Sharp AR-161, AR-160 User Manual

AR-161

CODE: 00ZAR161//A1E

DIGITAL COPIER

AR-160

MODEL AR-161

CONTENTS

[ 1 ] GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

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

[ 3 ] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

[ 4 ] EXTERNAL VIEWS AND INTERNAL STRUCTURE . . . . . . . . . . . . . . . 4-1

[ 5 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

[ 6 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

[ 7 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

[ 8 ] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[ 9 ] USER PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[10] TROUBLE CODE LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

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

[12] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

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

[14] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

[15] ACTUAL WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

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

AR-161AR-161

Warning!

This product is a class A product. If it is operated in households, offices or similar surroundings, it can produce radio interferences at other appliances, so that the user has to take adequate countermeasures.

CLASS 1 LASER PRODUCT

LASER KLASSE 1

LUOKAN 1 LASERLAITE

KLASS 1 LASERAPPARAT

VAROITUS!

LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING

OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN I DENNA BRUKSANVISNING SPECIFICERATS, KAN ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR LASERKLASS 1.

CAUTION

Laserstrahl

VORSICHT ADVARSEL

INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND SICHERHEITSVERRIEGELUNG ÜBERERÜCKT. NICHT DEM STRAHL AUSSETZEN.

USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGA UDSAETTELSE FOR STRÅLING.

ADVERSEL VARNING VARO!

USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.

OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR ÄR URKOPPLADE. STRÅLEN ÄR FARLIG. BETRAKTA EJ STRÅLEN.

AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTÖNTÄ LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

CLASS 1

LASER PRODUCT LASER KLASSE 1

CONTENTS

AR-161

[ 1 ] GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

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

2. Target user copy volum e: M ont hly average . . . 1-1

3. Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

4. System configuration . . . . . . . . . . . . . . . . . . . . . 1-1

5. Copier installation . . . . . . . . . . . . . . . . . . . . . . . 1-1

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

1. Copy mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

[ 3 ] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . 3-1

1. Supply system table . . . . . . . . . . . . . . . . . . . . . 3-1

2. Environment conditions . . . . . . . . . . . . . . . . . . . 3-3

3. Production number identification . . . . . . . . . . . . 3-3

4. Consumable parts recycling procedure . . . . . . 3-4

[ 4 ] EXTERNAL VIEWS AND INTERNAL

STRUCTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

1. Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

2. Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

3. Operation Section . . . . . . . . . . . . . . . . . . . . . . . 4-2

4. Motor, solenoid, clutch . . . . . . . . . . . . . . . . . . . 4-3

5. Sensor, switch . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

6. PWB unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

7. Cross sect i onal vi ew . . . . . . . . . . . . . . . . . . . . . 4-6

[ 5 ] UNPACKING AND INSTALLATION . . . . . . . . . 5-1

1. Installat i on of m achine . . . . . . . . . . . . . . . . . . . 5-1

2. Remo val of protective mat erial and fixing scr ew 5-1

3. Installation of developing cartridge . . . . . . . . . . 5-1

4. Removal and storage of fixing screw . . . . . . . . 5-2

5. Changi ng t he copy paper size in the tray . . . . . 5-3

[ 6 ] OPERATIONAL DESCRIPTIONS . . . . . . . . . . . 6-1

1. Outline of oper ation . . . . . . . . . . . . . . . . . . . . . . 6-1

2. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . 6-1

3. Process section . . . . . . . . . . . . . . . . . . . . . . . . 6-2

4. Laser unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

5. Paper feed section . . . . . . . . . . . . . . . . . . . . . . 6-6

6. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

[ 7 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

1. Adjustment item list . . . . . . . . . . . . . . . . . . . . . . 7-1

2. Copier adjus tment . . . . . . . . . . . . . . . . . . . . . . . 7-1

[ 8 ] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

1. Entering the si m ulat i on m ode . . . . . . . . . . . . . . 8-1

2. Cancelling the simu la tion mode . . . . . . . . . . . . 8-1

3. List of simulation s . . . . . . . . . . . . . . . . . . . . . . . 8-1

4. Contents of simul at i ons . . . . . . . . . . . . . . . . . . . 8-2

[ 9 ] USER PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . 9-1

1. User program f unctions . . . . . . . . . . . . . . . . . . . 9-1

2. Setting change procedure . . . . . . . . . . . . . . . . . 9-2

3. Departmen t counter setting . . . . . . . . . . . . . . . . 9-2

[10] TROUBLE CODE LIST . . . . . . . . . . . . . . . . . . . 10-1

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

1. Maintena nce tabl e . . . . . . . . . . . . . . . . . . . . . . 11-1

[12] DISASSEMBLY AND ASSEMBLY . . . . . . . . . 12-1

1. High voltage secti on . . . . . . . . . . . . . . . . . . . . 12-1

2. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

3. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . 12-2

4. Paper exit section . . . . . . . . . . . . . . . . . . . . . . 12-4

5. MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6

6. Optical frame uni t . . . . . . . . . . . . . . . . . . . . . . 12-6

7. LSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6

8. Tray pa per feed section/

Paper transport section . . . . . . . . . . . . . . . . . . 12-7

9. Manual mu lti paper feed section . . . . . . . . . . 12-8

10. Power section . . . . . . . . . . . . . . . . . . . . . . . 12-10

11. Developing section . . . . . . . . . . . . . . . . . . . . 12-11

12. Process section . . . . . . . . . . . . . . . . . . . . . . 12-12

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

1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

2. MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

3. CCD PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-13

[14] CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . 14-1

[15] ACTUAL WIRING DIAGRAM . . . . . . . . . . . . . 15-1

AR-161

[1] GENERAL

1. General

This model is a digital personal copier produced with key words of "Comfort able copy, Clear copy, Easy copy" providing high copy performances and copy productivity.

2. Target user copy volume: Monthly average

Stand-alone copier: 2000~3000 sheets Compound machine: 4000~5000 sheets

3. Main features

A. High-speed laser copying

• First-copy time is only 7.2 seconds (normal mode).

• Copying speed is 16 copies/min., which adapts to business use,

allowing improvement of working efficiency.

B. High-quality digital image

• High-quality copying at 600 dpi is performed.

• In addition to the automatic exposure mode, the manual exposure

can be adjusted in five steps.

• The photo mode copying function allows clear copying of delicate

halftone original images such as monochrome photos and color photos. Photo mode is adjustable in five steps

C. Substantial copying features

• Zoom copying from 50% to 200% in 1% increments can be per-

formed.

• Continuous copying of maximum 99 sheets can also be per-

formed.

• Useful special features such as the XY zoom, black and white

reverse, and dual page copy are available.

• Toner save mode reduces toner consumption by approximately

10%.

• User programs allow setting/modification of functions for customer

needs. Also the user programs allow the internal auditor to be controlled.

D. Scan once/ Print many (Only AR-161 for

USA/Canada)

• The copier is equipped with a 1-page memory buffer. This memory

allows the copier to scan an original 1 time only and make up to 99 copies. This feature allows for improved workflow, reduced operating noise from the copier and reduced wear and tear on the scanning mechanism, which provides for a higher reliability.

E. Optional features

• An optional single pass feeder (SPF) allows automatic document

feeding of up to 30 sheets.

• An optional electronic sort board allows many useful copier fea-

tures to be used. Multiple sets of copies can be sorted without the aid of a sorter and each set can be offset from the previous set. Also the erase, margin shift, and 4 in 1 and 2 in 1 functions are available. (To use the 2 in 1 and 4 in 1 and sort/group functions, an optional SPF is also needed.) (Offset only for AR-161)

• This copier can be used as a laser printer by installing an optional

printer upgrade kit. (Depends on the destination)

• This copier can be used as a facsimile machine by installing an

optional facsimile upgrade kit. (Depends on the destination)

F. Environmentally friendly design

• Paper output tray is housed in the copier for space saving.

• Preheat mode and auto power shut-off mode are provided to

reduce power consumption in standby mode.

4. System configuration

Single pass feeder (AR-SP2)

500-sheet paper feed unit (AR-DE6)

250-sheet paper feed unit (AR-DE5)

Electronic sorting kit (AR-EB3) *Facsimile expansion kit (AR-FX2) *Printer expansion kit (AR-PB8) *LCD panel kit (AR-PA1) *Job separator tray (AR-TR2) *PS2 expansion kit (AR-PS1) *There may be no setting for AR-FX2, AR-PB8, AR-PA1,

AR-TR2, and AR-151 depending on the destination.)

5. Copier installation

Do not install your copier in areas that are:

• damp, humid, or very dusty

• exposed to direct sunlight

• poorly ventilated

• subject to extreme temperature or humidity changes, e.g., near an

air conditioner or heater.

• Be sure to allow the required space around the machine for servic-

ing and proper ventilation.

4" (10 cm)

1 – 1

AR-161

[2] SPECIFICATIONS

1. Copy mode

A. Type

Type Desk-top

B. Copy speed

(1) Basic speed

1 scan 1 copy 16 sheets/min 1 scan multi copy Not available

(Available for AR-161 for USA/Canada)

Condition: Copy speed in the normal copy from all the paper feed

ports including the manual paper feed port.

(2) Continuous copy speed (Sheets/min)

Paper size Normal

A3 9 9 9 B4 10 10 10

Inch

A4 16 16 14 A4R 12 12 12 B5 16 16 16 B5R 14 14 14 11" × 17" 9 9 9

8.5" × 14" 10 10 10

8.5" × 13" 10 10 10

8.5" × 11" 16 16 14

8.5" × 11"R 12 12 12

8.5" × 5.5" 16 16 16

system

Enlargement

(200%)

C. First copy time

(1) Basic speed

First copy time 7.2sec (A4, 8.5" × 11"/1st cassette/with OC)

D. Document

Max. document size A3, 11" × 17" Document reference position Left side center Detection (Platen) None Detection size A3, B4, A4, A4R, B5, B5R

11" × 17", 8.5" × 14",

8.5" × 13", 8.5" × 11",

8.5" × 11"R, 8.5" × 5.5"

(1) SPF/R-SPF

Standard/Option Option

SPF, AR-SP2

RSPF; Not available Document load capacity 30 sheets (56 ∼ 90g/m2 equivalent) Document size

(Max. ∼ Min.) Document replacement

speed Document set/Paper feed

direction Document weight 56 ∼ 90g/m2, 15 ∼ 23.9 lbs Document size detection On the document feed tray Document mixture Copy mode: Not Available

A3 ∼ A5

11" × 17" ~ 8.5" × 5.5"

16 sheets/min (A4 normal copy)

Face up, Center reference, Paper

feed from the top

Reduction

(50%)

E. Paper feed

Copy size (Max. ∼ Min.) Cassette: (A3 ∼ A6) Paper feed

system Paper feed

capacity Remaining

quantity detection

1 cassette + Multi manual paper feed

250 × 1 (Paper feed tray) + 100 (Multi bypass feed tray)(56 ∼ 80g/m2 equivalent)

Cassette section Empty detection available,

size detection by key input

Manual tray Only empty detection

available

(1) Paper feed section of the copier

Paper feed size A3, B4, A4, A4R, B5, B5R, A5

Side front Front 1st step Paper feed

capacity Detection Paper empty detection available, size

Weight 56 ∼ 80g/m Special paper Recycled paper

11" × 17", 8.5" × 14", 8.5" × 13", 8.5" × 11",

8.5" × 11"R, 8.5" × 5.5"

250 sheets (56 ∼ 80g/m2 equivalent)

detection (by key input)

(2) Manual paper feed section

Paper feed size A3 ∼ A5 Paper feed

capacity Detection Size detection not available, paper empty

Weight 56 ∼ 128g/m Special paper Recycled paper, OHP film, labels Paper feed Single except for recycled paper

100 sheets

detection available

(3) Option paper feed unit

1-step paper feed

unit Model AR-DE5 AR-DE6 Paper feed size A3, B4, A4, A4R, B5, B5R, A5

11" × 17", 8.5" × 14", 8.5" × 13", 8.5" × 11",

Capacity (56 ∼ 80g/m2)

Paper weight 56 ∼ 80 g/m Moisture preserving

heater Detection Paper empty detection, size detection (by

Paper size setting User setting (by key input) External dimensions

(W × D × H) Weight About 8.5kg About 14kg Special paper Recycled paper Power Supplied from the machine (5V/24V)

About 250 sheets ×

570 × 570 × 103mm 570 × 570 × 208mm

8.5" × 11"R, 8.5" × 5.5"

1 step

Standard provision

2-step paper feed

unit

About 250 sheets ×

2 steps

key input)

F. Job speed

S-S (1st step) 100% (document replacement rate)

Condition: With SPF

G. Multi copy

Max. number of multi copy 99 sheets

2 – 1

AR-161

H. Warmup time

Warmup time Approx. 35 sec

(Condition: Standard condition) Pre-heat Available Jam recovery time Second

(Condition: Left for 60 sec after door open.

Standard condition, polygon motor not

stopped)

Second

(Condition: Polygon motor stopped)

I. Copy magnification ratio

Fixed magnification ratio AB system: 50, 70, 81, 86, 100, 115,

122, 141, 200% Inch system: 50, 64, 77, 95, 100, 121,

129, 141, 200% Zooming 50 ∼ 200% Independent

zooming/vertical Independent zooming

(horizontal)

Available (50 ∼ 200%)

J. Print density

Density mode Auto/Manual/Photo No. of manual adjustment 5 steps (Manual/Photo) Toner save mode Set by the user program

K. Print area

Max. print area

AB system

Inch system Max. 428 × 275

Max. 416 × 293

A3 416 × 293 B4 360 × 253 A4 206 × 293

A4R 293 × 206

B5 178 × 253

B5R 253 × 178

11" × 17" 428 × 275

8.5" × 14" 352 × 212

8.5" × 13" 212 × 326

8.5" × 11" 212 × 275

8.5" × 11"R 275 × 212

8.5" × 5.5" 212 × 136

L. Void width

Void area Lead edge 1 ∼ 4mm, rear edge 4mm or less,

both side 4mm or less

Image loss Max. 4mm in total of lead edge and rear

edge, max. 4mm in total of right and left edges (Normal copy)

M. Auto duplex

Standard/Option Not installable

N. Paper exit/finishing

Paper exit section capacity

Job separator Job separator, option (AR-TR2)

Full detection Available (Job separator upper step) Finishing Electronic sort board: Option (AR-EB3) Electronic sort

capacity Offset function AR-161: Available Staple function None

(1) Electronic sort board (Option)

Electronic sort Sorting 60 sheets of A4 standard

Rotation copy If there is paper of same size as the

2 in 1, 4 in 1 Copies of 2 pages or 4 pages are integrated

Edge erase Images surrounding the document are erased

Center erase The image at the center is erased when

Margin shift Binding margin is made at the left edge of the

Face down 250 sheets

Upper: FAX/Printer, Lower: Copier Upper: 100sheets, Lower 150sheets

A4 standard document 60 sheets

documents

Grouping 60 sheets of A4 standard

documents

document, the image is rotated to copy even though the paper is set in the different direction from the document direction.

into one surface. Divided by solid lines, (Selectable by the user program.)

when copying. (Adjustable in 0 ∼ 20mm by the user program.)

copying. (Adjustable in 0 ∼ 20mm by the user program.)

set documents.

O. Additional functions

APS

AMS

Duplex ✕ Document count ✕ Sorter v When the electronic sort board installed. Independent

zooming 1 set 2 copy F Enlargement inhibited, inhibited during

Binding margin v Shift width 9mm Edge erase v Width 5mm (Adjustable 0 ∼ 20mm) Black-white

reversion 2 in 1, 4 in 1 v Rotation copy v Memory copy ✕ (AR-161 for USA/Canada: Available) Pre-heat function F Conditions set by the user program Auto power shut

off function Auto tray

switching Message display v (FAX/Printer extension) User program F Total counter F

: By the document size set key

v: When an option is installed

F (APS not available by flowing in during

use of SPF)

F (AMS not available by flowing in during

use of SPF)

F Vertical/Horizontal: 50 ∼ 200%

the use of SPF

F Whole surface only

F Conditions set by the user program

2 – 2

AR-161

P. machine composition

Model AR-160 Standard model AR-161 Standard model (with shifter)

(USA/Canada: with memory copy)

(1) Option

Machine Model Power supply 250 sheets paper feed unit AR-DE5 Supplied by the copier. 500 sheets paper feed unit AR-DE6 Supplied by the copier. SPF AR-SP2 Supplied by the copier Electronic sorting kit AR-EB3 Supplied by the copier. Printer expansion kit AR-PB8 Supplied by the copier. Facsimile extension kit AR-FX2 Supplied by the copier. LCD panel kit

(20 digits × 2 lines) Job separator tray AR-TR2 PS2 expantion kit AR-PS1 Extension memory for FAX

(2MB) Extension memory for FAX

(4MB) Extension memory for FAX

(8MB)

AR-PA1 Supplied by the copier.

AR-MM5

AR-MM6

AR-MM7

V. Reliability

Target users Stand-alone copier Monthly average

2,000 ∼ 3,000 copies

Compound machine Monthly average

4,000 ∼ 5,000 copies

W. Noise

Noise BA standard

X. Digital performance

Resolution Reading 400 dpi

Writing 600 dpi

Gradation Reading 256 gradations

Writing Binary

Q. Other specifications

Photoconductor type OPC (Organic Photo Conductor) Photoconductor drum dia. 30mm Copy lamp Xenon lamp Developing system Dry 2-component magnetic brush

Charging system Saw teeth charging Transfer system Non-contact (Corona) electrostatic

Separation system Natural separation Fusing system Heat roller + Separation pawl Cleaning system Contact blade

development

transfer

R. Package form

Body Body/Accessaries

S. External view

External dimensions (W × D × H)

Occupying area (W × D) 590 × 531mm

Weight About 34.1kg

590 × 531 × 467 mm

(When the manual tray is installed.)

T. Power source

Voltage AC120V, 220V, 240V ± 15% Frequency 50/60Hz common

U. Power consumption

Max. power consumption About 1.3KWh

* EnergyStar standard (The second level conformity)

Pre-heat About 60Wh Auto power shut off About 4.8Wh

2 – 3

AR-161

[3] CONSUMABLE PARTS

1. Supply system table

A. USA, CANADA

NO Name Content Life

1 Developer cartridge (Black) Toner/developer cartridge

(Toner 610g, Developer 395g) Vinyl bag × 1

2 Drum cartridge Drum cartridge × 1 30K AR-200DR

Vinyl bag × 1

3 Toner kit (Black) Toner bottle (Toner 610g) × 10 150K AR-200MT

Charging hose × 1

Toner cap × 10 4 Waste toner box Waste toner box × 10 AR-200TB 1 5 Developer kit (Black) Toner bottle (Developer 395g) × 10 150K AR-200MD

Developer cap × 10

DV blade × 10 6 Protective cover MG cover × 10 AR-200MG 1 7 Drum kit Drum

Drum fixing plate 8 Blade kit Blade × 10 AR-200CB 1

Mocket (F/R) Each × 10

* 1 Production in China for USA Note: Maintenance parts other than mentioned above must be ordered through the parts department using the proper part number.

× 1 15K AR-200TD

× 1 30K AR-200MR

B. Asia, Southeast Asia

NO Name Content Life

1 Developer cartridge (Black) Toner/developer cartridge

(Toner 610g, Developer 395g)

Vinyl bag × 1 2 Drum cartridge Drum cartridge × 1 30K AR-200DR 4

Vinyl bag × 1 3 Toner kit (Black) Toner bottle (Toner 610g) × 10 150K AR-200CT 1 Life setting by A4 6%

Charging hose × 1

Toner cap × 10 4 Waste toner box Waste toner box × 10 AR-200TB 1 5 Developer kit (Black) Toner bottle

(Developer 395g)

Developer cap × 10

DV blade × 10 6 Protective cover MG cover × 10 AR-200MG 1 7 Drum kit Drum

Drum fixing plate 8 Blade kit Blade × 10 AR-200CB 1

Mocket (F/R) Each × 10

Note: Maintenance parts other than mentioned above must be ordered through the parts department using the proper part number.

× 1 15K AR-200TD 4 Life setting by A4 6%

× 10 150K AR-200CD 1

× 1 30K AR-200CR 10

Product name of

other company

(*1 AR-200TD-J)

(*1 AR-200DR-J)

(*1 AR-200MT-J)

(*1 AR-200MD-J)

(*1 AR-200MR-J)

Product name of

other company

Package Remark

4 Life setting by A4 6%

document

1 Life setting by A4 6%

document

Package Remark

document

3 – 1

AR-161

C. Europe / Australia / New Zealand / Middle East / Africa / CIS

NO Name Content Life

1 Developer cartridge (Black) Toner/developer cartridge

(Toner 610g, Developer 395g) Vinyl bag × 1

2 Drum cartridge Drum cartridge × 1 30K AR-200DM 4

Vinyl bag × 1

3 Toner kit (Black) Toner bottle (Toner 610g) × 10 150K AR-200LT 1 Life setting by A4 6%

Charging hose × 1

Toner cap × 10 4 Waste toner box Waste toner box × 10 AR-200TB 1 5 Developer kit (Black) Toner bottle (Developer 395g) × 10 150K AR-200LD 1

Developer cap × 10

DV blade × 10 6 Protective cover MG cover × 10 AR-200MG 1 7 Drum kit Drum

Drum fixing plate 8 Blade kit Blade × 10 AR-200CB 1

Mocket (F/R) Each × 10

× 1 15K AR-200DC 4 Life setting by A4 6%

× 1 30K AR-200LR 10

Product name of

other company

Package Remark

document

D. Hong Kong / China

NO Name Content Life

1 Developer cartridge (Black) Toner/developer cartridge

(Toner 610g, Developer 395g)

Vinyl bag × 1 2 Drum cartridge Drum cartridge × 1 30K AR-200DR-C 4

Vinyl bag × 1 3 Toner kit (Black) Toner bottle (Toner 610g) × 10 150K AR-200CT-C 1 Life setting by A4 6%

Charging hose × 1

Toner cap × 10 4 Waste toner box Waste toner box × 10 AR-200TB-C 1 5 Developer kit (Black) Toner bottle (Developer 395g) × 10 150K AR-200CD-C 1

Developer cap × 10

DV blade × 10 6 Protective cover MG cover × 10 AR-200MG-C 7 Drum kit Drum

Drum fixing plate 8 Blade kit Blade × 10 AR-200CB-C 1

Mocket (F/R) Each × 10

Note: Maintenance parts other than mentioned above must be ordered through the parts department using the proper part number.

× 1 15K AR-200TD-C 4 Life setting by A4 6%

× 1 30K AR-200CR-C 10

Product name of

other company

Package Remark

document

3 – 2

AR-161

2. Environment conditions

A. Transport condition

(1) Transport conditions

Humidity (%)

Temperature

(2) Storage conditions (packed conditions)

3. Production number identification

The label on the drum cartridge shows the date of production.

Destination (∗)

Indicates production in China.

The end digit of production year

∗: Destination

Division No. Japan option 1 Ex option 2 Japan, same pack 6 Ex, same pack 7

Serial number

(00001-99999)

Production month

January

September October November December

9 0 X Y

Humidity (%)

B. Use conditions

Humidity (%)

Temperature

Use environment conditions

Temperature

The label on the drum cartridge shows the date of production.

Ver. A

The end digit of production year

Serial number (for each

month) (00001-99999)

Factory

Division No. Ex production 1 Option 2 Same pack 3

Production month

January

September October November December

0 X Y

C. Life (packed conditions)

Photoconductor drum (36 months from the production month) Developer, toner (24 months from the production month)

3 – 3

AR-161

4. Consumable parts recycling procedure

A. TD cartridge

1) Check the external view. Note: Be careful especially of breakage of the pins and the ATC

sensor connector shown below.

2) Remove the waste toner box unit.

4) Remove the DV blade. Note: Be sure to remove adhesive completely.

Remove adhesive together with the base PET.

5) Tilt the developing unit, rotate the DV gear clockwise, and remove developer.

6) Clean and remove developer on the MG roller and toner on the developing doctor completely with a vacuum cleaner or an air blower.

7) Shake the developer bottle about 10 times and supply developer to the developing unit. Turn the stirring roller to distribute developer evenly.

8) Install the toner box.

9) Shake the toner bottle about 20 times and install the toner supply hose to the toner bottle.

10) Remove the toner cap. While visually inspecting from the toner supply port, stop the TH shaft at the vertical position. (The TH mylar is on the lower side.) (Turn the gear on the back of the toner box counterclockwise to set the TH mylar on the lower side.)

3) Remove the developing unit.

3 – 4

AR-161

11) Face the toner supply port of the toner box upward with the toner bottle put straight, and insert the supply hose into the toner supply port.

17) Shake the developing unit 5 times left and right horizontally.

18) Check the distribution state of developer on the MG roller. Rotate the MG roller and visually check for no improper distribution of developer which may be caused by foreign materials.

19) Mark the number of times of recycling on the back of the toner box with white paint. Max. times of recycling: 5 times

12) Lift the toner bottle and supply toner.

13) Remove the supply hose from the toner box with care not to spill toner, and attach the toner cap.

Note: If the toner cap is not attached properly, toner splash may

occur.

14) Install the waste toner box.

15) Check the operations of the DV lever and the toner box shutter.

16) Wipe and clean the developer unit with alcohol, and attach the DV blade to it.

(Note) • Dry alcohol completely before attaching the DV blade,

• When attaching the DV blade, be careful not to scratch it

and eliminate slack.

• After attaching, be careful not to scratch and damage the

DV blade.

B. Drum unit

1) Check the external view.

• Check for damage or cracks on the boss and the boss hole.

• Check to insure that the waste toner pipe shutter slides

smoothly.

• Check to insure that the start ring and the CRU washer rotate

smoothly.

3 – 5

AR-161

2) Remove the drum cover.

3) Remove the drum fixing plate and the photoconductor drum. (Note) Dispose the drum fixing plate which was removed.

6) Remove the cleaning blade. Note: Dispose the cleaning blade which was removed.

7) Clean the cleaning section and the waste toner pipe to remove waste toner completely with a vacuum cleaner.

8) Remove the felt and duplex tape completely.

Note: Be careful not to scratch or bend the sub blade.

9) Attach the cleaning blade.

10) Attach the felt.

4) Check the cleaning blade and the red felt for no damage.

• If there is any damage, execute all procedures from item 5)

and later.

• If there is no damage, execute the procedure of item 12).

5) Remove the main charger. (Cleaning the screen grid and the sawteeth.)

3 – 6

AR-161

11) Attach the main charger.

12) Attach the drum fixing plate and the photoconductor drum. Apply grease to the inside of the photoconductor drum. (Dia. 2)

13) Attach the detection gear.

Note: • The detection gear is not installed to the drum cartridge

packed with the main body. Add a new one.

14) Attach the drum cover.

Note: After attaching the drum cover, do not make a copy.

15) Mark the number of times of recycling on the side of the cover with white paint. Max. times of recycling: 5 times

3 – 7

[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Appearance

AR-161

1 Original cover 2 Original table (OC table) 3 Handles 4 Power switch 5 Operation panel 6 Paper output tray

7 Front cover 8 Paper tray 9 Side cover 10 Side cover handle 11 Bypass tray guides 12 Bypass tray 13 Bypass tray extension

2. Internal

1 Drum cartridge handle 2 Drum cartridge 3 TD cartridge handle

4 TD cartridge strap 5 TD cartridge 6 Roller rotating knob

7 Fusing unit release levers 8 Paper guide

4 – 1

AR-161

3. Operation Section

1 Interrupt key and indicator 2 Copy quantity display 3 ZOOM indicator 4 Copy ratio display key 5 Zoom keys 6 PAPER SIZE ENTER key

7 AUDIT CLEAR key 8 PAPER SIZE indicators 9 Alarm indicators 10 POWER SAVE indicator 11 SPF indicator 12 Output tray full indicator 13 B/W REVERSE key and indicator 14 XY-ZOOM key and indicator 15 SORT/GROUP key and indicators 16 ORIGINAL DATA indicator 17 2 IN 1 / 4 IN 1 key and indicators 18 AUTO/MANUAL/PHOTO key and

indicators 19 Light and dark keys and indicators 20 Numeric keys 21 Zero key 22 CLEAR key 23 START key and indicator 24 CLEAR ALL key 25 PRESET RATIO selector keys and

indicators

28 TRAY SELECT key 29 AUTO IMAGE key and indicator 30 Paper feed location/misfeed location

31 DUAL PAGE COPY key and indicator 32 ERASE key and indicators 33 MARGIN SHIFT key and indicator

26 ORIGINAL SIZE ENTER key and

indicators

27 AUTO PAPER SELECT indicator

indicators

* 1 ON: Indicates that the machine is in the energy saving (pre-heat)

mode.

Blink: Indicates that the machine is in the process of resetting from

the energy saving mode or just after supplying the power. (During warmup)

OFF: Indicates that resetting from the energy saving mode is com-

pleted and that the fusing temperature is in ready state.

The combinations of the above display lamps are as follows: (F = ON, D = OFF)

Lamp

Pre-heat lamp Blink DD Ready lamp DFD Other lamps FFF

Lamp

Pre-heat lamp FFBlink Blink Ready lamp FDFD Other lamps FDFF

Immediately after

power ON

Energy saving mode (Pre-heating)

Energy

saving mode

(Auto power

shut off)

Ready Copying

Resetting

from energy

saving mode

Copy is started during resetting from energy saving

mode

* 2

Maintenance lamp When the set count number (set by the simulation) is reached, the lamp lights up. The machine does not stop.

TD cartridge replacement required indicator When toner density is lower than a specified level, the TONER DEVELOPER CARTRIDGE REPLACEMENT indicator lights up to warn the user. If toner is not added after approximately 10 sheets are copied, the indicator starts blinking and machine starts to supply toner. (Toner Developer cartridge replacement indicator keeps lighting up) If toner density is not back to specific level after two minutes, the READ indicator goes out and Toner Developer indicator starts blinking, and the copier stops.

Photoconductor cartridge replacement lamp When the copy count reaches 29,000 after installing a Photoconductor cartridge, the lamp lights up. When 1,000 copy is made after that, the lamp blinks instead of lighting. The machine does not stop. Press and hold the clear key for 5 sec in the user simulation mode to display the remaining life of the photoconductor cartridge in 3 digits x 2 lines on the copy quantity display.

Paper required indicator Misfeed indicator

4 – 2

4. Motor, solenoid, clutch

AR-161

No. Name Code Function, operation

1 Exhaust fan motor VFM Cools the inside of the machine. 2 Shifter motor Shifts the paper exit tray. (AR-161) 3 Toner motor TM Toner supply 4 Mirror motor MRM Drives the optical mirror base (scanner unit). 5 Cooling fan motor CFM Cools the inside of the machine. 6 Main motor MM Drives the machine. 7 Paper feed solenoid CPFS1 Solenoid for paper feed from cassette 8 Resist roller solenoid RRS Resist roller rotation control solenoid

9 Manual paper feed solenoid MPFS Manual paper feed solenoid 10 Manual paper transport clutch MPTC Drives the manual paper transport roller. 11 Manual paper feed clutch MPFC Drives the manual paper feed roller. 12 Paper feed clutch CPFC1 Drives the cassette paper feed roller. 13 PS clutch RRC Drives the resist roller

11 1012

4 – 3

AR-161

5. Sensor, switch

1234765

No. Name Code Function, operation

1 Mirror home position sensor MHPS Detects the mirror (scanner unit) home position. 2 Cassette detection switch CSD1 Cassette detection 3 Toner density sensor TCS Toner quantity detection 4 Paper exit sensor (paper exit side) POD1 Detects paper exit. 5 Right door switch DSWR Side door open/close detection 6 Paper full sensor Paper exit tray section full detection <For JOB separator> 7 Lift sensor Paper feed tray lift up detection <For JOB separator> 8 Paper exit sensor (DUP side) POD2 Paper transport detection

9 Thermistor Fusing section temperature detection 10 Thermostat Fusing section abnormally high temperature detection 11 Paper transport sensor PPD Paper transport detection 12 Manual sensor MPED Manual transport detection 13 Cassette paper sensor PED1 Cassette paper empty sensor 14 Drum reset switch DRST New drum detection switch 15 Power switch MAIN SW Turns ON/OFF the main power source.

4 – 4

6. PWB unit

AR-161

No. Name Function, operation

1 Copy lamp invertor PWB Copy lamp control 2 Power PWB AC power input/DC power control 3 High voltage PWB High voltage control 4 CCD sensor PWB Image scanning 5 Main PWB (MCU) Machine control/Image process 6 Paper exit interface PWB Paepr exit, finishing control 7 Electronic sort function Operation panel input/Display 8 Operation main PWB Operation panel input/Display, operation panel section control

4 – 5

AR-161

7. Cross sectional view

12 3 45

No. Name Function/Operation

1 Copy lamp Image radiation lamp

2 Copy lamp unit Operates in synchronization with No. 2/3 mirror unit to radiate documents sequentially.

3 LSU unit Converts image signals into laser beams to write on the drum.

4 Lens unit Reads images with the lens and the CCD.

5 MC holder unit Supplies negative charges evenly on the drum.

6 Paper exit roller Used to discharge paper.

7 Transport roller Used to transport paper.

8 Upper heat roller Fuses toner on paper (with the teflon roller).

9 Lower heat roller Fuses toner on paper (with the silicon rubber roller). 10 Drum unit Forms images. 11 Transfer charger unit Transfer images (on the drum) onto paper. 12 Resist roller Takes synchronization between the paper lead edge and the image lead edge. 13 Manual paper feed tray Manual paper feed tray 14 Manual paper feed roller Picks up paper in manual paper feed. 15 Manual transport roller Transports paper from the manual paper feed port. 16 Paper feed roller (semi-circular roller) Picks up paper from the cassette. 17 MG roller Puts toner on the OPC drum. 18 No. 2/3 mirror unit Reflects the images from the copy lamp unit to the lens unit. 19 Waste toner transport roller Transports waste toner to the waste toner box.

13141516

4 – 6

AR-161

[5] UNPACKING AND

INSTALLATION

1. Installation of machine

A. Installing conditions

Since the machine performance is largely affected by the installing place conditions, take enough considerations on the following items

1) Environment

• Avoid installation at a place with direct sunlight. If not, the plastic

parts may be deformed.

• Avoid installation near a heater, a humidifier, or an air conditioner

where humidity and temperature are extremely high or low. If not, paper may be dampened and dew is formed inside the machine, causing paper jam or dirty copies.

• Avoid installation at a dusty place. If dust enters the machine, dirty

copy or a trouble may be caused.

• Avoid installation at a place with vibrations. If not, a machine

trouble may be caused.

• Avoid installation at a poorly ventilated place.

• Avoid installation at a place that is filled with ammonium gas. If the

copier is installed near a diazo-copier, dirty copies may be resulted.

2) Space around the copier

• Allow a space of more than between the copier rear side and the

wall.

3) Power source

• Use an exclusive-use power outlet of 15A and 100V or more. If the

power plug of this machine is inserted into a power outlet commonly used with other illumination units, flickers of the lamp may be resulted. Use a power outlet which is not used commonly with any illumination units.

• Avoid complex wiring.

4) Grounding wire connection.

• To avoid danger, be sure to connect a grounding wire. If no groun

ing wire is connected and a leakage occurs, a fire or an electric shock may be resulted.

3. Installation of developing cartridge

1) Open the manual paper feed tray.

2) Lift the knob and slide the side cover gently.

3) Open the front cover.

• Hold the both edge gently and open the front cover.

4) Remove the screw from the upper section of the insertion port of the developer cartridge.

2. Removal of protective material and fixing screw

1) Remove all tapes and protective material.

• Remove all tapes, then open the document cover and remove

the protective material of sheet shape

2) Remove the fixing screw.

• Use a coin to remove the fixing screw.

• The fixing screw is required when transporting the machine.

Keep it in the tray. (Refer to the later description.)

5) Shake a new developer cartridge a few times as shown.

• Shake it horizontally as shown with the arrow.

5 – 1

AR-161

6) Remove the pawls (3 positions) of the protective cover at therear side.

7) Remove the protective cover.

• Pull the cover in the arrow direction to remove.

8) Insert the developer cartridge.

• Gently insert the developer cartridge along the guide until it

locks.

4. Removal and storage of fixing screw

1) Lift the knob and gently pull out the tray.

2) Hold the paper pressure plate and turn the fixing screw in the arrow direction.

3) Store the fixing pin and the fixing screw in the tray.

• Store the fixing screw which was removed in the above proce-

dure 2 and the fixing screw which was removed in procedure 2 of 2.

• Removal of protective material and fixing screw in the storage

place in the tray.

9) Fix the developer cartridge with the fixing screw which is packed together with the machine.

10) Close the front cover A, then close the side cover B.

• When closing the front cover, gently press the both sides.

• When closing the side cover, hold the knob.

• When closing the covers, be sure to close the front cover first,

then close the side cover. If closed in a wrong sequence, the covers may be broken.

Pressure

plate

lock

Screw

5 – 2

Front guide

Left guide

AR-161

5. Changing the copy paper size in the tray

1) Gently lift and pull out the paper tray until it stops.

2) Push the pressure plate down until it locks in place.

3) Squeeze the lock lever of the front guide and slide the front guide to match the width of the paper.

4) Move the left guide to the appropriate slot as marked on the tray.

• When using 11" ×17" copy paper, store the left guide in the slot

at the left front of the paper tray.

10) Use the ORIGINAL SIZE ENTER key to select the paper size which is set.

• Each time the ORIGINAL SIZE ENTER key is pressed, a

paper size will be indicated with a blinking paper size indicator.

11) Press the START key and then the PAPER SIZE ENTER key.

• To change the paper size setting of another tray, repeat steps

9 to 10 after pressing the START key.

5) Load copy paper into the tray.

6) Place the paper size plate in the front of the paper tray.

• The paper size indication which shows through the slot on the

front of the copier should match the selected paper size.

7) Push the paper tray firmly back into the copier.

8) To set the selected paper size, press and hold down the PAPER SIZE ENTER key. The selected paper feed location indicator and the corresponding paper size (which has been set) indicator will blink. All other indicators will go out.

• For paper size setting, ensure that the COPY mode has been

selected. However, if printer or facsimile output is being performed, paper size setting cannot be made even in the COPY mode.

9) Use the TRAY SELECT key to select the paper tray of which the paper size has been changed.

• Each time the TRAY SELECT key is pressed, a paper tray is

indicated with a blinking paper feed location indicator. If an optional paper feed unit is not installed, this operation is not needed.

5 – 3

AR-161

[6] OPERATIONAL DESCRIPTIONS

1. Outline of operation

The outline of operation is described referring to the basic configuration.

(Basic configuration)

Operation

section

Printer section

Scanner section

MCU (Main control/image process section)

LSU (Laser unit) Laser diode, Polygon mirror lens

Laser beam

Process section

Cassette paper

feed section

Paper exit

CCD

Manual paper

feed section

Fusing section

Paper transport section

G. Fusing: Fusing section

• Heat and a pressure are applied to the toner image on the copy

paper to fuse the image on the paper.

2. Scanner section

A. Scan process

The scanner has sensors that are arranged in a line. These sensors scan a certain area of a document at a time and deliver outputs sequentially. When the line is finished, the next line is scanned, and this procedure is repeated. The figure below shows the case where an image which is scanned is shown with solid lines.

The direction of this line is called main scanning direction, and the scanning direction sub scanning direction. In the figure above, one line is divided into 5 sections. Actually, however, one line is divided into thousands of sections. For scanning, the light receiving element called CCD is used.

Sub scanning direction

Sensor scanning area

Main scanning direction

Outline of copy operation A. Setting conditions: Operation panel

• Set copy conditions such as the copy quantity and the copy den-

sity with the operation section, and press the START key. The information on copy conditions is sent to the MCU.

B. Image scanning: Scanner section

• When the START key is pressed, the scanner section starts scan-

ning of images.The light from the copy lamp is reflected by the document and passed through the lens to the CCD.

C. Photo signal/Electric signal conversion:

Scanner section

• The image is converted into electrical signals by the CCD circuit

and passed to the MCU.

D. Image process: MCU

• The document image signal sent from the CCD circuit is processed

under the revised conditions and sent to the LSU (laser unit) as print data.

E. Electric signal/Photo signal (laser beam)

conversion: LSU

• The LSU emits laser beams according to the print data. (Electrical

signals are converted into photo signals.)

• The laser beams are radiated through the polygon mirror and

various lenses to the OPC drum.

F. Printing: Process section

• Electrostatic latent images are formed on the OPC drum according

to the laser beams, and the latent images are developed to be visible images (toner images).

• Meanwhile the paper is fed to the image transfer section in

synchronization with the image lead edge.

• The toner image is transferred on the paper.

5 4 3 2

To MCU PWB

The basic resolution indicates the scanner capacity. The basic resolution is expressed in dpi (dot/inch) which shows the number of light emitting elements per inch on the document. The basic resolution of this machine is 400dpi. In the sub scanning direction, at the same time, the motor that drives the optical system is controlled to scan the image at the basic resolution.

6 – 1

AR-161

B. Basic structure of scanner section

1 Copy lamp (Xenon lamp) Generate photo energy to scan documents. 2 Reflector (Converging plate) Collects light emitted from the copy lamp and radiate the document. 3 No. 1 mirror Refracts the reflection light from the document to No. 2 mirror. 4 No. 2 mirror Refracts the reflection light from No. 1 mirror. 5 No. 3 mirror Refracts the reflection light from No. 2 mirror. 6 Lens Converges reflected light from the document to form images on the CCD element. 7 No. 2/3 mirror unit Includes No. 2/3 mirror. Driven in synchronization with the copy lamp unit. 8 Copy lamp unit Includes the copy lamp, the reflector, and No. 1 mirror. Driven in synchronization with No. 2/3

mirror unit by the mirror motor.

9 CCD PWB Reflected light (image) formed on the CCD is converted into electrical signals (analog signals)

10 Mirror motor Drives the copy lamp unit and No. 2/3 mirror unit according to the scanning speed. 11 MHPS (Mirror home position sensor) Detects the home position of No. 2/3 mirror unit. 12 Reference white plate Reference white sheet for scanning documents. The reference line of magnification ratio

13 OC glass Glass table to put a document on it.

The light from the light source (Xenon lamp) is reflected by a document and passed through three mirrors and reduction lenses to the CCD element (image sensor) where images are formed. This system is known as the reduction image sensor system. Photo energy on the CCD element is converted into electrical signals (analog signals). (Photo-electric conversion). The output signals (analog signals) are converted into digital signals (A/D conversion) and passed to the MCU (main control/image process section). The resolution at that time is 400dpi. The mirror unit in the scanner section is driven by the mirror motor. The MHPS is provided to detect the home position of the copy lamp unit.

then into digital signals and sent to the MCU.

adjustment during SIM is also drawn.

3. Process section

A. Basic structure

1 Main charger unit Charges the OPC drum. 2 Cleaning blade Collects waste toner on the OPC

drum.

3 OPC drum Images are formed by laser beams

electrically, and toner is attached to the image.

4 Transfer unit Toner on the OPC drum is transferred

to the print paper by the potential difference.

5 Resist roller Makes synchronization between the

paper and the print image.

6 MG roller Magnetic brush is formed by

developer to put toner on the OPC drum.

7 (Laser beam) Forms images on the OPC drum.

6 – 2

AR-161

Operation cycle

High voltage power

Laser scanning unit

Paper exit roller

Paper exit

Main charger

Waste toner box

Laser beam

Cleaning blade

Charging

Heat roller

Fusing

Exposure

Cleaning

Developing

Developer

Separation

Transfer

Separation charger

Transfer

Synchronization with drum

Transfer charger

Resist roller

High voltage power

Developing unit

Toner hopper

B. Outline of print process

The printer section of this machine employs the laser print system where print images are formed by the laser beams on the OPC drum.

A high voltage (corona) is applied from the main charger to the OPC drum to charge the OPC drum.

Laser beams are radiated to the charged OPC drum to form electrical images on the OPC drum. (Exposure)

(At that time, the print image on the OPC drum cannot be seen: latent electrostatic image)

By the potential difference between the unexposed area and the latent electrostatic images, toner ia attracted only to the images.(Developing)

(At that time, the print image formed by toner on the OPC drum can be seen. Visible images)

The toner image on the OPC drum is transferred on the print paper by the transfer corona (voltage).

After that, the print paper with the toner image on it is subject to heat and pressure in the fusing section to fuse the image on the paper.

This machine employs the following organic photoconductor (OPC) drum.

An OPC drum is used for the photoconductor. (Structure of the OP C dru m layers)

OPC layer (20microns thick) Pigment layer (0.2 to 0.3 microns thick) Alumi nium drum

Toner

Manual paper feed

Cassette paper feed

C. Actual print process

(1) Charging

A high voltage is applied to the main charger, and negative charges are discharged to the OPC drum. A screen grid is provided between the main charger and the OPC drum, and negative charges are uniformly charged on the OPC drum surface.

Positive charges are attracted by the negative electrode on the OPC drum surface and excited in the aluminum layer in the OPC drum.

DC5.5KV

(-525V/-400V)

6 – 3

AR-161

(2) Exposure

A Laser beam is generated from the semiconductor laser and controlled by the print pattern signal. The laser writes onto the OPC drum surface through the polygon mirrors and lens. The resistance of the OPC layer decreases for an area exposed by the laser beam (corresponding to the print pattern signal). The beam neutralizes the negative charge. An electrostatic latent image is formed on the drum surface.

Semiconductor laser

Exposure (semiconductor laser)

OPC layer

Pigment layer

Aluminum layer

Drum surface charge sfter the exposure

Non-image area Image area

OPC layer

Pigment layer

Aluminum layer

Non-image area

-600

Drum surface potential

-400

Developing bias

Image area

Residual potential (-50 to -100V)

Charge Exposure Developing Transfer

Toner at tract potential

Time

Charge

Discharge

Toner is attracted over the shadowed area because of the developing bias.

(4) Transfer

The visible image on the drum surface is transferred onto the print paper by applying a positive charge from the transfer corona to the backside of the print paper.

(3) Developing (DC bias)

A bias potential is applied to the MG roller in the two component magnetic brush developing method, and the toner is charged negative through friction with the carrier. Non-image area of the drum surface charged with negative potential repel the toner, whereas the laser exposed portions where no negative charges exist, attract the toner. As a result, a visible image appears on the drum surface.

: Carrier (Magnetized particle) : Toner (Charge negative by friction)

(N) (S) : Pemanent magnet (provided in three locations)

-400v

MG roller

-8V

(5) Separation

Since the print paper is charged positively by the transfer corona, it is discharged by the separation corona. The separation corona is connected to ground.

(6) Cleaning

Toner remaining on the drum is removed and collected by the cleaning blade. It is transported to the waste toner collecting section in the cleaning unit by the waste toner transport roller.

6 – 4

AR-161

(7) Optical discharge (Semiconductor laser)

Before the drum rotation is stopped, the semiconductor laser is radiated onto the drum to reduce the electrical resistance in the OPC layer and eliminate residual charge, providing a uniform state to the drum surface for the next page to be printed. When the electrical resistance is reduced, positive charges on the aluminum layer are moved and neutralized with negative charges on the OPC layer.

Semiconductor laser

a. Charge by the Scorotron charger <1> Function

The Scorotron charger functions to maintain the surface potential of the drum even at all times which. It is used to control the surface potential regardless of the charge characteristics of the photoconductor.

<2> Basic function

A screen grid is placed between the saw tooth and the photoconductor. A stable voltage is added to the screen grid to maintain the corona current on the photoconductor. As the photoconductor is charged by the saw tooth from the main corona unit, the surface potential increases. This increases the current flowing through the screen grid. When the photoconductor potential nears the grid potential, the current turns to flow to the grid so that the photoconductor potential can be maintained at a stable level.

b. Process controlling <1> Function

The print pattern signal is converted into an invisible image by the semiconductor laser using negative to positive (reversible) developing method. Therefore, if the developing bias is added before the drum is charged, toner is attracted onto the drum. If the developing bias is not added when the drum is charged, the carrier is attracted to the drum because of the strong electrostatic force of the drum. To avoid this, the process is controlled by adjusting the drum potential and the grid potential of the Scorotron charger.

<2> Basic function

Voltage added to the screen grid can be selected, high and low. To make it easily understood, the figure below shows voltage transition at the developer unit.

START STOP

Toner at tract potential

Low

High

<3> Start

1) Because the grid potential is at a low level, the drum potential is at about –400V. (Carrier may not be attracted though the carrier is pulled towards the drum by the electrostatic force of –400V.)

2) Developing bias (–400V) is applied when the photoconductor potential is switched from LOW to HIGH.

3) Once developing bias (–400V) is applied and the photo conductor potential rises to HIGH, toner will not be attracted to the drum.

Print potentioal

Developing bias

Drum potential

Time

<4> Stop

The reverse sequence takes place.

c. Retaining developing bias at an abnormal occurrence <1> Function

The developing bias will be lost if the power supply was removed during print process. In this event, the drum potential slightly abates and the carrier makes deposits on the drum because of strong static power. To prevent this, the machine incorporates a function to retain the developing bias for a certain period and decrease the voltage gradually against possible power loss.

<2> Basic function

Normally, the developing bias voltage is retained for a certain time before the drum comes to a complete stop if the machine should stop before completing the normal print cycle. The developing bias can be added before resuming the operation after an abnormal interruption. Therefore, carrier will not make a deposit on the drum surface.

4. Laser unit

The image data sent from the MCU (image process circuit) is sent to the LSU (laser uni t), where it is converted in to laser beams.

A. Basic structure

The LSU unit is the writing section of the digital optical system. The semiconductor laser is used as the light source, and images are formed on the OPC drum by the polygon mirror and fθ lens, etc.

The laser beams are passed through the collimator lens, the cylindrical lens, the polygon mirror, the fθ lens, and the mirror to form images on the OPC drum in the main scanning direction. The laser emitting PWB is provided with the APC (auto power control) in order to eliminate fluctuations in the laser power. The BD PWB works for measurement of the laser writing start point.

1 Semiconductor laser Generates laser beams 2 Collimator lens Converges laser beams in parallel 3 Polygon

mirror,polygon motor

4 BD (Mirror, lens,

PWB)

5fθ lens Converges laser beams at a spot

6 Laser emitting PWB Emits laser beams according to the

Reflects laser beams at a constant rpm

Detects start timing of laser scanning

on the drum. Makes the laser scanning speeds at both ends of the drum same as each other. (Refer to the figure below.)

image data.

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AR-161

Makes the laser scanning speeds at both ends of the drum same as each other.

a ≠ b ≠ c

d = e = f

5. Paper feed section

A. Basic structure

B. Laser beam path

1 No. 1 cassette paper feed roller (Semi-circular roller) Picks up paper from No. 1 cassette. 2 Main motor Drives the process section and the paper transport section. 3 No. 1 cassette paper feed solenoid Rotates and controls No. 1 cassette paper feed roller. 4 No. 1 cassette paper feed roller clutch Drives No. 1 cassette paper feed roller. 5 Manual paper feed roller Picks up paper from the manual paper feed tray. 6 Manual paper transport roller Transport paper which was picked up from the manual paper feed tray. 7 Manual paper feed roller clutch Drives the manual paper feed roller. 8 Manual paper transport roller clutch Drives the manual paper transport roller.

9 Manual paper feed roller solenoid Rotates and controls the manual paper feed roller. 10 Manual paper transport roller solenoid Rotates and controls the manual paper transport roller. 11 Resist roller Takes synchronization between the paper lead edge and the image lead edge. 12 Resist roller clutch Drives the resist roller. 13 Resist roller solenoid Rotates and controls the resist roller.

B. Brief descriptions of operations

This machine allows two ways of paper feed system: cassette paper feed and manual paper feed. The cassette of universal type is employed to hold 250 sheets. The front loading system allows to attach or detach the cassette from the front of the machine. Paper size can be selected by the user.

Paper size detection is set by the software. (User setting is allowed.) By installing the optional 1-step paper feed unit or the multi-step paper feed unit, the capacity of paper can be increased.

(1) Cassette paper feed operation

Select the cassette and press the START button, and the paper feed roller solenoid will be turned on and the paper feed clutch will be released. The drive power of the main motor is transmitted through the paper feed roller clutch to the paper feed roller, rotating the paper feed roller and feeding paper.

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AR-161

(2) Manual paper feed tray operation

Select the manual paper feed tray and press the START button, and the manual paper feed roller will be turned on to bring the paper feed roller in contact with paper and lift the shutter simultaneously. The drive power of the main motor is transmitted through the manual paper feed roller clutch to the manual paper feed roller, rotating the manual paper feed roller and feeding paper.

(3) Resist roller

In order to make synchronization between the paper lead edge fed from the paper feed port and the image lead edge, the roller is kept stationary for a certain time after the paper reaches at the roller to warp the paper a little. When the paper is warped to a certain level, the resist roller solenoid is turned on to release the resist roller clutch. The drive power of the main motor is transmitted through the resist roller clutch to the resist roller, rotating the resist roller and feeding paper.

6. Fusing section

A. Basic composition

B. Heat roller

A pressure roller is used for the heat roller and a silicone rubber roller is used for the lower heat roller for better toner fusing performance and paper separation.

C. Separator pawl

Four separator pawls are used on the upper heat roller. The separator pawls are teflon coated to reduce friction with the roller and prevent a smear on the paper caused by the separator pawl.

D. Thermal control

1) The heater lamp, thermistor, main PWB, DC power supply PWB, and triac within the power supply unit are used to control the temperature in the fuser unit.To prevent against abnormally high temperature in the fuser unit, a thermostat is used for safety purposes.

Heated by the heater lamp.

(950W )

Safety device

(thermal breaker, thermal fuse)

The surface temperature

of the upper heat roller is sensed by the thermistor.

(Top view)

1 Before-fusing

paper guide

2 Upper heat roller Applies heat and pressure to the

3 Thermistor Detects the surface temperature of

4 Thermostat Stops power supply to the heat roller

5 Separation pawl Separates the print paper from the

6 POD1 Detects that the paper has been

7 Heater lamp Heats the heat roller. 8 Lower heat roller Applies a pressure to the paper

Guides the paper transported from the process section to the fusing unit.

paper to fuse.

the upper heat roller.

in case of an abnormally high temperature of the heat roller.

upper heat roller.

transported from the fusing section.

together with the upper heat roller.

Level of the thermistor is

Triac (in the power supply unit)

2) The surface temperature of the upper heat roller is set to 180˚C ~ 195˚C. The surface temperature during the power save mode is set to 100˚C.

3) The self-check function comes active when one of the following malfunctions occurs, and an "H" is displayed on the copy quantity display.

Fusing temperature error value H4 (Low temperature error)

controlled by the main PWB.

With the signal from the main PWB, the triac is

controlled on and off.

(power supply PWB )

• During machine operation

The case where the fusing temperature (thermistor output value) does not reach 155˚C within 55 sec from lighting of the heater lamp. (If the toner motor rotates for 10 sec or more continuously when starting the machine, the case where the fusing temperature does not reach 155˚C within 60 sec.)

• During printing

When the fusing temperature (thermistor output value) falls

below 145˚C. H3 (High temperature error) Fusing temperature (thermistor output value) of about 220 to

240˚C (varies depending on the resistance.)

E. Fusing resistor

(1) Fusing resistor

Since the upper heat roller is conductive when copy paper is highly moistured and the distance between the transfer unit and the fusing unit is short, the transfer current leaks through the copy paper, the upper heat roller and the discharging brush. To prevent against this, a resistor of 150MOhm is provided between the frame and the discharge brush to minimize leak current and improve transfer efficiency.

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Sharp AR-161, AR-160 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual