2

1) General descriptions . . . . . . . . . . . . . . . . . 5-2

2) Basic composition . . . . . . . . . . . . . . . . . . . 5-2

3) Basic operations . . . . . . . . . . . . . . . . . . . . 5-3

3. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

1) General description . . . . . . . . . . . . . . . . . 5-3

2) Basic operations . . . . . . . . . . . . . . . . . . . . 5-6

4. Copy process . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

1) Photoconductor . . . . . . . . . . . . . . . . . . . . 5-8

2) Process diagram . . . . . . . . . . . . . . . . . . . . 5-9

3) Details of image forming process . . . . . . 5-10

4) Transition of photoconductor surface

potential . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

5) Photoconduct or drum sensitivi t y

correction . . . . . . . . . . . . . . . . . . . . . . . . 5-14

6) Process control function . . . . . . . . . . . . . 5-14

5. TRANSPORT/FUSING SECTION . . . . . . . . . 5-16

1) General . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

2) Basic compositi on and functions . . . . . . 5-16

6. Fusing paper exit section . . . . . . . . . . . . . . . . 5-16

7. High voltage section . . . . . . . . . . . . . . . . . . . . 5-17

1) General . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

2) Basic composition . . . . . . . . . . . . . . . . . . 5-17

[6] DISASSEMBLY AND ASSEMBLY . . . . . . 6-1

1. Paper feed unit . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

1-1. Paper feed unit . . . . . . . . . . . . . . . . . . . . . 6-1

1-2. Paper feed roller ass’y removal . . . . . . . . 6-1

1-3. PS front roller ass’y . . . . . . . . . . . . . . . . . 6-2

1-4. Separation roller . . . . . . . . . . . . . . . . . . . . 6-2

1-5. Paper feed roller, take-up roller . . . . . . . . 6-2

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

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

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

3. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

3-1. Fusing unit removal . . . . . . . . . . . . . . . . . 6-4

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

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

3-4. Upper separation pawl replacement . . . . . 6-5

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

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

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

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

1) Copy lamp replaceme nt . . . . . . . . . . . . . . 6-6

2) Mirror ba se wi re replacement an d

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

3) No. 2/3 mirror unit (mirror base B) installation (Mirror base B positioning) . . . 6-9

4) Copy lamp unit ins tallation

(Mirror base A positioning) . . . . . . . . . . . 6-10

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

replacement . . . . . . . . . . . . . . . . . . . . . . 6-10

6) Lens wire replacemen t . . . . . . . . . . . . . . 6-12

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

5. High voltage section . . . . . . . . . . . . . . . . . . . . 6-15

5-1. Main charger (MC) unit . . . . . . . . . . . . . . 6-15

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

unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

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

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

6-2. Waste toner bottle replacement

(required when waste toner full detection/

maintenance) . . . . . . . . . . . . . . . . . . . . . 6-17

6-3. Drum (Replace every 60K copies) . . . . . 6-18

6-4. Blank lamp unit

(Clean every 60K copies.) . . . . . . . . . . . 6-18

6-5. Discharge lamp unit

(Clean every 60K copies.) . . . . . . . . . . . 6-19

6-6. Cleaner blade

(Replace every 60K copies.) . . . . . . . . . . 6-19

6-7. Drum separation pawl

(Replace every 60K copies.) . . . . . . . . . . 6-19

6-8. Process control PWB (Clean the sensor

section every 60K copies.) . . . . . . . . . . . 6-19

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

section every 60K copies.) . . . . . . . . . . . 6-19

6-10. Toner reception seal (Replace every 60K

copies.) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

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

A. DV side seals F/R repla cem ent

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

B. DB blade replacement

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

C. V ring attachment . . . . . . . . . . . . . . . . . . 6-20

D . Note for to ner hopper drive g ear (31T)

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

8. Operation panel/interm ediate cabinet . . . . . . . 6-21

9. Frame major parts . . . . . . . . . . . . . . . . . . . . . . 6-21

9-1. Cooling fan motor replacement . . . . . . . . 6-21

9-2. Power unit . . . . . . . . . . . . . . . . . . . . . . . . 6-22

9-3. Tray size detecting PWB . . . . . . . . . . . . 6-22

9-4. Main PWB unit . . . . . . . . . . . . . . . . . . . . 6-23

9-5. AC power PWB . . . . . . . . . . . . . . . . . . . . 6-23

9-6. Ozone filter (Check every 60K copies,

and clean every 300K copies.) . . . . . . . . 6-23

10. Multi paper feed unit . . . . . . . . . . . . . . . . . . . . 6-24

10-1. Separation roller . . . . . . . . . . . . . . . . . . . 6-24

10-2. Take-up roller/paper feed roller . . . . . . . 6-24

[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 posi tion adjustment . . . . . 7-4

B. No.4/5 mirror reference position

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

C . Vertical copy magnificatio n ratio

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

D . Resolution adjustment

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

E. Horizontal copy magnification rat i o

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

F. Comparison table of lens value s and

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

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

H. Horizontal skew adj ustm ent . . . . . . . . . . 7-10

I . Center shift adjustm ent . . . . . . . . . . . . . . 7-12

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

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

2-4. Copy density adjustment . . . . . . . . . . . . 7-16

2-5. Process section adjustment . . . . . . . . . . 7-20

[8] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

2. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

3. Operating procedur e . . . . . . . . . . . . . . . . . . . . . 8-1

4. List of simulations . . . . . . . . . . . . . . . . . . . . . . . 8-2

5. Details of simulations . . . . . . . . . . . . . . . . . . . . 8-3

6. User simulation . . . . . . . . . . . . . . . . . . . . . . . 8-16

(1) Functions which can be set and

canceled by the user simulation . . . . . . . 8-16

(2) User simulation . . . . . . . . . . . . . . . . . . . 8-16

(3) User simulation code table . . . . . . . . . . . 8-17

(4) Department counter set ting content

(Set with user program P10 ∼ P15) . . . . 8-17

[9] SELF DIAGNOSTICS . . . . . . . . . . . . . . . . . . . 9-1

1. Summary/purpose . . . . . . . . . . . . . . . . . . . . . . . 9-1

2. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

3. Clearing the self diag display . . . . . . . . . . . . . . 9-1

[10] SERVICING AT MEMORY TROUBLE

AND MAIN CONTROL PWB REPLACEMENT

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

2. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

3. Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

4. Set value recording sheet . . . . . . . . . . . . . . . . 10-3

5. Memory simulation list . . . . . . . . . . . . . . . . . . . 10-4

. . . . . . . . . . . . . . . . . . . . . . . 10-1

[11] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . 11-1

1. Maintenance cycle and maintena nce items . . 11-1

[12] ELECTRICAL SECTION . . . . . . . . . . . . . . 12-1

1. System block diagram . . . . . . . . . . . . . . . . . . . 12-1

2. Main circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3

(1) Block diagram . . . . . . . . . . . . . . . . . . . . . 12-3

(2) CPU (IC6) SC3041K12F . . . . . . . . . . . . . 12-4

(3) Detector circuit of sensor signal . . . . . . . 12-8

(4) Start/stop control circuit . . . . . . . . . . . . . 12-8

(5) Heater lamp control circuit . . . . . . . . . . . 12-9

(6) Driver circuit (Solenoid, electromagnetic

clutch) . . . . . . . . . . . . . . . . . . . . . . . . . . 12-10

(7) Stepping motor drive circuit . . . . . . . . . 12-10

(8) AE (Auto Exposure) sensor circuit . . . . 12-11

(9) Toner supply motor dri ve circuit . . . . . . 12-11

(10) Reset IC (IC13) . . . . . . . . . . . . . . . . . . . 12-11

(11) Operation panel . . . . . . . . . . . . . . . . . . 12-12

(12) EnergyStar circuit description . . . . . . . . 12-13

[1] PRODUCT OUTLINE

1. Product features

(1) Compact body

• Compact body size

The body width of 600mm is the smallest in the class.

• The employment of the front loading tray and the folding-type multi

manual paper feed cassette realizes the small occupying area. (Option)

2. System configuration (options)

(2) Clean copy gentle to the environment

• Silent design,

• Low level of ozone, use of recyclable materials

• The energy-saving mode reduces the power consumption.

(3) High capacity of copying

• Warm-up time is less than 35 sec. The first copy of 5.3 sec.

(4) Fully expandable system. (Refer to "2. System configuration.")

Automatic document feeder SF-A18

10-bin sorter SF-S17 N

Note: When installing the SF-S54, the exclusive-use desk (SF-DS17) is reguired.

Tray (reserve) SF-UB15

Exclusive-use desk

SF-DS17

10-bin staple sorter SF-S54

1 – 1

[2] PRODUCT SPECIFICATIONS

1. Basic specifications

(1) Type: Table top (2) Copy speed:

Normal

A3 10 sheets/min 10 sheets/min

B4 12 sheets/min 12 sheets/min 12 sheets/min A4 (Portrait) 18 sheets/min 14 sheets/min 14 sheets/min A4 (Landscape) 14 sheets/min 14 sheets/min 14 sheets/min 81⁄2 × 13″ 12 sheets/min 12 sheets/min 12 sheets/min

(Note) The copy speeds for enlargement and reduction are minimum

speed values. (3) Warm up time: 35 sec or less (4) First copy time: 5.3 sec (Tray) (5) Jam recovery time: 8 sec (Conditions: After leaving the door

open for 60 sec, the standard conditions) (6) Multi copy Max. 250 sheets (7) Original

Max. original size A3 Reference original size Left side/Center Original sensing No

(8) Copy magnification ratio

Fixed magnification: AB series: 200, 141, 122, 115, 100, 86, 81,

70, 50% (9 steps)

Zoom range: 50% ∼ 200% (151 steps by the increment of 1%)

(9) Exposure

Exposure mode: Auto/Manual/Photo No. of manual steps: 9 steps

(10) Void width

Void area: Lead edge/rear edge: 3mm or less Image loss Normal: 4mm or less

(11) Paper exit/finishing

Paper exit tray capacity: 250 sheets Finishing: option 10-bin sorter, 10-bin staple sorter

Enlargement

(Magnification)

(200%)

Reduction

(Magnification) 10 sheets/min

(50%)

(12) Additional functions

Function Remark Auto Paper Selection × Auto Magnification ratio

Selection Shift F 1-set 2-copy F Enlargement is impossible. Edge erase F Built-in auditor

password mode Interruption F Monochrom × AICS F Pre-heat mode F Auto shut off F Auto power save F Auto tray switching × Cover insertion × OHP insertion paper × Overlay ×

(13) External dimensions

W x D x H 600 × 595 × 365 mm Occupying area (W x D) 885 × 595 mm Weight 41.0Kg

(14) Power source

Voltage: 220 ∼ 230V 50/60Hz

240V 50Hz

Frequency: 50/60Hz common

(15) Power consumption

Max. power consumption

Energy efficiency 64Wh/h or less Auto power shut

off (for EPA)

1.5kw (Note) Max. when the

5W or less

F 20 departments

option is installed

2 – 1

2. Description of each section

(1) Paper feed section

Copying size A3 ∼ A6/Ledger ∼ Invoice Paper feed system 1 tray + multi manual feed Paper feed capacity 250 sheets × 1

Cassette Paper size Paper weight Paper kind

Tray

Multi manual paper feed

Multi

Single

AB series: A3 ∼ A5

AB series: A3 ∼ A6R

56 ∼ 80g/m

52 ∼ 128g/m

Standard paper,

recycled paper Standard paper,

specified paper, special paper, OHP film, Second original paper,

postcards (without folding)

(2) Optical section

Light source Halogen lamp Exposure system Slit exposure by moving the light source Zooming system By changing the lens positions and the scan

speed.

Lens Fixed focus lens

(3) Process

Charging system (–) DC saw teeth electrode system Transfer system (–) tungsten system Separation system (AC) separation tungsten system

(4) Developing section

Developing system Dry, two-component magnetic brush

development (developer replacement)

Developing bias voltage DC–200V ±5V

(5) Fusing section

Fusing system Heat roller system Upper heat roller surface temperature 190 degrees C Heater lamp Halogen lamp 1000W × 1

3. Supply parts

Name Content Life Product name

1 Photoconductor kit Photoconductor drum x 1

Cleaner blade x 1

Drum separation pawl x 2 2 Black developer Black developer (530g) x 10 60K x 10 SF-226CD 3 Black toner Black toner cartridge (240g) x 10 6K x 10 SF-226CT 4 Upper heat roller kit Upper heat roller x 1

Upper separation pawl x 4

Fusing bearing x 1 5 Lower heat roller kit Lower heat roller x 1

Lower separation pawl x 4 6 Staple cartridge Staple cartridge (For SF-S54) x 3 5K staples x 3 SF-LS12 7 Upper heat roller Upper heat roller x 1 120K SF-216HU 8 Upper separation pawl Upper separation pawl x 4 x 10 120K x 10 SF-216UP 9 Heat roller gear Heat roller gear x 10 120K x 10 SF-216HG 10 Lower heat roller Lower heat roller x 1 120K SF-216HR 11 Lower separation pawl Lower separation pawl x 4 x 10 120K x 10 SF-216LP 12 Screen grid Screen grid x 10 120K x 10 SF-216SU 13 Cleaner blade Cleaner blade x 10 6K x 10 SF-216CB 14 Charging plate Charging plate x 10 120K x 10 SF-216PU 15 Ozone filter Ozone filter x 10 300K x 10 SF-216FL 16 Copy lamp Copy lamp x 10 — SF-216CL 17 MC case unit MC case unit x 10 — SF-216MC

60K SF-226DR

120K SF-216HU

120K SF-220LH

2 – 2

4. Optional specifications

(2) 10-bin sorter

(1) Automatic document feeder (ADF) <Model name: SF-A18>

Original set direction Face up Original set position Center reference Original transport system Belt (half size) system Original feed sequence Bottom taking (Face up exit) Original size A3 ∼ A5 Original change speed

(S → S) Original weight 50 ∼ 128g/m Original set quantity 50 sheets, 50 ~ 80 g/cm2,

Original stop system Position control system Dimensions 571 (W) x 521 (D) x 110 (H) (mm)

Weight About 11.5kg

Power source Supplied from the copier’s power section.

Power consumption 65W

16 sheets/min

80 ~ 128 g/m2 thickness max. 5 mm

(Height: excluding the tray)

Functions

Original sensing on the tray

Sensing size AB series: A3, B4, A4, A4R, A5 Original mixture Allowed (However, no linkage with the AMS) Original reverse NO

YES (Scanning read for uncertain size originals.)

Type Copier installation type/Hanging type Distribution system Bin shift by lead screw No. of bins 10 bins (The top bin is used also for

non-sort.)

Capacity 30 sheets/bin A4, 100 sheets for the

top bin only.

Sorting 30 sheets (A4)

15 sheets (B4) 15 sheets (A3)

Grouping 20 sheets (A4)

15 sheets (B4) 15 sheets (A3)

Paper size (Non-sort) A3 ∼ A6 (Postcard)R/2"

(Sort/group) A3 ∼ A5 Paper transport Center reference Paper reception Face up Paper weight (Non-sort) 52 ∼ 128g/m

(Sort/group) 56 ∼ 80g/m Dimensions 335 (W) x 493 (D) x 298 (H) (mm)

(Width: Including the tray.) Weight 8.6kg [9.8kg Including mounted fittings] Power source Supplied from the copier. DC24V (1.2A) Power consumption Max. 30W

2 – 3

(3) 10-bin staple sorter (10-bin SS) <Model name: SF-S54>

Type Copier installation type/hanging type Distribution system Bin shift system by lead screw No. of bins 10 bins (The top bin is commonly used

for non-sort.

Capacity 30 sheets for each bin

(A4, 80g/m2) 100 sheets for the top bin

Sort 30 sheets (A4)

15 sheets (B4) 15 sheets (A3) 80g/m

Grouping 20 sheets (A4)

15 sheets (B4) 15 sheets (A3), 80g/m

Staple sort 30 sheets (A4)

15 SHEETS (B4) 15 sheets (A3) 80g/m

Paper size Non-sort A3 ∼ A6R

Sort/group A3 ∼ A5 Staple sort A3, B4, A4, A4R, B5

Alignment (Sorting) Max. shift 2mm (Alignment operation)

Staple section

Type Copier stapler Stapling time 1.8 sec No. of stapled sheets 30 sheets (80g/m2) Binding reference Front reference Staple supply Cartridge (5,000 pcs.) Staple SF-LS12 No staple/no cartridge/

Available

no stapler detection Staple jam detection Available Manual staple mode Available (excluding manual stapling)

Note: When installing the SF-S54, the exclusive-use desk (SF-DS17)

is required.

(4) Exclusive-use desk

SF-DS17

Dimensions 570(W) × 523(D) × 520(H)mm Weight About 19.5kg Functions Caster Provided

Adjuster None Door None

Paper transport Center reference Paper loading Face up Paper weight Non-sort 49 ∼ 128g/m

Sort/group/staple sort 56 ∼ 80g/m

Dimensions 390(W) × 542(D) × 400(H)mm Weight About 11.5kg, 15kg [including the

installation kit] Power source DC24V (1.5A) supplied from the copier. Power consumption Max. 36W

2 – 4

[3] PRODUCT VIEWS

1. External view and internal structure

5 6

11 12

14 15

No. Name No. Name No. Name

1 Original cover 2 Original table 3 Paper exit tray 4 Grip 5 Manual feed original guide 6 Manual feed tray 7 Operation panel 8 Front cover 9 Power switch F Paper tray G Developing unit grip H Toner hopper I Fusing unit J Developing unit lock lever K Release lever L Drum

3 – 1

2. Operation panel

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

200%

5111117

SORTER

SORT

STAPLE SORT

GROUP

DUAL PAGE COPY

MARGIN SHIFT

EDGE ERASE

EXPOSURE

AUTO MANUAL PHOTO

12345

LIGHT DARK

PAPER SIZE

814

EXTRA

TRAY SELECT

No. Name No. Name No. Name

1 SORTER key and indicators 2 DUAL PAGE COPY key and indicator 3 MARGIN SHIFT key and indicator 4 AUTO/MANUAL/PHOTO key and

5 PAPER SIZE indicators 6 Misfeed indicator

indicators

7 Paper feed location/misfeed location

8 Preset ratio indicators 9 Copy quantity display

indicators

F Maintenance required indicator G Developer replacement required

indicator

I 10-key pad J POWER SAVE indicator K AUDIT CLEAR key L EDGE ERASE key and indicator M LIGHT and DARK keys and indicators N TRAY SELECT key O Paper required indicator P Copy ratio selector keys Q ZOOM indicator R Copy ratio display key S Zoom keys T INTERRUPT key and indicator U Zero/readout key V Clear key W Print button and READY indicator X Clear all key

8 8

11 17 8

11 8

11 17

xxx

100%

x x

141%

11 17

129%

11 17

121%

95%

77%

ZOOM INTERRUPT

64%

50%

1 45

POWER SAVE AUDIT CLEAR

23 24 25 26 27 2822212019181716

H Toner required indicator

3 – 2

3. Clutches, solenoids, and motors

Clutches and solenoids

No. Signal name Name Functions, operations

1 PSPS Paper separation solenoid Paper separation solenoid drive 2 RRC Resist roller clutch For resist roller rotation 3 TRC Transport roller clutch For transport roller rotation 4 CPFC1 Tray paper feed clutch For paper feed roller rotation 5 MPFS Manual paper feed solenoid For pressing take-up roller

Motors

No. Signal name Name Functions, operations Type

6 VFM Ventilation fan motor Used to ventilate around the fusing section, cools

down the machine, and remove ozone.

7 MM Main motor Used to drive the body. DC brush 8 CFM Optical system cooling fan Used to cool and ventilate the optical system. DC brushless 9 LM Lens motor Used to move the optical lens. DC stepping F TM Toner motor Used to stir toner. DC synchronous G MRM Mirror motor Used to move the mirror base. DC stepping H SMF Suction fan motor Used to ventilate the suction section. DC brushless

DC brushless

3 – 3

4. PWB

13 12 10

3 4 51 2

No Name Description No Name Description

1 Operation PWB A Operation input, display control 2 Operation PWB B Operation input, display control 3 Blank lamp PWB Used to control the blank lamp. 4 DL PWB Used to drive the discharge lamp. 5 Optical PWB AE sensor and lens motor interface 6 Process control PWB Used to sense the toner density. 7 Main PWB Used to control the body. 8 AC circuit PWB AC power input 9 CSD PWB Used to sense the body cassette

size.

G PID PWB Manual paper entry detection H PPD PWB Body PR roller JAM detection I High voltage PWB Process high voltage, developing

bias voltage supply

K Mark sensor PWB Drum marking point detection L Sub DC power PWB Supplies power in the energy

F DC circuit PWB DC power input

J POD PWB Body paper exit section JAM

detection, ventilation fan motor interface

saving mode. (Supplies 5V to the main PWB and the operation PWB.)

3 – 4

5. Sensors and switches

2 3 5 4 6

No. Signal name Name Type Operation, function

1 TCS Toner density control sensor Transmission sensor HIGH when toner density falls. 2 ILSW Front cabinet open/close switch Interlock switch ON when closed. 3 MSW Power switch Seesaw switch 4 TH Fusing heater thermistor Thermistor Greater resistance at low

temperature

5 TS Fusing heater thermostat Thermostat Contact open at abnormally high

temperature

6 POD Paper exit paper sensor Transmission photo sensor LOW when paper is present. 7 MHPS Mirror home position sensor Transmission photo sensor HIGH when paper is sensed. 8 MMRE Main motor encoder Transmission photo sensor Rotation pulse output 9 TFD Waste toner full switch Lead switch HIGH when sensed. F LHPS Lens home position sensor Transmission photo sensor LOW when reduction. G PPD Paper transport sensor Transmission photo sensor LOW when paper is present. H PED1 Body upper tray paper presence detection Transmission photo sensor HIGH when paper is present. I DPPD1 Body upper tray paper transport sensor Transmission photo sensor LOW when paper is present. J PID Single manual feed paper entry sensor Transmission photo sensor HIGH when paper is present.

3 – 5

6. Rollers, mirrors, etc.

3 4 567 8

16171819202829

222324252627

32 33

38 35

No. Name No. Name No. Name

1 No. 3 mirror 2 No. 2 mirror 3 No. 1 mirror 4 Copy lamp 5 No. 4 mirror 6 No. 5 mirror 7 No. 6 mirror 8 Developing unit toner box 9 Manual tray F — G Take-up roller H Paper feed roller I Reverse roller J PS front roller follower roll K PS front roller L Developing unit M Blank lamp N Main charger unit O Photoconductor drum P Cleaner unit Q Resist roller follower roll R Resist roller S Transfer charger T Separation charger U Drum separation pawl V Suction unit W Suction belt X Fusing thermistor Y Heater lamp Z Upper heat roller [ Lower heat roller \ Transport roller (upper) follower roller ] Transport roller (upper) ^ Developing magnet roller _ Tray paper feed roller ‘ Tray paper feed reverse roller a Tray paper feed take-up roller b PE actuator

3 – 6

[4] UNP ACKING AND INSTALLATION

1. Unpacking

2 Avoid high temperature and high humidity, and avoid sudden

temperature change. (Avoid installation near a cooler or a heater.) If not, paper absorbs moisture and dew forms in the machine, causing paper jam or degraded image quality.

(Standard condition): The best condition to use the machine. 20 ∼ 25°C: 65±5%RH (Temperature and humidity): 15 ∼ 30° C

20% ∼ 85% RH 35°C for 65%

85 65

Humidity

Packing material/accessory list

Name Q’ty 1 Paper exit tray 1 2 Instruction manual 1 3 Maintenance card 1 4 Dust cover 1 5 Service contract 1 6 Installation manual 1 7 Magnification ratio select label 1

2. Installat ion

Installing conditions

The surrounding conditions of the machine affect the machine performance gr eatly. Use great car e for the following items.

(1) Enviro nm ent

1 Avoid direct sunlight, and avoid installation near the window. (Cur-

tains or blinds must be shut completely.) If not, the plastic parts and the original cover may be deformed.

Even if the window is of frosted glass, there is no difference.

15 30 35

3 Avoid dust and vibrations.

If dust enters the machine, malfunctions may occur.

4 Avoid installation on an unstable surface.

Keep the machine in level state to maintain the performance.

˚C

4 – 1

5 Avoid installation to a poorly ventilated place.

6 Avoid installation to a place where there are flammable materials

or ammonia gas, etc. If the machine is installed near a diazo copier, the picture quality may be degraded and malfunctions may occur.

(5) Grounding wire connection

Connect the grounding wire to prevent against a danger.

2 When connecting the grounding wire, connect only to the ground-

ing object (the grounding terminal of the power outlet, etc.) and never connect to a gas pipe.

7 Install near a power outlet.

(2) Space aroun d th e ma chine

Install the machine with its rear side about 10cm (6 inches) apart from the wall in order to allow space to ventilation by the cooling fan.

Also allow eno ug h space around the ma chine for prop er op eration.

(3) Installation base

Set the machine in horizontal position in the following procedure. Be sure to use a leve ling instrumen t (UKOGM0054CSZZ) to install

the machine on a flat, horizontal place. (Note) If the machine is not in horizontal position, the toner density

control function may not work normally, resulting in degraded picture quality.

(4) Power sour ce

Use the power source of the rated capacity.

2 Avoid complicated wiring. If not, the breaker or the fuse may be

overloaded.

4 – 2

3. Optical system lock release

4. Charger cle ani ng

A. No. 2/3 mirror unit lock release

Remove the one fixing screw of the No. 2/3 mirror unit on the left side of the copier.

Mirror unit fixing screw

B. Lens and No. 4/5 mirror unit lock release

Remove two fixing screws of the No. 4/5 mirror unit on the right inside of the copier. Open the fr ont cabi net and remove one fixing screw of the le ns on the lower side of the operation panel.

A. Main charger unit electrode cleaning

1 Press the hook section of the main charger unit to release lock,

and pull out and remove the main charger unit from the copier.

Hook

main charger un i t

2 Remove one fixing screw of the main charger unit (on the back

side).

Fixing screw

Electrode section

Lens fixing screw

Paper feed tray

Mirror unit fixing screw

Main charger un i t

3 Press the electrode cleaner onto the tips of the electrode so that

the tips are inserted into the cleaner a few times to clean. (Note)

• Do not move the cleaner back and forth with the electrode tips

inserted into it.

• When cleaning, clean thoroughly at one time. Avoid partial

cleaning.

Electrode cleaner

Electrode section

4 Return the electrode section to the original position and fix it with a

screw.

4 – 3

5 Insert the main charger unit along the guide groove in the copier

fully to the bottom.

3 Remove three fixing screws of the toner hopper of the developing

unit, and remove the toner hopper.

Main charger un i t

5. Developing unit setting

A. Developing unit setting

1 Open the front cabinet, remove the installation toner fixed to the

developing unit level with tape, and pull the developing unit lever toward you.

2 Hold the grip of the developing unit, and slowly pull out the

developing unit until it stops. Then hold the hand carry strap and press the developing lever,

and remove the developing unit.

Fixing screw

Toner hopper

Fixing screw

Developing unit

4 While supplying developer from the developer supply port of the

developing unit, turn the MG gear clockwise with a screwdriver or a scale to supply fully in the developing unit.

Developer

Developer supply port

DV lever

Developing unit

Hand carry strap

Grip

Developing unit

MG gear

Screwdri v er (+) or scale

5 Install the toner hopper to the developing unit and fix it with two

screws.

Fixin g scr ew

Toner hopper

Fixin g scr ew

Developing unit

4 – 4

6 Hold the hand carry strap of the developing unit and insert it into

the copier fully to the bottom.

Hand carry strap

7. Accessor y i nst all ation

A. Copier tray installation

Install the copy tray to the paper exit section on the left side of the copier.

Copy tray

Developing unit

Grip

7 Close the developing unit lever and close the front cabinet.

Developing unit lever

Front cabinet

With the above procedure, setting of the developing unit is completed.

6. Toner density sensor level adjustment

8. Toner supply

1 Open the front cabinet. 2 Pull down the developer unit lock lever and pull the developing

unit out slowly unit it stops.

3 Hold a new toner cartridge horizontally as shown and shake it four

or five times.

Toner cartridge

T urn on the copier power switch.

A. Developing unit level adjustment

1 Execute simulation 25.

2 After 3 minutes, simulation 25 is completed.

(Note) If the simulation is terminated halfway, automatic reading

is not performed. Do not terminate it halfway.

3 Cancel simulation 25 with the CA key.

4 or 5 times

4 To install the toner cartridge, insert the projection of the cartridge

into the hole on the front of the developer unit as shown to unlock the toner hopper cover.

4 – 5

5 Open the toner hopper cover. Then remove the toner cartridge.

F Slide the toner cartridge toward the rear and lift to remove it.

Sealing tape

6 Line up the protrusions at the bottom of the toner cartridge with

the notches on the toner hopper.

• Align the arrow on the toner cartridge with arrow 1 on the

toner hopper.

7 Slide the toner cartridge to the front until it stops.

• Align the arrow on the toner cartridge with arrow 2 on the

toner hopper.

G Close the toner hopper cover. H Slide the developing unit into the copier. I Return the developing unit lock lever into place and close the front

cabinet.

8 While lightly pressing down on the cartridge with your left hand,

remove on the toner sealing tape.

9 Tap lightly on the top of the toner cartridge several times to en-

sure that it empties completely.

4 – 6

9. Center shift adjustment

)

10. Label attachment

There is basically no need to perform the center shift adjustment because it is made when shipping. If the center should be shifted, adjust in the following procedures. Make a c opy. If t he center is shifted as shown in Fig. 1 or Fig. 2, loosen the four screws which are fixing the cassette grip cabinet.

Section b Section b

Section a

(Note) When fixing the cassette cabinet, the fixing screws and the

cabinet clearance a and b are in symmetry.

[Reference figure]

Direct ion A

Direc ti on B

Section b

Section a

A. Label attachment

Attach th e magnification ratio sel ect label packed together with the Opera tion manual to the position shown in the figur e below.

• When attaching the label to the copier with the original cover.

Magnification ratio select lable

• When attaching the label to the optional automatic original feeder

(SF-A18)

(1) Fig. 1

Move the cassette grip cabinet in direction A, tighten two fixing screws (a) and tow fixing screws (b) in this sequence. Make a copy again and check the center.

[Fig.1]

Image center line (First image)

Paper center line

(2) Fig. 2

Move the cassette grip cabinet in direction B, tighten two fixing screws (a) and tow fixing screws (b) in this sequence. Make a copy again and check the center.

[Fig.2]

Paper center line

Magnification ratio select lable

Ima

e center line (First image

4 – 7

[5] DESCRIPTIONS OF EACH SECTION

Descri ptions are made on the follow ing sections:

1 Paper feed section 2 Developing section 3 Optical section 4 Process section 5 Separation/transport section 6 Fusing/paper exit section 7 High voltage section

2) Basic operati ons

(Tray paper feed operat ion)

When the CPFC (Cassette paper feed clutch) turn on, the paper feed roller shaft, t he paper fe ed roller, and the ta ke-up roller rotat e in the direction of A. At the same time, the limiter spring moves down the roller release arm. As a result, the take-up roller falls by its own weight onto the paper surf ace, start ing paper feed.

Roller release arm

Take-up roller

Paper feed roller

Paper feed roller shaft

1. Paper feed secti on

1) General descriptions

To real ize the com pact desig n, the fro nt loading s ystem and th e foldable multi paper feed unit (Option for some areas) are employed.

50 Sheets

250 sheets

When the CPFC turns off, rotation stops and the take-up roller is pushed up to the original position by the roller release arm sprin g.

(Manual paper feed operation)

There is no special mechanism for manual paper feed other than the manual feed paper sensi ng actuator and the paper g uide. When the CPFC turns off, rotation stops and the take-up roller is pushed up to the original position.

The pa per fe ed tra y is of th e univer sal typ e and has cap acity of 250 sheets. The front loading system allows the tray to be loaded from the lower side of the front cabinet. Manual paper feed is made in the m ulti paper feed.

5 – 1

2. Developing secti on

1) General descriptions

(1) Two-component developer

The developer is composed of toner and carrier. Carrier serves as a me dium for attachi ng ton er onto the ele ctrostat ic image on the photocondu ctor drum. By stirring toner and carrier, they are rubbed to be charged positive (+) and negative (–) respectively. Since deve loper will deter iorate to degra de copy quality, it shou ld be replaced regularly.

(2) Two-component magnetic brush development

The rotatable non-magnetic sleeve is provided over the magnet roller and is rotated. Carrier forms a ma gnetic brush on the sleeve surfa ce by magnetic force to attach toner onto the electrostatic image on the photoconductor drum.

(3) Developing bias

When the photoconductor is charged and exposed to light (exposure ), th e surfac e poten tia l (volt ag e) of the p ho tocon duct or w ill no t be lost completely. (The residual potential remains.) Toner is attracted to the photoconductor by this residual potential, dirty ing the phot oconductor. As a r esult, a dirt y copy of whi te background is generated. To prevent against this , a voltage of the same polarity and higher than the residual potential is applied to the MG roller, preventing toner from being attached to the photoconduct o r surf a ce .

(Details of DV harness connector)

GND

*For toner density sensor

*Resistance value is identified by color

2) Basic composition

For bias

GND

Residual potent i al < D V B IAS

MG rolle r

DV BIAS

Toner

Carrier

Devel opi ng bia s v olt age

-200V

(4) DV harness

The toner density sensor, the developing bias, harness. (For details, refer to [6] DISASSEMBLY AND ASSEMBL Y.)

(View ed fr om th e rear of devel oi ng uni t )

3 5

No. Name

Magnet roller Forms a magnetic brush of carrier

Developing doctor blade Limits the height of the magnetic

Developing MIX roller Stirs carrier in the developing unit

Toner transport roller Transport toner sent from the

Toner density sensor Senses toner density in

by magnetic force.

brush.

and distributes toner evenly.

toner hopper unit to the stirring section.

developer.

DV har ness c onnec t or

5 – 2

3) Basic operations

(Cassette paper feed)

When the CPFC (cassette paper feed clutch) is turned on, the paper feed roller shaft, the paper feed roller, and the take-up roller rotates in the dire ction of A, an d the r oller re lease arm is moved downwa rd by the limiter spring. As a result, the take-up roller falls by its weight to reach the paper surface, feeding the paper. When the CPFC is turned off, the take-up roller is pushed up to the position by the roller release arm spring.

3. Optical section

Stirring roll er

MG roller

Transport roller(upper)

Transport roller(lower)

DV drive unit

PS roller

Multi manual insertion paper feed unit (Option)

Paper fe ed unit

Proccess unit

Paper feed rive unit

Main drive unit

Cleaner unit

Transport unit

Main motor

Fuser unit

Paper ex it roller

1) General description

• The optical section of this model is composed of the fixed focus

lens and six mirrors. Since the fixed focus lens is used, No. 4/5 mirror base is shifted according to the shift of the lens to change the distance between the original and the drum (OID, Original Image Distance) in reduction or enlargement copy. The lens and No. 4/5 mirror unit are shifted by driving the stepping motor with the signals from the main control PWB, allowing zooming of 151 steps in 1% increment in the range of 0.50 to 2.00.

5 6 910

• Exposure is adjusted by changing the copy lamp voltage. The AE

sensor is provided in the zoom base to sense the density of the original. The copy lamp light is reflected by the original to the AE sensor, which senses the density of the original and adjust the copy lamp light quantity according to the density.

• The exposure system is the slit exposure system by moving light

source.

151 2

14 8 12

711 1316 4

Copy lamp

No. 2 mirror

No. 4 mirror

No. 2/3 mirror base unit

Mirror motor

Mirror home position sensor

Reflector

No. 3 mirror

No. 5 mirror

Copy lamp unit

Lens/No. 4/5 mirror base drive motor

Automatic exposure (AE) sensor/

Optical system dirt sensor

5 – 3

No. 1 mirror

Lens

No. 6 mirror

No. 4/5 mirror base unit

Lens home position sensor

(1) Original table

The original table is fixed. The original is set in the left center position.

Mirror base sc an spe ed is chang ed f o r zoomi ng

Enlargment

(2) Copy lamp

200V series: 170V , 310W

(3) Mirror

This model uses six mirrors. No. 1 mirror is attached to the copy lamp unit, No. 2/3 mirrors are attached to No. 2/3 mirror base, No. 4/5 mirrors are attached to No. 4/5 mirror base. The copy lamp unit and th e No. 2/3 mir ror base unit are scanne d in copying. The No. 4/5 mirror base is shifted in zoom copying to change the dist ance between ten original and the drum.

(4) Lens (fixed focus lens)

• Construction (1 group 3 lenses)

• Brightness (F8.5)

• Focus: (195mm ±1%)

(5) Lens home position sensor (LHPS)

This sens or sen ses the le ns home position . The out put sign al of thi s sensor is the basic signal to control the copy magnification ratio.

(6) Lens base

The lens is mounted to the lens base, which is shifted toward the paper feed direction in reduction copy or toward the paper exit direction in enlargement copy by the lens drive motor.

Copy direction

Normal

Zooming b y c hangi ng th e le ns and mirror positi on

Original

Reduct i o n

5 – 4

Parts identification and functions

Mirror home position sensor

No. 2/3 mirror unit

Copy lamp unit

Lens drive wire

Reflector

Copy lamp

Lens home position sensor

AE sensor

Lens No. 4/5 mirror unit drive motor N

Mirror motor

No. 4/5 mirror unit

Lens

Lens unit

Mirror base wire Temperature fuse

(7) Lens drive shaft

This shaft controls the optical axis of the lens in zoom copy. The lens follows along the slide base shaft.

(8) Lens drive wire

This is to shift the lens unit and the No. 4/5 mirror base.

(9) No. 4/5 mirror unit

No. 4/ 5 mirro rs a re a ttach ed t o this unit. It is shif ted by the le ns driv e motor to change the distance between the original and the drum according to the zooming ratio.

(10) Mirror m otor

This st epping motor shifts the co py lamp unit and the No. 2 /3 mir ror base. It is rotated at the rpm according to each zooming ratio.

(11) M irror home position sensor (MHPS)

This sensor senses the home position of the copy lamp unit. It is of light t r ansmission type.

(12) No. 2/3 mirror unit

No. 2/3 mirrors are attached to th is unit. It is scann ed by the mirror motor.

(13) Copy lamp unit

This is composed of No. 1 mirror, the temperature fuse, the copy lamp, the exposure adjustment plate, and the reflector, and scanned by the mirror motor.

(14) Temperature fuse

This is attached closely to the reflector to prevent against abnormal temperature rise in th e optic al syste m. If the temperatur e rise s abn ormally, it turns off the copy lamp power directly. 100V s eries (117°C) 200V s eries (117°C)

(15) Reflector

Light from the copy lamp is reflected by the reflector to the original.

(16) Exposure adj ustment plate

Four exp osure adjust ment plat es are attac hed to the copy lamp unit to adjust expos ure balance in back and forth direction of the f rame.

(17) Mirror base drive wire

This wire transmits the m irror motor p ower to th e copy lamp unit and the No. 2/3 mirror base to scan the mirror base.

(18) Lens drive m ot or

This stepping motor drives the lens and the No. 4/5 mirror base.

(19) AE sensor

This AE sensor senses the original density by the light emitted from the copy l am p a nd r ef lec te d by the origina l, controllin g t he de ve loping bias. The photometric area is about 100m width at the center and in the mirr or base scanning dir e ction. The element is photo diodes.

5 – 5

2) Basic operations

(Positions of the o riginal, the lens, and the image in each magnification ratio)

Normal: The distance between the original set on the table glass and

the lens is equal to the distance between the lens and the drum, resulting in the equal size of the original and the image.

Enlargement: Compared to the normal copy, the lens is nearer to the

original and the distance between the original and the lens is shorter. The distance between the No. 4/5 mirror unit and the lens is greater, and the distance between the lens and the drum is also greater. The distance between the original and the exposure surface of the drum is greater than that in the normal copy.

Mirror base scan speed

Lens and mirror positions are changed to adjust the

Copy paper

magnif ic ati o n ra t io

feed derection

Mirror scan speed is cahnged to adjust the magnification ratio

Mirror scan sp eed Drum rotation speed <Mirror scan speed

Enlargement

Original

Reduction

Reduction: Compared to the normal copy, the lens is nearer to the

drum, and the distance between the original surface and the lens is longer. The distance between the lens and the exposure surface of the drum is shorter. The distance between the No. 4/5 mirror unit and the lens is greater. The distance between the original and the exposure surface of the drum is greater than that in the normal copy.

(Copy lamp control in each copy density)

[MAX. 83V(166V) ] 80 70

CLV

(Copy lamp application voltage)

Execute Sim 46-01 to de termine the copy lamp applicatio n voltage (CLV) in EX1 and EX5. Then divide the difference between the voltages of EX1.0 and EX5.0 into nine. The application vol tage of the copy lamp in each expo sure level is determined by varying the ON timer duty of the copy lamp ON control signal.

(V)

60 50 40

EX1

[MIN. 45V(90V)]

EX5

• Photo density copy mode

Make the same control procedures as the manual density copy mode. The image density is controlled by lowering the grid bias voltage of the charging charger. To maintain the reproduction quality in half tone, the ON time duty of the copy lamp ON signal is made shorter than in the manual density copy mode. (The application voltage is lower.)

5 – 6

(Optical system dirt correction)

This mo del pe rform dirt correc tion by cha nging t he cop y lamp intensity a ccord ing t o the d irt degr ee in th e optic al s ystem (t he co py la mp unit, No. 1 mirror, No.2 mirror, No.3 mirror) to prevent against remarkable de grading of copy quality. The reference value is the AE sensor output value which is obtained when th e reference plate is e xposed with th e copy lamp voltage of

67.0V (134.0V) at power ON. This value is checked with sim 44-08, 09.

CLV

Sim46

Reference plate (Glass holder)

CPU

Reference value

>Measured value

Correction data output

Table glass

Copy lamp light quantity "UP"

Automatic exposu re sensor

100 200 300 400 79.8K 80K

CLV + (0.7)

(1) Setting the reference value for optical system correction.

Reference plate (Glass holder)

CPU reference value setting

1 Clean the optical system at every maintenance. 2 Perform Simulation 46-1.

(The previous data are cleared.)

3 After completion of Simulation 46-1, when performing the first

mirror initialization, measure light quantity of the copy lamp. Obtain the average value from the four measurement values and use the average value as the reference value for correction.

800ms

Table glass

Automatic exposu re sensor

1234

(2) Dirt corr ection

Reference plate (Glass holder)

CPU

Referenc e v a lue

>Measured value

Correction data output

1 Measure light quantity when performing mirror initialization. 2 Store the correction data into memory. 3 Reset the register inside the CPU.

Table glass

Copy lamp light quantity "UP"

Automatic exposu re sensor

Light quan t i t y measurement

Obtain the average value of four AE sensor values, and store it.

5 – 7

4. Copy process

This model basic process and structure

• The Scorotron method is used to evenly charge the photoconduc-

tor surface to the given potential in the charge process. The corona wire regularly used is now replaced with a new corona charge mechanism that employs the 0.1mm thick stainless steel saw teeth plate, in order to suppress ozone generated when the oxide molecule in air is ionized.

• Considering the service efficiency, the process separation

mechanism is adopted.

• To prevent high voltage leakage by the loose corona charge unit, a

one-touch stopper mechanism is adopted.

Stirring roll er

MG roller

Transport roller(upper)

Transport roller(lower)

DV drive unit

PS roller

Multi manual insertion paper feed unit (Option)

Paper fe ed unit

Proccess unit

Paper feed rive unit

Main drive unit

Cleaner unit

Transport unit

Main motor

Fuser unit

Paper exit roller

1) Photoconductor

• This model uses OPC (organic photoconductor) as photoconduc-

tive material. (φ50 mm)

OPC la ye r CTL (Ele ctr ic char g e moving layer)

CGL (Electric charge generating layer) Aluminum layer

5 – 8

2) Process diagram

High voltage unit

Original

Copy lampMirror lens

Discharge lamp

Cleani n g bl ad e

Waste toner collection

Paper exit

Main corona unit

Separ at ion

Fusing

Heat r olle r

Heater lamp

Discharging

Cleaning

Separation

Separation corona unit

High voltage unit

Charging

Exposure

Transfer

Transfer charger

High voltage unit

Discharge

Development

Drum u ppe r

image /paper

synchronization

1 Main corona unit 2 Blank lamp 3 Developer unit 4 MG roller 5 Transfer corona unit 6 Separation corona unit 7 Separation pawl 8 Cleaning blade 9 Discharge lamp

Resist roller

Blank lamp

Toner

Developer

High voltage unit

Paper feed roller Transportroller

Image forming process

Paper transport path

Manual paper feed Paper cassette

5 – 9

3) Details of image forming process

Step 1 (Main Char gi ng)

By negative discharging of the main charger, uniform negative charges are applied to the OPC drum surface. The OPC drum surface potential is controlled by the screen grid voltage to maintain the grid voltage at a constant level.

• When the drum surface potential is lower than the grid voltage,

electric charges generated by discharging of the charger go through the screen grid to charge the drum surface potential until it becomes equal to the grid voltage.

• When the drum surface potential virtually reaches the grid potential

level, electric charges generated by discharging of the charger flows through the electrode of the screen grid to the high voltage unit grid voltage output circuit, thus always maintaining the drum surface potential at a level virtually equal to the grid voltage.

• The main corona unit employs the scorotron system to charge the

photoconductor surface to a certain level uniformly. In addition, the conventional corona wire is replaced with the corona charging mechanism by saw-teeth plate (stainless steel plate of 0.1 mm thick). In corona discharge, oxygen molecules in the air are ionized to generate ozone (O3). The mechanism restrict the generation of ozone.

Main corona unit

1 Main corona unit 2 Blank lamp 3 Developer unit 4 MG roller 5 Transfer corona unit 6 Separation corona unit 7 Separation pawl 8 Cleaning blade 9 Discharge lamp

High voltage unit

Screen grid

CTL

CGL

OPC drum

Aluminum layer

Step 2 (Exposure)

Light from the copy lamp is radiated on the document, and the optical image of the document is reflected by the mirrors and projected through the lens to the OP C drum. The ligh ter p orti on of th e docu men t refl ec ts more light ( high int ensit y) to the OPC drum , an d the d ark er por tion o f the docu ment ref lect les s light (l ow intensity) t o the OPC drum. Po si t iv e or negative ch ar g es ar e generated in the CGL of the OPC drum where lights are radiated. Negative charges generated in the CGL move tow ards the positive charges in the aluminum layer generated in step 3. While the positive charges in the CGL move towards the negative charges on the CPU drum surface generated in step 3. Therefore, positive charges and negati ve ch arg es a re n eutr aliz ed in the alum inum laye r an d th e OPC drum surface at the light radiating position, decreasing the OPC drum surface potential. The CGL electric charge generating amount increase s in proport ion to the d ocument density, that is, refl ected ligh t intens ity (the OPC drum surfac e intensity). Ther efore, electric ch arges are gener ated les s in th e CGL layer cor respon ding to the lig hter density of document (higher intensity of the OPC drum surface), and a greater quantity of the negative charges on the OPC drum surface is neutraliz ed, decreasing th e OPC drum surfac e potential more .

On the contrary, electric charges are generated more in the CGL layer corresponding to the darker density of document (lower intensity of the OPC drum surface), and less quantity of the negative charges on the CPU drum surface is neutralized, decreasing the OPC drum surface less. Therefore, the OPC drum surface potential corresponding to the lighter portion of the document is lower, and that corresponding to the darker portion of the document is higher. Latent static-electricity images are formed in the above manner.

5 – 10

CTL

CGL

Low intensity in the area corresponding to the darker density portion of the document

Medium intensity in the area corresponding to the medium density portion of the document

HIgh intensity in the area corresponding to the lighter density of the document

Aluminum layer

CGL

Aluminum layer

CTL

Surface potential

(High)

Surface potential (Medium)

Surface potential (Low)

Step 3 (Develop me nt )

Toner is attached to the la tent stati c-electric ity images on the drum surface to change them to visible images. The two-component magnetic brush development system charges toner positively by friction with car riers , and toner is attac hed t o nega tive cha rges on the d rum surface. The potential in the darker document projecting area (low intens ity) is high (m uch negative c harges) and a ttracts more toner. The potential in the lighter document projecting portion (high intensity) is low (less negative charges), and attracts less toner.

OPC drum

1 Main corona unit 2 Blank lamp 3 Developer unit 4 MG roller 5 Transfer corona unit 6 Separation corona unit 7 Separation pawl 8 Cleaning blade 9 Discharge lamp

OPC drum

Aluminum layer

Higher surface potential (Much negative

(charges)

Medium surface potential (Less negative

(charges)

Lower surface potential (No negative

(charges)

CGL

CTL

MG roller

-200V

High voltage unit bias voltage

At that time, a bias of –200V is applied to the MG roller (magnet roller), which is provided for preventing toner from being attracted by the resi du al vol tag e (abo ut –80V t o –1 00V ) in the ligh te r port ion aft er exposure.

5 – 11

Step 4 (Transfer)

The transfer paper is charged higher than the OPC drum surface potential by s tr on g negative discharge of the transfer char ge r, mak ing the binding force between the transfer paper and toner stronger than that between the drum and toner, attracting toner to the transfer paper.

Aluminum layer

CGL

CTL

OPC drum

Toner

Transfer paper

Transfer corona unit

High voltage unit

Step 5 (Separati on)

After transfer, the copy paper and the drum are negatively charged. Since, however, the negative potential of the copy paper is higher than tha t of the drum, a attract ion for ce is appl ied betw een the dr um and the copy paper. To avoid this, AC corona is applied to the copy paper by the separation charger to decrease the copy paper potential to the same level as the drum surface potential. The attraction between t he copy pape r and the drum is weakened by this, a llowing separation of the copy paper by its own extending force. If the copy paper is not separated by the separation charger, it is separated by the separation pawl mechanically.

Aluminum layer

CGL

CTL

OPC drum

Toner

Transfer paper

1 Main corona unit 2 Blank lamp 3 Developer unit 4 MG roller 5 Transfer corona unit 6 Separation corona unit 7 Separation pawl 8 Cleaning blade 9 Discharge lamp

High voltage unit

Seperation corona unit

5 – 12

Step 6 (Cleaning)

Residual toner on the drum is removed by the cleaning blade. The removed toner is sent to the waste toner container by the waste toner transp ort screw.

CGL

Blade Aluminum layer

CTL

Residual toner

OPC drum

Step 7 (Dischargi ng)

When the OPC drum is exposed to the discharge lamp light, positive and negative charges are generated in the OPC drum CGL. The negati ve charges ge nerated in th e CGL move towards the residua l positiv e char ges in the alu minum layer, wh ile the posit ive cha rges i n the CGL move towards the residual negative charges on the OPC drum s urface. The refore, t he positi ve and the ne gative cha rges are neutralized in the aluminum layer and on the OPC drum surface, removing the residual charges on the OPC drum surface. As a result, the OPC drum surface potential becomes 20V ∼ 30V.

1 Main corona unit 2 Blank lamp 3 Developer unit 4 MG roller 5 Transfer corona unit 6 Separation corona unit 7 Separation pawl 8 Cleaning blade 9 Discharge lamp

Residual charge

CTL

CGL

Aluminum layer

Discharge lamp

OPC drum

Residual charge

5 – 13

4) Transition of photoconductor surface potential

Develop

Charge Exposure

-730V

Dark area

-215V

Devel opi ng bia s v olt age

Light area

5) Photoconductor drum sensitivity correction

In this mod el, f all i n sen sitiv ity due to long use o f th e pho tocon du ctor drum is co rrected by th e copy lamp lig ht intensi ty to preven t against considerable change in copy quality. The photocondu ctor drum se nsitivity fall co rrection is performed a s follows:

Cleaner

OPC drum

Develop

Change the tickness of the carrier transport layer (CTL). By the developper. By the cleaner blade.

Residual po tentia l

(NEW)

Transfer Separate

Clean

(USED)

CLV

Sim46

6) Process control function

[Summary]

The process control function detects the density of the standard toner image formed on the photoconductor, the density of the initial image and controls the charging grid voltage so that the same level as the initial imag e den si t y is pro vid ed . That is, the process conditions are established and the high voltage output and exposure level are controlled to stabilize the toner density. In this model, the density sensing level is automatically set.

CTL CGL

Time

MAin control PWB

CPU density judgement

5 – 14

I/O MC grid output selecti on

High voltage PWB

MC grid bias output (density correction ) in each mode

(Light quan tity correction)

Process control

1 Toner patch images are formed on the photoconductor surface

under the three process conditions (MC grid bias voltage). At the first process control, a toner parch image is formed with the reference grid voltage –410V as the center and ±30V. At the second or later process control, the MC grid bias voltage determined at the former process control is used as the center, and a toner patch is formed under the process condition of ±30V to the center value.

2 Measure the three toner patch images formed in the above and

the drum surface with the process density sensor to obtain the relations.

Surface

472V

440V

408V

Bias

1 2

3 2

IDPAT =PV 2 x 20 IDPAT =PV 3 x 20

Toner image Surface

Drum 1/2 rotation 2/2 rotation 3/2 rotations

1IDPAT =PV 1 x 20 2 3

BVS: Sensor detection level on the photoconductor drum surface PVS: Sensor detection level with the toner patch image

Obtain the above two levels from the calculation formula and record them as the reference values.

A. STD BA: Reference level when detecting the drum surface

→ STD BA = BV x 20

B. STD PA: Reference level when detecting the toner patch image

→ STD PA = PV x 20 In the density correction, the process conditions are determined so that the ratio of the reference levels may be maintained at constant.

3 Obtain the MC grid bias voltage from the reference level ratio.

( ”ä)

STD PA

STD BA

MC grid bias voltage

In this model, the absolute value of the output of the density sensor is not directly used for control calculation, but the ratio of the sensor output value (BA) on the drum surface and the sensor output (PA) of the toner patch image is used for control calculation.

* The grid bias value is obtained so that the ratio of the drum

surface level and the sensor level when forming patch level and the sensor level when f orming patch im ages is 200:40.

Though , therefor e t h e light quan ti t y of the reflection type se ns or is varied by dirt or deterioration, the ratio (PA/PB) will not be affected by change in light quantity to provide stable control.

Toner image Surface

IDBAS =BV 1 x 20

1 2

IDBAS =BV 2 x 20

IDBAS =BV 3 x 20



STD PA



STD BA



GB PAT

Toner image



set in the above

 

-440-410-380

Surface

ID PAT3 ID BAS3

ID PAT2 ID BAS2

ID PAT1 ID BAS1

The grid voltage value where the same density level as the reference level is obtained is displayed by Sim. 44-9 "a". This value is displayed with 50 as the center in the range of 0 ~ 99 in integer numbers. The correction for 50 is 0V (–410V), and the correction for 56 is +30V (–440V).

4 When the MC grid bias voltage is corrected by the process con-

trol, the corresponding light quantity is calculated to control the copy lamp. To correct the MC grid voltage, the delta value of the sensitivity level when the initially recorded reference grid voltage is –410V and the MC grid voltage where the same density is obtained in process control is fed back to the MC grid voltage of each mode.

Process control timing

In this model, the process control is performed in the following timing:

1 When the main switch is turned on and the first copy is made: 2 At every specified copy quantity (First copy after 1,000 copies)

Judged by the total counter.

3 After the specified time after turning on the main switch. (First

copy after 44, 60, 120, 180 min)

Drum marking

In this mo del, a toner patch im age is for med in the sa me posit ion on the photoconductor drum surface to improve the accuracy of the process control. A marking is provided on the drum and the marking is sensed before forming a toner patch image. If the marking level is not sensed, the devel oping lamp blinks and the trouble c ode (F2-32) is displayed.

6mm x 7mm

Basic struct ure

Photoconduct or drum: The 50mmφ ground plate of the OPC

Blank lamp: The non-image area is exposed by the

Discharg e lamp: Eight bulbs cast ligh t over the drum sur-

Cleaning mechanism: The cleaning blade removes the toner

Main corona: The saw teeth corona charge method is

Enforced separation mechanism:

5 – 15

drum is on the rear frame side of the drum unit so that it contacts the drum locator pin.

light from the blank lamp to erase the positive potential outside the drum CTL. Use of the latchet simplifies the lamp position adjustment.

face to erase t he positive po t e ntial in CTL . Ventilation hole provided in the drum frame releases heat from bulbs.

remaining on the drum surface. The blade always rests on the drum surface.

used. Use of the screen grid maintains the even charge potential over the photoconductor surface.

Using tw o pieces of separat ion pawl, the copy pa per st uck over t he dru m surfa ce is forced to separate from the drum surface.

Waste toner transport mechanism:

The waste toner is passed through waste toner transp ort scre w 1 and wast e toner pipe 2 to waste toner bottle 3. Waste toner bottle 3 is rotated by the main drive gear via gear 4 to transport toner evenly. When the waste toner bottle is full of waste toner, the rotatio n torque of gear 4 is increased to escape gear 5 in the arrow direction A, and switch 6 is turned on at the same time to light the waste toner replacement lamp.

5. TRANSPORT/FUSING SECTION

1) General

This model allows transport of paper of max. A3 (11" x 17") and min. A5 (8 1/ 2" x 5 1/2"). After images are transferred on the paper, the paper is separated from the drum by the separation pawl and transported to the fuser section by rotations of t he resist r oller and the tran sport belt. The dru m separation pawl is provid ed under the p rocess unit. It is made by turning on (separating) the solenoid inside the main drive unit.

2) Basic compo si tion and functions

1 Transport belts (2pcs)

The transport belts are provided with notches to hold paper rear ends.

Paper

Feeding direction

Transport belt

6. Fusing paper exit section

1 Upper heat roller

The upper heat roller is teflon-coated.

2 Lower heat roller

A silicone rubber roller is used.

3 Separation pawl

The upper heat roller is equipped with four pawls which are teflon coated to reduce friction. the lower heat roller is equipped with two pawls.

4 Upper/lower separation function

The upper and lower heat roller sections are separated by rotating operations with the transport roller as a fulcrum, providing better serviceability.

5 – 16

5 Drive system division

The fuser unit is rotated by the main drive unit. In case of manual rotation of the fuser unit to remove paper jam, however, excessive loads may be applied to the gears. To prevent against this, the pressure of the upper/lower heat rollers is reduced when the machine clamshells are opened. In addition, the fusing gear is so constructed that the drive is not transferred to the drive system.

Transport roller (upper)

Transport roller (lower)

PS roller

Multi manual insertion paper feed unit (Option)

Paper feed unit

Proccess unit

Paper feed rive unit

Main drive unit

Cleaner unit

Transport unit

Main motor

Fuser unit

Paper exit roller

Thermo control

Thermistor

Heat roller surface temperature detection

7. High voltage section

1) General

There are three kinds of coronas; the main corona, the transfer corona, and the separation corona. The main corona employs the scorotron system, where the drum surface is evenly charged with negative charges controlled by the screen grid between the corona and the drum. The transfer corona is used to transfer toner images on the drum to th e cop y pape r. A high, negat ive voltag e is app lie d to the rear side of the paper. The separation corona applies AC corona to the copy paper to eliminate potential difference with the drum to allow separation of th e paper. The o utput vol tage of t he main ch arger and the transfe r charger is supplied by transformer 1. The feedback current from the transfer charger is controlled to be constant and outputted to the main charger.

2) Basic composit i on

1 Main (charging) corona – High voltage transformer (MHVG)

Grid voltage Developing bias voltage Standard mode –750V Photo mode –500V –200V TSM mode –650V

2 Main transfer corona – High voltage transformer (THVG)

–41µA (Electrode sheet fron t-rear balance di fference: max. 7.0µA)

3 Separation corona – High voltage transformer (SHVG)

AC4KV ±0.1KV

CPU

Heat r olle r

Heater lamp

The heat roller is heated by the heater lamp. (When the heat roller surface temperature is 190 C˚ or lower, the heater lamp is actuated)

(Heater trouble) Self diag display

Thermostat

Contact open (*)

Abnor m al h i g h temperat ur e

• Abnormally high temperature (H3) 240°C or upper

• Abnormally low temperature (H4)

• Thermistor disconnection (H2)

* When the ther mostat contac t is open, it is re quired to press th e

reset button in the upper side of the thermostat. (The contact is not reset automatically.)

5 – 17

[6] DISASSEMBLY AND ASSEM BLY

The descriptions are divided into the following sections.

1. Paper feed section

2. Transport section and power section

3. Fusing section

4. Optical system

5. SPF section

6. Drum section

7. Developing section

8. Operation panel section and intermediate cabinet

9. Major parts on the frame side

10. Manual multi paper feed unit

1. Paper feed section

1-1. Paper feed unit

1 Open the front cover and lift up the upper clamshell. Remove two

fixing screws of the manual paper feed section, and remove the manual paper feed section.

(Note for assem bly)

1) There is the 8-pin connector on the back of the rear frame side. When assembling it, carefully insert.

2) The belt must be on the paper feed unit gear and the resist roller gear.

1-2. Paper feed roller ass’y removal

1) Remove the rear frame side electromagnetic clutch connector.

2) Remove the front frame side stopper and the bearing.

3) Remove the roller release arm spring from the paper feed frame.

2 Remove the four fixing screws of the paper feed unit, and lift the

rear frame side of the paper feed unit and remove it. (Since there is the 8-pin connector on the back of the rear frame side, it requires some force to remove. Carefully pull it out straight.)

4) Remove the rear frame bearing, and one side of the paper feed roller ass’y will be disengaged. To remove the ass’y completely, remove the E-ring.

(Note for assem bly 1)

With r oller rel ease arm s pring A hooke d on th e spring notch, att ach the pa per feed r ol ler a ss ’y to the pa per feed unit, and ho ok the spring on the paper feed frame.

6 – 1

(Note for assem bly 2)

When a tta ching the pa per f eed sect ion rolle r as s’y, adjust so t hat t he paper fee d roller clutch an d the PS fron t roller ass’y clutc h projec tion face toward the paper feed side.

1-4. Separation roller

1 Remove the paper feed unit and remove the separation roller.

1-3. PS front roller ass’y

1 Remove the paper feed unit. (For the details, refer to the 1-1.) 2 Disengage the hook section of the front frame side bearing,

remove the connector on the rear frame side, and remove the PS front roller ass’y from the paper feed frame.

1-5. Paper feed roller, take-up roller

1 Remove the paper feed roller, and remove the take-up roller.

2 Remove the roller holder, the stop ring, the bearing, and the paper

feed roller.

6 – 2

(Note for assem bly)

Attach the paper feed roller so that the one-way clutch is on the rear frame side. (Be careful of the direction.) Attach the roller holder as shown below.

One-way clu tch side

4 Remove the clutch and the gears as shown below.

(Note for assem bly)

1) Attach so that the resist roller clutch projection is on the paper exit side as shown in the figure below.

2) Arrange the cable and the power grounding wire from the resist roller clutch as shown in the figure below.

3) Hook the hook section of the TC case as shown below.

2. Transport unit

2-1. Resist roller, transfer roller

1 Open the front cover. 2 Release two lock pawls of the TC case, and lift the front side of

the TC case to remove.

3 Remove the hook of the front frame side bearing, and lift it up to

remove it toward the upper frame side. Remove the rear frame side connector, and slide and remove the resist roller ass’y toward the rear frame side.

TC/SC case

4) When attaching the resist roller ass’y to the copier, attach over the upper side of the PS roller lower mylar, then rotate the roller to set the mylar to the normal position. (If the mylar is deformed, it may cause paper jam. Replace it if deformed.)

PS mylar

6 – 3

2-2. Transport belt

1 Remove the fusing unit. 2 Remove the TC case. 3 Disengage the transport belt drive shaft holder on the TC case

side, then disengage the drive shaft on the paper exit side and remove the belt.

(Note for assem bly)

1 There is a mark ( î ) on the transport belt. Set so that the tip of

the mark faces toward the paper exit direction.

2 Be careful of the installing direction of the transport belt drive

shaft.

4 Remove two connectors from the unit.

5 Remove the stop ring and remove the unit.

3. Fusing section

3-1. Fusing uni t removal

1 Open the front cover. 2 Push the open/close lever down to the right side, and slowly open

the upper unit.

3 Remove the fixing screw of the fusing connector cover and

remove the cover.

(Note for assem bly)

When removing the unit fro m the copier, ba careful not to scratch the photoconductor drum and the lower heat roller. Be careful not to break the actuator of the paper exit sensor (POD).

6 – 4

3-2. Heater lamp replacement

1 Remove the fusing cover fixing screw (1 pc.), and slide the cover

to the front side to remove.

2 While pressing the Fasten terminal projection connected to the

thermostat, remove the lead wire from the connection section.

3 Remove the fixing screw of the lamp holder on the upper side of

the rear frame, and remove the holder.

3-4. Upper separation pawl replacement

1 Remove the fusing unit, and remove the cover. 2 Put the fusing unit so that the paper guide is on the lower side of

the fusing unit (the separation pawl is on the upper side).

3 Remove the tension spring, hold the separation pawl tip and

remove it from the supporting section, and remove it from the unit by tilting.

For assembly, reverse the disassembly procedures.

4 Pull out the heater lamp from the front frame side.

For assembly, reverse the disassembly procedures.

3-3. Upper heat roller ass’y removal

1 Remove two fixing screws of bearings of the front and the rear

frames.

2 Push the paper guide down to the paper exit side and separate

the separation pawl from the roller and fix it.

3-5. Lower heat roller replacement

1 Remove the fusing unit. 2 With the lower separation pawl upright, slide it to the rear frame

side and keep the lower separation pawl upright.

3 Remove the lower heat roller together with the bearing.

For assembly, reverse the disassembly procedures.

3 Rotate the bearing fixing screws about 45 degrees downward and

remove the ass’y.

For assembly, reverse the disassembly procedures.

(Note for assem bly)

Assemble so that the lower separation pawl is on the upper side of the lower hea t roller. (At that time, return th e separation pawl which was set upright in procedure (2).)

6 – 5

3-6. Lower separation pawl replacement

1 Remove the fusing unit. 2 Remove the lower heat roller, after removing the lock panel.

3 Remove three screws and remove the lower separation pawl unit.

3-7. Thermistor/thermostat removal

1 Remove the fusing unit. 2 Remove the fusing cover, and remove the thermistor/thermostat.

5 Remove the tension spring, hold the separation pawl tip to remove

it from the supporting section, and remove it by tilting.

* Note for assembly

• Check that the thermistor center is in contact with the heat roller.

• Clean the thermistor surface with alcohol to remove foreign

materials.

4. Optical system

The o ptical system is an in tegrated f inish produc t delivered b y the maker as stated in t he previous se ction. The r e pl acement p roc edures for the major parts in the optical system are described here.

1) Copy lamp replacement

1 Remove the OR guide, and remove the table glass. (2 screws) 2 Slide the copy lamp unit to the notch at the rear of the upper

cabinet. Push the copy lamp electrode (section A) in the arrow direction B, and remove the lamp. Do not move the optical adjustment plate. (If it is moved, the light balance will go wrong.)

Note: Be careful of the installing direction of the copy lamp.

6 – 6

(B)

2 Remove the operation panel, the upper cabinet R, and the right

cabinet.

Optical adjust ment pl ate

Install so tha t the pr ojecte d porti on of t he copy lamp is ne ar the re ar side as shown above.

2) Mirror base wire replacement and adjustment

A. Copy lamp unit remova l

Remove OR guides R/L, and remove the table glass.

3 Remove the dark box cover upper.

4 Manually move mirror base B. (Within the range where the wire

fixing plate fixing screw can be removed.)

5 Remove the wire fixing plate in the front/rear frame side of the

copy lamp unit, and remove the wire from the side plates F/R.

6 Remove the harness from the copy lamp unit. 7 Rotate the copy lamp unit counterclockwise to remove.

6 – 7

B. Mirror base wire removal

Remove the upper cabinet L, and the left cabinet.

3 Rotate the mirror base B counterclockwise to remove. 4 Disconnect the connector from the copy lamp unit on the rear

frame side and from the No. 2/3 mirror unit.

5 Rotate the No. 2/3 mirror unit counterclockwise and remove.

2 Remove the mirror wire spring from the groove on the left side of

the optical base plate.

3 Remove the mirror base wire from the winding pulley.

(Remove he wire fixing screw.)

D. No. 2/3 mirror un it ( mirror base B) assembl y

Reverse the above procedures.

E. Mirror base wire stretching

Check th at the wir e groov e in the front wind ing pulle y is ali gned with the wir e groove in the re ar winding pull ey. (If there is too much a shift in the circumference, loosen two pulley fixing screws, and visually fit the positions and fix.

C. No. 2/3 mirror un it ( mirror base B) removal

Move the mirror base B to the center between the positioning and

the optical base plate left surface.

2 Lift the front side of mirror base B and separate it from the rail.

(The front side only)

6 – 8

1 Hook the metal fixture of the mirror base wire on the optical base

plate hook.

2 Pass the mirror base wire along the groove outside the double

pulley. <Note> At the time, put the No. 2/3 mirror unit on the mirror base

positioning plate. Hold it so that the winding pulley groove is on the upper side, and wind the wire.

4 Pass it under the L pulley supporting plate and wind it around the

fixed pulley.

5 Pass it along the groove inside the double pulley. 6 Pass in through the fixed pulley. 7 Hook the mirror base wire spring on the groove at the left of the

optical base plate. (Same in the front and the rear side.)

4 6

F. Mirror base wire fixing

2 Shift the 9th winding tip of the mirror base wire from the pulley

Manually turn the mirror base drive pulley to bring the mirror base B into contact with the mirror base positioning plate.

screw hole section.

3 Fix the mirror base wire to the pulley with the mirror base wire

fixing screw.

4 Return the 9th winding tip of the mirror base wire to the original

position. (Perform the same procedure for the front frame side and the rear frame side.)

(Note) After replacing the mirror base drive wire, perform the vertical

skew adjustment, the focus adjustment, and the horizontal skew adjustment.

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

(Mirror base B positioning)

This is to adjust the parallelism of mirror base B and the drum surface and the original surface. This adjustment must be performed in the following cases:

• When the mirror base drive wire is replaced.

• When mirror base A or mirror base B is replaced.

1 Manually turn the mirror base drive pulley to bring the mirror base

B in contact with the mirror base positioning plate. If the front side and the rear side of the mirror base B make contact with the mirror base positioning plate simultaneously, the parallelism of the mirror base B is proper, and there is no further adjustment.

Mirror base B

Mirror base positionin g pl ate

No.2/3 mirror un it

6 – 9

2 If the parallelism of the mirror base B is improper as shown in the

figure below (one side of the mirror base B is in contact with the positioning plate and the other side is not in contact), perform the following procedure.

3 Loosen the mirror base drive pulley fixing screw on the side where

the mirror base B is not in contact with the positioning plate.

4 Manually rotate the mirror base drive pulley on the side where the

mirror base B is not in contact with the positioning plate to bring the mirror base B into contact with the positioning plate.

4) Copy lamp unit installation (Mirror base A

positioning)

This adjustment must be performed in the following cases:

• When the mirror base drive wire is replaced.

• When the mirror base A or B is replaced.

• When any part in the dark box is replaced.

When installing the mirror base, reverse the removal procedure of (2)-A.

1 Put the mirror base A in the copier. Pass the mirror base drive

wires in the front frame side and the rear frame side through the clearance between the mirror base A and the mirror base wire fixing plate. Do not tighten the mirror base A wire fixing screw at that time.

2 Bring the mirror base B into contact with the positioning plate, put

a flat jig (such as a scale edge) onto the right surface of the optical base plate (paper feed side), press the projection of the copy lamp unit onto the jig and fix it with two screws.

(Note) When tightening the copy lamp unit fixing screws, be sure to

press the projection onto the scale.

Horizontal scales

5 Tighten the mirror base drive pulley fixing screw. 6 Manually rotate the mirror base drive pulley to separate the mirror

base B from the mirror base positioning plate once, then bring it into contact with the positioning plate. Check that the front side and the rear side of the mirror base B make contact with the positioning plate simultaneously.

7 If the condition of 6 is not satisfied, repeat procedures 3

through 6 until the condition is satisfied.

Projections

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

A. No. 4/5 mirror removal

1 Remove the OR guide L and R, the remove the table glass.

6 – 10

2 Remove the dark box cover upper.

3 Remove the right cabinet.

5 Remove the drive springs 4 and 5.

6 Remove the zooming rack of the roll holder unit.

4 Remember the positions of the lens drive shaft attachment plate

(in the directions of A and B) (Inscribe a line).

Inscribed line

* (IMPORTANT) This is to prevent against defective focusing.

(Measurable with a scale.)

7 Remove the lens drive shaft attachment plate.

6 – 11

8 Remove the drive shafts 4 and 5.

* When removing th e No. 4/5 m irror unit, r emember the p ositions

(scales) of the arrow marks of the drive holder 4 and 5.

Zooming rack

6) Lens wire replacement

A. Lens wire removal

1 Remove the OR guide L and R, and remove the table glass.

2 Remove the dark box cover upper.

No.4/5 adjustment screw

No.4/5 drive latch stop s cr e w

No.4/5 dri ve holder

B. No. 4/5 mirror unit assembly

Reverse the above procedures. <Note>

When attaching the lens drive shaft attachment plate, attach it to position 5 in the above description. Fit the arrow positions of the drive holder 4 and 5 as the previous state.

Zooming rack

No.4/5 adjustment screw

No.4/5 drive latch stop s cr ew

3 Remove the lens motor.

No.4/5 dri ve holder

* When the arrow positions cannot be fit:

1 Loosen the zooming rack screw and slide it to adjust. 2 Loosen the two screws which are fixing the driver holder 4 and 5

and the drive latch 4 and 5. Adjust with the drive holder 4 and 5. After completion of adjustment, tighten the two screws.

6 – 12

4 Remove drive spring 4 and 5.

7 Remove the drive wire spring and the wire hook from the lens

carriage boss.

L drive pulley

Lens unit

5 Remove the E-ring which is fixing the roll holder drive shaft, and

remove the roll holder unit.

6 Remove the zooming cam and the zooming cam drive gear (which

are fixed with screws).

Wire SP

Wire hook

8 Remove the L pulley and the L drive pulley from the lens wire.

B. Lens wire stretching

1. This procedure is performed in t he following case .

(1) When the lens unit is removed. (2) When No. 4/5 mirror drive unit is disassembled. (3) When the copy is out of focus because relative position of the lens

unit and No. 4/5 mirror unit is shifted by moving the lens unit itself back and forth without turning the L drive pulley.

* In o rder to mo ve the le ns unit of th is machine back and for th in

servicing, b e sure to tu rn the L drive pu lley. (If the lens unit its elf is moved, the wire may slip at the L drive pulley and the relative position of t he le ns un it and No. 4/5 mirr or uni t is shifte d, result ing in improper focusing.)

L drive pulley

Lens unit

6 – 13

2. Procedures

Manually move the lens carriage unit to fit the lens carriage hole

with the optical unit frame hole (which is not the home position hole but the reduction side hole). Insert a pin into the holes, fix the lens unit, and stretch the wire.

Lens carriage unit

2 Under the above state, fit the zooming cam drive gear hole with

the No. 4/5 drive unit base hole A (by inserting a pin, etc.), and insert the zooming can drive gear into the shaft.

4 Manually turn the zooming can drive gear to fit the zooming cam

drive gear hole and No. 4/5 mirror drive unit base hole B.

Zooming cam

Hole

drive gear

No. 4/5 mirror drive uni t b ase

Hole B

Zooming cam dr i ve g ear

Shaft

Hole

Hole A

Hole B

3 Remove the pin which fixes the lens unit and the zooming cam.

Zooming cam dr i ve g ear

5 Install No. 4/5 mirror drive shaft unit and the rack.

* When installing the rack, be sure to fit No. 4/5 mirror unit projection

with No. 4/5 mi rror drive shaft unit hol e.

6 – 14

6 Loosen the zooming cam screw, and fit the mark of zooming cam

drive gear with the mark of No. 4/5 drive shaft.

Zooming cam

Zooming cam gear

Do not mov e the z ooming c am gea r at this time.

∗

5. High voltage section

Clean th e M C case, and the TC/SC case every 50K copies. Clea n the screen grid, the charging plate (saw teeth), and the TC/SC wire every 50K copie s, and replace them every 100K co pie s.

5-1. Main charger (MC) unit

1 Open the front cover. 2 Hold the MC unit lock section, and pull out the MC unit.

Mark

* After this procedure, be sure to perform the optical system adjust-

ments (focus adjustment, etc.). (Refer to [7] ADJUSTMENTS.)

7) Lens unit replacement

A. Lens removal

Remove the lens wire. (Refer to the procedure of "A. Lens wire

removal" in 16) Lens wire replacement.)

2 Hold the lens drive shaft with radio nippers and remove it.

Notch in the optical base plate.

3 Loosen screws A and B, and remove screen grid E.

(When attaching the screen grid, tighten screw B until the mark- ing position F of grid holder C in the above figure is aligned with marking position F of MC holder D, and tighten screw A.)

3 Remove the lens drive shaft from the notch in the optical base

plate. The lens unit is removed at that moment.

B. Lens unit installation

Reverse the disassembly procedures. (Refer to (6)-B. Lens wire stretching.)

6 – 15

4 Remove the screw and remove the charging plate (saw teeth)

ass’y.

(Cleaning/replacement and note)

1 When attaching the screen grid, be careful not to deform and dirt

the screen grid. Check that the screen grid is securely in position.

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

1 Open the font cover, open the body up. 2 Push TC/SC unit pawl sections A (2 positions) and lift the front

side and pull it out.

(Cleaning/replacement and precautions)

1 Set the charger SP length to 17 ±1.0mm.

2 Be careful not to deform the saw teeth edge of the saw teeth

ass’y.

3 Do not touch the inside (saw teeth ass’y) of the MC case, the

screen grid, and the saw teeth.

4 To clean the MC saw teeth, push styrene foam onto the saw teeth

at right angles and remove dirt.

17 1.0

2 The charger wire must be free from distortion and deformation,

and must be in the wire positioning groove of each holder.

3 The charger case must be free from oil, dirt or adhesion of foreign

material.

3~5mm

4 Clean the wire with alcohol.

6 – 16

5 When installing the unit to the body, check that the grounding

spring is in contact with the TC/SC case (metal section) on the rear and the front sides. (Visually check, and push the center of the TC/SC unit to check that it can be moved up and down.)

Front

TCUN

Rear

6-2. Waste toner bottle replacement (required when

waste toner full detection/maintenance)

1 Take out the process unit as shown above,

<Note> If the unit is removed by holding the toner transport pipe,

toner is spilled. Avoid this.

2 Remove the bottle cover. (2 screws)

Front pawl

Base plate

Rear pawl

6 Transfer mylar lower

TC mylar lower attachment reference

0~0.5

1.5 0.5

1.0 0.5

6. Process section

6-1. Process unit

1 Open the front cover, remove the developing unit, and open the

clamshell.

2 Remove process cover A. (Loosen the screw and release the

lock pawl to remove.)

3 Loosen two blue screws which are fixing the unit. Remove one

screw, disconnect one connector, and remove unit B. (Do not hold the toner transport pipe.)

<Note> Remove the developing unit in advance.

3 Rotate waste toner bearing 1 A 90 degrees counterclockwise.

Hole the base of toner transport pipe B and pull it out. (At this time, toner may be spilled. Put a sheet under the pipe.

Lock pawl

Insert a screwdriver to remove the lock pawl.

6 – 17

4 While pushing waste toner bottle in the direction of A and lift it

and remove.

(Note for assem bly/maintenanc e)

As shown in the figure below, attach so that two projections of

gear 19T g are on the rear frame side (on the screws supporting plate f side).

6-3. Drum (Replace every 60K copies)

1 Remove the process unit from the copier. (Refer to 6-1.) 2 Loosen two blue screws which are fixing the drum, rotate the plate

slightly to the right and pull it out.

3 Remove the drum.

<Note> Be careful not to scratch the drum.

6-4. Blank lamp unit (Clean every 60K copies.)

1 Remove three blue screws which are fixing the process unit

holder, slide the holder and remove it.

2 Tighten the blank lamp unit position adjustment screw completely,

and remove the unit rear side, then loosen the screw.

2 Replace the waste toner bottle when waste toner full is detected

or at 50K maintenance. At this time, clean and remove the waste toner from waste toner pipe A.

3 Remove two connectors of the blank lamp PWB, and remove the

blank lamp unit.

<Note> When the unit is installed or replaced, adjust according to

"Blank lamp position adjustment" in [7] ADJUSTMENTS.

6 – 18

6-5. Discharge lamp unit (Clean every 60K copies.)

1 Remove three blue screws which are fixing the process unit

holder, slide the holder and remove it.

2 Remove the discharge lamp unit. (one screw, one connector)

6-6. Cleaner blade (Replace every 60K copies.)

1 Remove the holder from the process unit. (3 blue screws) 2 Remove the cleaning blade. (3 blue screws)

6-7. Drum separation pawl (Replace every 60K

copies.)

Slide and remove the blue pin to remove the separation pawl. Replace the st ar-shape washer with a new one if it is worn down.

6-8. Process control PWB (Clean the sensor

section every 60K copies.)

1 Remove the holder from the process unit (3 blue screws), and

remove the connector of the process control PWB.

2 Remove the holder of the process control PWB (2 screws), and

remove the PWB (2 screws).

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

section every 60K copies.)

Remove the holder from the process unit (3 blue screws), and remove the marking sensor PWB. (1 screw).

6-10. Toner reception seal (Replace every 60K

copies.)

Remove the drum and remove two screws to remove the seal.

6 – 19

7. Developing secti on

A. DV side seals F/ R rep lacement (Replace every 120K

copies.)

1 Remove two screws which are connecting the hopper section and

the developing unit, and separate them each other.

Fixing screw

Toner hopper

Developing unit

B. DB blade replacement (Replace every 120K copies.)

Remove the old DV blade from the DV cover. (Remove the duplex

tape.)

2 Attach th e new DV blade with t he pasteb oard as sh own below.

(Attach the DV blade to the reference of A and the inscribed line ( 0.2). Do not allow extrusion from the edge. Do not allow covering the inscribed line. The allowable reference shift is within

0.5mm from the inscribed line. Attach the sheet without being wavy.

DV cover

DV blade

2 Replace the developing unit side seals F/R as shown below.

(Side seal R attachment reference)

(Side seal F attachment reference)

Note: Since the developing side seals are in the vicinity of the drum,

be careful of peeling off and defective attachment.

3 Remove the base pasteboard from the DV blade.

Note: If the pasteboard is not removed, the drum is scratched.

C. V ring attachment

Be carefu l of the direc tion of the V ring when at taching it t o the MG roller and the MX roller.

V ring

Section A

V ring

(MG roller)

(MX rolle r)

V ring

Section A

1 As shown above, be careful of the direction of the V ring. 2 Do not allow clearance at section (A) between the V ring and each

roller.

3 Attach the MG roller and the right V ring as shown in the figure.

(3.0

)

−0

Magnet fixing shaft

@ Note: When attaching the MG roller, put the milled surface up.

6 – 20

MG roller

φ6.5

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

shaft attachm ent

• Be careful of the stirring shafts A and B attachment positions.

Stirring shaft B

8.Operation panel/intermediate cabinet

1 Open the front cabinet. 2 Remove two screws A, two screws B, and two harnesses con-

nected to the operation panel unit.

2 Remove the operation panel unit. 3 Remove the process cover unit, remove six screws C and two

connectors, and remove the intermediate cabinet.

Stirring shaft B

Attach so that the angle between stirring shaft A and B is 90 degrees.

• When attaching the toner hopper drive gear (31T), be careful of

the E-ring stop position as shown below. (If the E ring is on the milled surface, it is apt to disengage.)

31T gear

9. Frame major parts

9-1. Cooling fan motor replacement

A. Cooling fan motor removal

Remove the original cover, the original guide, the upper cabinet

left, and the upper cabinet right.

6 – 21

2 Remove the upper cabinet and the rear cabinet.

3 Remove the cooling fan from the CFM duct. (2 screws, 1 connec-

tor)

<Note> When attaching the cooling fan motor, put the harness sec-

tion B and the CFm duct groove section A in the same direction, and pass the harness in the groove. Check that the fan center label is on the back when viewed from the rear of the machine. Check that air blows in the arrow direction (toward the machine).

9-2. Power unit

1 Remove the rear upper and lower cabinets. 2 Remove two connectors, hold the PWB fixing bush with radio

nippers and slide it toward the paper exit side to remove.

B. Cooling fan motor

9-3. Tray size detecting PWB

1 Remove the rear upper/lower cabinets. 2 Remove the power unit. 3 Remove one fixing screw, one connector, and remove the tray

size detection PWB.

Label

Reverse the removal procedures.

6 – 22

9-4. Main PWB unit

1 Remove the rear cabinet upper. 2 Disconnect all the connectors (6 connectors) connected to the

main PWB.

3 Remove the main PWB plate (one screw). 4 Remove the main PWB from the plate. (2 screws)

9-5. AC power PWB

1 Remove the main PWB unit. (Refer to 9-3.) 2 Remove the rear cabinet lower. 3 Remove all the connectors (11 connectors) of the AC power PWB

and remove one grounding wire connected between the AC power PWB and the copier chassis.

2 Remove the ventilation fan motor (2 screws).

3 Remove the process unit. Insert a screwdriver from the process

unit position into the copier to push out the oZone filter.

4 Remove two screws which are fixing the AC power PWB, and

remove the PWB.

9-6. Ozone filter (Check every 60K copies, and

replace every 300K copies.)

1 Remove the upper cabinet left, and the left cabinet. (5 screws)

6 – 23

10. Multi paper feed unit

10-1. Separation roller

1 Remove three screws and remove the paper feed/take-up roller

ass’y.

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

1 Remove the manual feed arm spring, the bearing stopper, and the

E-ring. (At this time, slide the bearing from the guide section in advance.)

2 Lift the manual feed stopper, and remove the manual feed shaft

ass’y.

3 Remove the take-up roller.

2 Remove the separation roller.

@ When attaching the roller, engage the D-cut section with the

groove.

4 Remove three E-rings, and remove the manual feed shaft. then

the paper feed roller will come off.

(Note for assembly) The pa pe r fe ed roller is provided wi th t h e o ne - w ay clu tc h, which must be installed in the proper direction. Attach so that the side where there is the one-way clutch (specified with "LOCK") is on the front frame side.

6 – 24

[7] ADJUSTMENTS

1. Developing section

1-1. Developing doctor clearance adjustment

a. If the clearance between the developing doctor and the MAG

roller is improper, the following trouble may occur.

• Insufficient coy density

• Background copy

• Toner splash

(1) Remove the developing unit from the copier. (2) Loosen four screws (A) which hold plate D fixed. (3) Insert two clearance gauges of 0.6mm into the clearance be-

tween plate D and the MAG roller. <Note> For insertion of the clearance gauges, refer to the

figure below.

(4) With two clearance gauges inserted, gently press plate D and

tighten four screws (A).

(5) Check that the clearances at two points 50 ∼ 80 mm f rom th e

both ends of the developing doctor are within the specified range (0.6 ± 0.03mm).

<Note 1> When inserting the clearance gauges, be careful

not to scratch the plate D and the MAG roller.

<Note 2> When adjusting or checking, be careful not to allow

foreign materials (oil, etc.) to attach to the MAG roller sleeve.

(6) After adjustment, apply screw lock to the four screws (A).

50mm

30mm

Clearance gauges

0.6mm

0.6 ± 0.03mm

30mm

Plate D

MAG roller

50mm

1-2.

Developing magnet roller main pole position adjustment

a. If the MAG roller main pole position is improper, the following

troubles may occur.

• Insufficient copy density

• Toner splash

(1) Remove the developing unit from the copier. (2) Tie a thread to a needle as shown below. (3) Hold the thread and bring the needle close to the MAG roller. (4) Mark the contact point of the thread on the MAG roller sleeve

surface.

Marking

7 – 1

(5) Measure the distance from the marking position to the bottom

(A) of the developing unit and check that the distance is

17.6mm. If the distance is not as specified above, loosen the MG adjustment plate fixing screw, move the adjustment plate in the arrow directions and perform procedures (3) to (5) again.

17.6mm A

MG adjustment plate

(6) After completion of adjustment, tighten the MG adjustment

plate fixing screw. When tightening, check that the bias terminal is as shown below. After tightening the screw, apply screw lock to it.

2. Optical system

2-1. Adjustment items

1. Lens reference position adjustment

2. No. 4/5 mirror reference position adjustment

3. Vertical copy magnification ratio adjustment

4. Resolution adjustment

5. Horizontal copy magnification ratio adjustment

6. Comparison table of lens values and simulation input values

7. Vertical skew adjustment

8. Horizontal skew adjustment

9. Center shift adjustment

10. Exposure balance adjustment

11. Copy lead edge adjustment

MG adjustment plate fixing screw

MG ad j us t m e nt plate

Bias terminal

7 – 2

2-2. Note for adjustments

1. Only the exposure balance adjustment, the blank lamp adjustment, and the copy lead edge adjustment can be performed individually. For the other adjustments, follow the flowchart below.

1. Mechanical reference position adjustment (without copying) A. No. 2/3 mirror unit parallelism adjustment

Vertical skew copy adjustment --- Manual adjustment

B. Check the following preset values according to the lens focus rank.

Lens reference position adjustment --- SIM 48-01 No. 4/5 mirror reference position adjustment --- Manual adjustment

2. Adjustment while copying

Image distortion

Vertical skew copy adjustment

1. Image distortion,

center shift check

YES

Horizontal skew copy adjustment

Center shift:

Lens center shift adjustment

2. Normal (x 1.00), zooming (x 2.00)

resolution (focus)

check

YES

3. Normal copy

magnification ratio

(vertical, horizontal)

check

YES

4. Exposure balance, blank lamp position,

lead edge variation

check

YES

END

Resolution (focus) adjustment

Normal: Adjust with the No. 4/5

mirror adjustment screw. Zooming: Adjust with the zooming

cam.

Copy magnification ratio adjustment

Vertical copy magnification ratio

adjustment Horizontal copy magnification

ratio adjustment

Exposure balance adjustment Blank lamp position adjustment

Copy lead edge adjustment (Including the void area adjustment.)

7 – 3

2-3. Adjustment of each section

A. Lens reference position adjustment

In this model, the reference value according to each lens characteristics must be entered. With this value, the lens home position is determined.

(1) Execute simulation 48-01

• Perform the following key operation.

—— ——8—

C 0/ 4

———

PSW 1 PSW

"A" is dis played on t he thi rd digit of the copy quantit y display, and the previously set value or 50 is displayed on the second and the first digits.

Numerals

0/ C

• Substitute the "O – L" value (variation in the distance be-

tween the original and the lens) on the lens value label attached to position B shown in the figure below into the following formula, and input the obtained value.

Be sure to check that the magnification ratio cam is at the home position as shown in the figure below.

B. No. 4/5 mirror reference position adjustment

(1) Remove the external fittings.

B (Len s value label)

50 – {(O – L value) × 5} = Correction reference value

51 50 49

Lens

(2) Loosen two screws (A) which are fixing the No. 4/5 mirror and

the No. 4/5 mirror drive holder to the No. 4/5 mirror holder.

No.4/5 drive rack

Screw A

No.4/5 drive holder

No.4/5 mirror holder

<Example> When the lens value is +1.2;

50 – (1.2 ×5) = 44 (Correction reference value = input value)

7 – 4

(3) Check to confirm the lens value specified on the lens value

label.

(4) Insert a screwdriver into hole (P) in the right rear side (paper

feed side) of the optical base plate, and adjust the adjustment screw. The scale on the zoom base at section Q in the figure below determines the position of the No. 4/5 mirror corresponding to the lens value.

<Example> When the lens value is +1.2, loosen the adjustment

screw and adjust so that the arrow section of the No. 4/5 mirror drive holder points to the zoom base scale at +1.2. Turning the adjustment screw clockwise moves the No. 4/5 mirror drive holer arrow section in the (–) direction, and turning it counterclockwise moves the arrow section in the (+) direction.

C. Vertical copy magnification ratio adjustment

Be sure to check that mirror bases A, B and C are in parallel and that the focus is proper before executing this adjustment. This adjustment must be performed in the following cases.

• When the lens home position sensor (LHPS) is replaced or its

installation position is changed.

• When the lens is replaced.

• When the mirror base is replaced or its installing position is

changed.

• When the main PWB is replaced.

• When the EEPROM inside the main PWB is replaced.

No.4/5 sdjus tment

No. 4/5 mirror drive holder arrow se c tion

Zoom base

(-) direction (+) direction

One sc ale = 1mm

screw (shaded p ortion)

(1) Put a scale on the original table as shown in the figure below.

A4 (11" x 8½") paper

Scale

(When a 100mm scal e is used as the or ig inal.)

Paper f eed direction

1/2mm

mm 1/2mm

Reference Comparison point

(2) Make a normal copy (100%) on an A4 (11" ×81⁄2") paper. (3) Compare the scale image length and the scale length.

100 110 120 130

JAPAN

110

140

150

Copy

HARDDENCD STAINLESS

Shizuoka

HARDDENCD STAINLESS

Shizuoka

Original scale

7 – 5

(4) Calculate the copy magnification ratio.

Copy magnification ratio =

(5) Check that the obtained copy magnification ratio is within the

specified range (100 ± 0.8%). If it is within the specified range, go to procedure (7). If not, execute simulation 48-1.

Copy imag e siz e

Original siz e

× 100%

• Perform the following key operation.

—— ——8—

C 0/ 4

———

PSW 1 PSW

"A" is displayed on the third digit of the copy quantity display, and the previously set value or 50 is displayed on the second and the first digits. (Refer to "D-1. Lens reference position adjustment.")

(6) Perform the magnification ratio adjustment according to the

flowchart below.

(9) Adjust the copy magnification ratio according to the flowchart

shown in (6). (10) Make a copy at 50%. (11) Check that the copy magnification ratio is within the specified

range (100 ±0.9%). If it is in the specified range, the vertical

copy magnification ratio is completed. If not, enter [%] in

simulation 48-1 as follows:

• Perform the following key operation.

—— ——8—

C 0/ 4

———

PSW 1 PSW

"C" is displayed on the third digit of the copy quantity display, and the previously set value or 50 is displayed on the second and the first digits.

Numerals

—

The copy

size i s shorter

than the origin al

The copy

size is longer

than the origin al

END

(7) Copy the scale at 200%. (8) Check that the copy magnification ratio is within the specified

range (100 ±0.9%). If it is within the specified range, go to procedure (9). If not, enter % key in simulation 48-1 as follows:

YES

<Note> After entering a value, press [PSW]

Enter a value greater than the set val u e

• Perform the following key operation.

—— ——8—

C 0/ 4

———

PSW 1 PSW

"B" is displayed on the third digit of the copy quantity display, and the previously set value of 50 is displayed on the second and the first digits.

—

0/ C

(12) Adjust the copy magnification ratio according to the flowchart

shown in (6).

D. Resolution adjustment (Focus adjustment)

Normal copy ratio focus adjustment is made with No. 4/5 mirrors. Enlargement/reduction focus adjustment is made with the zooming cam.

1 Normal copy ratio focus adjustment

(1) Check the "O.L value" on the lens value label of the lens unit,

and fit the reference position of No. 4/5 mirror. (Use the No.

4/5 mirror adjustment screw for positioning. Loosen screw A at

this time.)

Lens value label

Numerals

7 – 6

No.4/5 mirror adjustment screw

(-) direction

(+) direction

1scale: 1mm

Example: In the case of O.L value +1.0, this position is the reference position.

(2) Turn off/on the power to initialize the lens and No. 4/5 mirror

unit. Check the focus in the normal ratio.

(3) If the focus is improper, perform the focus adjustment of the

normal ratio as follows: (3)-1 Make a copy of the test chart on an A4 or 8 1/2″ × 11″ paper. (3)-2 Check the resolution at the four corners and the center of the

copy image. If the resolutions are within the specified range, the adjustment is completed. If not, adjust No. 4/5 mirror adjustment screw. (Loosen screw A at that time.)

(3)-3 If the resolutions are not within the specified range, use the

No. 4/5 adjustment screw to adjust. (Loosen screw A at this time.)

4.5

(Copy)

Check points

2.8

5.0

3.2

5.6

3.6

6.3

7.1

4.0

8.0

9.0

9.1

9.2

9.2 9.2

2 Perform the focus adjustment in the enlargement mode

(200%). (1) Make a copy of the test chart on an A4 or 8 1/2″ × 11″ paper. (2) Check the resolution at the four corners and the center of the

copy image. If the resolutions are within the specified range,

the adjustment is completed. If not, adjust by shifting the rela-

tive position of the zooming can to the drive cam. (3) Turn off/on the power to initialize the lens and No. 4/5 mirror

unit. Check the focus in the enlargement mode again.

Resolution standards (Unit: lines/mm)

Copy center Corners Normal (100%) 5.0 4.5 Enlargement (200%) 5.0 4.5 Reduction (50%) 3.2 2.8

4.5

(Copy)

Check points

2.8

5.0

3.2

5.6

3.6

6.3

7.1

4.0

8.0

9.0

9.1

9.2

9.2 9.2

Screw A

(4) Turn off/on the power to initialize the lens and No. 4/5 mirror

unit. Check the focus in the normal ratio again. Resolution standards (Unit: lines/mm)

Copy center Corners Normal (100%) 5.0 4.5 Enlargement (200%) 5.0 4.5 Reduction (50%) 3.2 2.8

Zooming cam

Zooming cam gear

Do not mov e the zoomin g cam gear a t thi s time.

∗

3 When the zooming can position is changed in 2, check the

focus in the normal mode again. If the resolutions are out of the specified range, perform the focus adjustment in the normal mode again.

* Repeat 2 and 3 until the proper focus is obtained in the reduc-

tion mode (50%) and the enlargement mode (200%).

7 – 7

E. Horizontal copy magnification ratio adjustment

a. This adjustment is performed to meet the displayed magnifica-

tion ratio with the actual one.

b. This adjustment must be performed in the following cases:

• When the main PWB is replaced.

• When the EEPROM in the main PWB is replaced.

• When the mirror motor is replaced.

• When self diag. U2 occurs.

The scanning speed of the mirror base is changed to adjust the horizontal (paper transport direction) copy magnification ratio.

(1) Put a scale on the original table as shown in the figure below,

and execute simulation 48-02. The machine starts warming up and the ready lamp lights up. At the same time, the previously set valu e ( 1 ∼ 99) is displayed. Under this state, make a nor- mal copy and calculate the copy magnification ratio.

(2) Replace the displayed value with the copy magnification ratio

correction rate obtained in (1). (Input value) = (Previously set value) / (Copy magnification ratio correction rate [%]) ×10

(Example) When the previously set value is 25, the input

values of examples 1 and 2 are as follows:

• Example 1: 35 = 25 + (1 × 10)

• Example 2: 15 = 25 + (–1 × 10)

Enter the input value and press the print switch. The value is stored and the ready lamp lights up.

Eg1: Copy A, of which length is shorter than or igi nal

10 20 90 100 11 0

10 20 30 40 50 60 708090 50 100110

Space

120

130 140

Scale

Blank paper

Scale (Origi nal)

100 110

Eg2: Copy B, of which length

10 20 90 100 110

is longer than or igi nal

(3) Cancel simulation 48-02.

Note: Input correction can be made in the range of 1 – 99

(simulation set range).

7 – 8

F. Comparison table of lens values and simulation input values

Lens

display

value

+4.0 30 70 70 +3.9 31 69 69 +3.8 31 69 69 +3.7 32 68 68 +3.6 32 68 68 +3.5 33 67 67 +3.4 33 67 67 +3.3 34 66 66 +3.2 34 66 66 +3.1 35 65 65 +3.0 35 65 65 +2.9 36 64 64 +2.8 36 64 64 +2.7 37 63 63 +2.6 37 63 63 +2.5 38 62 62 +2.4 38 62 62 +2.3 39 61 61 +2.2 39 61 61 +2.1 40 60 60 +2.0 40 60 60 +1.9 41 59 59 +1.8 41 59 59 +1.7 42 58 58 +1.6 42 58 58 +1.5 43 57 57 +1.4 43 57 57 +1.3 44 56 56 +1.2 44 56 56 +1.1 45 55 55 +1.0 45 55 55 +0.9 46 54 54 +0.8 46 54 54 +0.7 47 53 53 +0.6 47 53 53 +0.5 43 52 52 +0.4 48 52 52 +0.3 49 51 51 +0.2 49 51 51 +0.1 50 50 50

050 50 50 –0.1 50 50 50 –0.2 51 49 49 –0.3 51 49 49 –0.4 52 48 48 –0.5 52 48 48 –0.6 53 47 47 –0.7 53 47 47

Sim 48-01

Zoom correction

(Enlargement)

Sim 48-01 — % Sim 48-01 — %

Zoom correction

(Reduction)

—

Lens

display

value

–0.8 54 46 46 –0.9 54 46 46 –1.0 55 45 45 –1.1 55 45 45 –1.2 56 44 44 –1.3 56 44 44 –1.4 57 43 43 –1.5 57 43 43 –1.6 58 42 42 –1.7 58 42 42 –1.8 59 41 41 –1.9 59 41 41 –2.0 60 40 40 –2.1 60 40 40 –2.2 61 39 39 –2.3 61 39 39 –2.4 62 38 38 –2.5 62 38 38 –2.6 63 37 37 –2.7 63 37 37 –2.8 64 36 36 –2.9 64 36 36 –3.0 65 35 35 –3.1 65 35 35 –3.2 66 34 34 –3.3 66 34 34 –3.4 67 33 33 –3.5 67 33 33 –3.6 68 32 32 –3.7 68 32 32 –3.8 69 31 31 –3.9 69 31 31 –4.0 70 30 30

Sim 48-01

Zoom correction

(Enlargement)

Sim 48-01 — % Sim 48-01 — %

Zoom correction

(Reduction)

—

7 – 9

G. Vertical skew adjustment

a. This adjustment is performed when a skew copy is made as

shown below or when a part of the mirror base drive wire or the No. 1/2 mirror base is replaced.

Document Copy

(1) Put an A3 (11" ×17") white paper on the original glass neatly to

the glass holding plate and the front frame side as shown below.

(4) Loosen the fixing screw of the rear frame side mirror base

drive pulley. When La > Lb, rotate the rear frame side mirror base drive pulley in the arrow direction A. (Do not move the flange and the mirror base drive pulley shaft.) When La < Lb, rotate the rear frame side mirror base drive pulley in the arrow direction B. (Do not move the flange and the mirror base drive pulley shaft.)

Mirr or base drive pully (Rotate)

A3-size or 11" x 17" blank paperGlass retaining plate

Apply paper front end to glass retaining plate

(2) With the original cover open, make a normal (100%) copy on

an A3 (11" ×17") white paper.

(3) Measure the width of the black background at the front side

and the rear side.

Align paper s i de ed ge with front frame

Lead edge black background width La Rear edge black background width Lb

Paper feed direction

La Lb

Shaft (Do not rotate)

Pulley fixing screw (Set screw)

(5) Tighten the fixing screw of the mirror base drive pulley. (6) Perform procedures (1) ∼ (3). (7) If La=Lb is not satisfied, perform procedures (4) and (5). (If

La=Lb, the adjustment is completed.) Repeat procedures (1) ∼ (6) until La=Lb is satisfied.

H. Horizontal skew adjustment

a. This adjustment is performed in the following cases:

• When a horizontal skew is made.

• When the mirror base drive wire is replaced or its installing

position is changed.

• When the No. 1/2 mirror base is replaced or its installing

position is changed.

• When the No. 2/3 mirror base rail is replaced or its installing

position is changed.

Document Copy

7 – 10

(1) Make an original for adjustment.

Draw parallel lines at 10cm from the both edges of an A3 or 11" × 17" white paper. (Be careful to draw precisely parallel lines.)

Parallel line Parallel line

10mm

Adjustment procedure (1)

When La>Lb (Lc<Ld): Rotate to increase the height of the front

frame side of the No. 4/5 mirror base unit.

When La<Lb (Lc>Ld): Rotate to decrease the height of the front

frame side of the No. 4/5 mirror base unit. Open the front cabinet, insert a screwdriver as shown below, and turn the eccentric screw to adjust the height of the No. 4/5 mirror base.

No. 4/5 mirror ba se

10mm

Blank paper

(2) Set the adjustment original made in (1) as shown below.

Glass holding plate

Fit the original edge with the

Adjustment original

lass holding plate edge

(3) Make a normal (100%) copy on an A3 or 11" × 17" white

paper.

(4) Measure the distances at four points as shown below:

Hole for screwdriver

<Note> When turning the eccentric screw, remember how much it

is rotated from the original position. When the eccentric screw is turned 36 degrees, the height of the front frame side of the No. 4/5 mirror base is increased or decreased by 2mm and the difference (La – Lb) is varied by 4mm.

If the above adjustment is not effective, then follow the Adjustment procedure (2) .

Adjustment procedure (2)

1 Move the mirror base rail B up and down in the arrow directions

to adjust.

• When La > Lb, shift the mirror base B rail upward by half of

the difference of La – Lb.

• When La < Lb, shift the mirror base B rail downward by half of

the difference of La – Lb.

Paper discharge direction

Mirror base rail handle

Loosen Loosen

Lb Ld

1 scale = 1mm

7 – 11

(Example) When La=12mm and Lb=9mm, shift the paper exit side

mirror base B rail upward by 1.5mm.

• When Lc > Ld, shift the mirror base B rail downward by half of

the difference of Lc – Ld.

• When Lc < Ld, shift the mirror base B rail upward by half of

the difference of Lc – Ld.

(When moving the mirror base rail, hold the mirror base rail handle.)

2 Adjust according to procedure (1) so that La=Lb and Lc=Ld are

satisfied.

3 After completion of the adjustment, turn the mirror base drive

pulley manually to full scan mirror base A and mirror base B, and check that the mirror bases are not brought into contact with each other.

(Note) When the mirror bases are moved extremely, they

may be brought into contact. Carefully avoid it.

I. Center shift adjustment

a. This adjustment must be performed in the following cases:

• The copy (100%) center is shifted from the original center

more than 2mm.

• When any part of the lens rail or the lens unit is replaced.

(1) Make a test chart for center position adjustment. (Refer to the

figure below.)

(5) Remove the document reference plate and the right upper side

cabinet, and remove the document table glass.

Document reference plate

Document table glass

Right upper side cabinet

(6) Loosen the three fixing screws of the optical system unit and

slide the optical system unit to adjust the center position.

Origina l center

(Original)

Draw a line at the center Copy paper

(A4 or 11" x 8½")

Paper transport direction

(2) Set the test chart for the center position adjustment to the

document reference line, and make a normal (100%) copy with an A4 or 11" × 81⁄2" paper.

(3) Check that the copied image line is at the center of the copy

paper.

2.0m m or less

(Cop y A )

Shift

2.0m m or less

(Cop y B )

Shift

Copy image

Copy paper fold

Copy image

(Paper feed direction)

(4) If the error of the copy image line is within the specified range

(0±2.0mm), the adjustment is not required. If not, perform the following procedures.

Optical system

unit

Loosen the screws (3pcs.)

Lens b e aring sid e

(7) After adjustment, set the removed parts in the reversed se-

quence. make a copy of the test chart to check that the center shift is within the specified range (0 ±2.0mm). If the center shift is within the specified range, the adjustment is completed. If not, repeat procedures (2) – (7) until it is within the specified range.

Lens body side

2mm or less

(Copy 1) Move lens is the A direction

2mm

(Copy 2)

or less

Move lens is the B direction

Copy pape r cent er

J. Exposure balance adjustment

a. This adjustment is to provide uniform exposure, and must be

performed in the following cases:

• When the reflector is replaced.

• When the copy lamp is replaced.

• When the exposure adjustment plate is replaced.

(1) Set a half tone paper on the original table and make a half

tone copy at 100%.

(2) If the exposure of the half tone copy is uniform, the adjustment

is not required. If it is varied as shown below, perform the following procedures.

Exposure

Paper discharge direction

insufficient

7 – 12

Half-tone copy

(3) Remove the original reference plate and the right upper side

cabinet, and remove the original table glass.

(4) Move the exposure plates a, b, c, and d in arrows directions A

and B to adjust exposure. Moving the plates in the direction of arrow A makes the copy darker, and moving in the direction of arrow B makes the copy lighter.

Exposure adjustment

plate b Exposure adjustment plate a

Exposure adjustment plate c

Exposure adjustment plate d

(The value displayed before pressing the % key is stored in the memory by pressing the zoom up key.)

Display section: During execution of the simulation, the RRC-A value is displayed on the copy quantity display.

Top digit: Displays A, b, C, d. Lower two digits: Displays RRC-A value, RRC-B value, or void

area value.

(1) Put a scale on the original table.

(Example) If the half tone copy is as shown below, move the

exposure adjustment plate a in the direction of arrow B to balance exposure.

Exposure

Paper

insufficient

discharge direction

Half-tone copy

(5) After adjustment, set the original table glass. Make a copy to

check uniformity of copy density. If the copy exposure is not uniform, repeat procedures (1) – (5).

K. Copy lead edge adjustment

a. This adjustment is performed to provide the maximum effective

copy size, proper void area, improve separation in the photoconductor section, fusing section, and reducing dirt in the fusing section pawls.

b. This adjustment must be performed in the following cases.

• When the mirror home position sensor (MHPS) is replaced or

its installing position is changed.

• When the mirror base is replaced.

• When the resist roller and the resist roller clutch are replaced.

• When the main control PWB is replaced.

• When the ADF is installed or disassembled.

• When the original guides L and R are removed and the glass

is removed.

* The copy lead edge adjustment is performed with simulation 50-

01 and 50-02. When the copy lead edge adjustment is made with simulation 5001: In this simulation, the following keys and the display section have special functions.

Reduction key: Makes the magnification ratio 50%. Enlargement key: Makes the magnification ratio 200%.

• % key:

Pressing the % key changes A → b → c → d → A → sequentially, and the set value corresponding to the display is displayed on the copy quantity display. A: RRC-A set value b: RRC-B set value C: Lead edge void amount set value d: Rear edge void amount set value

Scale

(2) Press keys as follows:

C → ë → 0/◊ → ë → 5 →

0/◊ → PSW → 1 → PSW Simulation 50-01 is executed and the ready lamp lights up. The previously set value (1 – 99) is displayed. (RRC-A content)

(3) Set values A and B to zero, and make copies at 100% and

200%.

• 0/◊ → 0/◊ → % key →

0/◊ → 0/◊ → PSW (A copy at 100% is made.)

• Enlargement key → (Lens shift, ready) → PSW (A copy at

200% is made.)

7 – 13

(4) Measure the distance between the copy paper lead edge and

the copy image lead edge in each copy. Obtain RRC-A and RRC-B values from the following formulas.

If the RRC-A preset value is not proper, the lead edge position varies in each magnification ratio. The RRC-B is to adjust the RRC ON timing for fitting the drum image lead edge and the transfer paper lead edge.

(8) Put a scale and an A3 (11" × 17") white paper on the original

table as shown below.

Scale

2010 30 4 0 60

10 20 30

End of scale image End of scale image

Full-size(100%) copy Enlarged(200%) copy

• La: Led edge shift at 200% (mm)

• L2: Lead edge shift at 1005 (mm)

• RRC-A = 6.151 × (L1 – L2)

• RRC-B = 15.385 × L2 – 7.692 × L1

(5) Enter the RRC-A and RRC-B values obtained from the above

formulas with the 10 digit key pad in the same manner as procedure (3).

(6) Make copies at 200%, 100%, and 50%, and check variations in

the magnification ratios. (About 1.0mm) If there is a considerable variation, repeat from procedure (3).

(7) Make a normal copy and check that the lead edge image loss

is within the range of 0 ∼ 4mm. If the im age loss is outsid e the above range, change the RRC-B value and adjust again until the image loss is within the above range.

102030 40 50 60 708090 50 100 110

120

130140

50mm

A3(11" x 17") Blank paper

(9) Press the zoom key to display "C" in the lowest digit of the

magnification ratio display. (Void amount adjustment mode)

(10) Make a copy and enter the normal copy lead edge void area

adjustment set value so that the black background edge comes to the scale 1 – 3mm of the copy image scale.

→ → PSW With the above key operation, a copy is made and the adjust-

ment value is inputted. When the adjustment value is changed by 1, the void area is changed by about 0.13mm. The greater the adjustment value is, the greater the void amount is.

End void area 1~3mm

Scale image

10 20 3 0 40

10 20 30 40

Image loss 0~4mm

60 70

Full-size(100%) copy

Note: The above image loss range is effective only for

simulation 50-01, and is not the final one.

Solid edge

Paper end

Full-size(100%) copy

7 – 14

(11) Make a normal copy and check that the image loss and the

void amount are within the specified range.

(Specified range)

• Image loss: 0 ∼ 4mm

• Void amount: 1 ∼ 3mm

Void area 0~3mm

Paper end

10 20 30 40

Solid edge

Image loss 0~4mm

(12) Press the clear key and cancel simulation 50-01.

Note: When the RRC-A and RRC-B values are changed

in simulation 50-01, be sure to adjust the copy lead edge void area.

When adjustment is made with simulation 50-02: <Note> The keys and display functions are the same as simulation

50-01. In simulation 50-02, L1 and L2 values can be directly set. It is easy and simple. The void area adjustment is also the same as simulation 50-01.

Scale image

Full-size(100%) copy

[Adjustment procedure]

(1) Put a scale on the original table. (2) C → P → 0/◊ → P → 5 →

0/◊ → PSW → 2 → PSW

With the above key operation, simulation 50-02 is performed and the machine starts warming up.

(3) The lower two digits of L1 value is displayed on the copy

quantity display. The top digit is for data identification.

• L1 : Lead edge shift at 200% (|||mm, 3 digits)

• L2 : Lead edge shift at 100% (✕✕✕mm, 3 digits)

Example of display

• For 42.5mm, the display is 2 5 .

(4) Use the % key and the 10 digit key pad to set A and b values

to zero. Make copies at 100% and 200%.

• 0/◊ → 0/◊ → 0/◊ → % key → 0/◊

→ 0/◊ → 0/◊ → PSW (A copy at 100% is made.)

• Enlargement key → (Lens shift, ready) → PSW (A copy

at 200% is made.)

(5) Measure the distance between the copy paper lead edge and

the copy image lead edge in each copy. Enter L1 and L2 values with the zoom key and the 10 digit key pad. With this operation, RRC-A and RRC-B values in simulation 50-01 are automatically calculated and stored. Input procedure

(Example) When L1 = 24.5 mm and L2 = 15.0mm: Check that the lowest digit of the magnification ratio display is "A," and perform the following key operation.

2 → 4 → 5 ("45" is displayed on the copy quantity display.)

→ % key → 1 → 5 → 0 ("50" is displayed.) → PSW

(6) After this, check shift and image loss, and void amount in each

copy similarly to simulation 50-01.

7 – 15

2-4. Copy density adjustment A. When the copy density adjustment is required:

The copy density adjustment must be performed in the following cases:

• When maintenance is performed.

• When the output current of the main charger and the transfer

charger, the separation charger bias voltage, or the grid voltage is adjusted. (When the charger unit or the high voltage unit is replaced.)

• When the developing bias is adjusted.

• When any part of the AC PWB unit is replaced.

• When the AE sensor is replaced.

• When the copy lamp is replaced.

• When the optical unit is replaced.

• When the optical unit is disassembled, repaired, or adjusted.

• When exposure adjustment plate is moved.

• When the drum is replaced.

• When the main PWB is replaced.

B. Note for copy density adjustment

• The charger output and the developing bias voltage are properly

adjusted in advance.

• The half-tone uniformity is within the limit sample range.

• Sim. 44-01 is set to "7."

(2) Drum sensitivity setting

(1) Execute Sim. 26-07, and check that the top digit of the 9-digit

drum number printed on the flange in front of the drum is displaye d on the copy quantity disp lay.

(2) If the displayed number is different from the drum number,

change the setting with the 10 digit key pad.

(Note) When the 10 digit key pad is used to enter a number, the

display shows only in the range of 1 ∼ 3.

(3) AE sensor level adjustment

(1) Execute Sim. 47.

(The mirror base starts scanning and stops at the AE sensor

level measurement position.) (2) Put several sheets of A3 (11" x 17") paper on the original table. (3) Pre ss the PSW agai n, and the cop y lamp will light up and the

sensor output will be displayed on the copy q uantity display. This

output level is stored.

C. Copy density adjustment procedure

(1) Set the automatic exposure l evel to "3."

(When t he mode sele ct key is pres sed for 5 sec in the photo mo de, the mode is switched to the automatic exposure mode. In this mode, press the exposure select key to set the exposure level to "3.")

COPY DENSIty

AUTO

MANUAL PHOTO

LIGHT DARK

Put several sheets of A3 (1" x 17") paper

7 – 16

(4) Test chart setting

(1) Put several sheets of white paper (Sharp specified paper) of

about 120mm wid e and ab out 420mm long to t he center r eference.

(2) Put the test chart (UKOG-0162FCZZ) as shown below:

UKOG-0162FCZZ

56789

(2) M ak e a cop y.

Check that "6" of the test chart is slightly displayed.

Not copied Slightly copied

<When too light> Make the value displayed on the copy quantity

display smaller.

<When too dark> Make the value displayed on the copy quantity

display greater.

* The range of set values is 1 ∼ 99. * Ent ry nu mber "1" cor resp onds t o a cha nge o f

about 0.33V in the copy lamp voltage.

(3) M ak e a cop y.

When the copy exposure is within the exposure limit sample

range, p r es s the DARK ex posure key t o s et to exposu r e " 5." ("b"

is dis played on the copy quantity d isplay.)

COPY DENSIty

AUTO

MANUAL PHOTO

Test ch ar t comparison table

UKOG-0162FCZZ DENSITY No.

UKOG-0089CSZZ DENSITY No.

KODAK GRAY SCALE

12345678910W

0.1 0.2 0.3 0.5 1.9 0

123419A

SHARP CORPORATION

MODE IN JAPAN

(5) Manual exp osure (ME) mode adjust m ent

1) Normal mode ex posure adjustment

(1) Execute Sim. 46-01.

Exposure "1" in the manual exposure mode is displayed on the exposu re display. "0" of value A is first displayed on the coy quantity display. After sensing the drum mark, the two-digit number corresponding to the sensed mark number is displayed.

COPY DENSIty

AUTO

MANUAL

PHOTO

312

LIGHT DARK

31245

LIGHT DARK

(4) M ak e a cop y.

Check that "2" of the test chart is clearly copied. <When too light> Make the value displayed on the copy quantity

display smaller.

<When too dark> Make the value displayed on the copy quantity

display greater.

23456

789

Not copied Copied

2) Toner save mode adj ustment

(1) Press the exposure select key to set to the toner save mode.

The manual mode lamp and the photo mode lamp are simul-

taneou sly lig hte d and ex posu re " 1" is dis play ed on the ex posu re

display section. "C" is displayed on the copy quantity display .

COPY DENSIty

AUTO

MANUAL PHOTO

7 – 17

312

LIGHT DARK

(2) Perform the same procedures of (2) through (4) in "1) Normal

mode exposure adjustment."

3) Photo mode exposure adjustment

(1) Press the exposure select key to set to the photo mode.

The photo mode lamp is lighted and exposure "1" is displayed on the exposure displ ay section. " E" is displayed on the copy quantity display.

(4) M ak e a cop y.

Check that "3" of the test chart is slightly copied.

Slightly copiedNot copied

COPY DENSIty

AUTO

MANUAL PHOTO

1245

LIGHT DARK

(2) Perform the same procedures of (2) through (4) in "1) Normal

mode exposure adjustment."

(6) Automat ic exposure mode adj ustment

1) Automati c exposure (normal mode) adjustment

(1) Pr ess th e expo sure s elect key to s et to t he auto matic exposu re

mode (normal mode). The automatic exposure mode lamp is lit and exposure "1" is displa yed on the ex posure disp lay secti on. "G" is dis played on the copy quantity display .

COPY DENSIty

AUTO

MANUAL

PHOTO

<When too light> Make the value displayed on the copy quantity

display smaller.

<When too dark> Make the value displayed on the copy quantity

display greater.

2) Automatic exposure (toner save mode) adjustment

(1) Pr ess th e expo sure s elect key to s et to t he auto matic exposu re

mode (t on er sa ve mode).

The au tomatic ex posure mo de lamp an d the phot o mode lam p

are lit and exposure "1" is displayed on the exposure display

section. "1" is displayed on the c opy quant ity display.

COPY DENSIty

AUTO

MANUAL PHOTO

312 4

LIGHT DA RK

(2) Perform the same procedures of (2) through (4) in "1) Normal

mode exposure adjustment."

1245

LIGHT DARK

(2) Check that "0" is displayed on the copy quantity display. (3) Press the DARK e xposure key t o set to exposure "5." ("H" i s

displayed on th e copy quantity display.)

COPY DENSIty

AUTO

MANUAL PHOTO

12 45

LIGHT DARK

7 – 18

Copy density adjustment

Item Content Automatic exposure level initial setting 3 (Standard level) TSM mode initial setting 5 (Standard mode) AE sensor level adjustment Execution of Sim. 47 Drum sensitivity setting Execution of Sim. 26-07 Test chart setting Test chart comparison table

UKOG-0162FCZZ DENSITY No.

UKOG-0089CSZZ DENSITY No.

KODAK GRAY SCALE

Copy density adjustment

Developing bias output voltage adjustment 200V (Manual exposure 1)

Execution of Sim. 8-01

Manual exposure copy density adjustment Execution of Sim. 46-01

ME1

0.1 0.2 0.3 0.5 1.9 0

12345678910 W

123419A

SHARP CORPORATION

MADE IN JAPAN

456789

W23

ME5

TSM mode copy density adjustment

TS1

TS5

Photo mode copy density adjustment

PE1

Not copied Slightly copied

345678

Not copied Copied

1 10

3456

789

Not copied Slightly copied

234

5678

Not copi e d Copied

1 10 W

456789

PE5

Not copied Slightly copied

1 10 W2

3456789

Not copied Copied

7 – 19

Item Content

Automatic exposure copy density adjustment Enter "0" with the 10 digit key pad.

Normal mode AE1

AE5

3456

Not copied Slightly copied

TSM mode AE1 (TS)

AE5 (TS)

Enter "0" with the 10 digit key pad.

345678

Not copied Slightly copied

2-5. Process section adjustment A. Blank lamp (BL) position adjustment

1 Check that the center shift is within 0.2mm. (If the center shift

exceeds 0.2mm, adjust the center shift.)

2 Set a white original of A3 (11" x 17"), and make a reduction copy

(x 0.64) on an A3 paper (11" x 17") with the original cover open.

3 Measure the black background sizes on both ends, and slide the

blank lamp unit back and forth to adjust so that the size difference is within 1 mm.

IA-B I 1mm

B. High voltage output balance adjustment

This model employs the one transformer system where the output power is common to the charging charger (MC) and the transfer charge r (TC). The feed back curr ent fro m the tran sfer ch arger (TC) is const ant-curr ent controlled and outputted for charging. For the output ad justment o f each high vo ltage, follow the proced ur e s below.

Transfer charger (T C )

•

Output adjustment

Main charger (MC)

•

Grid voltage

Developing (BS)

Bias voltage

•

7 – 20

A. Use of special m easurement tools

• Tool: UKOGE0043CS01 (Digital multi meter)

• Electrode sheet (UKOG-0110FCZZ)

UK0G-0110FCZZ

UKOG-0110FCZZ

5 Attach the process unit to the copier. (Attach so that the electrode

sheet lead wire extends from the developing unit side.)

6 Clean the transfer charger wire, and attach the transfer/separation

charger unit to the copier. (Do not install the main charger unit.)

Adjustment

output

Sim

TC current 08-02

Adjustment

range –41.0

±4.0 µA

F/R

difference

Tester

range

7.0 µA DC1000 µA

Standard (A)

–750 ±5V MC grid voltage

44-11

Photo (b)

–500 ±5V

— DC1000V

TS (c)

–650 ±5V DV bias voltage 08-01 –200±5V — DC1000V

Electr ode sheet harness (DHAI-0304FC ZZ)

(Microswitch) (QSW-M0118FCZZ)

Orange

PHOG-0007FCZZ QTIPH0017FCZZ

(Wiring of secti onA)

300KΩ x 2

White

(VRN-RT2EK304F)

Orange

White

Blue Black

Black

White Red

Blue

Green

(QCLIZ0005FCZZ)

Blue

(QCLIZ0006FCZZ)

Black

(QCLIZ0010FCZZ)

Yellow

(QCLIZ0004FCZZ)

Red

(QCLIZ0002FCZZ)

C. Transfer charger output check

1) Transfer charger c urr ent adjustment

1 Remove the developing unit, the transfer/separation charger unit,

and the main charger unit from the copier.

2 Remove the process unit from the copier.

When removing (attaching) the process unit from (to) the copier, do not hold the toner transport pipe.

3 Remove the photoconductor drum from the process unit, and at-

tach the electrode sheet by using rubber ring and tape.

4 Attach the photoconductor drum with the electrode sheet attached

to it to the process unit.

7 Connect the electrode sheet and the digital multi meter (or an

ammeter). Manually turn on the door switch.

Green clip

Copier chassis (Uncoated section)

Digital multi meter

Yellow clip Black clip

Black

2 20

(DCmA)

200

Blue clip

Orange

White

Blue Red

Red clip

Orange

(Microswitch)

(UKOGE0043FC01)

(Note) Check that the black clip is firmly grounded to the chassis.

When the UKOGE0043CS01 is used: Control 1: Set to "2" of DCmA. Red clip: Connect to ⊕. Blue clip: Connect to - . When a DC ammeter is used: Red clip: Connect to - of the DC ammeter. Blue clip: Connect to ⊕ of the DC ammeter.

8 Transfer charger output current check and adjustment

a. Turn on th e main switch and execute simula tion 8 -02. (M THV

is turned on for 30 sec.)

b. Adjust VR102 (MTHV output adjustment control) so that the

output current of MTHV is –41 ±4.0 µA.

7 – 21

9 Check the drum current in the front frame side and the rear frame

side. Difference between the front frame side current and the rear frame side current must be within 7.0 uA.

a. Turn on th e main switch and execute simula tion 8 -02. (M THV

is turned on for about 30 sec.)

b. Measure the drum current in the front frame side and in the

rear fram e side.

• When the microswitch is OFF: The drum current in the front

frame side is displayed.

• When the microswitch is ON: The drum current in the rear

frame side is displayed.

(OFF)

N/C N/O COM

c. Check that the difference between the front frame current and

the rear frame current is within 7.0 µA. If the difference exceeds 7.0 µA, the charger unit is abnormal. Replace the charger unit in that case.

N/C N/O COM

(ON)

2) Charging grid voltage adjustment

Before this adjustment, check that the photoconductor drum, and developing unit, and the charger (MC/TC) units are attached. (Measurement and adjust m ent at the high voltage PWB check point)

1 Remove the rear cabinet. 2 Set the digital multi meter range to DCV, and connect to the grid

voltage output check pin (GB).

3 Turn on the copier power and execute simulation 44-11.

4 Select the standard mode (A) with the magnification ratio display

key on the operation panel. (The mode is displayed on the copy

quantity display.) Execution of simulation 44-11 Select the standard mode (A) with the magnification ratio select key. (Reference)

Display Mode

A Standard –750 ±5V

b Photo –500 ±5V

C TS –650 ±5V

d GB patch –410V → GB is not adjustable.

5 Use the 10-key pad to adjust so that the measurement value by

the tester in the standard mode (A) is –750 ±5V. (Input value 1

corresponds to 5V.)

* For the voltage check, enter the value with the 10-key pad and

press th e PRINT button to st o r e it, an d press the PRINT but t on agai n and measure the voltage with the tester while copying.

6 Adjust similarly in the photo mode (b), and in the toner save mode

(C). Check th e GP patch (d) a fter adju stment of st andard (A), photo (b)

and TS (c).

• Grid voltage adjustment

(Sim 44-11)

Display Mode Grid

A Standard –750±5V 48 b Photo –500±5V 46 C TS –650±5V 46 d GB patch –410V 41

Input value (Standard)

* 1

(Input value 1 corresponds to 5V.)

d (GB) is fixed.

• Grid voltage check

Grid voltage

Sim No. Mode * Drum marking number: 1 * Drum marking number: 2

8-2 Standard –740 –770 8-3 Photo –480 –480 8-4 TS –630 –650

* Drum marking number 1 = SHARP

Drum marking number 2 = Mitsubishi

* Th is mo del pe rfo rms th e p roces s cor rect ion acco rdin g to t he n um-

ber of drum mark(s). With Sim 8, the grid voltage after correction can be chec ked.

3) Developin g bi as ( B S) vo lt age adjustment

The deve loping bi as voltage is measured and adjusted wit h the check pin (DV BIAS) on the high voltage PWB and the control knob (VR301). In adv ance to this adju stment, check t hat the photocon ductor d rum, the dev eloping unit, an d the charger (MC/ TC) unit s are installed.

1 Remove the rear cover. 2 Set the digital multi meter range to DCV, and connect it to the

developing bias output check pin (DV BIAS).

3 Turn on the copier power, and execute simulation 8-01. 4 During execution of the simulation, check that the developing bias

output monitor voltage is –200 ±5V. If the voltage is outside the

range, adjust with the control knob (VR301).

7 – 22

[8] SIMULATION

1. Outline

This model is equipped with the simulations feature which allows the follow ing operations wi th the keys on the op eration panel:

1) Adjustments

2) Sett in g of sp ec ific ations and fun ctions

3) Resetting trouble codes

4) Checking operations

2. Purpose

The pu rpose of the s imulati ons feat ure is t o imp rove serv iceabili ty in repair s an d adjustmen ts. Since the mechanical adjustments can be performed electrically, the above p urpose i s achieved with lo w costs.

3. Opera tin g pr oc edu r e

Simulations operating procedure

Start

Press the clear key

Press the interruption key

Press the zero key

Press the interruption key

All lamps and indicators on the operation panel go off. Ready for ent ry of t h e m ain test comman d number

Enter the main test command number with numeric keys

The set adjustment value or the counter value is displayed on the copy quant ity display

To change the set adjustment value or the counter value, enter a n ew value with numeri c keys

The entered value is displayed on the copy quantity display

Press the print key

The new set value is stored

Is there a sub code?

Press the print key

Is the test

command for operation check?

Operations according to the simulations are performed

Do you perform anot he r simulations?

Press the cle a r ke y

YES

Press the print key

"00" blinks on the copy quantit y displ ay. Ready f o r entry of the sub code.

Enter t he sub code with numeric keys

Press the prin t key

YES

Is the main code same?

The ma in simulat ions number is displayed on the copy quantity display

Is the sub code display?

Enter a new m ain code

The main code is display on the copy quantity display

YES

Press the clear key

All the lamps and indicators on the operation panel go off. Ready for entry of the main simulations number

Press the clear key

End

8 – 1

4. List of simulati on s

Main code

Sub

code

01 Mirror scanning 02 Optical system sensor check

03 Lens operation check 04 Lens operation aging 01 ADF aging 02 ADF sensor check

ADF individual load operation check (Paper feed

motor forward rotation) ADF individual load operation check (Paper feed

motor reverse rotation)

6 01 PSPS operation check

10 — Toner motor aging 14 — Trouble cancel (Excluding U2 trouble) 15 — Waste toner full (blinking) cancel 16 — U2 trouble cancel 20 — Maintenance counter clear 21 01 Maintenance cycle setting

ADF individual load operation check (Transport

motor forward rotation) ADF individual load operation check (Transport

motor reverse rotation) ADF individual load operation check (Paper feed

solenoid) ADF individual load operation check (Paper feed

motor normal rotation + paper feed solenoid)

02 Sorter sensor check

Sorter individual load operation check (Transport

motor) 04 Sorter individual load operation check (Bin motor) 05 Sorter individual load operation check (Buzzer)

Sorter individual load operation check (Alignment 06

motor) (SF-S54 only)

Sorter individual load operation check (Pinch 07

hold motor) (SF-S54 only) 01 Operation panel display check 02 Heater lamp check 03 Copy lamp check 04 DL lighting check 05 BL lighting check

01 Warm-up time display and aging 04 Warm-up omitting 06 Intermittent aging 08 Warm-up time display 01 Developing bias output 02 Main/transfer charger output/grid check (ME) 03 Main/transfer charger output/grid check (PE) 04 Main/transfer charger output/grid check (T/S) 07 Separation charger output

Content

Main code

Sub

code

01 Maintenance counter display 02 Maintenance preset counter display 03 JAM memory display 04 Total JAM counter display 05 Total counter display

06 DV counter display 07 DV preset counter display 08 ADF counter display 10 Staple counter display 11 Toner concentration correction counter display 15 Trouble memory display 01 JAM memory/total JAM counter clear 02 Trouble memory clear

04 ADF counter clear 05 Staple counter clear 01 Drive system check

02 Automatic developer adjustment 05 Counter mode setting 06 Destination setting 07 Drum sensitivity setting 10 AE document density setting

13 Warm-up mode setting 18 Toner save mode setting 20 Rear edge void setting

29 AC power voltage setting 30 01 Copier sensor check (paper sense) 42 — Developer counter (counter clear) 43 01 Fusing temperature setting

01 Process control operation setting

05 Grid voltage correction test

06 Grid voltage correction compulsive execution

07 Image density/drum mark sensor operation test 44

08 Process control data display

09 Process control data display (Latest value)

Grid voltage correction (Drum surface/patch)

data display 11 Initial grid bias setting 12 Copy operation check with process control OFF

46 01 Exposure adjustment 47 —

50 51 02 Resist amount adjustment

54 03 Take-out buzzer setting

AE sensor characteristics measurement (AE

sensor gain automatic adjustment) 01 Front/rear magnification ratio adjustment

Paper transport direction magnification ratio 02

adjustment (Mirror speed correction) 01 Copy lead edge adjustment 02 Lead edge adjustment (Simple type)

ADF stop position adjustment value (normal 01

paper) setting 04 ADF resist sensor, width sensor adjustment 06 ADF timing sensor adjustment

Content

8 – 2

5. Details of simulations

Simulation input procedure: C → ë → 0 → ë

Main co de Sub code Content

01 01 Mirror operation check

When the print button is pressed, the mirror is scanned at a speed corresponding to the currently set copy magnification ratio.

The copy magnification ratio can be arbitrarily set.

02 Optical system sensors (MHPS, LHPS) state display

ON/OFF state of the optical system sensor can be monitored by the LED on the operation panel.

Sensor name Operation panel LED MHPS Paper empty lamp (ç) LHPS JAM lamp (ê)

03 Lens operation check

The lens unit moves to the following positions of the magnification ratios continuously. AB series: 100% → 115% → 122% → 141% → 200% → 86% → 81% → 70% → 50% → 100% Inch series: 100% → 121% → 129% → 141% → 200% → 95% → 77% → 64% → 50% → 100%

04 Lens aging

The operation of SIM 1-3 is repeated continuously.

02 01 ADF aging

The ADF original transport operation is performed.

02 ADF sensors states display

The ADF sensors ON/OFF states can be monitored with the LED on the operation panel. When the third digit of the multi display is “0” the following display is made.

Sensor name Operation panel LED Original set sensor JAM lamp (ê) Resist sensor Paper empty sensor (ç) Timing sensor Drum position jam lamp (▼) Repulsion sensor Resist position jam lamp (▼) ADF open/close sensor ADF position jam lamp (▼) Paper feed cover sensor Paper exit position jam lamp (▼)

If, at that time, the magnification ratio display key is pressed, the third digit of the multi display is changed to “1” and the following display is made.

Sensor name Operation panel LED Tray width sensor (297mm, 11") First step paper size lamp Tray width sensor (257mm) Second step paper size lamp Tray width sensor (210mm, 8.5") Third step paper size lamp Tray width sensor (182mm) Fourth step paper size lamp Tray vertical sensor (240mm) Resist position jam lamp (▼) Tray vertical sensor (300mm) Paper exit position jam lamp (▼) Original width size sensor Manual feed selection lamp

03 ADF individual load operation check (paper feed motor forward rotation) 04 ADF individual load operation check (paper feed motor reverse rotation) 05 ADF individual load operation check (transport motor forward rotation) 06 ADF individual load operation check (transport motor reverse rotation) 08 ADF individual load operation check (Paper feed solenoid) 10 ADF individual load operation check (paper feed motor + paper feed solenoid)

8 – 3

Main co de Sub code Content

0.5s 0.5s 0.5s

0.5s

Full power ON Data ON (Can be set b y the exposure key arbi trar ily

03 02 Sorer sensor state display

The ADF sensor ON/OFF states can be monitored with the LED on the operation panel. When the third digit of the multi display is “0” the following display is made.

Sensor name Operation panel LED Entrance sensor Jam lamp (ê) Tray paper presence/empty sensor Paper empty sensor (ç) Upper limit sensor Manual feed selection lamp Lower limit sensor Resist position jam lamp (▼) Bin home position sensor Drum position jam lamp (▼) Take-out sensor Paper exit jam lamp (▼) Alignment bar home sensor ADF section jam lamp (▼) SF-S54 only

If, at that time, the magnification ratio display key is pressed, the third digit of the multi display is changed to “1” and the following display is made.

Sensor name Operation panel LED Pinch (hold) home sensor Jam lamp (ê) SF-S54 only Stapler home sensor Paper exit position jam lamp (▼) SF-S54 only Stapler paper sensor Paper empty jam lamp (ç) SF-S54 only Stapler near end sensor Resist position jam lamp (▼) SF-S54 only

03 Sorter individual load operation check (Transport motor) 04 Sorter individual load operation check (Bin motor) 05 Sorter individual load operation check (Buzzer) 06 Sorter individual load operation check (Alignment motor) 07 Sorter individual load operation check (Pinch hold motor)

05 01 Operation panel display check

All the LED’s on the operation panel are lighted for 5 sec. When the automatic original feed unit is installed, the original feed lamp and the original remaining lamp are also

lighted for 5 sec.

02 Heater lamp lighting check

The heater lamp is turned on/off in the following sequence.

03 Copy lamp lighting check

The copy lamp is turned on/off in the following sequence.

04 DL lamp lighting check

The discharge lamp is lighted for 30 sec.

05 BL lamp lighting check

The blank lamp is turned on/off every 0.5 sec.

8 – 4

Main co de Sub code Content

0.5s 0.5s

PSPS

06 01 PSPS operation check

The separation pawl is turned on/off 30 times in the following sequence.

07 01 Warm-up time display and aging

After execution of the simulation, warm-up is started, and the swarm-up time is displayed every second on the copy quantity display. When warm-up is completed (RPL ON), count adding of the display is stopped.

Press the CA key to clear warm-up time display, set the copy quantity and press the PRINT button to make the set number of copies repeatedly.

04 Warm-up omitting

After completion of the simulation, the machine goes to the ready state. (RPL ON)

06 Intermittent aging

After execution of the simulation, the machine starts warm-up. After completion of warm-up, press the CA key to clear warm-up time display, set the copy quantity and press the PRINT button to make the set number of copies repeatedly.

After the interval time (2 min) from completion of making the set number of copies, the machine resumes copying.

08 Warm-up time display

Aging function is deleted from SIM 7-1.

08 01 DVBIAS check

The developing bias is turned on for 30 sec.

02 MTHV (main, transfer), grid check (ME)

The main/transfer charger is turned on for 30 sec. For the grid bias, the ME value is outputted.

03 MTHV (main, transfer), grid check (PE)

The main/transfer charger is turned on for 30 sec. For the grid bias, the PE value is outputted.

04 MTHV (main, transfer), grid check (T/S)

The main/transfer charger is turned on for 30 sec. For the grid bias, the T/S value is outputted.

07 SHV (separation) check

The separation charger is turned on for 30 sec.

10 — Toner motor aging

The toner motor is turned on.

14 — Cancel of troubles (except for U2)

Troubles (except for U2) are canceled and the simulation is also canceled automatically.

15 — Cancel of waste toner full (è blinks)

The waste toner full indication (è blinks) is canceled, and the simulation is also canceled automatically.

16 — U2 trouble cancel

U2 trouble is canceled, and the simulation is automatically canceled.

20 (Note) Maintenance counter clear

The maintenance counter is cleared and the maintenance counter value is displayed on the copy quantity display. (“000” is displayed because the counter value is cleared.) (Note) Cleared by entering the sub code “01.”

8 – 5

Main co de Sub code Content

21 01 Maintenance cycle setting

Used to set the lighting cycle of the maintenance lamp (è). When this simulation is executed, the currently set maintenance cycle is displayed on the copy quantity display. After setting the number, press the print button to memory the value.

Set value Maintenance cycle

0 60,000 sheets ← Initial value 1 30,000 sheets 2 10,000 sheets 3 5,000 sh eets 4 2,500 sh eets 5 Free (Not lighted.)

22 01 Maintenance counter display

The maintenance counter value is displayed on the copy quantity display.

02 Maintenance preset counter display

The maintenance cycle set with SIM 21-1 is displayed on the copy quantity display.

03 Jam memory display

The cause (position) of the jam occurred in copying is displayed. When this simulation is executed, the jam cause (jam position) is displayed on the jam cause display. By pressing

the magnification ratio key, the history of jam causes can be checked sequentially.

04 Total jam counter display

The total number of jams occurred in copying is displayed on the copy quantity display.

05 Total counter display

The total counter value is displayed on the copy quantity display.

06 Developer counter display

The counter value of the developer which is installed is displayed on the copy quantity display.

07 Developer preset counter display

The developer replacement cycle (mini maintenance cycle for Japan) of the developer which is installed is displayed on the copy quantity display.

08 ADF counter display

The number of originals transported by the ADF is displayed on the copy quantity display.

10 Staple counter display

The number of stapling is displayed on the copy quantity display.

15 Trouble memory display

“A” is displayed on the third digit of the copy quantity display, and the latest trouble code (main code) is displayed on the second and the third digit.

When the PRINT button is pressed at that time, the sub code of the corresponding trouble is displayed during the PRINT button is being pressed.

When the magnification ratio key is pressed while the main code is displayed, the previous trouble is displayed. Maximum 20 recent troubles are stored.

24 01 Jam memory/total jam counter clear

The cause (position) of a jam which occurred during copying and the jam total counter are cleared, and the jam total counter value is displayed on the copy quantity display. (“000” is displayed because the counter is cleared.)

02 Trouble memory clear

The main code and the sub code of a trouble is cleared. (“000” is displayed because the memory is cleared.)

04 ADF counter clear

Used to clear the ADF counter and to display the ADF counter value on the copy quantity display. (“000” is cleared because the counter is cleared.)

05 Staple counter clear

Used to clear the staple counter and to display the staple counter value on the copy quantity display. (“000” is displayed because the counter is cleared.)

8 – 6

Main co de Sub code Content

25 01 Drive system check

Used to turn on the main motor, the developing bias, and the discharge lamp for 3 min. The input value of the toner density is displayed on the second digit of the copy quantity display during the main

motor is rotating.

Copy quantity display

Third digit Second, first digit

A1 ∼ 99 Black

02 Automatic developer adjustment

Same as SIM 25-1. The average value of toner density sensor inputs is stored as the toner density adjustment value after 3 min from starting the main motor rotation.

The display on the copy quantity display is same as SIM 25-1.

26 05 Count mode setting

Used to set the count mode of the total counter, the developer counter (mini maintenance counter for Japan), and the maintenance counter in A3/WLT copy.

When this simulation is executed, the currently set count mode is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Set value Total/Developer counter Maintenance count

0 Double count Double count ← Initial value 1 Single count Double count 2 Double count Single count 3 Single count Single count

06 Destination setting

Used to set the destination (Japan, SEC, etc.). When this simulation is executed, the currently set destination is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Color of developer

Set value Destination

0 Japan 1 SEC 2 SECL 3 SEEG 4 SUK 5 SCA 6 EX inch series 7 EX AB series 8 EX inch series (FC) 9 EX AB series (FC)

10 Taiwan/China

07 Drum sensitivity setting

Used to set the drum sensitivity. When this simulation is executed, the currently set drum sensitivity is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Set value Drum sensitivity

11 22← Initial value 33

8 – 7

Main co de Sub code Content

26 10 AE original density setting

Used to set the original density. When this simulation is executed, the currently set original density is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Set value Original density

0 Normal ← Initial value 1 Thin original

When a dark original is copied in the AE mode, the lead edge (about 4mm) is not copied. If it is necessary to copy the lead edge, set this simulation to “1.”

13 Warm-up mode setting

Used to set the main motor operation mode during warm-up. When this simulation is executed, the currently set warm-up mode is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Set value Warm-up mode

0 Normal mode ← Initial value 1 The main motor rotates until warm-up is completed.

18 Toner save mode setting (Japan/SUK only)

Used to set ON/OFF of the toner save mode. When this simulation is executed, the currently set value is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Set value Toner save mode

0ON← Initial value 1 OFF

20 Rear edge void setting

Used to set YES/NO of the paper rear edge void. When this simulation is executed, the currently set rear edge void mode is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it.

Set value Rear edge void

0 Yes ← Initial value 1No

29 AC power voltage setting

Used to set the AC power voltage to 100V or 200V. (For compliance with the CE mark)

Set value Power voltage

0 100V series ← Initial value 1 200V series

8 – 8

Main co de Sub code Content

30 01 Paper sensor state display

Used to monitor the ON/OFF state of the sensors in the main body with the LED on the operation panel.

Sensor name Operation panel LED PID Manual feed tray selection lamp PPD Drum position jam lamp (▼) DPPD1 Resist position jam lamp (▼) POD Paper exit position jam lamp (▼) PED1 Body upper step tray selection lamp (▼)

42 (Note) Developer counter clear

Used to clear the currently installed developing unit counter and to display the developer counter value on the copy quantity display.

(“000” is displayed because the counter is cleared.) (Note) The counter is cleared by entering the sub code “01.”

43 01 Fusing temperature setting

Used to set the fusing control temperature. When this simulation is executed, the currently set fusing temperature is displayed on the copy quantity display. The set value is changed by pressing the magnification ratio display key. Select the fusing temperature and press the PRINT button to store it. The setting range is 160 ∼ 205° C (in the increment of 5°C).

44 01 Process control operation setting

Used to set valid/invalid of the grid voltage correction, optical dirt correction, and drum membrane decrease correction.

When this simulation is executed, the currently set value is displayed on the copy quantity display. To make each correction mode valid, enter the sum of the codes of the correction modes, and press the PRINT

button to store it.

Code Correction mode

+1 Grid voltage correction +2 Optical dirt correction +4 Drum membrane decrease correction

The initial value is “7.” (All corrections are valid.) The grid voltage correction is always valid regardless of set value. (Even if it is set to “0,” the grid voltage

correction is not canceled.)

8 – 9

Main co de Sub code Content

44 05 Grid voltage correction operation test

Used to perform the grid voltage correction and to display the measure data on the copy quantity display. When this simulation is executed, the grid voltage correction is automatically performed. The image density

sensor is read when -30V, 0V, and +30V are applied to the latest patch forming grid vol tage. After completion of the operation, the measure data are displayed on the copy quantity display. Since there are two or more display items, the third digit is used to make distinction between the light reception

level and the original judgment level, and the lower two digits are used to display the data. The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A Measured b Drum surface data (patch forming grid voltage) is applied. C Drum surface data (patch forming grid voltage) is applied. d Patch data (patch forming grid voltage) -30V is applied. E Patch data (patch forming grid voltage) is applied. F Patch data (patch forming grid voltage) +30V is applied.

The data displayed by the lower two digits are A/D input values of the original sensor, and is expressed in decima l. (Disp lay range: 0 ∼ 99)

The patch forming grid voltage after execution of this simulation can be checked with SIM 44-9.

06 Grid voltage correction compulsory execution

The grid voltage correction is forcibly executed during the simulation. When the operation is completed, the patch forming grid voltage after grid voltage correction is displayed on the

copy quantity display. The relationship between the display value and the patch forming grid voltage value is as shown below.

Display value Patch forming grid voltage

8 200 V Display range: 8 ∼ 99

50 410 V 99 655 V

The drum surface data and the patch data after execution of this simulation can be checked with SIM 44-10. (Note) When this simulation is executed, the patch forming grid voltage is stored, and the grid voltage amount may

be chan ged from the patch f orming grid volt age before and aft er execution.

07 Image density sensor, drum mark sensor operation test

Used to read the light reception level for the light emitting amount of the image density sensor and the drum mark sensor and to display on the copy quantity display.

When this simulation is executed, the light emitting levels of the image density sensor and the drum mark sensor are changed in 5 steps and each light reception level is read.

After completion of operation, the measured data are displayed on the copy quantity display. Since there are two or more display items, the third digit is used to make distinction between the light reception

level and the original judgment level, and the lower two digits are used to display the data. The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A Measured b Image density sensor input value, when light emitting 2V C Image density sensor input value, when light emitting 3V d Image density sensor input value, when light emitting 4V E Image density sensor input value, when light emitting 5V F Judgement G Drum mark sensor level, when light emitting 2V H Drum mark sensor level, when light emitting 3V

I Drum mark sensor level, when light emitting 4V J Drum mark sensor level, when light emitting 5V

The data displayed with the lower two digits: “A” ∼ “E”: Image density sensor A/D input value. Con v erted into a dec imal number and displayed. (Display r ange:

0 ∼ 99)

“F” ∼ “J”: Drum mark sensor level is displayed with 0 and 1.

“0”: Drum mark sensor sensing impossible “1”: Drum mark sensor sensing possible

data

Drum surface data (patch forming grid voltage) –30V is applied.

Image density sensor input value, when light emitting 1V

Drum mark sensor level, when light emitting 1V

Display data (Image density sensor A/D input value)

When the display is changed by 1, the voltage is changed by 5V.

Display data

8 – 10

Main co de Sub code Content

44 08 Grid voltage correction, optical dirt correction, drum membrane decrease correction data display

Used to display each correction data of the grid voltage correction, the optical dirt correction, and the drum membrane decrease correction on the copy quantity display.

Since there are two or more display items, the third digit is used to make distinction between the light reception level and the original judgment level, and the lower two digits are used to display the data.

The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A8 ∼ 99 Patch forming grid voltage (initial value)

b1 ∼ 99 Normal mode grid voltage (initial value)

C0 ∼ 99 Optical dirt correction reference value

d0 ∼ 99 Drum rotating time (accumulated value)

E0 ∼ 99 DV unit (black) rotating time (accumulated value)

09 Grid voltage correction, optical dirt correction, drum membrane decrease correction data display (the newest value)

Used to display each correction data of the grid voltage correction, the optical dirt correction, and the drum membrane decrease correction on the copy quantity display.

The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A8 ∼ 99 Patch forming grid voltage (latest value)

b1 ∼ 99 Normal mode grid voltage (latest value)

C0 ∼ 10 Optical dirt correction reference value

d0 ∼ 20 Drum membrane decease correction value

31 ∼ 35

Gird voltage when the display value is 50 = 410V When the display value is decreased by 1, the grid voltage is decreased by 5V. When the display value is increased by 1, the grid voltage is increased by 5V.

Display value × 10V is the grid voltage output.

The AE sensor input value measured after execution of SIM 46-1. (Converted into a decimal number and displayed.)

When the display value is increased by 1, it corresponds to one hour.

Display value × 10V is the grid voltage output.

Display value × 0.7V = Copy lamp voltage correction value

Drum membrane decease correction value when normal mode exp. 1

Trouble data display when the grid voltage correction is performed.

0 --------- No trouble 31 ∼ 35 --- Trouble (The sub code is displayed.)

Display data

8 – 11

Main co de Sub code Content

44 10 Drum voltage correction drum surface data, patch data display

Used to display the drum surface data and the patch data after execution of the grid voltage after simulation 44-5, 6 or during normal operation is displayed on the copy quantity display.

The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A Measured b Drum surface data (patch forming grid voltage) is applied. C Drum surface data (patch forming grid voltage) is applied. d Patch data (patch forming grid voltage) –30V is applied. E Patch data (patch forming grid voltage) is applied. F Patch data (patch forming grid voltage) +30V is applied.

The data displayed by the lower two digits are A/D input values of the original sensor, and is expressed in decimal.

11 Initial grid bias setting

Used to set the initial grid bias in the normal mode, the photo mode, the toner save mode, and the patch measurement mode.

When this simulation is executed, war-up is started and the currently set normal mode initial grid bias is displayed on the copy quantity display.

The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A1 ∼ 99 Initial grid bias data (normal mode)

b Initial grid bias data (Photo mode)

C Initial grid bias data (Toner save mode)

d 41 Initial grid bias data (Patch measurement mode)

Display data

(Image density sensor A/D input value)

Drum surface data (patch forming grid voltage) –30V is applied.

data

Display data

Set the grid voltage to 750V. When the grid voltage is decreased by 1, the voltage is decreased by 5V. When the grid voltage is increased by 1, the voltage is increased by 5V.

Display value “41” : Set to 410V. Setting cannot be changed.

Enter the set value and press the PRINT button to store the value and start copying. After completion of setting, press the CA key to cancel the adjustment mode.

12 Copying without grid bias correction

Used to make copying without grid bias correction and drum mark check. When this simulation is executed, warm-up is started and “A 1” is displayed on the copy quantity display (for

identification of execution of this simulation.) During warm-up, drum mark check is not performed. After completion of warm-up, press the PRINT button to start copying. After starting copying, the grid bias correction is not performed. The number of multi copy cannot be set. (Single copy only) After checking the operation, press the CA key to cancel the mode. (Note) This simulation is used to judge whether the F2 trouble is caused by the grid bias correction or by the

proces s or the high volt age section trouble.

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Main co de Sub code Content

46 01 Exposure level adjustment

Used to set the copy density (copy lamp output voltage) in each exposure mode. When this simulation is executed, warm-up is started and the currently set manual (ME) upper limit value is

displayed on the copy quantity display. When warm-up is completed, the ready lamp lights up. When the PRINT button is pressed, copying is performed

in the currently set exposure mode. Since there are two or more display items, the third digit is used to make distinction between the light reception

level and the original judgment level, and the lower two digits are used to display the data. The display is selected by the magnification ratio key, the exposure key, or the density select key.

Copy quantity display

3rd digit 2nd, 1st digits

A1 ∼ 99 ME exp. 1 Manual (ME) upper limit value b ME exp. 5 Manual (ME) lower limit value C ME + PE exp. 1 Manual (ME) toner save upper limit value d ME + PE exp. 5 Manual (ME) toner save lower limit value E PE exp. 1 Photo (PE) upper limit value F PE exp. 5 Photo (PE) lower limit value G AE exp. 1 Auto (AE) slant H AE exp. 5 Auto (AE) lower limit value

I AE + PE exp. 1 Auto (AE) toner save slant J AE + PE exp. 5 Auto (AE) toner save lower limit

The setting range is 1 ∼ 99. The great er the set value i s , the brighter th e copy density is. After completion of setting, press the CA key to cancel the adjustment mode. (Note) Auto (AE) slant and auto (AE) toner save slant must be set to 0.

47 — AE sensor characteristics measurement

Used to read the E sensor input value when the copy lamp is lighted at the specified voltage and to set the AE sensor gain.

When this simulation is executed, the mirror base is initialized and fed to the measurement position. After completion of feeding, the previously measured AE sensor input value is displayed on the copy quantity display and the ready lamp is lighted.

Press the PRINT button, and the copy lamp is lighted at the specified voltage interval. The AE sensor input value at that time is read and stored. After completion of reading, the copy lamp is turned off and the measured AE sensor is displayed on the copy quantity display.

At that time, the AE sensor gain is automatically adjusted. (Note) Place 4 or 5 white sheets on the table glass during execution of this simulation.

Exposure section

display

Display data

48 01 Front/rear direction magnification ratio adjustment

Used to set the vertical (front/rear direction) copy magnification ratio. When this simulation is executed, warm-up is started and the currently set normal correction value is displayed on

the copy quantity display. Since there are two or more display items, the third digit is used to make distinction between the light reception

level and the original judgment level, and the lower two digits are used to display the data. The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A 1 ∼ 99 Normal correction value b C Zooming correction value (enlargement)

The setting range is: normal correction range; 1 ∼ 99 (initia l value: 50) zooming correction value; 10 ∼ 90 (initial value: 50) After completion of setting, press the CA key to cancel the adjustment mode.

10 ∼ 90

Zooming correction value (reduction)

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Display data

Main co de Sub code Content

48 02 Paper transport direction magnification ratio adjustment

Used to set the horizontal (paper transport direction) magnification ratio. When this simulation is executed, warm-up is started and the currently set mirror speed correction value is

displayed on the copy quantity display. When warm-up is completed, the ready lamp is lighted. Press the PRINT button to start copying. After completion of setting, press the CA key to cancel the adjustment mode.

50 01 Lead edge image position adjustment

Used to set the lead edge image position (RRC ON timing), the lead edge void position (blank lamp ON timing), and the rear edge void position (grid output timing).

When this simulation is executed, warm-up is started and the currently set resist adjustment A is displayed on the copy quantity display.

The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A1 ∼ 99 Resist adjustment A b Resist adjustment B C Lead edge void adjustment d Rear edge void adjustment

Set range: 1 ∼ 99 After completion of setting, press the CA key to cancel the adjustment mode. (Lead edge adjustment procedure)

Display data

1 Set resist adjustment A and B to 0. Make 100% and 200% copy. 2 Measure the distance between the paper lead edge and the image lead edge in each copy mode. 3 Enter the measured value in the following formula to obtain resist adjustment A and B.

200% lead edge shift : L1 100% lead edge shift : L2 (Resist adjustment A) = 6.151 × (L1 – L2) (Resist adjustment B) = (15.385 × L2) – (7.692 × L1)

4 Set the obtain ed values.

02 Lead edge image position adjustment (measurement value substitution formula)

Used to set the lead edge image position and the lead edge void position similarly with SIM 50-1. This simulation allows to directly enter the measured values L1 and L2 for setting of the lead edge image position.

Copy quantity display

3rd digit 2nd, 1st digit

A1 ∼ 99 L1 bL2 C Lead edge void adjustment d Rear edge void adjustment

Display data

(Example) When L1 = 24.5mm, enter 2 4 5 . After entering, the copy quantity display shows “A45.” Note for entering L1 and L2 values

• The significant digits of L1 and L2 are 3 digits. (Only lower two digits are displayed. The top digit is not

displayed.)

• Enter L1 and L2 to one decimal place. (If the first decimal place is 0, enter 0 at the end.)

• If four digits is entered for L1 or L2, the last three digits are effective. If only two digits is entered, the lowest

digit (1st digit) of the previous input is used as the top digit (3rd digit) of this time.

(Example) If the previous input is 245, and the current input is 24, the stored value is 524.

• Only when the PRINT button is pressed after setting L1 and L2, resist adjustment A and B in SIM 50-1 are

calculated and revised (stored). Pressing the magnification ratio key or the CA key cannot revise the resist adjustment A and B.

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Main co de Sub code Content

51 02 Resist amount adjustment

Used to set the warp amount of paper in the resist section. When this simulation is executed, warm-up is started and the currently set tray resist amount is displayed on the

copy quantity display. After completion of warm-up, the ready lamp is lighted. Press the PRINT button to start copying. Since there are two or more display items, the third digit is used to make distinction between the light reception

level and the original judgment level, and the lower two digits are used to display the data. The display is selected by the magnification ratio key.

Copy quantity display

3rd digit 2nd, 1st digits

A1 ∼ 99 Tray resist amount ← Initial set value: 45

b Manual feed resist amount ← Initial set value: 50

The details of the adjustment are as follows. This adjustment is used to set the time (resist amount) from the paper transport sensor (PPD) ON to paper feed

operation OFF. The set range is 1 ∼ 99. Set value × 1 msec + 70 msec = Resist amount

• A ... Cassette (Initial set value 40)

• B ... Manual feed

For WLT, A3, LG, B4, foolscap, LTR, or A4R, however, +15 is added to the simulation set value by the software. (Example) When the simulation set value is 40, +15 is added to 40 by the software and the actual value is 55.

53 01 ADF (single) stop position setting

Used to set the original stop position in ADF (single) transport. When this simulation is executed, the currently set stop position data is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it. Setti ng range: 0 ∼ 15

04 ADF resist sensor adjustment

Used to adjust the ADF resist sensor original judgement level. When this simulation is executed, the resist sensor original judgement level is adjusted. After completion of

adjustment, the original judgement level is displayed on the copy quantity display. Display range: 0 ∼ FFh (hexadecimal)

06 ADF timing sensor adjustment

When this simulation is executed, the paper exit reverse sensor original judgement level is adjusted. After completion of this adjustment, the original judgement level is displayed on the copy quantity display.

Display range: 0 ∼ FFh (hexadecimal)

54 03 Sorter buzzer setting

Used to adjust the sound volume of the sorter removal buzzer and the staple warning buzzer. (When the SF-S54 is installed)

Display data

Set value Buzzer setting

0 Volume Large ← Initial setting 1 Volume Middle 2 Volume Small 3 OFF

(When the SF-S17N is installed)

Set value Buzzer setting

0ON← Initial setting 3 OFF

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SHARP Sf2218 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual