SHARP ARM351U, ARM451U, ARM355U, ARM455U Service Manual

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Page 1

SERVICE MANUAL

CODE: 00ZARM455UA1E

DIGITAL MULTIFUNCTIONAL SYSTEM

AR-M351U/M451U

MODEL

CONTENTS

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

[2] CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

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

[4] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

[5] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . . 5-1

[6] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 6-1

[7] MAINTENANCE AND DETAILS OF EACH SECTION. . . . . . . . . . 7-1

[8] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[9] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

AR-M355U/M455U

[10] MACHINE OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

[11] TROUBLE CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

[12] ROM VERSION-UP METHOD . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

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

Parts marked with “ ” are 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.

Page 2

CAUTION

Cautions on laser

Wave length

Pulse times

Output power

North America:

Europe:

785 nm

+10 nm

−15 nm

35 cpm model: (6.2 µs ± 6.2 ns)/7 mm 45 cpm model: (4.8 µs ± 4.8 ns)/7 mm

0.2 mW - 0.4 mW

At the production line, the output power of the scanner unit is adjusted to 0.4 MILLIWATT PLUS 8 % and is maintained constant by the operation of the Automatic Power Control (APC).

Caution

This product contains a low power laser device. To ensure safety do not remove any cover or attempt to gain access to the inside of the product. Refer all servicing to qualified personnel.

For North America:

SAFETY PRECAUTIONS

This Digital Equipment is rated Class 1 and complies with 21 CFR 1040.10 and 1040.11 of the CDRH standards. This means that the equipment does not produce hazardous laser radiation. For your safety, observe the precautions below.

●

Do not remove the cabinet, operation panel or any other covers.

●

The equipment's exterior covers contain several safety interlock switches. Do not bypass any safety interlock by inserting wedges or other items into switch slots.

Caution

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

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

Laserstrahl

CAUTION

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

VORSICHT

USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLNING.

ADVARSEL

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

ADVERSEL

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

VARNING

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

VARO !

CLASS 1

LASER PRODUCT

LASER KLASSE 1

For Europe:

CLASS 1 LASER PRODUCT

LASER KLASSE 1

LUOKAN 1 LASERLAITE

KLASS 1 LASERAPPARAT

CAUTION

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

VORSICHT

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

ADVARSEL

USYNLIG LASERSTRÅLNING VED ÅBNING, NÅR SIKKERHEDSBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLNING.

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.

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CONTENTS

[1] GENERAL

1. Note for servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

A. Cautions for servicing . . . . . . . . . . . . . . . . . . . . . .1-1

[2] CONFIGURATION

1. System configuration . . . . . . . . . . . . . . . . . . . . . . . . .2-1

A. Basic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

B. Option lineup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

C. List of combination of peripheral devices . . . . . . .2-4

[3] SPECIFICATIONS

1. Basic Specification . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

A. Base Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

B. Document Feeding Equipment . . . . . . . . . . . . . . .3-2

C. Output Equipment . . . . . . . . . . . . . . . . . . . . . . . . .3-2

2. Specific Function . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

A. Printer Function . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

B. Image send function . . . . . . . . . . . . . . . . . . . . . . .3-5

C. Copy function . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

3. B/W Scanner Module (DSPF). . . . . . . . . . . . . . . . . . .3-8

4. Rack for Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

[4] CONSUMABLE PARTS

1. Supply system table . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

A. European Subsidiary/East Europe/Russia/

Australia/New Zealand . . . . . . . . . . . . . . . . . . . . .4-1

B. Taiwan (Aurora). . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

C. Asia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

D. Middle East/Africa/Israel/Philippines. . . . . . . . . . .4-1

E. Hong Kong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

F. China. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

2. Maintenance parts list. . . . . . . . . . . . . . . . . . . . . . . . .4-2

A. Europe/Australia/New Zealand/Taiwan . . . . . . . . .4-2

B. Agency/Asia/Middle East/Africa/

Latin America . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

C. Hong Kong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

D. China. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

2. Production number identification . . . . . . . . . . . . . . . .4-4

A. Drum cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

B. Toner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

C. Developer cartridge . . . . . . . . . . . . . . . . . . . . . . . .4-4

3. Environmental conditions . . . . . . . . . . . . . . . . . . . . . .4-4

A. Operating conditions . . . . . . . . . . . . . . . . . . . . . . .4-4

B. Storage conditions. . . . . . . . . . . . . . . . . . . . . . . . .4-4

[5] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

2. Interior. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

3. Operation panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

4. Job status screen (common to print, copy, fax,

network scan and Internet fax) . . . . . . . . . . . . . . . . . 5-4

5. Cross sectional view . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

A. Scanner unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

6. Switch, Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

A. Scanner unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

7. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

A. Scanner unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

8. Motor, Clutch, Solenoid . . . . . . . . . . . . . . . . . . . . . . . 5-8

A. Scanner unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

[6] UNPACKING AND INSTALLATION

1. Installing procedure flowchart . . . . . . . . . . . . . . . . . . 6-1

2. Note for installation place . . . . . . . . . . . . . . . . . . . . . 6-2

3. Unpacking procedure . . . . . . . . . . . . . . . . . . . . . . . . 6-2

A. AR-M355U/M455U (North America),

AR-M351U/M451U (Europe) . . . . . . . . . . . . . . . . 6-2

B. AR-M351U/M451U (Except for Europe) . . . . . . . 6-2

4. Remove the locking tape (AR-M355U/M455U (North America),

AR-M351U/M451U (Europe)) . . . . . . . . . . . . . . . . . . 6-3

5. Unpacking and installation of the desk unit . . . . . . . . 6-3

A. AR-D28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

B. AR-D27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

C. AR-MU2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6. Unpacking and installation of the rack (AR-RK2)

(Except for North America/Europe) . . . . . . . . . . . . . . 6-9

7. Unpacking and installation of the AR-EF3

(Except for North America/Europe) . . . . . . . . . . . . . 6-10

8. Machine installing procedure. . . . . . . . . . . . . . . . . . 6-11

A. Setting related to process . . . . . . . . . . . . . . . . . 6-11

B. Toner cartridge settings . . . . . . . . . . . . . . . . . . . 6-11

C. Setting related to fusing . . . . . . . . . . . . . . . . . . . 6-12

D. Paper setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

9. Automatic developer adjustment . . . . . . . . . . . . . . . 6-12

10. Print test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

11. Distortion adjustment

(Except for North America/Europe) . . . . . . . . . . . . . 6-13

12. Attach the document scanning label . . . . . . . . . . . . 6-13

13. Key sheet attachment . . . . . . . . . . . . . . . . . . . . . . . 6-13

14. Adjuster installation and adjustment . . . . . . . . . . . . 6-14

15. Using the transport handle . . . . . . . . . . . . . . . . . . . 6-14

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[7] MAINTENANCE AND DETAILS OF EACH SECTION

[Maintenance System Table] . . . . . . . . . . . . . . . . . . . . . . .7-1

1. Engine section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

2. Scanner / DSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

3. Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

[DETAILS OF EACH SECTION] . . . . . . . . . . . . . . . . . . . .7-4

1. Process section . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4

[OPC drum section] . . . . . . . . . . . . . . . . . . . . . . . . . .7-6

[Transfer section] . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11

[Developing section] . . . . . . . . . . . . . . . . . . . . . . . . .7-16

2. Fusing section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-21

3. Paper feed section . . . . . . . . . . . . . . . . . . . . . . . . . .7-26

4. Transport section/Paper exit reverse section . . . . . .7-33

5. Laser scanner section. . . . . . . . . . . . . . . . . . . . . . . .7-43

6. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-46

7. DSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-54

8. Operation panel section . . . . . . . . . . . . . . . . . . . . . .7-62

9. Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-66

10. Drive section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-67

11. Power section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-69

12. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-72

13. Fan motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-74

[8] ADJUSTMENTS

1. Process section . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1

A. Doctor gap adjustment . . . . . . . . . . . . . . . . . . . . .8-1

B. MG roller main pole position adjustment . . . . . . . .8-1

C. High voltage output adjustment. . . . . . . . . . . . . . .8-2

2. Image check, adjustment . . . . . . . . . . . . . . . . . . . . . .8-3

A. Adjustments on the engine side . . . . . . . . . . . . . .8-3

B. Adjustment on the scanner side . . . . . . . . . . . . . .8-6

3. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10

A. OC scan distortion adjustment

(MB-B rail height adjustment) . . . . . . . . . . . . . . .8-10

B. Vertical image distortion balance

adjustment (Copy lamp unit installing

position adjustment) . . . . . . . . . . . . . . . . . . . . . .8-11

C. Vertical image distortion balance adjustment

(No. 2/3 mirror base unit installing and

position adjustment) . . . . . . . . . . . . . . . . . . . . . .8-11

D. Vertical (sub scanning direction) distortion

adjustment [Winding pulley position

adjustment] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11

E. Height adjustment of original detection light

emitting unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12

F. Original size detection photo sensor check. . . . .8-12

G. Original size detection photo sensor

adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12

H. Image density adjustment . . . . . . . . . . . . . . . . . .8-13

I. DSPF width detection adjustment. . . . . . . . . . . .8-17

[9] SIMULATION

1. Outline and purpose . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

2. Code-type simulation. . . . . . . . . . . . . . . . . . . . . . . . . 9-1

A. Operating procedures and operations . . . . . . . . . 9-1

B. Simulation list. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

C. Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

3. Other related items . . . . . . . . . . . . . . . . . . . . . . . . . 9-87

[10] MACHINE OPERATION

1. Acceptable originals . . . . . . . . . . . . . . . . . . . . . . . . 10-1

A. Size and weight of acceptable originals. . . . . . . 10-1

B. Total number of originals that can be set

in the document feeder tray . . . . . . . . . . . . . . . . 10-1

2. Standard original placement orientations . . . . . . . . 10-1

3. Automatic copy image rotation -

rotation copying. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

4. Specifications of paper trays . . . . . . . . . . . . . . . . . . 10-2

A. Applicable plain paper . . . . . . . . . . . . . . . . . . . . 10-2

B. Applicable special paper . . . . . . . . . . . . . . . . . . 10-3

5. Printing onto envelopes. . . . . . . . . . . . . . . . . . . . . . 10-3

A. Fusing unit pressure adjusting levers . . . . . . . . 10-3

[11] TROUBLE CODES

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

2. Trouble codes list . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

3. Details of trouble codes. . . . . . . . . . . . . . . . . . . . . . 11-3

4. Other related items . . . . . . . . . . . . . . . . . . . . . . . . 11-14

[12] ROM VERSION-UP METHOD

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

2. Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

3. Flash ROM update procedures . . . . . . . . . . . . . . . . 12-1

A. Preliminary arrangement . . . . . . . . . . . . . . . . . . 12-1

B. Update procedure 1 (Writing with each ROM

inserted to the specified slot) . . . . . . . . . . . . . . . 12-2

C. Update procedures 2 (Writing to each ROM

by use of CN6 of the controller PWB) . . . . . . . . 12-2

D. In case of “Result: NG” . . . . . . . . . . . . . . . . . . . 12-3

E. Turning off the power during update . . . . . . . . . 12-3

F. Update window display in normal booting . . . . . 12-3

G. Update process flow . . . . . . . . . . . . . . . . . . . . . 12-3

[13] ELECTRICAL SECTION

1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

2. Actual wiring chart. . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

3. Signal name list . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-19

Page 5

[1] GENERAL

1. Note for servicing

Pictogram

This Service Manual uses some pictographs to assure safe operation.

Please understand the meanings of pictographs before servicing. CAUTION: If this CAUTION is ignored, an injury or damage to

A. Cautions for servicing

1) Do not touch the photoconductive drum. Scratches or

2) The fusing unit is extremely hot. Exercise care in this area.

3) Do not look directly at the light source of the scanner module.

4) Five adjusters are provided on all optional stand/paper drawer

property could occur.

smudges on the drum will cause dirty printouts.

Fusing unit

Doing so may damage your eyes.

units. These adjusters should be lowered until they contact the floor.

Adjuster

Lock

5) Do not make any modifications to this machine. Doing so may result in personal injury or damage to the machine.

6) Since this machine is heavy, it is recommended that it be moved by more than one person to prevent injury.

7) When connecting this machine to a computer, be sure to first turn both the computer and the machine off.

8) Do not print anything which is prohibited from printing by law. The following items are normally prohibited from printing by national law. Other items may be prohibited by local law.

• Money

• Stamps

• Bonds

• Stocks

• Bank drafts

• Checks

• Passports

• Driver's licenses

9) Do not throw toner or a toner cartridge into fire. Toner may be spattered, causing a burn.

10) Store toner or toner cartridges in a hard-to-reach place for children.

Release

AR-M351U/M451U, AR-M355U/M455U GENERAL 1 - 1

Page 6

[2] CONFIGURATION

1. System configuration

A. Basic system

AR-M351U/M451U

(Copier/Printer model)

Necessary options

• Any one of the stand/MPD & 2000 sheet paper drawer (AR-D28), the stand/3 x 500 sheet paper drawer (AR-D27), or the multi purpose drawer (AR-MU2)*

• Any one of the upper exit tray extension (AR-TE4), the finisher (AR-FN6), the mail-bin stacker (AR-MS1), or the right upper exit tray (AR-TE5)

• AR-EF3

• AR-RK2

* To install the AR-MU2, the exclusive-use desk is required.

AR-M355U/M455U

(Copier model)

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 1

Page 7

B. Option lineup

For combinations of options, refer to "C. List of combination of peripheral devices" described later.

(1) Major options

7. Exit tray

(AR-TE3)

10. Saddle stitch finisher (AR-FN7)

8. Duplex module/bypass tray (AR-DU4)

9. Duplex module (AR-DU3)

5. Upper exit tray (AR-TE4)

1. Scanner module with DSPF (AR-EF3)

11. Finisher (AR-FN6)

6. Right upper exit tray (AR-TE5)

12. Mail-bin stacker (AR-MS1)

13. Fax expansion kit (AR-FX12)

3. Stand/3 x 500 sheet paper drawer (AR-D27)

4. Multi purpose drawer (AR-MU2)

2. Stand/MPD & 2000 sheet paper drawer (AR-D28)

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 2

Page 8

No. Option item Installing conditions

1 Scanner module with DSPF AR-EF3 2 Stand/MPD & 2000 sheet paper drawer AR-D28 • Simultaneous installation with the large capacity paper feed 3 Stand/3 x 500 sheet paper drawer AR-D27

4 Multi purpose drawer AR-MU2 5 Upper exit tray AR-TE4 • Required when the finisher (AR-FN6) or the mail-bin stacker

6 Right upper exit tray AR-TE5 7 Exit tray AR-TE3 • Required when the duplex module (AR-DU3) is installed and

8 Duplex module/bypass tray AR-DU4 • Any one of the multi purpose drawer (AR-MU2), the stand/3 x 9 Duplex module AR-DU3

10 Saddle stitch finisher AR-FN7 • Simultaneous installation with the finisher (AR-FN6) is

11 Finisher AR-FN6 • Simultaneous installation with the saddle finisher (AR-FN7) is

12 Mail-bin stacker AR-MS1 • Any one of the multi paper drawer (AR-MU2), the stand/3 x

13 Fax expansion kit AR-FX12 • The stand/3 x 500 sheet paper drawer (AR-D27), or the stand/

desk (AR-D28) or the 3-stage paper feed desk (AR-D27) is inhibited.

(AR-MS1) is not installed.

the saddle stitch finisher (AR-FN7) is not installed.

500 sheet paper drawer (AR-D27), or the stand/MPD & 2000 sheet paper drawer (AR-D28) is required.

• The duplex module/bypass tray (AR-DU4) cannot be installed with the exit tray (AR-TE3) or the saddle stitch finisher (ARFN7).

• When the duplex module (AR-DU3) is installed, the exit tray (AR-TE3) or the saddle stitch finisher (AR-FN7) is required.

inhibited.

• The duplex module (AR-DU3) is required.

• The stand/3 x 500 sheet paper drawer (AR-D27) or the stand/

MPD & 2000 sheet paper drawer (AR-D28) is required.

inhibited.

• Any one of the multi paper drawer (AR-MU2), the stand/3 x 500 sheet paper drawer (AR-D27), or the stand/MPD & 2000 sheet paper drawer (AR-D28) is required.

500 sheet paper drawer (AR-D27), or the stand/MPD & 2000 sheet paper drawer (AR-D28) is required.

MPD & 2000 sheet paper drawer (AR-D28) is required.

(2) Other options

❍: Installable ✕: Not available

Main unit

Option item

Paper exit unit Punch unit AR-PN1 ❍❍For saddle stitch finisher (AR-FN7) Function

expansion options

FAX-related option

Printer expansion kit AR-P20 ✕❍ Printer expansion kit (with HDD) AR-P21 ✕❍ Printer server card AR-NC7 ❍✕ Printer server card (with HDD) AR-NC8 ❍✕ PS3 expansion kit AR-PK6 ❍❍ Network scanner expansion kit AR-NS3 ❍❍ Sharpdesk 1 license kit AR-U11M ❍❍For network scanner expansion kit Sharpdesk 5 license kit AR-U15M ❍❍ Sharpdesk 50 license kit AR-U1AM ❍❍ Sharpdesk 100 license kit AR-U1BM ❍❍ Data security kit AR-FR22/FR22U ❍❍ Data security kit AR-FR21/FR21U

Bar code font AR-PF1 ❍❍ Flash ROM kit AR-PF2

Fax memory (8 MB) AR-MM9

AR-M351U/

M451U

❍❍

AR-M355U/

M455U

Installing conditions

(AR-NS3)

When the AR-P21 or the AR-NC8 is installed.

Cannot be installed together with the AR-P21 or the AR-NC8.

For fax expansion kit (AR-FX12)

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 3

Page 9

C. List of combination of peripheral devices

As shown in the table below, some other peripheral devices (B) may be needed for installation of a peripheral device (A) and some peripheral devices cannot be installed together.

xpansion kit

Related to paper feed unit

Multi purpose drawer Stand/3 x 500 sheet

paper drawer

Stand/MPD & 2000 sheet paper drawer

Duple

x module/bypass tray Duplex module Scanner module with DSPF

Output units

Saddle stitch finisher Finisher Mail-bin stacker Exit tray Upper e

xit tray

Punch unit

Related to extension of functions and others

Printer expansion kit Printer expansion kit (with HDD) Print server card Print server card (with HDD)

PS3 expansion kit Network scanner expansion kit Facsimile expansion kit Fax memory (8 MB) Bar code font

Flash ROM kit AR-PF2

Data security kit Data security kit Data security kit Data security kit

AR-MU2

AR-D27

AR-D28

AR-DU4 AR-DU3 AR-EF3

AR-FN7 AR-FN6

AR-MS1 AR-TE3 AR-TE4 AR-TE5Right upper exit tray AR-PN1

AR-P20 AR-P21 AR-NC7 AR-NC8

AR-PK6 AR-NS3 AR-FX12 AR-MM9 AR-PF1

AR-FR22 AR-FR22U AR-FR21 AR-FR21U

Multi purpose drawer

Stand/3 x 500 sheet paper drawer

Stand/MPD & 2000 sheet

Duplex module/bypass tray

Duplex module

Saddle stitch finisher

Finisher

Mail-bin stacker

Scanner module with DSPF

Exit tray

Punch unit

Right upper exit tray

Upper exit tray

Network scanner expansion kit

Printer expansion kit

Printer expansion kit (with HDD)

PS3 e

Print server card

Print server card (with HDD)

Bar code font

Facsimile expansion kit

Fax memory (8 MB)

Flash ROM kit

Data security kit (AR-FR22)

Data security kit (AR-FR22U)

Data security kit (AR-FR21)

Data security kit (AR-FR21U)

= Must be installed together.

= Any of the units must be installed together.

= Cannot be installed together.

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 4

Page 10

[3] SPECIFICATIONS

1. Basic Specification

A. Base Engine

(1) Form

Console type

(2) Engine speed

Paper size

A4, 8.5" x 11" 35ppm (31ppm*) 45ppm (40ppm*) A4R, 8.5" x 11"R 25ppm 30ppm A5R/5.5" x 8.5"R, Invoice-R 35ppm 45ppm B5 35ppm 45ppm B5R, Executive-R 25ppm 30ppm B4/8.5" x 14" 20ppm 22ppm A3/11" x 17" 17ppm 20ppm 8K 17ppm 20ppm 16K 35ppm 45ppm

* Paper feed from Manual bypass tray

AR-M351U/

M355U

(3) Engine composition

Photoconductor type OPC

Record method Electro-photograph (laser) Development method Dry-type dual-component magnetic

Charge method Charged saw-tooth method Transfer method Transfer roller Cleaning method Counter blade Fusing method Heat roller

(diameter of photoconductor : ø30mm)

brush development

(4) Engine resolution

Resolution Read: 600dpi

Write: 600dpi Smoothing Write: 1200dpi equivalent Gradation Write: 2 levels

(5) Printable area

The print area of this product is shown below.

Paper size

Printable area

If a printer driver for Windows or Macintosh is used for printing, the printable area will be smaller. The actual printable area depends on the printer driver to be used.

AR-M451U/

M455U

(in mm)

Paper size A B C D E A3 297 420 4 289 4 B4 257 364 4 242 4 A4 210 297 4 202 4 B5 182 257 4 168 4 A5 148 210 4 140 4 Japanese postcard 100 148 4 92 4 Ledger 279 432 4 271 4 Legal 216 356 4 208 4 Foolscap 216 330 4 208 4 Letter 216 279 4 208 4 Executive 184 267 4 183 4 Invoice 140 216 4 132 4 Com-10 (envelope) 105 241 4 97 4 C5 (envelope) 162 229 4 154 4 Monarch (envelope) 98 191 4 90 4 DL (envelope) 110 220 4 102 4 ISO B5 (envelope) 176 250 4 168 4

(6) Warm-up

Warm-up time less than 80 seconds Pre-heat requirement Required Jam recovery time Target: about 30 seconds

(Under standard condition of 60 seconds left after side cover opening, polygon motor halt)

(7) Power source

Voltage 100V system 200V system

100-127V 220-240V Frequency 50/60Hz Power cord Inlet type

(8) Power consumption

Max. Power consumption

AR-M351U/

M355U Except for Taiwan 1440W 1440W Taiwan 1550W 1550W 200V 1850W 1850W

AR-M451U/

M455U

(9) Energy Star benchmark

AR-M351U/M355U AR-M451U/M455U Low power mode 184.75W 223.25W Recovery time from

low power mode Sleep mode Less than 80W Less than 95W Transition time to sleep mode

Max. 30 sec. Max. 30 sec.

(Recommendation)

60 min. 60 min.

(10) Noise

At working less than 6.8dB At waiting mode less than 5.0dB

∗ Showing noise benchmark in each model as a whole system.

(11) Dimensions

External dimensions (W x D x H)

Occupied space dimensions (W x D) Weight Engine: Approx. 85.8 lb (38.9 kg)

37.9" x 26.2" x 44.4" (963 mm x 665 mm x 1127 mm) (including automatic document feeder)

37.9" x 26.2" (963 x 665 mm) (Include automatic document feeder)

Desk: Approx. 72.6 lb (32.9 kg) Rack: Approx. 16 lb (7.4 kg) DSPF: Approx. 46 lb (21 kg)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 1

Page 11

B. Document Feeding Equipment

(1) One-drawer tray (included in the base engine)

Paper feed method One-drawer tray Sizes to be fed A4, B5, 8.5" x 11" Paper capacity 500 sheets (at 80g/m²) Media available for

paper feeding Paper type Plain, recycled, pre-printed, pre-

Paper size switching To be switched by user

Dehumidification heater Balance detection Provided (paper empty and 3 steps) Default size setting 100V system

Mounting/demounting of the tray

Plain paper 60 - 105g/m², 16 - 28lbs

punched, color, letter head

(paper size to be entered from the operation panel). Not provided

8.5" x 11" Provided

C. Output Equipment

(1) Face-down Exit Tray (included in the base engine)

Output position/ method Output paper capacity 400 sheets (80g/m² sheet) Output paper size A3, B4, A4, A4R, B5, B5R, A5R

Spec of media for paper output

Remaining paper detection

Exit tray full detection Provided

Face-down output at the upper side of main unit

11 " x 17", 8.5" x 14", 8.5" x 13",

8.5" x 11", 8.5" x 11"R, 5.5" x 8.5"R Executive, Japanese post card, Monarch (98 x 191), 8K, 16K, 16KR Com-10 (105 x 241), DL (110 x 220), C5 (162 x 229), ISO B5 (176 x 250)

Tracing paper: 52 ~ 59g/m² / 14 ~ 15lbs Plain paper: 60 ~ 128g/m² / 16 ~ 34lbs Index paper: 176g/m² / 47lbs Cover paper: 205g/m² / 54 ~ 55lbs Transparency firm

Not provided

2. Specific Function

A. Printer Function

To enable the printer function of the AR-M355U/M455U, the printer expansion kit must be installed.

(1) Platform

IBM PC/AT (Include compatible machine) Macintosh

(2) Support OS

Custom PS Windows 95/98/Me

Windows NT 4.0 (Service Pack5 or later) Windows Server 2003 Windows 2000 Server Windows 2000 Windows XP

Custom PCL5e/6(XL)

PPD Windows 95/98/Me

Windows 95/98/Me Windows NT 4.0 (Service Pack5 or later)

Windows Server 2003 Windows 2000 Server Windows 2000 Windows XP

Windows NT 4.0 (Service Pack5 or later) Windows Server 2003 Windows 2000 Server Windows 2000 Windows XP MacOS 8.6 - 9.2.2, 10.1.5, 10.2 - 10.2.8 (except for Mac OS 10.2.2), 10.3-10.3.3

(3) PDL emulation

PCL6 compatible, PCL5e compatible, PostScript 3 compatible

(4) Windows driver function

a. General

Function PCL5e PCL6 PS

Copies 1-999 Orientation Portrait

Landscape

Duplex 1-sided

2-sided (Left /top/ right binding)

Booklet Invoice on Letter

Letter on Ledger A5 on A4 A4 on A3 B5 on B4 Letter on Letter Ledger on Ledger A4 on A4 A3 on A3

B4 on B4 Binding edge Left / top / right – N-up 2/4/6/8/9/16 2 / 4 / 6 / 9 / 16

N-up order Z / Reversed Z /

N / Reversed N N-up border Yes / No Always Yes (*2)

*1: For printing, PS driver bundled with the Windows is required. *2: Since the function is of PS driver bundled with Windows, spec-

ification may vary according to the OS.

PPD file *1

(for Windows XP)

Portrait Landscape-A Landscape-B (*2) 1-sided 2-sided (Long / short binding) (*2) Yes (2up booklet only) (*2)

(*2) Z (*2)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 2

Page 12

b. Paper Input

Function PCL5e PCL6 PS

Paper size A3 / B4 / A4 / B5 /

Paper type Plain

Custom paper type

Source selection

Cover Yes/No

Insert page Yes/No

Transparency inserts

*1: For printing, PS driver bundled with the Windows is required.

c. Paper Output

Function PCL5e PCL6 PS

Output tray selection

Staple Finisher

Offset cancel Yes/No

*1: For printing, PS driver bundled with the Windows is required.

A5 / Ledger / Legal / Foolscap / Letter / Executive /Invoice/8k / 16k /COM10/C5/ Monarch/DL

Letter Head Pre-Print Pre-Punch Recycle Color Label Heavy Paper Transparency Envelope

7 type –

Automatic Tray 1/2/3/4 Bypass-tray

User can select from 1-sided/2-sided/ No print

User can select from 1-sided/2-sided/ No print No Yes (Blank) Yes (Printed)

Center tray Finisher

• Top tray

• Offset tray

Saddle Stitch Finisher

• Offset tray Mailbin stacker

• Mailbin top tray

• Mailbin (1-7)

Duplex module

• Left tray

• No staple

• 1 staple

• 2 staples

Saddle Stitch Finisher

• No staple

• 1 staple

• 2 staples

PPD file *1

(for Windows XP)

–

PPD file *1

(for Windows XP)

Saddle Stitch Finisher

• No staple

• 1 staple

• 2 staples

d. Graphic

Function PCL5e PCL6 PS

Resolution setting Halftone setting

Graphics mode

Smoothing Yes/No Toner save Yes / No Photo enhancement Negative image Mirror image ––Horizontal

Zoom ––25-400%

Fit to page Yes / No –

*1: For printing, PS driver bundled with the Windows is required. *2: Since the function is of PS driver bundled with Windows, spec-

ification may vary according to the OS.

e. Font

Function PCL5e PCL6 PS

Download font

*1: For printing, PS driver bundled with the Windows is required. *2: Since the function is of PS driver bundled with Windows, spec-

ification may vary according to the OS.

f. Others

Function PCL5e PCL6 PS

Configuration setting

Watermark Yes Yes

Line width setting

Form overlay Yes – Print hold Yes – Confidential print Yes – Sample print Yes – Print accounting Yes – Quick sets Yes – Auto

configuration Job end

notification Tandem print Yes

Carbon print Yes – Multi-

enlargement XY zoom – Yes –

600/300 dpi 600dpi 600dpi

– No Screen frequency

8.0 to 360.0 in 0.1 steps Screen angle

0.0 to 360.0 in 0.1 steps

Raster HP-GL2

Bitmap TrueType

Raster Vector

– Yes/No ––

––Yes / No

Yes

Yes –

(The AR-P20/P21 or the AR-NC7/NC8 is required.)

––

Vertical

(XY zoom)

Bitmap Type1 TrueType

–

PPD file *1

(for Windows

XP)

–

Horizontal (*2) 1-1000% (*2)

PPD file *1

(for Windows XP) Auto Outline Bitmap Native TrueType (*2)

PPD file *1

(for Windows XP)

(functionality is

limited)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 3

Page 13

Function PCL5e PCL6 PS

Cover insert + pamphlet

Document filing Yes

*1: For printing, PS driver bundled with the Windows is required.

Yes –

(The AR-P21 or the ARNC8 is required.)

PPD file *1

(for Windows XP)

–

(5) Macintosh driver functions

a. General

Function

Copies 1-999 Orientation Portrait

Duplex 1-sided

Booklet Yes N-up 2/4/6/9/16 (*1) N-up order Z / reversed Z / N / reversed N (*1) N-up border None / Single hairline / Single thin line /

*1: Since the function is of PS driver bundled with Macintosh,

specification may vary according to the OS.

b. Paper input

Function

Paper size A3 / B4 / A4 / B5 / A5 /

Paper type Plain / Letter Head / Pre-Print /

Custom paper type

Source selection Automatic

Different 1st page Cover / insert page

Transparency inserts

*1: Since the function is of PS driver bundled with Macintosh,

specification may vary according to the OS.

Landscape-A Landscape-B (*1)

2-sided Pamphlet (Right /left /top binding)

Double hairline / Double thin line (*1)

Japanese Postcard / Ledger / Legal / Foolscap / Letter / Executive / Invoice/ 8K / 16K/ COM10/C5/Monarch/DL

Pre-Punch / Recycle / Color / Label / Heavy Paper / Transparency / Envelope

Tray 1/2/3/4 Bypass-tray Yes / No (*1)

–

(On OS9, user can select from: No/First Page/Last Page) (*1)

No Yes (Blank) Yes (Printed)

Macintosh PPD file

(for Mac OS X ver10.2.8)

Macintosh PPD file

(for Mac OS X ver10.2.8)

c. Paper output

Function

Output tray selection

Staple Finisher

Offset Yes/No

d. Graphic

Function

Resolution setting

Halftone setting – Graphics mode – Smoothing Yes/No Toner save Yes / No Photo enhancement Negative image – Mirror image – Zoom 1-100000 (*1) Fit to page –

*1: Since the function is of PS driver bundled with Macintosh,

specification may vary according to the OS.

e. Font

Function

Download font –

Center tray Finisher

• Top tray

• Offset tray

Saddle Stitch Finisher

• Offset tray Mailbin stacker

• Mailbin top tray

• Mailbin (1-7)

Duplex module

• Left tray

• No staple

• 1 staple

• 2 staples

Saddle Stitch Finisher

• No staple

• 1 staple

• 2 staples

600dpi

Yes/No

(Selectable only on MacOS9.x.x LaserWriter) (*1)

Macintosh PPD file

(for Mac OS X ver10.2.8)

Macintosh PPD file

(for Mac OS X ver10.2.8)

Macintosh PPD file

(for Mac OS X ver10.2.8)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 4

Page 14

f. Others

Function

Configuration setting Yes Watermark Yes Form overlay – Print hold Yes Confidential print Yes

Sample print Yes Print accounting Yes Quick sets – Auto configuration – (OS9: Yes) Job end notification – Tandem print Yes

Carbon print – Multi-enlargement – XY zoom – Cover insert + pamphlet – Document filing Yes (*1)

*1: Since the function is of PS driver bundled with Macintosh,

specification may vary according to the OS.

Macintosh PPD file

(for Mac OS X ver10.2.8)

(PIN selection)

(The AR-P20/P21 or the AR-NC7/ NC8 is required. (option))

(Only when the AR-P21 or the ARNC8 is installed. (option))

(6) Compatibility

PCL 5e compatibility

PCL6 compatibility

PostScript Compatibility

Target for PCL5e is to be compatible with HP LaserJet 4050. Small margin difference, rendering difference by different font family, default and transfer function difference is not to be included in the compatibility. All the PJL commands are not necessarily included in the compatibility. Target for PCL6 is to be compatible with HP LaserJet 4050. Small margin difference, rendering difference by different font family, default and transfer function difference is not to be included in the compatibility. All the PJL commands are not necessarily included in the compatibility. PostScript is targeted to be compatible with Adobe PostScript as performed in HP LaserJet

4050. Small margin difference, rendering difference by different font family, default and transfer function difference is not to be included in the compatibility.

B. Image send function

(1) Mode

Scanner (Scan to E-mail, Scan to Sharpdesk, Scan to FTP, Scan to HDD *), FAX, Internet FAX *

*: The HDD (AR-P21 or AR-NC8) is required.

(2) Support system

Mode Scanner Internet FAX FAX Supported

server

(3) Support image

Mode Scanner

Format TIFF, PDF TIFF-F,

Compression method

(4) Image process

Mode Scanner Internet FAX FAX Half tone reproduction Exposure adjustment Quality selection Resolution (Varies with the file type/ transmission method)

(5) Specified destination

Mode Scanner Internet FAX FAX LDAP Yes (Also can be stored in one-touch address.) Specified destination One-touch keys (Max. number of keys to be stored.) Group* To be registered from one-touch and manual

Program Yes (8 programs) Manual destination entry

Chain dialing (Manual destination entry)

Resend This is used to recall the last destination. Speed dialing This is used to recall address control number by

*1: When HDD is installed.

SMTP server

FTP server

Uncompressed,

G3 (1-dimension) *1,

G4 *3

*1 G3 (1-dimension) = MH

(Modified Huffman)

*3 G4 = MMR (Modified

MR)

Half-tone ON/OFF (It's not effective for the

following resolution with *.)

200 x 200dpi * 200 x 100dpi * Normal (203.2 x

300 x 300dpi 200 x 200dpi Small letter

400 x 400dpi 200 x 400dpi Fine (203.2 x

600 x 600dpi 400 x 400dpi Extra fine (406.4

– 600 x 600dpi –

Specifying by one-touch or group, manual

Max. 500 (999 *1) destinations

In this, FTP and Desktop are 100 (200 *1)

destination entry 300 (500 *1)

Soft Keyboard Input via the

POP server

SMTP server

ESMTP server

Internet

FAX

TIFF-FX

MH, MMR MH, MR,

Equivalent to 256 levels

Auto + 5 steps

97.8dpi) *

(203.2 x

195.6dpi)

391dpi)

x 391dpi)

destination entry

destinations.

numeric

keys, # key and *

key.

– Up to 64-digit

with pause

key

using numeric keys.

–

FAX

–

MMR,

JBIG

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 5

Page 15

(6) Specified multiple destinations

Mode Scanner Internet FAX FAX Specified

destination Max. number

of Manual

Specifying by one-touch or group, manual

destination entry.

Total of 100 (5000 *1) destinations including

group and relay broadcast. destination entry* Sequential broadcasting

Yes (E-mail only. It is not

available for

Yes

FTP/Desktop.)

Simultaneous

– Yes FAX transmission

*1: When HDD is installed. * Manual destination entry: Entry other than One-touch, using

numeric keys or soft keyboard.

* In the case of broadcast transmission including fax destina-

tion, the resolution level for fax mode is applied.

* In the case of broadcast transmission with Internet FAX and

Scanner destinations, the resolution level of Internet FAX mode is applied.

* In the case of broadcast transmission, the compression format

set with the key operator programs is applied.

(7) Functions

Mode Scanner

Transmit function

Memory transmit

On-hook Quick online transmit Direct transmit

Auto reduction transmit

Rotation transmit Yes Scaling transmit Yes (Scaling from regular size to regular

Re-call mode

Book original transmit Long length original transmit

Specified pages per file Maximum number of send data Sender name Max.500 (999 *1) destinations

Error Busy

–

Data is sent

by memory

transmit

when upper

limit is set.

Some functions does not allow rotation

– ––

No. of times/interval is set via key operator

Yes Yes Yes

Yes

*1: When HDD is installed.

Internet

FAX

Yes

– – Yes

–

size only.

transmit)

program.

Yes

Max. 800mm

At on-hook

Yes: A3 → B4,

A3 → A4,

B4 → A4

Yes

–

Yes

FAX

Yes

only

Yes

–

Mode Scanner

Receive function

Special function

Report/ List function

Others PC-facsimile

Auto receive Manual receive Memory receive Reduction receive for standard size Scaling receive for specified size Rotation receive Divided receive

Duplex receive

2 in 1 receive Address/Domainspecified reception is enabled. Address/Domainspecified reception is disabled. External phone connection Answering phone connection Transfer function at output trouble Auto startup mode Time setting Yes Transmit request Remote transmit Cover function Print at sender Page division Yes Page combination No Confidential (machine at the other end) Transmit broadcast direction Transmit message – Edge erase Yes Center erase Yes 2 in 1 Yes Card shot Yes Transmit/receive record Transmit/receive result Address/phone directory list Group list Yes ID/Sender's address list) Sender list Print

Confidential box check list

Transmit group list

Program list Yes Reserved transmit list Memory box list

Memory clear notice list

transmission

– Yes – – –

– –

– Yes: To be defined by key

–

– Yes 50

–

– Yes –

No Yes

administrator

address.

(It's possible that this is output in case of

–

Internet

FAX

Yes Yes Yes

–

Yes: To be defined by key

Yes

operator program

–

Yes 50

address

–

– –

–

Only the

specified

number

Yes

Yes Yes

– No

–

Yes (F code

method)

– Yes (F code

method)

Yes

–

Described in the key

–

operation list

Yes

(Integrated to

the memory

box list)

Yes

(Integrated to

the memory

box list)

–

Yes (FAX

mode only)

–

errors.)

PC-iFAX PC-FAX

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 6

Page 16

(8) Transmission method

Mode Scanner Internet FAX FAX Transmission time – 2 seconds (level:

Super G3/JBIG)

6 seconds (G3

ECM)

Modem speed – 33.6kbps →

2.4kbps

automatic fallback Intercommunication – Super G3/G3 Communication line – General

telephone line

(PSTN), Private

branch

exchange(PBX),

FAX line

ECM – Yes

(9) Record size

Mode Scanner Internet FAX FAX Max. record

293mm

width Record size – A3-A5,

11" x 17"-

5.5" x 8.5"

A3-A5,

11" x 17"-

5.5" x 8.5"

(10) F code transmission

Mode Scanner Internet FAX FAX Sub address – Yes Passcode – Yes

C. Copy function

(1) Copy Speed

AR-M351U/M355U AR-M451U/M455U

A4,

8.5" x 11" A4R,

8.5" x 11"R A5R,

5.5" x 8.5"R, Invoice-R B5 35 35 35 45 45 45 B5R, Executive-R

B4,

8.5" x 14" A3, 11" x 17" Extra, Envelope

∗ Figures in reduction/enlargement are represented by those at

the ratio to show slowest speed

(2) First copy time

Conditions: A4 or 8.5"x11" from front tray of PPC, with polygon

Document glass *1 Less than 4.9

DSPF Less than 6.0

*1: During OC mode

Actual Reduction Enlargement Actual Reduction Enlargement

35 35 35 45 45 45

25 25 25 30 30 30

35 35 35 45 45 45

25 25 25 30 30 30

20 20 20 22 22 22

17 17 17 20 20 20

motor running.

AR-M351U/M355U AR-M451U/M455U

Less than 4.4

seconds

seconds Less than 5.3

seconds

(3) Job speed

AR-M351U/M355U AR-M451U/M455U

S→ S *1 33 cpm (94%) 42 cpm (93%) S→ D *2 32 cpm (91%) 40 cpm (88%) D→ D *3 32 cpm (91%) 40 cpm (88%)

*1: S → S : A4 / 8.5" x 11" original 5 sheets copy 5sets

D : A4 / 8.5" x 11" original 10 sheets copy 5sets

*2: S

→

*3: D

D : A4 / 8.5" x 11" original 5 sheets (10 pages) copy 5sets

→

(4) Continuous copy

Max. multiple number 999 pages

(5) Copy Ratio

Copy ratio AB series :

25%, 50%, 70%, 81%, 86%, 100%, 115%, 122%, 141%, 200%, 400% Inch series : 25%, 50%, 64%, 77%, 100%, 121%, 129%, 200%, 400%

Zoom 25 - 400%

25 - 200% (Copy from DSPF)

Independent

scaling

(6) Exposure/Copy Quality Process

Exposure mode Binary: Text(auto/manual), Text/photo, Photo

Manual steps 9 steps Toner save mode Yes (Except for U.K.), Default: OFF

256 levels: Not provided

(7) Copy Function

Function APS Yes

AMS Yes XY zoom Yes Paper type select Yes (By type setting) Auto tray switching Yes Rotation copy Yes Electronic sort Yes Rotation sort No Reserved copy Yes Prior tray setting No Recall/register of program Yes Document filing Yes

(The AR-P21 or the AR-

NC8 is required.) Proof copy No Preheat function Yes (To be set up by the

Auto power shut-off function

Account control Yes 500 accounts Process control Yes Tandem copy Yes (via network)

Tab copy No Book copy Yes Irregular original size input Yes Irregular paper size input Yes

key operator program)

Yes (To be set up by the

key operator program)

(The AR-P20/P21 or the

AR-NC7/NC8 is required.)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 7

Page 17

Special function

Margin shift Yes Edge erase/Center erase Yes Dual page copying Yes Covers/Inserts Yes Transparency insert Yes Centering No Multi shot (Nin1) Yes (2 in 1 / 4 in 1)

Card shot Yes Pamphlet copy Yes (Centering: Yes) 2-sided copy orientation

change Job build Yes (max.10000 sheets) Negative image Yes Shading No Mirror image Yes Multi-page enlargement No Repeat No Date stamp Yes Stamp Yes Character stamp Yes

Page stamp Yes Yes: Standard Function No: Not provided

(Centering: Yes)

Yes

3. B/W Scanner Module (DSPF)

(1) Form

Scanner (Document glass) / DSPF standard Operation panel integral type (common hardware for all the destinations)

(2) Resolution / Gradation

Reading resolution (dpi)

Magnification 25 - 99 100 101 - 200 201 - 400 – OC 600x600 600x600 600x600 600x600 – OC (High speed): Text/Auto OC (High speed): Others DSPF/SPF (standard) DSPF/SPF (high quality)

Input and transmitting resolution (dpi)

FAX transmit mode and scanner/fax multicasting mode Selection

mode Input resolution: OC Input resolution: DSPF Transmitting resolution Internet-FAX Transmitting resolution Scanner mode Selection mode Input resolution: OC Input resolution: DSPF Transmitting resolution

Reading level

256 tones

Exposure lamp

Electrodeless xenon lamp

Output level

Binary

600x600 600x600 600x600 600x600 –

600x600 600x300 600x600 600x600 –

600x300 600x300 600x600 - –

600x600 600x600 600x600 - –

Standard Fine Super fine Ultra fine 600dpi

600 x391.2 600x391.2 600x391.2 600x391.2 –

600x300 600x300 600x300 600x300 –

203.2x97.8 203.2x195.6 203.2x391 406.4x391 –

200x100 200x200 200x400 400x400 600x600

Standard Fine Super fine Ultra fine –

600x391.2 600x391.2 600x391.2 600x600 –

600x300 600x300 600x300 600x300 –

200x200 300x300 400x400 600x600 –

(3) Document Glass

Reading area 297 x 431.8 (mm)

Original alignment

Original size detection

Sizes to be detected

11.7" x 17" Left edge / Rear corner alignment

Provided (Standard size only)

Automatic (one detection unit to be used with software modification by destination)

Inch-1 11" x 17", 8.5" x 14",

Inch-2 11" x 17", 8.5" x 13",

AB-1 A3, B4, A4, A4R, B5, B5R, A5 AB-2 A3, A4, A4R, A5, B5, B5R,

AB-3 8K, A4, A4R, A5, B4, 16K,

Copy mode

8.5" x 11", 8.5" x 11"R,

5.5" x 8.5"

8.5" x 11", 8.5" x 11"R,

5.5" x 8.5"

216 x 330 mm

16KR

sending

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 8

Page 18

OR guide display

Rear left side (Print display)

Left side OR guide (Print display)

Interior side OR guide (Print display)

Interior side OR guide

The position available to attach the staple position guide label when the optional finisher (desktop console type) is equipped.

Original reference position " "

(From the Interior side) 5-1/2, A5R, B5R, A4R/A5,

8.5", B4R/B5, 11", A3R/A4 (From the left side)

5-1/2, A5, B5, A4/A5R, 8-1/2, B5R, 11", A4R, 13", 14", B4R, A3R, 17" Book marks are at A4 and 8-1/2 positions.

(4) DSPF/SPF

Type DSPF One-scan-dual-side scanning

method DSPF with OC integrated

Scan speed Standard mode 45 opm

High quality mode 22.5 opm

Original alignment

Original size A3, B4, A4, A4R, B5, B5R, A5, A5R

Original paper weight Original stack capacity

Not transportable original type

Original size detection

Sizes to be detected

Center alignment

11"x17", 8.5"x14", 8.5"x13", 8.5"x11", 8.5"x11"R,

5.5"x8.5", 5.5"x8.5"R, 8K, 16K, 16KR (Long size original up to 800mm in FAX, e-mail and iFAX mode)

50~128g/m², 15~34lbs

Max. 50 sheets (Max. 30 sheets for A3, B4,11" x 17",8.5" x 14") (Max. 15 sheets for A3, B4, 11" x 17", 8.5" x 14" over 105g/m²) or, Total thickness less than Max. 6.5mm (at 50 to 80g/m², 15 to 21lbs) Max. 5.0mm (at 80 to 128g/m², 21 to 34lbs) Transparency film, secondary original paper, tracing paper, carbon paper, thermal paper, original with crumple/crimp/rip, original with attachment/clipping, original with many punch holes (with 2 or 3 holes acceptable), original preprinted with ink-ribbon, Documents with considerable curl. Provided

Automatic (one detection unit to be used with software modification by destination)

Inch-1 11" x 17", 8.5" x 14",

8.5" x 11", 8.5" x 11"R,

5.5" x 8.5", A4, A3

Inch-2 11" x 17", 8.5" x 13",

8.5" x 11", 8.5" x 11"R,

5.5" x 8.5", A4, A3

AB-1 A3, B4, A4, A4R, B5, B5R,

A5, A3, 8.5" x 11", 11" x 17" 216 x 330 mm

AB-2 A3, B4, A4, A4R, B5, B5R,

A5, 8.5" x 11", 11" x 17", 216 x 330 mm

AB-3 8K, A4, A4R, B4, 16K, 16KR,

8.5" x 11", 216 x 330 mm

Original tray guide display

Center of the tray (inscribed symbol)

Original Guide (inscribed symbol)

The position available to attach the staple position guide label when the optional finisher (desktop console type) is equipped.

Original reference position " " Original face-down placement indication " "

(From Center) B5R, A4R/A5, 8.5", B4R/B5, 11", A3R/A4

(5) Power Source

Supplied from the main unit

(6) Dimensions

External dimensions (WxDxH) Occupied space dimensions (WxD) Weight DSPF: Approx. 46.3 lbs (21.0 kg)

32.4" x 23.9" x 7.48" (824 x 606 x 190 mm)

37.2" x 24.4" (945 x 619 mm) (When the tray is extended)

(7) Display device at scanner part

Type Dot map LCD, touch panel Display dot number 640 x 240 dots (dot pitch 0.24x0.24 mm) LCD operating dimension LCD back-light Fluorescent tube method LCD brightness adjustment

153.5 x 57.5 mm

Provided

(8) Key

Mode selection area

Basic input area

* For printer

Job status key Document filing key (* online display LED/data in-memory display LED) Image send key (busy display LED/data in-memory display LED) Copy mode key User definition key Start key CA key 10-key Clear key ∗ key #/P key

(9) Touch sense method

Resistive film method

(10) Used character in the LCD

Dot 8 x 16 , 16 x 16 dots Bold display O

4. Rack for Scanner

(1) Dimensions

Strength 60 kg Weight Approx. 16.3 (7.4 kg)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 9

Page 19

[4] CONSUMABLE PARTS

3 Drum Drum x 1 200k AR-455DR-C

x 10 350K

(35K x 10)

x 10 1,000K

(100K x 10)

x 10 350k

(35k x 10)

x 10 1,000k

(100K x 10)

x 10 350K

(35K x 10)

x 10 1,000K

(100K x 10)

x 10 350K

(35K x 10)

x 10 1,000k

(100K x 10)

x 10 350K

(35K x 10)

x 10 1,000K

(100K x 10)

x 1 35k AR-456ST-C *Life : A4 size at Area Coverage

x 1 100k AR-455SD-C

AR-455LT *Life: A4 size at Area Coverage

AR-455LD

AR-455ET *Life : A4 size at Area Coverage

AR-455LD

AR-455CT *Life: A4 size at Area Coverage

AR-455CD

AR-455ET *Life : A4 size at Area Coverage

AR-455CD

AR-455CT-C *Life : A4 size at Area Coverage

AR-455CD-C

AR-M351U/M451U, AR-M355U/M455U CONSUMABLE PARTS 4 - 1

Page 20

2. Maintenance parts list

A. Europe/Australia/New Zealand/Taiwan

No. Item Content Life Model name Remarks

1 200K PM kit Cleaner blade x 1 200K AR-451KA *1: Screen grid, charging plate, MC

Drum separation pawl x 4 MC unit *1 x 1 Toner receiving seal x 1 Side malt F x 1 Side malt R x 1 Transfer roller x 1 Discharger plate x 1 Paper dust removing unit x 1 DV blade x 1 DV side seal F x 1 DV side seal R x 1 Upper heat roller x 1 Fusing separation pawl (Upper) x 4 Lower heat roller x 1 Fusing separation pawl (Lower) x 2 Cleaning roller x 1 Bearing x 2

2 Staple cartridge Staple cartridge x 3 3000 times x 3 AR-SC1 Cartridge for AR-FN4

3 Staple cartridge Staple cartridge x 3 5000 times x 3 AR-SC2 Common with cartridge for AR-FN7

Note: The other maintenance parts which are not listed above are registered as service parts.

B. Agency/Asia/Middle East/Africa/Latin America

No. Item Content Life Model name Remarks

1 200K PM kit Cleaner blade x 1 200K AR-451KA *1: Screen grid, charging plate, MC

2 Staple cartridge Staple cartridge x 3 3000 times x 3 AR-SC1 Cartridge for AR-FN4

3 Staple cartridge Staple cartridge x 3 5000 times x 3 AR-SC2 Common with cartridge for AR-FN7

Note: The other maintenance parts which are not listed above are registered as service parts.

cleaner unit are included.

Common with cartridge for AR-FN6

cleaner unit are included.

Common with cartridge for AR-FN6

AR-M351U/M451U, AR-M355U/M455U CONSUMABLE PARTS 4 - 2

Page 21

C. Hong Kong

No. Item Content Life Model name Remarks

1 200K PM kit Cleaner blade x 1 200K AR-451KA *1: Screen grid, charging plate, MC

2 Staple cartridge Staple cartridge x 3 3000 times x 3 AR-SC1 Cartridge for AR-FN4

3 Staple cartridge Staple cartridge x 3 5000 times x 3 AR-SC2 Common with cartridge for AR-FN7

Note: The other maintenance parts which are not listed above are registered as service parts.

cleaner unit are included.

Common with cartridge for AR-FN6

D. China

No. Item Content Life Model name Remarks

1 200K PM kit Cleaner blade x 1 200K AR-451KA *1: Screen grid, charging plate, MC

2 Staple cartridge Staple cartridge x 3 3000 times x 3 AR-SC1 Cartridge for AR-FN4

3 Staple cartridge Staple cartridge x 3 5000 times x 3 AR-SC2 Common with cartridge for AR-FN7

Note: The other maintenance parts which are not listed above are registered as service parts.

cleaner unit are included.

Common with cartridge for AR-FN6

AR-M351U/M451U, AR-M355U/M455U CONSUMABLE PARTS 4 - 3

Page 22

2. Production number identification

A. Drum cartridge

The lot number, printed on the front side flange, is composed of 10 digits, each digit showing the following content:

C. Developer cartridge

The lot number is of 8 digit, and each digit indicates as follows. The lot number shall be printed on the bag.

12345678

12345678910

1 Number

For this model, this digit is 2.

2 Alphabet

Indicates the model conformity code. T for this model.

3 Number

Indicates the end digit of the production year.

4 Number or X, Y, Z

Indicates the production month. X stands for October, Y November, and Z December.

5/6 Number

Indicates the production day on the month.

7 Number or X, Y, Z

Indicates the month of packing. X stands for October, Y November, and Z December.

8/9 Number

Indicates the day of the month of packing.

10 Alphabet

Indicates the production factory. "A" for Nara Plant.

B. Toner cartridge

The lot number is of 7 digits, and each digit indicates as follows. The lot number shall be printed in the position shown in the figure.

12 34567

1 Version number (A - sequentially revised) 2 Numeral figure

Indicates the end digit of the production year.

3 Alphabet

Indicates the production factory. (B for SOCC) 4 Destination code 5/6 Numeral figures

Indicates the production day. 7 Numeral figure or X, Y, Z

Indicates the production month.

X stands for October, Y November, and Z December.

1 Alphabet

Indicates the production factory.

2 Number

Indicates the production year.

3/4 Number

Indicates the production month.

5/6 Number

Indicates the production day. 7 Hyphen 8 Number

Indicates the production lot.

3. Environmental conditions

A. Operating conditions

85%

Humidity (%)

10 35

Temperature

B. Storage conditions

(Without dew condensation)

60%

Aluminum bag

Serial No. attachment

Humidity (%)

-10 40

Serial No. attachment

Heat seal

AR-M351U/M451U, AR-M355U/M455U CONSUMABLE PARTS 4 - 4

Temperature

(Without dew condensation)

Page 23

[5] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Exterior

12345678910

No. Name Function Note

1 Bypass tray This tray can also be used for special papers including

2 Exit tray The tray is extendable to support large size paper. Extend the tray

3 Automatic document feeder This automatically feeds and scans multiple sheet originals. Both

4 Duplex module Module for two-sided printing Option

5 Upper paper output area Finished sheets are deposited here. – 6 Upper exit tray extension Provides support for large size paper. Option

7 Operation panel –– 8 Front cover Open to add toner. –

9 Power switch Press to turn power on and off. – 10 Paper tray 1 –– 11 Stand/3 x 500 sheet paper drawer This paper feed unit contains an upper multi-purpose drawer and

12 Stand/MPD & 2000 sheet paper drawer This paper feed unit contains an upper multi-purpose drawer and a

13 Multi purpose drawer Up to 500 sheets of 20 lbs. (80 g/m

transparency film.

when 11" x 17", 8-1/2" x 14", 8-1/2" x 13", A3 or B4 paper is being used.

sides of two-sided originals can be scanned at once.

two lower drawers each of which can hold a maximum of 500 sheets of 20 lbs. (80 g/m

lower drawer which can hold a maximum of 2000 sheets of 20 lbs.

(80 g/m

special papers such as envelopes (standard sizes only) and postcards can be set.

) paper.

) paper can be loaded. Also

Option (AR-DU4)

Option (AR-DU4/AR-TE3)

–

(AR-DU3/DU4)

(AR-AR-TE4)

Option (AR-D27)

Option (AR-D28)

Option (AR-MU2)

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 1

Page 24

2. Interior

No. Name Function

1 Duplex module side cover Open when a misfeed has occurred in the duplex module.

2 Side cover latch Push up to open the side cover when a misfeed has occurred in the main unit.

3 Fusing unit Lift up to open the side cover when a misfeed has occurred in the main unit.

CAUTION: The fusing unit is hot. Take care in removing misfed paper. 4 Toner cartridge (drum/toner cartridge) The toner cartridge must be replaced when indicated on the operation panel. 5 Photoconductive drum Images are formed on the photoconductive drum.

NOTE: Do not touch or damage the photoconductive drum. 6 Cartridge lock lever When replacing the drum, toner or developer cartridge, turn down this lever and pull it out.

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 2

Page 25

3. Operation panel

2 3

When the printer expansion kit (with HDD) print server card (with HDD) is installed.

610117

No. Name Function

1 Touch panel The machine status, messages and touch keys are displayed on the panel. The document filing,

copy, network scanner*

, and fax*3 functions are used by switching to the screen for the desired

function.

2 Mode select keys and indicators Use to change modes and the corresponding display on the touch panel.

[PRINT] key/[DOCUMENT FILING] key*

Press to select the print/document filing*1 mode.

[IMAGE SEND] key/LINE indicator/DATA indicator

Press to change the display to network scanner mode*

or fax mode*3.

[COPY] key

Press to select the copy mode.

3 PRINT mode indicators READY indicator

Print data can be received when this indicator is lit.

DATA indicator

Lights up or blinks when print data is being received. Also lights up or blinks when printing is

being performed. 4 [JOB STATUS] key Press to display the current job status. 5 [CUSTOM SETTINGS] key This is used to store, edit, and delete user names and folder names for the document filing

function*

, and to configure the key operator programs and printer configuration settings. 6 Numeric keys Use to enter numeric values for various settings. 7 [ ] key ([ACC.#-C] key) This key is used in copy mode, document filing mode*

8 [#/P] key This is used as a program key when using the copy function, and to dial when using the fax

9 [C] key (Clear key) This key is used in copy mode, document filing mode*

mode*

function*

mode*

10 [START] key Use this key to start copying in copy mode, scan a document in network scanner mode*

scan a document for transmission in fax mode*

11 [CA] key (Clear all key) This key is used in copy mode, document filing mode*

. Use the key to cancel settings and perform an operation from the initial machine state.

mode*

, network scanner mode*2, and fax

*1: When the printer expansion kit (with HDD)/print server card (with HDD) is installed. *2: When the network scanner option is installed. *3: When the fax option is installed.

, or

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 3

Page 26

4. Job status screen (common to print, copy, fax, network scan and Internet fax)

This screen is displayed when the [JOB STATUS] key on the operation panel is pressed. This screen can be used to display the "JOB QUEUE" (showing stored jobs and the current job) or the "COMPLETE" job list (showing fin-

ished jobs). This screen can be used to check jobs, interrupt a job in progress to perform another job, and cancel a job.

"JOB QUEUE" screen

"COMPLETE" job screen

JOB QUEUE

COPY

Suzuki

066211221

PRINT JOB

SETS / PROGRESS

020 / 001

020 / 000

002 / 000

E-MAIL/FTP

STATUS

COPYING

PAPER EMPTY

WAITING

FAX JOB

1/1

JOB QUEUE

COMPLETE

DETAIL

PRIORITY

STOP/DELETE

INTERNET-FAX

JOB QUEUE

COMPLETE

DETAIL

CALL

INTERNET-FAX

34567891011

No. Name Function

1 Job list The displayed jobs in the job list are themselves operation keys. To cancel printing or to give a job the highest print

priority, touch the relevant job key to select the job and execute the desired operation using the keys described in 8 and 9. This shows the current job and the jobs waiting to be run. The icons to the left of the jobs in the queue show the job mode. The document filing reprint job icon is highlighted. Note that the icon does not become highlighted during retransmission of a fax/image transmission job.

Print mode Copy mode

E-MAIL/FTP mode

Scan to e-mail job Scan to FTP job Scan to Sharpdesk job

Fax mode

Fax send job Fax reception job PC-Fax send job

Internet Fax mode

i-Fax send job i-Fax reception job PC-Internet Fax send job

*1: "PAPER EMPTY" in the job status display When a job status display indicates "PAPER EMPTY", the specified paper size for the job is not loaded in any of the trays. In this case, the job will be suspended until the required paper is loaded. Other stored jobs will be printed (if possible) until the required paper is loaded. (Other jobs will not be printed if the paper runs out during printing.) If you need to change the paper size because the specified paper size is not available, touch the current job key to select it and then touch the [DETAIL] key described in 10.

2 Mode select key This switches the job list display between "JOB QUEUE" and "COMPLETE".

"JOB QUEUE": Shows stored jobs and the job in progress. "COMPLETE": Shows finished jobs. Files saved using the "FILE" and "QUICK FILE" functions and finished broadcast transmission jobs appear as keys in the finished job screen. The "FILE" or "QUICK FILE" job keys in the finished job screen can be touched, followed by the [CALL] key, to call up a finished job and print or transmit it. A finished broadcast transmission job key can be touched followed by the

[DETAIL] key to check the result of the transmission. 3 [PRINT JOB] key This displays the print job list of print mode (copying, printing, fax reception, Internet fax reception, and self printing). 4 [E-MAIL/FTP] key This displays the transmission status and finished jobs of scan mode (Scan to e-mail, Scan to FTP, and Scan to

5 [FAX JOB] key This displays the transmission/reception status and finished jobs of fax mode (fax and PC-Fax) when the fax option

6 Display switching keys Use to switch the page of the displayed job list. 7 [INTERNET-FAX] key This displays the transmission/reception status and finished jobs of Internet fax mode and PC Internet fax mode

8 [STOP/DELETE] key Use to cancel or delete the current job or delete the stored job. Note that printing of received faxes and received

9 [PRIORITY] key Touch this key after selecting a stored job in this [JOB QUEUE] list to print the job ahead of the other jobs.

10 [DETAIL] key This shows detailed information on the selected job. Files saved using the "FILE" and "QUICK FILE" functions and

11 [CALL] key When this key is touched after selecting a job in the COMPLETE job status screen (a job stored using the FILE or

SharpDesk) when the network scanner option is installed.

is installed.

when the network scanner option is installed.

Internet faxes cannot be canceled or deleted.

Note that a job in progress cannot be interrupted if it is an interrupt copy job or if it is a list print job.

finished broadcast transmission jobs appear as keys in the finished job screen. A Quick File in the finished job

screen or the [Filing] key can be touched, followed by the [CALL] key, to call up a finished job and print or transmit it.

A finished broadcast transmission job key can be touched followed by the [DETAIL] key to check the result of the

transmission.

QUICK FILE keys of the document filing function), the "JOB SETTINGS" menu screen appears to let you resend or

reprint the finished job.

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 4

Page 27

5. Cross sectional view

A. Scanner unit

17 SPOD

3 SPPD

4 SPED

1213

910

No. Name No. Name

1 CIS unit 10 Copy lamp base unit 2 Original resist roller 11 No. 1 mirror 3 Original resist front sensor (SPPD) 12 Copy lamp (Xenon) 4 Original set sensor (SPED) 13 Mirror base unit 5 Original take-up sensor 14 No. 3 mirror 6 Original length sensor 1 (SPLS1) 15 No. 2 mirror 7 Original length sensor 2 (SPLS2) 16 Original exit roller 8 CCD/lens unit 17 Original exit sensor 9 Original feed roller

B. Engine

POD1 POD2 POD3

17 26

PPD1

22 2321

8 6 9

13 PED TUD

No. Name No. Name

1 OPC drum 14 Machine tray (Paper tray1) rotating plate 2 Main charger 15 Upper heat roller 3 Cleaning blade 16 Pressure roller 4 LSU 17 Heater lamp 5 Developing unit 18 Thermistor (RTH1 / RTH2) 6 Magnet roller 19 Thermostat 7 Toner hopper 20 Fusing back roller 8 Transfer roller 21 Reverse gate

9 Resist roller 22 Paper exit roller 10 Paper transport roller 23 Full detection lever 11 Machine tray (Paper tray1) paper feed roller 24 Printer control PWB 12 Machine tray (Paper tray1) separation roller 25 Power supply unit 13 Machine tray (Paper tray1) take-up roller 26 Cleaning roller

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 5

Page 28

6. Switch, Sensor

A. Scanner unit

Code Name Active condition 1 SPPD SPF original resist front sensor 2 SCOV SPF paper feed cover sensor 3 SPED SPF original set sensor 4 OCSW OC open/close sensor 5 ORS-LED Original size sensor PWB (Light emitting side) 6 SPLS1 SPF original length sensor 1 7 SPLS2 SPF original length sensor 8 SPFVR SPF original width detection volume PWB 9 ORS-PD Original size sensor PWB (Light receiving side)

10 SOCD SPF open/close sensor 11 SPOD SPF original exit sensor 12 MHPS Mirror home position sensor

B. Engine

5.POD3

4.POD2

2.DSW-L

3.POD1

7.TCS

8.LUD

6.PPD1

1.DSW-F

9.PED

10.MAIN SW

Code Function/Operation Active condition 1 DSW-F Front door open/close detection H= Door open 2 DSW-L Left door open/close detection H=Door open 3 POD1 Paper exit detection L= Paper detection 4 POD2 Paper exit detection L= Paper detection 5 POD3 Paper exit detection Full L= Paper detection 6 PPD1 Paper transport detection L= Paper detection 7 TCS Toner concentration sensor 8 LUD Paper feed cassette upper limit detection H= Upper limit detection 9 PED Paper feed cassette paper empty detection L= Paper empty detection

10 MAIN SW Power switch

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 6

Page 29

7. PWB

A. Scanner unit

No. Name Function/Operation

1 SPF control PWB SPF control 2 Original size detection PWB (Light emitting side) Original size detection when using the table glass 3 CCD PWB (in lens unit) (The lens unit cannot be disassembled.) Image scan (Table glass/SPF surface) 4 SPF original width detection volume PWB SPF original width detection 5 MFP operation PWB Panel operation control 6 Scanner control PWB Scanner unit control 7 LVDS PWB LCD signal relay 8 Original size sensor (Light receiving side) Original size detection when using the table glass 9 CIS unit (in CIS unit) (The CIS unit cannot be disassembled.) Image scan (SPF back surface)

10 CIS interface PWB (in CIS unit) (The CIS unit cannot be disassembled.) CIS signal AD conversion process 11 Scanner interface PWB Scanner unit and connection of scanner control PWB 12 CIS control PWB CIS unit control and image process 13 CL inverter PWB Inverter for copy lamp

B. Engine

No. Name Function/Operation

1 PRT controller Image process, image data communication control 2 PCU PWB Overall control of the machine and options 3 Power supply unit DC power supply 4 LD PWB (Inside LSU) Laser ON control (Inside LSU: LSU cannot be disassembled.) 5 Mother PWB Signal interface between PCU and the controller 6 Reactor PWB (200V only) / Filter PWB (Taiwan only) Noise filter 7 BD PWB Laser control (Inside LSU: LSU cannot be disassembled.) 8 High voltage resistor PWB High voltage load adjustment 9 Cassette detection PWB Paper cassette control

10 Drawer PWB Fan control 11 High voltage PWB High voltage power supply 12 Fuse PWB Protection of the machine when an abnormal power is supplied. 13 Relay PWB HDD back up

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 7

Page 30

8. Motor, Clutch, Solenoid

A. Scanner unit

No. Name Function/Operation

1 SPFM SPF motor Original transport in SPF scan 2 SRRC SPF original resist clutch SPF original scan timing adjustment 3 SPFC SPF original feed clutch SPF original feed roller drive 4 SDSS SPF original stopper solenoid SPF original stopper gate drive 5 MIRM Mirror motor Mirror base copy lamp base drive 6 SPFS SPF original feed solenoid SPF original feed unit drive 7 STMPS Stamp solenoid Finish stamp drive (Option AR-SU1 required)

B. Engine

13.PSPS 16.CNTFAN

10.CFM2

3.POM

6.VFM2

17.PM

1.DM

15.HDDFAN

14.RRC

12.TRC

2.MM

11.CPFC

5.LUM

8.CFM1

4.TM

7.VFM1

Code Function/Operation Type 1 DM Drum motor Brushless motor 2 MM Main motor Brushless motor 3 POM Paper exit motor Stepping motor 4 TM Toner motor Synchronous motor 5 LUM Lift-up motor Synchronous motor 6 VFM2 Heat exhaust fan motor Fan motor 7 VFM1 Cooling fan motor Fan motor 8 CFM1 Suction fan motor Fan motor

10 CFM2 Ozone exhaust fan motor Fan motor 11 CPFC Paper cassette paper feed clutch 12 TRC Paper transport clutch 13 PSPS Separation solenoid 14 RRC Resist roller clutch 15 HDDFAN Cooling fan motor (for HDD) Fan motor 16 CNTFAN Cooling fan motor (for controller) Fan motor 17 PM Polygon motor Polygon motor

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 8

Page 31

[6] UNPACKING AND INSTALLATION

1. Installing procedure flowchart

There are many combinations between this machine and option units. For installing option units, observe the following procedures for efficiency.

To install the devices effciently, follow the procedure below. Some peripheral devices may have been installed as standard

devices depending on the main unit model. Part of descriptions and illustrations may be different.

Scanner/document feeder device

Finishing device

Start of installation

Main unit, paper feeding device, and power supply unit.

AR-MU2 AR-D27 AR-D28

Main unit

Duplex/bypass

device installed?

Finishing device

installed?

Yes

Main unit

Install duplex/pypass device.

AR-DU3 AR-DU4

Install finishing device.

AR-MS1 AR-FN6 AR-FN7 AR-PN1A / B / C / D

Duplex/bypass device

Finishing device

Paper feeding deviceDuplex device

Main unit

Paper feeding device

Finishing device

* To install the AR-MU2, the optional exclusive-use desk is required.

Install controller board, facsimile unit or other electric

Controller board,

facsimile unit or other

electric devices

installed?

[Electrical setting/adjustment]

1) Installation of driver software, setting, and operation check

Main unit/AR-EF3/AR-FX12/AR-P20/AR-P21 AR-NC7/AR-NC8/AR-PK6/AR-NS3

Paper guide position adjustment/off center adjustment

AR-MU2/AR-D27/AR-D28/ AR-DU3/AR-DU4

End

Yes

devices.

AR-FX12/AR-MM9 AR-P20 AR-P21 AR-NC7 AR-NC8 AR-PK6 AR-NS3 Extended memory

When installing a paper feeding device or a duplex/bypass device, be sure to reattach the rear cabinet, the AC inlet cover, and the harness cover of the main unit at the end of installation as needed. When installing a controller board, a facsimile unit, and other electric devices, be sure to install them at a time. Only off center adjustment is needed for AR-DU3.

∗ For installation of an option unit, refer to the Service Manual of the option unit.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 1

Page 32

2. Note for installation place

Improper installation may damage this product. Please note the following during initial installation and whenever the machine is moved.

1) The machine should be installed near an accessible power outlet for easy connection.

2) Be sure to connect the power cord only to a power outlet that meets the specified voltage and current requirements. Also make certain the outlet is properly grounded.

• For the power supply requirements, see the name plate of

the main unit.

3) Do not install your machine 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.

4) Be sure to allow the required space around the machine for servicing and proper ventilation.

11-13/16" (30cm)

31-1/2" (80cm)

23-5/8" (60cm)

3. Unpacking procedure

Check the following items are included in the package. (North America)

AR-M355U/M455U

Operating Manual (Copier/Key Operation)

– Install Guide (PCL, PC) – CD-ROM (Printer) – CD-ROM (NIC)

Maintenance card/Maintenance case Key Sheet (PRINT display)

(Europe)

AR-M351U/M451U

Operating Manual (Copier/Key Operation) *1 CD-ROM (Printer) *2

– CD-ROM (NIC) Maintenance card/Maintenance case Installation Report/Other Key Sheet (PRINT display) *1 Key Sheet (PRINT

Key Sheet (DOCUMENT FILING display) Key Sheet

*1: For the Europe model, this manual is included in the operation

manual kit for language support. The standard language for the key sheet is English. To support local language, attach the key sheet.

*2: For the Europe model, two driver CD's are provided for lan-

guage support.

AR-M355U/M455U

+ AR-P20

AR-M351U/M451U

+ AR-NC7

AR-M355U/M455U

+ AR-P21

AR-M351U/M451U

+ AR-NC8

display)

(DOCUMENT FILING display) *1

B. AR-M351U/M451U (Except for Europe)

1) Release the joint, and remove the packing case.

2) Remove the top pad, and open the electrostatic polyethylene bag.

A. AR-M355U/M455U (North America),

AR-M351U/M451U (Europe)

Check the following items are included in the package.

AR-M351U/M451U

Operating Manual (Copier/Key Operation) *1 CD-ROM (Printer) *2

– CD-ROM (NIC) Maintenance card/Maintenance case Installation Report/Other Key Sheet (PRINT display) *1 Key Sheet (PRINT

Key Sheet (DOCUMENT FILING display) Key Sheet

AR-M351U/M451U

+ AR-NC7

AR-M351U/M451U

+ AR-NC8

display)

(DOCUMENT FILING display) *1

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 2

Page 33

3) Remove the cushioning materials from the right and left of the front side.

4) Remove the locking tape from the right and left sidesof the tray.

Then, Remove the top of the carton and lower the plastic bag covering the machine while the machine is still on the carton base.

5) Remove the packing tape from the paper tray, pull out the paper tray until it stops and remove it by tilting it upward.

4. Remove the locking tape (AR-M355U/M455U (North America), AR-M351U/M451U (Europe))

6) One person must lift by the empty front tray pocket with the right hand and steady the machine with the left hand placed at the upper left of the machine.

The other person must lift with the right hand by using the lifting recess in the rear of the machine and also steady the machine with the left hand as shown in the illustration.

Front side

Rear side

5. Unpacking and installation of the desk unit

Note: In advance to installation of the machine, the paper feed

option units (AR-D27/AR-D28/AR-MU2) should have been installed.

A. AR-D28

• Start installation after checking that the DATA and COMMUNI-

CATION indicators on the operation panel are neither lit nor blinking.

Note: The center of gravity of the machine lies in the left side

when viewed from the Back of machine. When lifting the machine, be careful not to drop it.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 3

Left adjuster: 1 pc.

Front mounting plates: 2 pcs.

Left paper guides: 2 pcs. Right paper guides: 2 pcs.

Rear mounting plates: 2 pcs.

Screws (M4x6):

4 pcs.

Page 34

1) Turn off the main switch of the main unit of the printer. Turn the main switch located on the front side of the printer to the "OFF" position. Then remove the power plug from the outlet.

"OFF"

4) Connect the main unit to the stand/paper drawer. <1> Attach the rear mounting plates using a supplied screw for

each.

Rear mounting plate

2) Attach the adjusters and adjust them.

<1> Insert the left adjusters to the stand/paper drawer. <2> Turn the each adjusters to lower them until they touch the

floor.

∗ Be sure to attach the left adjuster to prevent overturning.

Caution: The lower tray cannot be pulled out unless the adjuster

is lowered to the specified position.

3) Put the main unit of the printer on the stand/paper drawer.

<1> Pull out the paper tray of the main unit until it stops and then

remove it by lifting both ends of the tray.

Screw

Rear mounting plate

Desk frame

Rear mounting plate

Screw

Caution: Insert the rear mounting plates under the desk frame. <2> Pull out the upper paper tray of the stand/paper drawer until it

stops and attach the front mounting plates using a supplied screw for each. Then, remove the lock of the paper tray and close the tray.

Front mounting plate

Screw

Front mounting plate

Screw

<2> Hold the main unit of the printer at the positions shown in the

illustration and put the main unit on the stand/paper drawer so that the front side and the left side of the main unit are aligned to those of the stand/paper drawer.

Front side

Rear side

Caution: For installation of the main unit, it must be held by two

persons and installed without haste.

<3> Reattach the paper tray of the main unit.

5) Connect the power supply I/F harness to the PCU PWB of the main unit of the printer.

<1> Remove the screw that fixes the harness cover of the main

unit of the printer and slide the harness cover up to remove it. Process the harness cover as shown in the illustration.

Screw

Cut out.

Harness cover

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 4

Page 35

<2> Connect the power supply I/F harness connector (red, 22pin)

to CN11 (red connector) of the PCU PWB of the main unit of the printer.

Connector

CN11

Connect the connector (white, 4pin) of power supply I/F harness to the I/F connector (white, 4pin) of the main unit. Remove the M4 screw shown in the illustration, insert the circle terminal of ground harness, and it fixes again.

B. AR-D27

• Start installation after checking that the DATA and COMMUNI-

CATION indicators on the operation panel are neither lit nor blinking.

<3> Reattach the power supply I/F harness cover to its original

position and fix it with the removed screw. At this time, ensure that the power supply I/F harness are arranged as shown in the illustration.

• Fix the harness securely to the wire saddle.

Screw

Power supply I/F harness

Harness cove

Wire saddle

6) Attach the paper guides to the lower tray (large capacity tray) and set the size. Refer to "Setting and adjustment" described later.

∗ If another peripheral device must be installed, carry out the fol-

lowing step at the end of the installation work.

7) Adjust the position of the paper guides of the upper paper tray of the stand/paper drawer. Refer to "Setting and adjustment" described later.

8) Carry out the off center adjustment.

Screws (M4x6):

4 pcs.

Left adjuster: 1 pc.

Front mounting plates: 2 pcs.

Rear mounting plates: 2 pcs.

1) Turn off the main switch of the main unit of the printer. Turn the main switch located on the front side of the printer to the "OFF" position. Then remove the power plug from the outlet.

"OFF"

2) Attach the adjusters and adjust them.

<1> Insert the left adjusters to the stand/paper drawer. <2> Turn the five adjusters to lower them until they touch the

floor.

∗ Be sure to attach the left adjuster to prevent overturning.

Caution: The lower tray cannot be pulled out unless the adjuster

is lowered to the specified position.

3) Put the main unit of the printer on the stand/paper drawer.

<1> Pull out the paper tray of the main unit until it stops and then

remove it by lifting both ends of the tray.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 5

Page 36

<2> Hold the main unit of the printer at the positions shown in the

illustration and put the main unit on the stand/paper drawer so that the front side and the left side of the main unit are aligned to those of the stand/paper drawer.

Front side

<3> Reattach the paper tray of the main unit.

Rear side

Caution: For installation of the main unit, it must be held by two

persons and installed without haste.

4) Connect the main unit to the stand/paper drawer. <1> Attach the rear mounting plates using a supplied screw for

each.

Rear mounting plate

Screw

Rear mounting plate

Desk frame

Screw

Mounting plate

5) Connect the power supply I/F harness to the PCU PWB of the main unit of the printer.

<1> Remove the screw that fixes the harness cover of the main

unit of the printer and slide the harness cover up to remove it. Process the harness cover as shown in the illustration.

Screw

Cut out.

Harness cover

<2> Connect the power supply I/F harness connector (red, 22pin)

to CN11 (red connector) of the PCU PWB of the main unit of the printer.

Connector

CN11

Caution: Insert the rear mounting plates under the desk frame. <2> Pull out the upper paper tray of the stand/paper drawer until it

stops and attach the front mounting plates using a supplied screw for each. Then, remove the lock of the paper tray and close the tray. Remove the locks of the middle tray and the lower tray similarly.

Front mounting plate

Screw

Front mounting plate

Screw

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 6

Page 37

<3> Reattach the harness cover to its original position and fix it

with the removed screw. At this time, ensure that the power supply I/F harness is arranged as shown in the illustration.

• Fix the harness securely to the wire saddle.

Screw

Power supply I/F harness

Harness cover

Wire saddle

6) Adjust the position of the paper guides of the upper paper tray of the stand/paper drawer. Refer to "Setting and adjustment" described later.

7) Carry out the off center adjustment.

C. AR-MU2

2) Put the main unit of the printer on the multi purpose drawer. <1> Pull out the paper tray of the main unit until it stops and then

remove it by lifting both ends of the tray.

<2> Hold the main unit of the printer at the positions shown in the

illustration and put the main unit on the multi purpose drawer so that the front side and the left side of the main unit are aligned to those of the multi purpose drawer.

Front side

Rear side

Front mounting plates:

2 pcs.

Rear mounting plates:

2 pcs.

Screws (M4x8):

4 pcs.

1) Turn off the main switch of the main unit of the printer. Turn the main switch located on the front side of the main unit to the "OFF" position. Then, remove the power plug of the main unit from the outlet.

"OFF"

Caution: For installation of the main unit, it must be held by two

persons and installed without haste.

3) Connect the main unit of the printer to the multi purpose drawer.

<1> Attach the rear mounting plates using a supplied screw for

each.

Rear mounting plate

Screw

Rear mounting plate

Tray frame

Screw

Mounting plate

Caution: Insert the mounting plate under the desk frame.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 7

Page 38

<2> Pull out the paper tray of the multi purpose drawer until it

stops and attach the front mounting plates using a supplied screw for each. Then, remove the lock of the paper tray and close the tray.

Front mounting plate

Screw

Front mounting plate

Screw

<3> Remove the filament tape that secure the the power supply I/

F harness.

5) Connect the harness to the main unit of the printer.

<1> Remove the screw that fixes the harness cover of the main

unit of the printer and then slide the harness cover up to remove it. Process the harness cover as shown in the illustration.

<3> Reattach the paper tray of the main unit of the printer.

4) Remove the multi rear cabinet. <1> Remove the two screws that secure the multi rear cabinet.

Screw

Multi rear cabinet

Screw

<2> Remove the two screws that secure the Harness protection

sheet.

Screw

Cut out.

Harness cove

<2> Connect the connector of the relay harness of the multi pur-

pose drawer to the connector of the PCU PWB of the main unit of the printer.

CN10

Connector

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 8

Page 39

<3> Connect the connector (white, 4pin) of power supply I/F har-

ness to the I/F connector (white, 4pin) of the main unit. Connect the power supply I/F harness connector (red, 22pin) to CN11 (red connector) of the PCU PWB of the main unit of the printer. Remove the M4 screw shown in the illustration, insert the circle terminal of ground harness, and it fixes again.

Connector

CN11

6. Unpacking and installation of the rack

(AR-RK2) (Except for North America/ Europe)

∗ For installation of a finisher or a mail-bin stacker, see its installa-

tion manual.

6) Attach the harness cover. Reattach the harness cover to its original position and fix it with the removed screw. At this time, ensure that the power supply I/F harness is arranged as shown in the illustration.

• Fix the harness securely to the wire saddle.

Screw

Harness cover

Wire saddle

∗ If another peripheral device must be installed, carry out the fol-

lowing step at the end of the installation work.

7) Adjust the position of the paper guides of the paper tray. Refer to "Setting and adjustment" described later.

8) Carry out the off center adjustment.

1) Attach the rack to the desk unit. ★ Be sure to identify the left and the right racks. Refer to the fig-

ure below. Insert the rack boss into the rack mounting hole (made by

removing the mold of the desk unit), and fix each rack with two fixing screws (M5 x 70).

Cam

Rack sheet

Rack with the rack sheet attached to it

Fixing screws (M5x70)

Boss

Rack with the cam attached to it

Rack mounting hole

Boss

Rack mounting hole

2) Attach the rack bottom plate.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 9

Page 40

7. Unpacking and installation of the AR-EF3 (Except for North America/ Europe)

Be sure to remove it, or it may cause a trouble.

Parts included in the scanner unit

3) Fix the scanner unit. Fix the scanner unit which is on the rack with the fixing screw

(M4 x 8), and fix it to the rack with the M4 step screw (long, short x 2).

M4 stepped screw

Screw

(M4x8

M4 stepped screw

Reference

4) Remove the fixing tape for scanner packing and remove the fixing screw.

Remove the pack fixing tape and the fixing screws which are fixing the scanner unit, and remove the packing note.

Operation manual

(1 pc.)

M4 step

screws (long)

(1 pc.)

Tray

(1 pc.)

M4 step

screws (short)

(2 pcs.)

Scanner

rack sheel

(1 pc.)

Fixing screw

(M4x8)

(1 pc.)

1) Turn off the main switch of the main unit of the printer. Turn the main switch located on the front side of the printer to

the "OFF" position. Then remove the power plug from the outlet.

"OFF"

2) Put the scanner unit on the rack. Hold the handle of the scanner unit, and put the scanner unit

on the rack from the front side of the rack as shown in the figure. Slowly slide the scanner unit until it is brought into contact with the rack and stopped.

Scanner unit fixing screw

5) Connect the cable. Connect the scanner unit connector with the printer connector,

and fix the connectors with two screws attached to the connector.

Scanner cable

Screws

Note: When inserting the connector, be careful not to break the

pins, and connect according to the guide.

6) Attach the paper exit tray. Attach the paper exit tray to the scanner unit as shown in the

figure.

Rack

Scanner unit

Paper exit tray

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 10

Page 41

8. Machine installing procedure

A. Setting related to process

1) Open the left door and the front door.

2) Remove the developer cartridge from the machine.

4) While rotating the MG roller, supply developer into the developer cartridge evenly.

Note that the MG roller must be rotated in the arrow direction as shown in the figure below.

Use of a metal scale or a screwdriver (-) facilitates the procedure.

Note: Before opening the developer seal, shake it 4 or 5 times.

5) Attach the top cover to the developer cartridge and install the cartridge to the machine.

B. Toner cartridge settings

1) Remove a new toner cartridge from the package and shake it horizontally five or six times.

3) Remove the top cover of the developer cartridge.

2) Insert a new toner cartridge. Push the cartridge in until it locks securely into place.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 11

Page 42

3) Gently remove the sealing tape from the cartridge.

2) While pressing the paper holding plate, remove the fixing pin.

4) Return the cartridge lock lever.

C. Setting related to fusing

1) Put down the right and the left levers of the fusing unit in the arrow direction.

3) Put paper in the tray, and close the paper feed tray.

9. Automatic developer adjustment

1) Attach the cabinets which were removed.

2) Close the left door. At that time, keep the front door open.

Note: The automatic developer adjustment must be performed by

entering the simulation mode with the front door open. If the power is turned on with the front door closed, warm-up is performed to supply toner to the developing unit. As a result, the reference toner density cannot be obtained.

3) Insert the power plug into the power outlet.

4) Go through the modes specified in Simulation 25-2.

5) Close the front door.

(LCD Display)

D. Paper setting

1) Pull out the first stage paper feed tray. Slowly pull out the tray until it stops.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 12

SIMULATION 25-2 AUTOMATIC DV ADJUSTMENT. PRESS START. HUMIDITY AREA: 70.0 - 72.5 TEMPERATURE AREA: 70.0 - 72.5 DEVE REFERENCE: 128

Press [START] key. Press [CUSTOM SETTINGS] key, and the

operation is stopped immediately or after 2 min.

SIMULATION 25-2 AUTOMATIC DV ADJUSTMENT. EXECUTING···. HUMIDITY AREA: 70.0 - 72.5 TEMPERATURE AREA: 70.0 - 72.5 DEVE REFERENCE: 118

6) Press the [START] key, and the automatic developer adjustment will be performed.

During execution of the automatic developer adjustment, “EXECUTING...” is displayed and the toner sensor value is indicated on the LCD. (DEVE REFERENCE)

Page 43

7) After about 2 min, the adjustment value is stored in the machine. Check that the mode was normally completed.

Normal end: Returns to the initial window (PRESS

Abnormal end: Returns to the initial window (PRESS

In case of an error end, remove the cause of the error, and execute the automatic developer adjustment again.

8) Turn off/on the power, and the machine returns to the normal mode and enters the warm-up mode.

START display).

START display), and indicates the trouble display (TROUBLE! EE-**).

10.Print test

1) After completion of warm-up (normal mode), select [CUSTOM SETTINGS]

2) Print [ALL SETUP LIST] to check and confirm the print quality.

3) Press the [CUSTOM SETTINGS] key again to return to the normal menu.

→ [Data list up] to display the menu.

11.Distortion adjustment

(Except for North America/Europe)

Note: This adjustment must be performed after installing the

machine and its peripheral devices.

It is basically no need to perform the adjustment because it has been made when shipping. If there should be a distortion as shown in the figure below, perform the adjustment according to the following procedures.

1) Use a level gauge to check to confirm that the scanner unit is installed horizontally.

Make a copy, and if any distortion is found as shown in Fig 1 or Fig. 2, loosen the scanner fixing screw (M4 x 8) and the cam A fixing screw (M3 x 12) to make an adjustment.

[Fig. 2]

First copy image

Image

Paper

Difference

• Case of Fig. 2

Shift the cam A in the direction of B by the difference of the image. For one scale (one groove), shift by 0.5mm. After shifting the cam, tighten the cam A fixing screw (M3 x 12).

Make a copy again and check to confirm that there is no distortion on the image.

After adjustment, tighten the fixing screw (M3 x 12) and the scanner fixing screw (M4 x 8).

Attach the decoration seal to the screw hole.

(DSPF scan position automatic adjustment)

1) Execute SIM 53-8 after completion of the distortion adjustment.

2) If any distortion is made after execution of the simulation, execute the MB rail position adjustment. (Refer to "3-A OC scan distortion adjustment (MB-B rail height adjustment)" in [8] ADJUSTMENTS.)

12.Attach the document scanning label

Reference

6mm

Reference

Fixing screw

(M4x8)

[Fig. 1]

First copy image

Image

Paper

Difference

• Case of Fig. 1

Shift the cam A in the direction of A by the difference of the image. For one scale (one groove), shift by 0.5mm. After shifting the cam, tighten the cam A fixing screw (M3 x 12).

Make a copy again and check to confirm that there is no distortion on the image.

15mm

13.Key sheet attachment

Attach the key sheet to the specified position on the operation panel according to the support table below.

AR-M355U/

M455U Key Sheet (PRINT display)

Key Sheet (PRINT display)

❍❍ ✕

AR-M351U/

M451U

❍❍✕

AR-M355U/

M455U + AR-P20

AR-M351U/

M451U +

AR-NC7

AR-M355U/

M455U + AR-P21

AR-M351U/

M451U +

AR-NC8

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 13

Page 44

AR-M351U/

M451U

Key Sheet (PRINT display) Key Sheet (DOCUMENT FILING display)

❍❍ ✕

✕✕ ❍

AR-M351U/

M451U +

AR-NC7

Reference

AR-M351U/

M451U +

AR-NC8

15.Using the transport handle

1) Remove the screw, and remove the handle.

2) Insert the handle into the left rack notch diagonally upward as shown in the figure.

3) Attach the screw which was removed in procedure 1) to secure the handle.

14.Adjuster installation and adjustment

1) Insert the left adjuster into the paper feed desk.

2) Turn each adjuster until it is brought into contact with the floor.

∗ Be sure to install the left adjuster in order to prevent falling down

of the machine.

Note: If the adjusters are not lowered to the specified positions,

the lower stage tray cannot be pulled out.

4) Lift the rear edge of the handle to engage the head with the rack.

5) After completion of transport, restore the handle to the original position.

AR-M351U/M451U, AR-M355U/M455U UNPACKING AND INSTALLATION 6 - 14

Page 45

[7] MAINTENANCE AND DETAILS OF EACH SECTION

• Self print of set values Use of SIM 22-6 allows to print the set values and the jam his-

tory of the machine. These values must be printed before execution of maintenance or disassembly procedures.

• When assembling, check that the flat cable and the harness connectors are securely connected.

• When connecting the flat cable, be careful not to break the pins. When installing the PWB unit and the memory module, use an

earth band to prevent against breakage by static electricity.

[Maintenance System Table]

1. Engine section

Maintenance cycle : 200K

✕ Check (Clean, replace, or adjust as necessary.) ❍ Clean ▲ Replace ∆ Adjust ✩ Lubricate ❏ Move position

Unit name Part name

Drum peripheral Drum ✕▲✕▲✕▲ ✕▲Replace at 200K or 1 year.

Developing section

Fusing section Upper heat roller ✕ ✕▲✕▲✕▲✕▲

Filters Ozone filter ▲▲▲▲▲▲▲▲ Paper feed section

Transport section Paper exit reverse section

Drive section Gears (Specified position) ✕ ✩✩✩✩✩✩✩✩

Image quality ✕ ✕✕✕✕✕✕✕✕ Other Sensors ✕✕✕✕✕✕✕✕Cleaning is performed by air

Note 1: Replacement reference:Use the counter value of each paper feed port as the replacement reference.

Paper feed roller/Separation pad/Torque limiter section (Include Desk, Multi purpose): 100K or 1 years

Cleaner blade ✕▲✕▲✕▲ ✕▲ Toner reception seal ✕▲✕▲✕▲✕▲ Side molt F ✕▲✕▲✕▲✕▲ Side molt R ✕▲✕▲✕▲✕▲ Transfer roller ✕ ✕▲✕▲✕▲✕▲ Discharge plate ✕ ✕▲✕▲✕▲✕▲ TR bearing (F/R) ✕✕✕▲✕✕✕▲ Transfer roller collar ✕✕✕▲✕✕✕▲ After-transfer star ring ✕✕✕✕✕✕✕✕ TR gear ✕ ✕▲✕▲✕▲✕▲ Drum separation pawl unit ✕▲✕▲✕▲✕▲ MC unit ✕ ❍▲❍▲❍▲❍▲Includes the screen grid, the

Paper guide ❍ ❍❍❍❍❍❍❍❍ Developer ▲▲▲▲▲▲▲▲Supplied when installing DV blade ✕▲✕▲ ✕▲✕▲ DSD collar ❍❍❍❍❍❍❍❍ DV side seal F ✕▲✕▲✕▲✕▲ DV side seal R ✕▲✕▲✕▲✕▲ Toner cartridge ––––––––

Lower heat roller ✕ ✕▲✕▲✕▲✕▲ Upper separation pawl ❍ ❍▲❍▲❍▲❍▲ Lower separation pawl ❍ ❍▲❍▲❍▲❍▲ Thermistor ✕ ✕✕✕✕✕✕✕✕Clean and remove paper dust. Upper heat roller gear ✕▲✕▲ ✕▲✕▲ Paper guides ❍ ❍❍❍❍❍❍❍❍ Gears ✩✩✩✩✩✩✩✩ CL roller ✕ ✕▲✕▲✕▲✕▲ CL roller bearing ✕ ✕▲✕▲✕▲✕▲

Pick-up roller ✕ ✕✕✕✕✕✕✕✕Note 1 Paper feed roller ✕ ✕✕✕✕✕✕✕✕Note 1 Separation roller ✕ ✕✕✕✕✕✕✕✕Note 1 Torque limiter ✕ ✕✕✕✕✕✕✕✕Note 1 Resist roller ✕ ❍❍❍❍❍❍❍❍ Transport rollers ✕ ❍❍❍❍❍❍❍❍ Transport paper guides ❍ ❍❍❍❍❍❍❍❍ Paper dust remover unit ❍ ❍▲❍▲❍▲❍▲ Optical reflection sensor ❍ ❍❍❍❍❍❍❍❍PS roller unit section

Belts ✕ ✕✕✕✕✕✕✕✕

When

100K 200K 300K 400K 500K 600K 700K 800K Remark

calling

charging plate, and the MC cleaner. ❍: Charging plate cleaning by the MC cleaner

Attached when installing./ 750g, user replacement for every 35K.

blowing.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 1

Page 46

2. Scanner / DSPF

Maintenance cycle : 200K

✕ Check (Clean, replace, or adjust as necessary.) ❍ Clean ▲ Replace ∆ Adjust ✩ Lubricate ❏ Move position

Unit name Part name

Optical section

DSPF Paper feed

Note 2: Replacement reference: Replace by using the SPF counter value as an indication.

Mirror/Lens/Reflector/Sensors ❍ ❍❍❍❍❍❍❍❍ Table glass/Dust-proof glass/OC ❍ ❍❍❍❍❍❍❍❍ White reference glass ❍ ❍❍❍❍❍❍❍❍ Rails ✩✩✩✩✩✩✩✩ Drive belt/Drive wire/Pulley ✕✕✕✕✕✕✕✕

Pick-up roller ❍ ❍❍❍❍❍❍❍❍Note 2

section

Transport section PS roller ❍ ❍❍❍❍❍❍❍❍

Paper exit section

Other Sensors ❍❍❍❍❍❍❍❍For cleaning, blow air.

Paper feed roller ❍ ❍❍❍❍❍❍❍❍Note 2 Separation mylar lower ❍ ❍❍❍❍❍❍❍❍Note 2 Separation pad ❍ ❍❍❍❍❍❍❍❍Note 2

Exposure section (Dust-proof glass)

Paper exit roller ❍ ❍❍❍❍❍❍❍❍

Paper feed section pickup roller, paper feed roller, separation pad, separation lower mylar lower: 100K or 1 year

When

100K 200K 300K 400K 500K 600K 700K 800K Remark

calling

❍ ❍❍❍❍❍❍❍❍

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 2

Page 47

3. Peripheral devices

Maintenance cycle : 50K

✕ Check (Clean, replace, or adjust as necessary.) ❍ Clean ▲ Replace ∆ Adjust ✩ Lubricate ❏ Move position

Option name Part name

Finisher Transport section Transport rollers ❍ ❍❍❍❍❍❍❍❍

De-curler roller (❍)✕❍❍❍❍❍ ❍❍❍ Transport paper guides

Drive section Gears ✕ ✩✩✩✩✩✩✩✩(Specified position)

Belts ✕ ✕✕✕✕✕✕✕✕

Other Sensors ✕ ✕✕✕✕✕✕✕✕

Discharge brush ✕ ✕✕✕✕✕✕✕✕

Staple unit Replace unit

Staple cartridge User replacement

Mail-bin stacker

Saddle finisher, punch unit

ADU + Manual feed

Transport section Transport rollers ✕ ❍❍❍❍❍❍❍❍

Transport paper guides

Drive section Gears ✕ ✩✩✩✩✩✩✩✩(Specified position)

Belts ✕ ✕✕✕✕✕✕✕✕

Other Sensors ✕ ✕✕✕✕✕✕✕✕

Discharge brush ✕ ✕✕✕✕✕✕✕✕

Transport section Transport rollers ✕ ❍❍❍❍❍❍❍❍

Transport paper guides

Drive section Gears ✕ ✩✩✩✩✩✩✩✩(Specified position)

Belts ✕ ✕✕✕✕✕✕✕✕

Other Sensors ✕ ✕✕✕✕✕✕✕✕

Discharge brush ✕ ✕✕✕✕✕✕✕✕

Staple unit Replace unit at 300K

Staple cartridge User replacement

Punch unit Replace unit at

Paper feed separation section

Transport section Transport rollers ✕ ❍❍❍❍❍❍❍❍

Drive section Gears ✕ ✩✩✩✩✩✩✩✩(Specified position)

Other Sensors ✕ ✕✕✕✕✕✕✕✕

Paper feed rollers

Transport paper guides

Belts ✕ ✕✕✕✕✕✕✕✕

When

100K 200K 300K 400K 500K 600K 700K 800K Remark

calling

✕ ❍❍❍❍❍❍❍❍

(❍)✕ (❍)✕ (❍)✕ (❍)✕ (❍)✕ (❍)✕ (❍)✕ (❍)✕ (❍)✕ Note 3

✕ ❍❍❍❍❍❍❍❍

at 200K staple.

for every 3000 pcs.

staple.

for every 5000 pcs.

1000K.

Note 3: Replacement reference: Use the counter value of each paper feed port as the replacement reference.

Paper feed section pickup roller, paper feed roller, separation pad: 100K or 1 year

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 3

Page 48

[DETAILS OF EACH SECTION]

1. Process section

A. General

Toner is attached to electrostatic latent images formed by the laser beams which were radiated to the OPC drum charged by the main charger, forming toner images.

The toner images formed on the OPC drum are transferred to paper by the transfer roller.

No. Name Operation

1 Toner cartridge Supplies toner to the developing unit, and collects waste toner. 2 Developer unit Mixes toner and carrier, and attaches toner to electrostatic latent images to form visible

images. 3 Transfer roller Transfers toner images to the OPC drum. 4 Process drum unit Forms images (electrostatic latent images, visible images) on the OPC drum. 5 Main charger unit Charges the OPC drum surface negatively and evenly.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 4

Page 49

Process Section Composition and Applying Voltage

opc27 m

Separation electrode

-1.8KV

11 10

ctc27 m

-650V (-620V)

MAX 8KV

constant current

-800V

25µA (45ppm)

(31/35ppm)

19µA MAX 5KV

200M

14 14

Paper dust cleaner

200M

-500V (-470)

Toner density sensor

Temperature/humidity sensor

Composition of process section

1 Laser beam Forms latent electrostatic images on the photoconductor drum. (Writing resolution: 600dpi)

2 Photoconductor drum Latent electrostatic images are formed on the photoconductor drum. It attracts toner to the

3 Main charger Applies a high voltage to charge the OPC drum. Of saw teeth type. 4 Screen grid Charges electric charges generated from the main charger to the OPC drum evenly. -650V, 35cpm

5 MG roller Forms a magnetic brush with developer and puts toner on the OPC drum. -500V, 35cpm

6 Developing doctor Keeps the thickness of developer and toner (magnetic brush) on the MG roller at a constant level. 7 Toner quantity sensor Detects the quantity of toner in the developing unit. A magnetic sensor of transmission type is

8 Temperature/humidity sensor The temperature and the humidity inside the machine are detected, and process control is

9 CRUM-IC Toner cartridge conditions (destination, toner motor rotating time, empty, near empty, etc.) 10 Transfer roller Applies a voltage to transfer toner on the OPC drum to paper. 11 Separation electrode The electrode to separate paper from the OPC drum by the potential difference. 12 Drum separation pawl The pawl to separate paper from the OPC drum mechanically. 13 Cleaning blade Made of silicon rubber. Removes remaining toner from the OPC drum. Always in contact with the

14 High voltage resistor PWB Prevents a high voltage from leaking through the paper guide at a high humidity. 200MΩ each. 15 Resist roller Bends paper to adjust the paper feed timing to the process section. 16 Paper dust cleaner Removes paper dust from the resist roller to reduce mixing of paper dusts into the process section.

The output from LSU can be set with the simulation. (Basically the initial setup is used.)

electrostatic images and transfers them to paper. An OPC drum of 30mm diameter is employed.

Copy, -620V only for AE.

Copy, -470V only for AE.

employed.

performed according to the detected temperature and humidity.

drum.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 5

Page 50

[OPC drum section] A. General

In this section, laser beams are radiated to the OPC drum surface which was negatively charged, making electrostatic latent images.

B. Major parts and signal functions

8FE-BT-VK-N

PSPS

DSW-L DSW-L GND1 GND1 DM\ DM-T DMCLK\ (NC)

8 7 6 5 4 3 2 1

PHNR-02-H+BU02P-TR-P-H

PSPS\ +24V1

12 2

CN5 B8B-PH-K-S

CN15 9604S-14F

DSW-F

GND2

2 3

GND2

DHVREM

MHVREM\ THV+PWM\6

GBPWM\ DHVPWM\

THV-PWM\

DVREM\ DVPWM\

11 12

THVREM\ MHV-T

THin

PCU PWB

Code

Signal

name

SRA-21T-4L

SRA-21T-3

SRA-21T-4L

SRA-21T-3

BIAS

DSW-F GND2 GND2 DHVREM MHVREM\ THV+PWM\ 6 GBPWM\ DHVPWM\ THV-PWM\ DVREM\ DVPWM\ THVREM\ MHV-T THin

PS-187

MHV

THV

DHV

PS-187

1 2 3 4 5

7 8

9 10 11 12 13 14

1-84432-4(AMP)

Name Function/Operation Type Note

DM DM OPC drum motor Drives the OPC drum and the transfer section. DC brushless motor PSPS PSPS Drum separation pawl solenoid Drives the OPC drum separation pawl Solenoid

GND2 +5VCRU CRUCLK CRUSDA PSPS\ +24V1 (NC) +24V1

CN6 9604S-08C

DSW-F DSW-F GND2 GND2 DM\ DM-T DMCLK\ (NC)

1 2 3 4 5 6 7 8

No. Name Operation

1 OPC drum Forms electrostatic latent images by laser beams. 2 Drum separation pawl Separates paper from the drum. 3 Sub blade (Cleaning seal) Prevents against toner leakage from the cleaner section. 4 Screen grid Helps to charge the OPC drum evenly with electric charges provided from the main charger. 5 Saw-teeth charger Applies a high voltage to charge the OPC drum. 6 Separation pawl oscillation shaft Moves in the front and rear frame direction to install the separation pawl. 7 Cleaning blade Cleans remaining toner on the OPC drum. 8 Waste toner transport pipe Transports toner from the cleaner unit to the waste toner box in the toner cartridge front section. 9 Cleaning unit Saw teeth charger is cleaned.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 6

Page 51

C. Operational descriptions

The OPC drum surface is negatively charged by the main charger. The laser beam images are radiated to the OPC drum surface by the laser unit to form latent electrostatic images.

1) The OPC drum surface is negatively charged by the main charger.

3) After transfer operation, remaining toner is removed by the cleaning blade.

Main corona unit

High voltage unit

Screen grid

CTL CGL

Aluminum

layer

The main charger grid is provided with the screen grid. The OPC drum is charged at a voltage virtually same as the voltage applied to the screen grid.

2) LED lights are radiated to the OPC drum surface by the laser unit to form latent electrostatic images.

OPC drum

LED lights

OPC drum

CTL

CGL layer

Aluminum

When LED lights are radiated to the OPC drum CGL, negative and positive charges are generated.

Positive charges generated in CGL are attracted to the negative charges on the OPC drum surface. On the other hand, negative charges are attracted to the positive charges in the OPC drum aluminum layer.

Therefore, positive charges and negative charges are balanced out on the OPC drum and in the aluminum layer, reducing positive and negative charges to decrease the OPC drum surface voltage.

Electric charges remain at a position where LED lights are not radiated.

As a result, latent electrostatic images are formed on the OPC drum surface.

Drum

Residual toner removed from the OPC drum surface is transported to the recycle toner collection section in the toner cartridge by the waste toner transport screw.

4) All the surface of the OPC drum is discharged by laser beams.

LED lights

CLT

CGL

layer

Aluminum

After completion of the job, laser beams are radiated onto al the surface of the OPC drum. When laser beams are radiated onto the CGL of the OPC drum, positive and negative charges are generated.

Positive charges generated in CGL are attracted to the negative charges on the OPC drum surface. On the other hand, negative charges are attracted to positive charges in the aluminum layer of the OPC drum.

Therefore, positive and negative charges are balanced out on the OPC drum surface and in the aluminum layer, reducing positive and negative charged to decrease the surface voltage of the OPC drum.

CLT CGL

layer

Aluminum

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 7

Page 52

D. Maintenance and parts replacement

(1) Maintenance list

Unit name No. Part name

Drum peripheral

1Drum ✕▲✕▲✕▲✕▲Replace at 200K or 1 year. 2DSD collar ❍❍❍❍❍❍❍❍ 3 Cleaner blade ✕▲✕▲✕▲✕▲ 4 Toner reception seal ✕▲✕▲✕▲✕▲ 5 Side molt F ✕▲✕▲✕▲✕▲Apply side seal powder. 6 Side molt R ✕▲✕▲✕▲✕▲Apply side seal powder. 7 Drum separation pawl unit ✕▲✕▲✕▲✕▲ 8 MC unit ✕ ❍▲❍▲ ❍▲❍▲Includes the screen grid, the

When

calling

2 1

100K 200K 300K 400K 500K 600K 700K 800K Remark

charging plate, and the MC cleaner. ❍: Charging plate cleaning by the MC cleaner

(2) Maintenance and parts replacement

No. Unit Parts

a Drum cartridge 1 MC unit

2Drum 3DSD collar ❍ 4 Drum separation pawl unit 5 Toner reception seal 6 Cleaner blade 7 Side molt F 8 Side molt R

b 1 Separation solenoid

b-1 a-8

a-5 a-3

a-2

× ❍

▲

× × × × ×

a-1

5 2

a. Drum cartridge

1) Release the lock, and pull out the left door.

2) Open the front door.

3) Put down the DV guide handle. Loosen the screw, and remove the drum cartridge.

a-4

a-6

a-7 a-3

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 8

Page 53

a-1. MC unit

1) Remove the drum cartridge.

2) Check to confirm that the cleaning unit is inserted fully to the bottom.

3) Remove the pawl, and remove the MC unit.

∗ For cleaning the MC unit (charging plate), reciprocate the clean-

ing unit back and forth 3 times or more.

∗ When installing, install the DSD collar R to the drum frame, then

install the drum and the DSD collar F. When installing the DSD collar, engage the DSD collar boss with the drum frame hole.

a-4. Drum separation pawl unit

1) Remove the drum cartridge.

2) Remove the screw, and remove the drum separation pawl unit.

∗ When handling the separation pawl, be careful not to break or

scratch the tip of the separation pawl and keep it away from dirt.

a-2. Drum a-3. DSD collar

1) Remove the drum cartridge.

2) Loosen the screw, and remove the drum boss mounting plate.

3) Remove the drum, and remove the DSD collar. ∗ When removing the drum, place the drum cartridge as shown in

the figure and remove the drum.

After installing the drum separation pawl unit, push the separation lever and check to confirm that the separation pawl operates normally.

a-5. Toner reception seal

1) Remove the drum cartridge.

2) Remove the drum and the DSD collar.

3) Remove the drum separation pawl unit.

4) Remove the screw, and remove the toner reception seal.

∗ When replacing the OPC drum, clear the following counters.

• Drum rotating time

• Drum counter

∗ When installing a new drum, apply starting powder.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 9

(a)

∗ When installing the toner reception seal, tighten the screw (a)

on the positioning side for the first time. Check to confirm that the process earth plate and the toner reception seal are conductive. (10Ω or less)

Page 54

a-6. Cleaner blade

1) Remove the drum cartridge.

2) Remove the drum and the DSD collar.

3) Pull it out until the cleaning unit stops.

4) Remove the screw, and remove the cleaner blade. ∗ When removing the drum blade, place the drum as shown in the

figure and remove the drum blade to prevent toner from dispersing.

∗ Do not damage the cleaner blade. Do not touch the lead edge.

∗ When attaching the side molts F/R, attach them to the attach-

ment reference as shown.

∗ After attaching the side molt F/R, push the both ends of the

blade with your fingers to check to confirm that the red moquette moves smoothly.

0.3mm

Reference

0mm

0.3mm

Reference

0mm

∗ When installing the cleaner blade, pull the cleaner shaft fully

toward you.

∗ After installing the cleaner blade, insert the cleaner shaft fully to

the bottom.

a-7. Side molt F a-8. Side molt R

1) Remove the drum cartridge.

2) Remove the drum and the DSD collar.

3) Remove the toner reception seal.

4) Remove the cleaner blade.

5) Remove the side molt F and R.

Side molt R

0.5mm

(From the blade edge)

0.1mm

Reference

Side molt F

0mm0.3mm

Reference

Put side seal powder (1g) on the moquettes F/R and spread side seal powder all over the moquettes surfaces.

Side seal powder: UKOG-0309FCZZ

∗ Do not apply powder excessively to the ambient parts. ∗ Be careful not to damage the cleaning blade and the side blade.

b-1. Separation solenoid

1) Remove the screw, and remove the rear cabinet.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 10

Page 55

2) Remove the connector and the screw, and remove the PCU PWB unit.

3) Remove the screw and the connector, and remove the separation solenoid unit.

4) Remove the E-ring and the screw, and remove the separation solenoid.

[Transfer section] A. General

In this section, toner images on the OPC drum are transferred to paper.

B. Major parts and signal functions

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 11

Page 56

8FE-BT-VK-N DSW-L DSW-L GND1 GND1 DM\ DM-T DMCLK\ (NC)

8 7 6 5 4 3 2 1

1-84432-4(AMP)

DSW-F GND2 GND2 DHVREM MHVREM\ THV+PWM\ 6 GBPWM\ DHVPWM\ THV-PWM\ DVREM\ DVPWM\ THVREM\ MHV-T THin

Code

Signal

name

SRA-21T-4L

SRA-21T-3

SRA-21T-4L

SRA-21T-3

BIAS

PS-187

MHV

THV

DHV

PS-187

Name Function/Operation Type Note

DM DM OPC drum motor Drives the OPC drum and the transfer section. DC brushless motor THV THV Transfer high voltage High voltage for transfer DHV DHV High separation voltage High voltage for separation of paper

1 2 3 4 5

7 8

9 10 11 12 13 14

CN15 9604S-14F

DSW-F

GND2

2 3

GND2 DHVREM

MHVREM\

THV+PWM\6

GBPWM\

DHVPWM\

THV-PWM\ DVREM\

10 11

DVPWM\

THVREM\ MHV-T

THin

CN6 9604S-08C

DSW-F DSW-F GND2

PCU PWB

GND2 DM\ DM-T DMCLK\ (NC)

1 2 3 4 5 6 7 8

No. Name Function

1 Transfer roller Transfers toner images from the OPC drum surface to paper. 2 Discharge plate (Separation electrode) Separates paper from the drum. 3 TR bearing (F/R) Transfer roller bearing 4 Transfer roller collar Transfer roller collar 5 After-transfer star ring Guides paper after transfer. 6 TR gear Transfer roller drive gear

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 12

Page 57

C. Operational descriptions

1) Toner image transfer Toner images formed on the drum by the developing roller are

transferred to paper by the transfer roller. Toner on the drum is negatively charged by stirring in the

developing unit. By applying a positive voltage to the transfer roller, the transfer roller and paper on the transfer roller are positively charged to transfer negatively charged toner images to paper.

Separation electrode

-1.8KV

2) Transfer roller cleaning After completion of the job, the applied voltage to the transfer

roller is switched to negative in order to attract toner from the transfer roller to the OPC drum, cleaning the drum with the cleaning blade.

Separation electrode

-1.8KV

-800V

25 A 45ppm 19 A 31/35ppm MAX 5KV

200M

Separation operation

Since paper with toner images transferred on it is positively charged, a high negative voltage is applied to the separation electrode to separate the paper from the drum.

Separation electrode

-1.8KV

-800V

25 A 45ppm 19 A 31/35ppm MAX 5KV

200M

-800V

25 A 45ppm 19 A 31/35ppm MAX 5KV

200M

The transfer cleaning voltage and the developing positive bias are applied to the OPC drum at the timing shown below so that remaining toner on the transfer roller is attracted again to the OPC drum, performing cleaning.

1) When the power is turned on:

CLEANING READY CONDITION

WARMING UP

∗ However, the cleaning voltage is not applied during warm up

after completion of SIM.

2) After completion of a print job

1sec

CLEANING

PRINTING Job

3) After printing 100 sheets (during 1 job)

1sec

PRINTING (100 Sheets) PRINTING (100 Sheets)

CLEANING

1sec

CLEANING

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 13

Page 58

D. Maintenance and parts replacement

(1) Maintenance list

Unit name No. Part name

Transfer 1 Transfer roller ✕ ✕▲✕▲✕▲✕▲

2 Discharge plate ✕ ✕▲✕▲✕▲✕▲ 3 TR bearing (F/R) ✕✕✕▲✕✕✕▲ 4 Transfer roller collar ✕✕✕▲✕✕✕▲ 5 After-transfer star ring ✕✕✕✕✕✕✕✕ 6 TR gear ✕ ✕▲✕▲✕▲✕▲

When

calling

100K 200K 300K 400K 500K 600K 700K 800K Remark

2 4 3

(2) Maintenance and parts replacement

No. Unit Parts

a Transfer roller unit 1 After-transfer star ring ✕

2 Discharge plate ✕ 3 Transfer roller ✕ 4 Transfer roller collar ✕ 5 TR bearing (F/R) ✕ 6 TR gear ✕

a-4

a-5 a-6

a-3

a. Transfer roller unit

1) Pull out the left door.

a-1

a-2 a-4

a-5

2) Remove the transfer lock pawl, and pull out the transfer roller unit.

a-1. After-transfer star ring

1) Remove the transfer roller unit.

2) Remove the transfer rear star ring.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 14

Page 59

a-2. Discharge plate

1) Remove the transfer roller unit.

2) Remove the screw, and remove the discharge plate holder and the discharge plate.

a-3. Transfer roller a-4. Transfer roller collar a-5. TR bearing (F/R) a-6. TR gear

1) Remove the transfer roller unit.

2) Remove the screw, and remove the discharge plate holder and the discharge plate.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 15

Page 60

[Developing section] A. General

In this section, toner is attached to electrostatic latent images formed by laser beams on the OPC drum, making visible images.

B. Major parts and signal functions

TM1

CN6 9604S-08C

DSW-F

GND2

DM\

DM-T

DMCLK\

(NC)

Bias

BK BK

BR GY BL BR

BR BR BR BR GY GY BR GY RD BL

CN7 173981-2

TMA

TMB

CN5 B8B-PH-K-S

GND2

+5VCRU

CRUCLK

CRUSDA

PSPS\

+24V1

(NC)

+24V1

8 CN8

B11B-PH-K-S

DVCH1

DVCH2

DVCH3

TH-DV

GND2

TCS

GND2

+24V1

+5V2 HUS-DV

PCU PWB

HUS-DV TH-DV

TCS

2 3 31

51021-0400

HUS-DV TH-DV

Code

TCS

Signal

name

(NC) +24V1 TCS GND2

+5V2 HUS-DV GND2 TH-DV

Name Function/Operation Type Note

ZHR-4

SRA-21T-3

1 2 3 4

Bias

HUS-DV HUS-DV Developing humidity sensor Developing section peripheral humidity

BR GY

BR GY RD BL BR WH

QR/P8-12S-C(01)

DVCH1

DVCH2 DVCH3

TH-DV

GND2

6 7

GND2

+24V1 +5V2

HUS-DV

DVBias

TCS

1 22 3 4 5 6 7 8

99 10 11

#187

Humidity sensor Analog detector

detection

TH-DV TH-DV Developing temperature

thermistor

Temperature detection around the developing unit

Thermistor Analog

TCS TCS Toner density sensor Toner density detection Magnetic sensor Analog detector DM DM Drum motor Drives the drum/developing section. DC brushless motor TM1 TM Toner motor Drives the toner hopper. Synchronous motor Bias Bias Developing bias High voltage for developing bias

No. Name Operation

1 Developing roller Forms magnetic brush with developer and put toner on the OPC drum. 2 DV doctor Keeps the height of the magnetic brush on the developing roller at a fixed level. 3 Mixing roller (MX roller) Mixes developer (carrier and toner) and charges toner negatively.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 16

Page 61

C. Operational descriptions

Electrostatic latent images formed on the OPC drum by the LED (writing) unit (LED image light) are converted into visible images by toner.

layer Aluminum

Drum

CGL

CTL

-500V (-470V)

Toner in the developing unit is stirred by the mixing roller. When toner is stirred, it is negatively charged by mechanical fric-

tion. The developing bias voltage (negative) is applied to the develop-

ing roller. Negatively charged toner is attracted and attached to the area on

the OPC drum where negative voltage is reduced by exposure. On the other hand, the negative voltage at an area where expo-

sure is not made is higher than the developing bias voltage, and toner is not attached.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 17

Page 62

D. Maintenance and parts replacement

(1) Maintenance list

Unit name No. Part name

Developing section

1 Developer ▲▲▲▲▲▲▲▲Supplied when installing 2 DV blade ✕▲✕▲✕▲✕▲ 3 DV side seal F ✕▲✕▲✕▲✕▲ 4 DV side seal R ✕▲✕▲✕▲✕▲ 5 Toner cartridge Attached when installing./

When

100K 200K 300K 400K 500K 600K 700K 800K Remark

calling

750g, user replacement for every 35K.

4 2

(2) Maintenance and parts replacement

No. Unit Parts

a DV cartridge 1 Developer ▲

2 DV blade ✕ 3 DV side seal F ✕ 4 DV side seal R ✕ 5 Toner density sensor 6 Temperature/humidity sensor

b 1 Toner cartridge

2 Toner motor

b-2 a-6

a-4 a-1

a. DV cartridge

1) Release the lock, and pull out the left door.

2) Open the front door.

3) Put down the DV guide handle, release the lock, and remove the DV cartridge.

a-5

b-1

a-3 a-2

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 18

Page 63

a-1. Developer

1) Remove the DV cartridge.

2) Remove the screw, and remove the DV cover.

3) Remove old developer.

∗ When attaching the DV blade, attach to the attachment refer-

ence shown in the figure below.

0mm

Reference (Step)

0.5mm 0mm

Reference

0.5mm

a-3. DV side seal F a-4. DV side seal R

1) Remove the DV cartridge.

2) Remove the DV side seal F and the DV side seal R.

∗ Use a metal scale or a minus screwdriver for easy operation.

4) Supply new developer.

a-2. DV blade

1) Remove the DV cartridge.

2) Remove the DV blade.

∗ When attaching the SV side seals F and R, attach them to the

attachment reference shown in the figure below.

0.5mm

Reference

0mm

Reference

0.5mm

0mm

Reference

0.5mm

Reference

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 19

Page 64

a-5. Toner density sensor a-6. Humidity sensor

1) Remove the DV cartridge.

2) Remove the bottom cover.

3) Remove the bottom cover.

4) Remove the screw and the connector, and remove the humidity sensor.

a-8. Toner motor

1) Remove the toner cartridge.

2) Remove the screw, and remove the rear cabinet.

2) Remove the connector and the screw, and remove the PCU PWB unit.

a-7. Toner cartridge

1) Open the left door and the front door.

2) Release the lock and remove the toner cartridge.

3) Remove the connector and the screw, and remove the toner motor unit.

4) Remove the coupling and the spring from the toner motor.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 20

Page 65

2. Fusing section

A. General

This section fused toner (which is transferred onto paper in the transfer section) onto paper by heat and pressure of the fusing roller.

B. Major parts and signal functions

09R-RWZV-K2GGP4+CZHR-05V-S

B-5

B-1

B-4

B-2

B-3

B-2

B-4

B-1

B-5

VLP-03V+VLR-03V

REACTOR PWB

CN2 B03P-VL

CN1 B2P4-VH

SRA-51T-4 SRA-51T-4

FILTER PWB

CN1 B03P-VL(RD)

TAIWAN ONLY

L2out (NC) L2in

HL1

HL2

VLP-03V+VLR-03V

HL1

HL2

HL-1N HL-2N HL-L

L2 (NC) (NC) L2R

Rth1

SMP-04V-NC+SMR-04V-N

RTH1

GND2

RTH2

GND2

200V ONLY

#187(BK)

Paper exit

Paper exit roller

CN2

B7B-PH-K-S

+24VPR (NC) HLPR HLCNT1 HLCNT2 MSW MON DCCNT/

CN5

B12P-HL-A

+24V1 +24V2 +24V3 +5V1 +5V2 +3.3V1 +3.3V1 GND2 GND2 GND2 GND2 FW

Fusing roller (Heating)

Main motor

Heater lamps (2 pcs.)

Power/ Filter PWB

Copy

AC/DC PWB

CN1 B03P-VL

HL1

HL2

CN1 B03P-VL

HL1

HL2

L2R

6 5 7,82

Fusing

Fusing roller (Pressing)

PCU PWB

CN14 B16B-PH-K-S

+24VPR

HLPR

+12V2

HLCNT1

HLCNT2

RTH1

GND2

RTH2

GND2

(NC)

MSW MON

BUP_PR

GND

CN17 B9P-VH

+24V1

+24V2

GND2

+5V2

+3.3V1

GND2

CN9 9604S-08C

DSW-F

GND2

+5V2

GND2

MM\

MM-T

Cleaning roller

Rth2

HL2

HL1

1 934

8FE-ST-VK-N DSW-L DSW-L GND1 GND1 +5V2 GND2 MM\ MM-T

HLTS

8 7 6 5 4 3 2 1

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 21

Page 66

Code

RTH1 RTH1 Fusing temperature

RTH2 RTH2 Fusing temperature

HLTS HLTS Thermostat (1) Shuts conduction to the heater lamp when the

HL1 HL1 Heater lamp (1) Heats the fusing roller (heating). HL2 HL2 Heater lamp (2) Heats the fusing roller (heating). MM MM Main motor Drives the fusing unit.

Signal

name

Name Type Function/Operation

Thermistor Detects the surface temperature of the fusing roller

sensor (1)

Thermistor Detects the surface temperature of the fusing roller

sensor (2)

(heating). (Center section)

(heating). (Edge section)

temperature rises abnormally. [For the fusing roller (heating)]

Active

condition

Analog input

Note

1 Heater lamp 1 Generates heat and transmits heat to the heat roller. The temperature is controlled by the

2 Heater lamp 2 Generates heat and transmits heat to the heat roller. The temperature is controlled by the

3 Upper heat roller Transmits heat to melt toner on paper and fuse toner by means of a pressure with the lower heat

4 Lower heat roller Fuses toner on paper by means of a pressure with the upper heat roller.

5 Fusing upper separation pawl Prevents winding of paper around the upper heat roller. 6 Fusing lower separation pawl Prevents winding of paper around the lower heat roller. 7 Thermistor (Center) Detects the surface temperature of the upper heat roller.

8 Thermistor (Side) Detects the surface temperature of the upper heat roller.

9 Thermostat When an abnormal temperature of the upper heat roller is detected, the heater lamp power is

10 Cleaning roller Cleans toner on the lower heat roller. The blast process is employed.

C. Operational descriptions

(1) Fusing unit drive

To drive the fusing unit, the drive power is transmitted from the drive motor (MM) through the connection gear to the upper heat roller gear.

The drive motor DC brushless motor is driven according to the control signal sent from the PCU.

thermistor. (Temperature control is made mainly on the center.)

thermistor. (Temperature control is made mainly on both sides.)

roller.

To improve fusing capability, the diameter is greater than the conventional ones. (ø30mm→ø40mm)

(On/off of heater lamp 1 is controlled according to the detected temperature.)

(On/off of heater lamp 2 is controlled according to the detected temperature.)

interrupted. To supply power again, press the switch on the top.

(3) Fusing operation

Toner on paper is heated and pressed to be fused by the heat roller.

MMPCU

(2) Heater lamp drive

The surface temperature of the heat roller detected by the thermistor is sent to the PCU.

When the temperature is lower than the specified level, the heater lamp lighting signal is sent from the PCU to the heater lamp drive circuit in the sub power PWB.

The power triac in the heater lamp drive circuit is turned on, and the AC power is supplied to the heater lamp, lighting the lamp and heating the heat roller.

To prepare for an abnormally high temperature of the heat roller, the thermostat is provided for safety.

When the thermostat is opened, power supply (AC line) to the heater lamp is cut off.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 22

Fusing roller (Heating)

Paper exit

HL2

HL1

---------

Fusing roller (Pressing)

Page 67

The fusing heat roller (heating) is provided with two heater lamps, which heat the fusing roller to fuse toner onto paper.

The fusing rollers (pressing) are of silicon rubber because of the following reasons and purpose.

1) Paper is separated upward. (Since the fusing roller (heating) is of higher hardness, the fusing roller (pressing) is deformed to separate paper upward.)

2) The nip quantity is increased to increase heat capacity for paper.

3) By pressing paper with the flexible roller, toner is fused without deformation.

(4) Fusing temperature control

The temperature sensor is provided at the center of the fusing roller (heating).

The roller temperature is detected by the installed temperature sensor, and the heater lamp is controlled so that the temperature is maintained at the specified level.

In addition, the fusing temperature is switched according to the kind of paper.

Fusing roller

Mode

Ready condition print mode

Pre-heat 150°C150°C

Plain paper 190°C190°C Heavy Paper 190°C190°C Postcard 190°C190°C Envelope 190°C190°C

AR-M351U/

M355U

AR-M451U/

M455U

(5) Cleaning roller

The fusing section cleaning roller of this machine is made of the blast process.

1) Remaining toner attaches to the upper heat roller.

2) Due to coating and the temperature characteristics of the upper heat roller, toner is not attached to the upper heat roller but to the lower heat roller.

3) Remaining toner on the lower heat roller is further attached to the cleaning roller due to the temperature characteristics and the difference in roughness of surfaces of the rollers.

4) Remaining toner attached to the cleaning roller is accumulated until the roller is replaced.

D. Maintenance and parts replacement

(1) Maintenance list

Unit name No. Part name

Fusing section

1 Upper heat roller ✕ ✕▲✕▲✕▲✕▲ 2 Lower heat roller ✕ ✕▲✕▲✕▲✕▲ 3 Upper separation pawl ❍ ❍▲❍▲❍▲❍▲ 4 Lower separation pawl ❍ ❍▲❍▲❍▲❍▲ 5 Thermistor ✕ ✕✕✕✕✕ ✕✕✕Clean and remove

6 Upper heat roller gear ✕▲✕▲✕▲✕▲ 7 CL roller ✕ ✕▲✕▲✕▲✕▲ 8 CL roller bearing ✕ ✕▲✕▲✕▲✕▲ 9 Paper guides ❍ ❍❍❍❍❍❍❍❍

10 Gears ✩✩✩✩✩✩✩✩

When

calling

2 8

100K 200K 300K 400K 500K 600K 700K 800K Remark

paper dust.

8 5

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 23

Page 68

(2) Maintenance and parts replacement

No. Unit Parts

a Fusing unit 1 Lower separation pawl ❍

2 Upper separation pawl ❍ 3 Thermistor ✕ 4 Lower heat roller ✕ 5 CL roller ✕ 6 CL roller bearing ✕ 7 Heater lamp 8 Upper heat roller ✕ 9 Upper heat roller gear ✕

10 Thermostat

3) Pull the fusing lever, and remove the fusing unit.

a-9 a-8

a-4 a-6

a-5

a-1

a. Fusing unit

1) Pull out the left door.

2) Remove the stopper R.

a-2

a-3 a-7 a-10

a-6 a-3

a-1. Lower separation pawl

1) Remove the fusing unit.

2) Open the fusing rear lower PG, and remove the lower separation pawl.

a-2. Upper separation pawl

1) Remove the fusing unit.

2) Remove the rear upper PG, and remove the upper separation pawl.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 24

Page 69

a-3. Thermistor

1) Remove the fusing unit.

2) Remove the screw, and remove the fusing drawer. Remove the connector.

3) Remove the screw, and remove the thermistor.

a-4. Lower heat roller

1) Remove the fusing unit.

2) Release pressure with the pressure adjustment lever.

3) Remove the screw, and open the fusing unit.

a-5. CL roller a-6. CL roller bearing

1) Remove the fusing unit.

2) Remove the lower heat roller.

3) Remove the CL roller, and remove the CL roller bearing.

a-7. Heater lamp

1) Remove the fusing unit.

2) Open the fusing unit.

3) Remove the screw, and remove the heater lamp. ∗ Be careful not to mistake the installing position of the heater

lamp.

4) Open the fusing rear lower PG.

5) Remove the lower heat roller, and remove the lower heat roller bearing.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 25

∗ When installing, loosen the screws on the front side (drawer

ON side) then the screws on the rear side (gear side) in this sequence.

∗ Check to confirm again that the screws are tighten securely. (If

any screw is loosened, a bad contact may cause heating.)

Page 70

a-8. Upper heat roller a-9. Upper heat roller gear

1) Remove the fusing unit.

2) Open the fusing unit.

3) Remove the fusing rear upper PG.

4) Remove the heater lamp.

5) Remove the upper heat roller, the roller stopper. The upper heat roller gear, and the upper heat roller bearing.

a-10. Thermostat

1) Remove the fusing unit.

2) Open the fusing unit.

3) Remove the fusing rear upper PG.

4) Remove the heater lamp.

5) Remove the upper heat roller.

6) Remove the screw, and remove the electrode plate and the thermostat.

3. Paper feed section

A. General

This section picks up paper in the cassette and feed it to the transport roller section.

The capacity of the paper feed tray is 550 sheets for 64g/m 500 sheets for 80g/m

There are three kinds of the paper feed desk: 3-stage paper feed desk (AR-D27), 2-stage paper feed desk (AR-D28), and 1-stage paper fed desk (AR-MU2). For details, refer to the AR-D27/D28/ MU2 Service Manual.

∗ When installing, check to confirm that the screws are securely

tighten again. (If any screw is loosened, a bad contact may cause heating.)

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 26

Page 71

B. Major parts and signal functions

CPFC

PHNR-02-H+BU02P-TR-P-H

2 1

8FE-ST-VK-N DSW-L DSW-L GND1 GND1 +5V2 GND2 MM\ MM-T

CPFC\ +24V1

1 2

8 7 6 5 4 3 2 1

LUM

BR RD

LUMB LUMA

PCU PWB

CN9 9604S-08C

DSW-F

GND2

+5V2

GND2

MM\

MM-T

173979-2

B24B-PHDSS-B

GND2 +24V1 PED CPFC\ +5V2 +24V1 GND2 RRC\ LUD +24V1 +5V2 TRC\ GND CSS GND2 GND2 PPD1 LUMB +5V2 LUMA CFM1\ GND2 +24V1 GND2

1 2

LUD

CN13

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

OR OR

PED

GY RD BR BR BL

CN2 173979-2

LUMB

LUMA

CSS PWB

CSS

CN1 S4B-PH-K-S

CSS GND2 LUMB LUMA

179228-3(AMP)

+5V2 LUD GND2

179228-3(AMP)

+5V2 PED GND2

PHNR-09-H+BU09P-TR-P-H

BL BR GY BL BR GY

1 4

1 2 3

+5V2

PPD1

GND2

+5V2

LUD

GND2

+5V2

PED

GND2

9 8 7

Code

CPFC CPFC Paper feed clutch Paper freed tray section roller ON/

LUM LUM Paper feed tray lift-up motor Drives the lift plate of the paper feed

PED PED Defector Paper empty detection LUD LUD Defector Paper tray upper limit detection

Signal

name

Name Function/Operation Type Note

OFF control

tray.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 27

Electromagnetic clutch

DC brush motor Selection of Rotation

mode/ Brake mode

Page 72

Name Function Remark 1 Take-up roller Picks up paper and transports it to the paper feed roller. 2 Paper feed roller Feed paper in the machine. 3 Separation roller Rotates simultaneously with the paper feed roller to prevent against overlapped feed.

4 Paper upper limit sensor Detects the top surface of paper and stops paper at the feed position. Except for BPT 5 Paper sensor Detects paper presence.

6 Lift-up motor Lifts the paper feed base up to the paper feed position (upper limit detection position). Except for BPT

C. Operational descriptions

[Paper feed operation] (1) Preliminary operation except for the manual feed

tray

1) Load paper and insert the tray, and the tray sensor will be turned on.

2) The lift-up motor rotates.

3) The upper limit sensor turns on.

(2) Paper feed operation

1) The take-up roller descends.

2) The take-up roller rotates to feed paper.

3) At the same time the paper feed roller rotates to feed paper to the transport section.

4) At that time, the separation roller rotates to prevent against overlapped feed.

For the manual feed tray, the separation pad is used instead of the roller.

(Paper empty, upper limit detection: ON / Paper presence detection: OFF)

[Paper size detection] (1) Paper width detection VR (MPT/BPT/Machine tray)

Width detection is performed by calculating the voltage (A/D conversion value) of the slide VR in linkage with the side guide plate.

Paper width and paper size

(The range is set to Standard value ± 6 [mm].)

Width detection

pattern

A A3/A4 297.0 303.0- 291.0 B WLT/LT 279.4 285.4 - 273.4 C B4/B5 257.0 263.0 - 251.0 D LG/LTR/Foolscap 215.9 221.9 - 209.9 E A4R 210.0 216.0 - 204.0 F Executive-R 184.1 190.1 - 178.1

G B5R 182.0 188.0 - 176.0

Paper size

Standard

value (mm)

Range (mm)

(2) Paper length sensor

(MPT/2nd and 3rd steps of 3-step paper feed desk)

Length detection is performed by combination of cassette size sensors 1 - 4.

Paper length and paper size

Vertical size

detection pattern

1 ON ON OFF ON B5 EXTRA 147.0 - 198.0 Postcard

2 OFF ON OFF ON A4 LT 198.0 - 237.0 DBL P/C

3 OFF ON ON ON B5R EX-R 237.0 - 274.0 COM-10

4 OFF OFF ON ON A4R LTR 274.0 - 314.0 5 ON OFF ON ON Foolscap Extra 314.0 - 347.0 6 ON OFF ON OFF B4 LGL 347.0 - 389.0 7 ON ON ON OFF A3 WLT 389.0 - 432.8 0 OFF OFF OFF OFF Tray not installed

CSS1 CSS2 CSS3 CSS4

Detection SW status

AB series

size

CSS1

CSS3

Inch series

size

CSS2

CSS4

Detection width

range

Same range

size

Monarch

C5 DL

ISO-B5

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 28

Page 73

(3) Paper detection method of each tray

1) Machine 1st tray Paper detection is performed by VR in linkage with both side

guides.

2) Multi-purpose tray Paper detection is performed by VR in linkage with both side

guides and the detector in linkage with the rear edge plate.

Paper size

B5 C 1 A4 A 2 B5R G 3 A4R E 4 Foolscap D 5 B4 B 6 A3 A 7 LT B 2 EX-R F 3 LTR D 4 LGL D 6 WLT B 7

For the other than above, the paper size is considered as "Extra."

3) 2nd and 3rd steps of 3-step paper feed tray Paper detection is performed by the detector in linkage with

the rear edge plate.

Width detection

pattern

Vertical detection

pattern

CSS1

CSS3

Paper size for automatic detection

Vertical size

detection pattern

1 ON ON OFF ON B5 EXTRA 147.0 - 198.0 2 OFF ON OFF ON A4 LT 198.0 - 237.0 3 OFF ON ON ON B5R EX-R 237.0 - 274.0 4 OFF OFF ON ON A4R LTR 274.0 - 314.0 5 ON OFF ON ON Foolscap EXTRA 314.0 - 347.0 6 ON OFF ON OFF B4 LGL 347.0 - 389.0 7 ON ON ON OFF A3 WLT 389.0 - 432.8 0 OFF OFF OFF OFF Tray not installed

CSS1 CSS2 CSS3 CSS4

CSS2

CSS4

Detection SW status

AB series size Inch series size

Detection width

range

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 29

Page 74

[Paper remaining quantity detection] (1) Paper remaining quantity detection

Paper remaining quantity detection is common in each tray except for the manual feed tray. Remaining quantity is indicated in 3 steps plus paper empty (4 steps in total).

(2) Detection method

Paper remaining quantity is detected by the number of times of changing of the remaining quantity sensor from when the tray starts lifting up to when the upper limit sensor turns on.

(Remaining quantity sensor status change when the tray is moving up and remaining quantity)

Paper empty is detected by the paper empty sensor.

MCPED

When paper empty is detected

(Paper empty sensor)

Rotating plate

Paper remaining quantity detection actuator

1/3 area sensor logic LOW

MCSPD (Paper remaining quantity sensor)

Paper remaining quantity at 1/3

2/3 area sensor logic HIGH

Paper remaining quantity at 2/3

3/3 area sensor logic LOW

Paper remaining quantity at 3/3

Indication of remaining quantity Sensor status Paper quantity: 100% Paper quantity sensor: OFF Paper quantity: 66% Paper quantity sensor: ON Paper quantity: 33% Paper quantity sensor: OFF (2nd time) Paper quantity: 0% Paper sensor: OFF

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 30

Page 75

D. Maintenance and parts replacement (1) Maintenance list

Unit name No. Part name

Paper feed section

Note 1: Replacement reference:Use the counter value of each paper feed port as the replacement reference.

Paper feed roller/Separation pad/Torque limiter section (Include Desk, Multi purpose): 100K or 1 years

1 Pick-up roller ✕ ✕✕✕✕✕✕✕✕Note 1 2 Paper feed roller ✕ ✕✕✕✕✕✕✕✕Note 1 3 Separation roller ✕ ✕✕✕✕✕✕✕✕Note 1 4 Torque limiter ✕ ✕✕✕✕✕✕✕✕Note 1

When

calling

100K 200K 300K 400K 500K 600K 700K 800K Remark

(2) Maintenance and parts replacement

No. Unit Parts

a 1 Pick-up roller ✕

2 Paper feed roller ✕ 3 Separation roller ✕ 4 Torque limiter ✕ 5 Paper feed cassette upper limit

detection

6 Paper feed cassette paper

empty detection 7 Cassette detection PWB 8 Lift-up motor

1 3

a-1. Pick-up roller a-2. Paper feed roller a-3. Separation roller a-4. Torque limiter

1) Pull out No. 1 paper feed tray unit.

a-7

a-8

a-2 a-4

a-5 a-6

a-1 a-3

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 31

2) Disengage the pawl, and remove the paper guide.

Page 76

3) Disengage the pawl, and remove the pickup roller and the paper feed roller.

4) Disengage the pawl, and remove the separation roller and the torque limiter.

a-7. Cassette detection PWB

1) Remove the screw, and remove the rear cabinet.

2) Remove the connector, and remove the cassette detection PWB.

a-5. Paper feed cassette upper limit detection a-6. Paper feed cassette paper empty detection

1) Pull out No. 1 paper feed tray unit, and remove the paper guide.

2) Remove the screw, and remove the pickup roller arm.

3) Remove the paper feed roller and each part.

4) Remove the pickup roller shaft, and remove the pickup roller guide.

5) Remove the actuator.

6) Remove the connector, the paper feed cassette upper limit detection, and the paper feed cassette paper empty detection.

a-8. Lift-up motor

1) Remove the screw, and remove the rear cabinet.

2) Remove the connector and the screw, and remove the lift-up motor unit.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 32

Page 77

3) Remove the E-ring, the gear, and the spring.

4) Remove the screw, and remove the lift-up motor.

4. Transport section/Paper exit reverse

section

A. General

In this paper transport section, paper fed from each paper feed port is transported to the resist roller section, where the lead edge of the paper is aligned with the lead edge of images on the OPC drum. Images are transferred onto paper in the transfer section, and the paper is discharged face-up or face-down through the fusing section.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 33

Page 78

B. Major parts and signal functions

SMP-03V-BC+SMR-03V-B

CN4

B32B-PHDSS-B

/POMXB

+5V2

/POMB

POD1

/POMA

GND2

/POMXA

+5V2

+24V1

POD2

+24V1

GND2

+5V2

CFM2\

POD3

+24V1

GND2

+24V1

CFM2\

+24V1

VFM2\

+24V1

GND2

(NC)

GND2

DSW-L

(NC)

DSW-F

PCU PWB

9604S-08C DSW-F DSW-F GND2 GND2 +5V1 GND2 MM\ MM-T

B24B-PHDSS-B

GND2 +24V1 PED CPFC\ +5V2 +24V1 GND2 RRC\ LUD +24V1 +5V2 TRC\ GND CSS GND2 GND2 PPD1 LUMB +5V2 LUMA CFM1\ GND2 +24V1 GND2

CN9

1 2 3 4 5 6 7 8

CN13

1 2 3 4 5

6 7

8 9

10 11

12 13 14

15 16

17 18

19 20

PHNR-09-H+BU09P-TR-P-H

+5V2

PPD1

GND2

+5V2

LUD

GND2

+5V2

PED

GND2

TSR-04V-K

RD GY BR

GND2 +24V1 GND2 CFM1\

7 6 5 4 3 2

8FE-ST-VK-N 8 7 6 5 4 3 2 1

PHNR-02-H+BU02P-TR-P-H

PHNR-03-H+BU03P-TR-P-H

1 22

PHNR-03-H+BU03P-TR-P-H

+5V2

PPD1

GND2

DRAWER

PWB

POD1 GND2 +5V2

DSW-L DSW-L GND1 GND1 +5V2 GND2 MM\ MM-T

RRC\ +24V1

TRC1\ (NC) +24V1

+24V1 CFM1\ GND2

PHR-3

2 12

179228-3(AMP)

+5V2

PPD1

GND2

PHNR-03-H+BU03P-TR-P-H

+24V1

CFM1\

GND2

HVR PWB

1 2 3

RD BR GY

SMR-06V+SMP-06V-NC BR

/POMXA

/POMA

/POMB

/POMXB

+24V1

179228-3

POD1

GND2

+5V2

179228-3

+5V2

POD2

GND2

179228-3

+5V2

POD3

GND2

SFPS-41T-187

PHNR-03-H+BU03P-TR-P-H RD

+24V1

VFM2\

GND2

2 3 4 5 6

DSW-L

13 2 3

TRC

HVR PWB

RRC

CFM1

POM

POD2

POD1

VFM2

POD3

PPD1

Code

Signal

name

Name Function/Operation Type Note

POD1 POD1 Paper exit detector 1 Paper exit detection from fusing Transmission

type

POD2 POD2 Paper exit detector 2 Paper pass detection from paper exit Transmission

type

POD3 POD3 Paper exit detector 3 Paper exit detection to upper section

paper exit tray (Full detection)

Transmission type

POM POM Paper exit motor Drives the paper exit roller. Stepping

motor

VFM2 VFM2 Fusing cooling fan motor Discharges heat generated in the

fusing section.

CFM1 CFM1 Fusing cooling fan motor Discharges heat generated in the

fusing section to cool it.

DC brushless motor DC brushless motor

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 34

Paper transport system sensor

Selection of Normal speed/ High speed/ Reverse rotation PWM control

PWM control

Page 79

Code

Signal

name

Name Function/Operation Type Note

RRC RRC Resist roller clutch Resist roller ON/OFF control Electromagnetic

clutch

TRC TRC Paper transport roller clutch Paper transport roller ON/OFF control Electromagnetic

clutch

MM MM Main motor Drives the paper transport and resist roller DC brushless

Paper pass

motor

No. Name Function

1 Transport roller 15 Transports paper to the transport resist roller. 2 Resist roller (Drive) Transports paper to the transfer section. / Controls the transport timing of paper to adjust the

relationship between images and paper. 4 Paper exit and transport roller Transports paper from the fusing roller to the paper exit roller. 5 Paper exit roller Discharges paper to the paper exit tray. / Switchbacks paper.

C. Operational descriptions

[Paper transport path and paper exit] Paper transport path with an option installed

Option Model name Desk AR-D27 Duplex unit AR-DU4 Finisher AR-FN6

Option Model name Desk AR-D27 Duplex unit AR-DU3 Finisher AR-FN7 Male bin stacker AR-MS1 Punch unit AR-PN1

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 35

Page 80

3. Paper transport in duplex printing (with AR-DU3/DU4 installed) (1) Switchback operation and paper exit to the left tray

1) Paper transported from the fusing section is sent to the paper exit section of the machine.

2) When the male bin stacker (AR-MS1) or the finisher (AR-FN5) is installed, the paper entry gate solenoid (FGS) selects the paper entry gate to discharge paper outside the machine.

3) The paper exit sensor (POD2) detects the rear edge of paper, and the paper exit motor (POM) is rotated reversely.

4) Paper is taken into the machine again, passed over the reverse gate, and transported to the duplex unit.

5) When duplex printing is made, the ADU gate solenoid switches to the upper side of the ADU paper exit gate to switch the paper path to the ADU.

6) When paper is discharged to the left tray or when paper is transported to the console finisher (AR-FN7), the ADU gate solenoid switches to the upper side of the ADU paper exit gate to switch the paper path to the ADU.

(2) Paper transport speed in duplex printing

The transport speed may be doubled in duplex printing depending on the paper position. The positions of double speed are as follows:

1) From when the rear edge of paper passes the fusing section to when switchback operation is started.

2) From switchback operation, after the lead edge of paper passes APPD1, until a certain amount is transported.

3) After that, paper is stopped at the ADU paper feed position, and fed to the laser printer again.

4. Transport with AR-FN6 installed

The AR-FN6 is provided with the decurler to improve alignment capability of finishing. The decurler makes decurling against curling of paper by means of the difference in rigidity of the upper roller (metal) and the lower roller

(sponge).

Metal

Sponge

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 36

Page 81

D. Maintenance and parts replacement

(1) Maintenance list

Unit name No. Part name

Transport section/ Paper exit reverse section

1 Resist roller ✕ ❍❍❍❍❍❍❍❍ 2 Transport rollers ✕ ❍❍❍❍❍❍❍❍ 3 Transport paper guides ❍ ❍❍❍❍❍❍❍❍ 4 Paper dust remover unit ❍ ❍▲❍▲❍▲❍▲ 5 Paper transport detection

1 2

When

calling

100K 200K 300K 400K 500K 600K 700K 800K Remark

(2) Maintenance and parts replacement

No. Unit Parts

a 1 Paper dust remover unit ❍ b Resist roller unit 1 Resist roller ✕❍

2 Paper transport roller 3 Paper transport detection 4 High voltage resistor PWB

c Left door unit 1 Suction fan motor

2 High voltage resistor PWB 3Drawer PWB

d Paper exit

reverse unit

1 Paper exit detection 1 2 Paper exit motor 3 Left door open/close

detection 4 Exhaust heat fan motor 5 Paper exit detection 2 6 Paper exit full detection 7 After-fusing roller 8 Paper exit roller

a-1

d-6 d-5

d-2 d-3

d-1

b-4 c-2

c-1

c-3

d-4 d-8

d-7

b b-1 b-2

b-3

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 37

Page 82

a-1. Paper dust remover unit

1) Open the front door.

2) Remove the paper dust cleaner unit.

b-1. Resist roller

1) Remove the paper dust cleaner unit.

2) Remove the resist roller unit.

3) Remove the parts, and remove the resist roller.

4) Remove the gear, the parallel pin, and the E-ring.

b-2. Paper transport roller

1) Remove the paper dust cleaner unit.

2) Remove the resist roller unit.

3) Remove the parts, and remove the paper transport roller.

b. Resist roller unit

1) Remove the paper dust cleaner unit.

2) Remove the screw, and remove the resist roller unit. Disconnect the connector.

b-3. Paper transport detection b-4. High voltage resistor PWB

1) Remove the paper dust cleaner unit.

2) Remove the resist roller unit.

3) Remove the screw, and remove the paper dust cleaner guide.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 38

Page 83

4) Remove the screw and the connector, and remove the paper transport detector.

5) Remove the screw and the earth wire, and remove the high voltage resistor PWB.

c. Left door unit

1) Remove the screw, and remove the left door unit.

3) Remove the connector, the screw, and the washer, and remove the suction fan motor.

4) Remove the screw, and remove the high voltage resistor PWB.

∗ When installing the fan, check the left door indication arrow and

note the fan direction.

c-3. Drawer PWB

1) Remove the left door unit.

2) Remove the left door transport paper guide.

3) Remove the screw, and the reverse gate unit and remove the angle.

c-1. Suction fan motor c-2. High voltage resistor PWB

1) Remove the left door unit.

2) Remove the screw, and remove the transfer lock pawl.

3) Remove the screw, and remove the left door transport paper guide.

4) Remove the screw, and remove the angle.

5) Remove the connector, the screw, and remove the drawer PWB.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 39

Page 84

d. Paper exit reverse unit

1) Pull out the left door.

2) Remove the screw, and remove the rear cabinet.

6) Remove the screw, and remove the paper exit tray cabinet.

7) Remove the screw, and remove the front right upper cabinet.

8) Remove the front door.

9) Remove the E-ring and the parts.

10) Remove the screw and the connector, and remove the paper exit reverse unit.

3) Remove the screw, and remove the paper exit upper cabinet.

4) Remove the screw, and remove the left rear cabinet.

5) Remove the screw, and remove the front left upper cabinet.

d-1. Paper exit detection 1

1) Remove the paper exit reverse unit.

2) Remove the actuator. Remove the connector, and remove the paper exit detection 1.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 40

Page 85

d-2. Paper exit motor

1) Remove the paper exit reverse unit.

2) Remove the connector and the screw, and remove the paper exit motor.

4) Remove the connector, the exhaust heat fan, the paper exit detection 2, the paper exit full detection.

d-3. Left door open/close detection

1) Remove the paper exit reverse unit.

2) Remove the connector and the screw, and remove the left door open/close detection.

d-4. Exhaust heat fan motor d-5. Paper exit detection 2 d-6. Paper exit full detection

1) Remove the paper exit reverse unit.

2) Remove the screw, and remove the exhaust duct.

3) Remove the screw, and remove the paper exit upper paper guide reinforcement plate.

∗ When installing the fan, check the indication arrow and note the

fan direction.

d-7. After-fusing roller

1) Remove the paper exit reverse unit.

2) Remove the E-ring and the parts.

3) Remove the connector and the screw, and remove the paper exit drive frame.

4) Remove the bearing, the E-ring, and the parts.

5) Remove the E-ring, and remove the fusing rear roller. Remove the bearing.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 41

Page 86

d-8. Paper exit roller

1) Remove the paper exit reverse unit.

2) Remove the screw, and remove the paper exit upper paper guide unit.

3) Remove the E-ring, and remove the paper exit roller. Remove the bearing, the gear, and the parallel pin.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 42

Page 87

5. Laser scanner section

B. Major parts and signal functions

A. General

Image data sent from the MFP (image process circuit) through the mother board and PCU are converted into laser beams to radiate onto the drum surface.

MFP CONTROL PWB

MOTHER BOARD PWB

POWER SOURCE SECTION

VFM1

CN2 S32B-PHDSS-B

45 sheets (35 sheets)

TEST3

TEST2

GND2

/SYNC

GND2

LSU_S/H

VRB

GND2

TEST

VIDEO

/VIDEO

/LDON

GND2

+5V2

GND2

+5V2

+24V1

/VFM1

GND2

/START

/VFM1

/PMCLK

/READY

GND2

+5V LD

GND2

CN1

LSU

S11B-PH-K-S 45 sheets (35 sheets) +24V1 VFM1\ GND2 +24V1 VFM1\ GND2 +24V1 PMCLK\ READY(READY\) START\ GND2

CN3

S4B-PH-K-S GND2 SYNC\ GND2 +5V2

B4B-PH-K-S

GND2 SYNC\ GND2 +5V2

PHNR-03-H+BU03P-TR-P-H

+24V1

VFM1\

GND2

PHNR-03-H+BU03P-TR-P-H

+24V1

VFM1\

GND2

PHR-5

PMCLK

READY

START\

GND2

+24V1

PCU PWB

CN2 SLD30R-1

+12V2

PCU_VCCW

GND

DTR_PCU

GND

DSR_PCU

GND

TXD_PCU

GND

RXD_PCU

POF

MSW_MON

CN2CN1

GND

RES_PCU

GND

HSYNC

GND

DTEN

BUR_PR

GND2

VIDEO1

VIDEO0

GND

+5V1

+5V2

+5V2 +5V2

+12V1

S32B-PHDSS-B

TEST3 TEST2 GND2 /SYNC GND2 GND2 GND2 LSU_S/H VRB GND2 GND2 TEST VIDEO /VIDEO /LDON GND2 GND2 +5V2 GND2 +5V2 +24V1 +24V1 /VFM1 GND2 /START /VFM1 /PMCLK /READY GND2 GND2 +5V LD GND2

CN16

LBR

Code

Signal

name

Name Type Function/Operation NOTE

PM PM Polygon mirror (motor) Reflects laser beams at the constant rotation speed. BD BD PWB Detects the laser scan start timing. This device is used

to detect a laser trouble.

No. Name Code, signal name Function RW Control signal +5VLD 5V power for laser diode RW Control signal /READY Polygon mirror motor READY signal ("L" in the constant speed rotation) RW Control signal /PMCLK Clock signal for driving the polygon mirror motor RW Control signal /START Polygon mirror motor drive start signal RW Control signal /VIDEO VIDEO (Image signal) RW Control signal /SYNC Sync signal (SYNC) from BD, sync signal for 1 line

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 43

Page 88

No. Name Function

1 Laser control PWB Controls laser beam flashing and the output value. 2 Cylindrical lens Converges laser beams to focus. 3 Incidence reflection mirror Assures the optical path for laser beams. 4 No. 1 mirror Assures the optical path for laser beams. 5fθ lens 1 Deflects laser beams so that the laser scan speeds on the both ends of the drum and that at the 6fθ lens 2 7 BD PWB Detects the timing of laser scan start. This device is used to detect a laser trouble. 8 No. 2 mirror Converges laser beams to focus. 9 Plane lens Assures the optical path for laser beams.

10 Convergence lens for BD Converges laser beams onto the BD PWB.

C. Operational descriptions

[Laser optical path]

∗ The LSU must not be disassembled in the market.

center of the drum are the same.

a-1. LSU

1) Remove the screw, and remove the right cabinet.

(1) Polygon motor

Model

31/35PPM 14 17000RPM OIL Superior in

45PPM 14 22000RPM OIL

Number

of mirrors

RPM Bearing

silence.

(2) Outline of LSU specifications

Effective scan width: 297mm Resolution: 600dpi Beam diameter: Main scan = 60 - 85 µm

Laser power: 0.23±0.01mW (45 PPM)

LD wave length: 770 - 795nm

Sub scan = 75 - 110 µm

0.19±0.01mW (35 PPM)

D. Maintenance and parts replacement

No. Unit Parts

a1LSU

2) Remove the screw, and remove the right noise cover.

3) Remove the connector, and remove the screw.

a-1

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 44

Page 89

4) Remove the screw, and remove the rear cabinet.

5) Remove the connector, the screw, and the angle. Remove the snap band.

∗ Do not disconnect the LSU side.

8) Remove the screw, and remove the main switch mounting plate.

9) Remove the power unit.

6) Pull out the No. 1 paper feed tray unit, and push up and remove the front door.

7) Release the lock, and pull out the left door. Remove the screw, and remove the front cover right.

10) Remove the connector and the screw, and remove the duct holding cover.

11) Remove the screw, and remove the LSU.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 45

Page 90

6. Scanner section

A. General

There are following three methods of scanning documents in this machine.

a. Place a document on the table glass. The copy lamp unit is

operated to radiate copy lamp light onto the document, scanning the document with the CCD.

b. The SPF feeds a document. The copy lamp light is radiated

onto the document which is stopped at the specified position and the document is scanned by the CCD.

c. The SPF feed a document. The LED light of the CIS unit which

is attached to the SPF is radiated to the back of the document, and the document is scanned by the CIS.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 46

Page 91

B. Major parts and signal functions

MHPS

MIM

CCD PWB

CL1

10 4 9

GND2 GND2 /CL1 +24V3 +24V3

SLD5R-1

CN3

CN1 IL-FPR-40S-VF-E1500

GND2

1_DATA1+

36 35

1_DATA1GND2

1_DATA0+

33 32

1_DATA0GND2

1_CLK+

1_CLK-

GND2

/1_DBL+

/1_DBL-

26 25

GND2 FRM_CCD1

24 23

PAGE1 CLK_CCD1

22 21

ADD_CCD1

TXD_CCD1

RXD_CCD1

RES_CCD1

GND2

+3.3V3

GND2

+5VCCD

+5VCCD +5VCCD

+5VCCD

GND2

+10VCCD

3 2

GND2

CN1

5 4 3 2 1

CN2 SLD5S-1

1 2 3 4 5

GND2

GND2 GND2 /CL1 +24V3 +24V3

SCN JNT PWB

(1/2)

TX25-100P-LT-H1

CN1 TX24-100R-LT-H1

SCN cnt PWB

(1/3)

MIMA MIMB /MIMA /MIMB +24V3

MHPS GND2 +5V2

S5B-PH-K-S

S3B-PH-K-S

CN2

1 2 3 4 5

CN11

53053-0310(MOLEX)

MHPS

GND2

+5V2

7 8 1112

35 61

Code Signal name Name Function/Operation Type Note MIM MIM Scanner (reading) motor Drives the scanner (reading) section. Stepping motor MHPS MHPS Scanner home position

Scanner home position detection Transmission type Sensor

sensor detector CL1 CL1 Copy lamp Document exposure lamp CCD PWB CCD PWB Front document image scan (Document table/

SPF mode) Converts the document images (optical signals) into electrical signals.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 47

Page 92

No. Name Function

1 Copy lamp unit Lights up to radiate documents. A xenon lamp (operating on 3.15KV) is employed. 2 Reflector This mirror converges lights on documents. 3 No. 1 mirror Secures the optical path between a document and No. 2 mirror. 4 No. 2 mirror Secures the optical path between No. 1 mirror and No. 3 mirror. 5 No. 3 mirror Secures the optical path between No. 2 mirror and the CCD. 6 CCD/Lens unit The reduction optical type CCD (Charge Coupled Device) of 7,450 pixels is employed. The scan resolution

7 White balance sheet Serves as the reference sheet of white for scanning with the CCD/Lens unit. If dust or dirt is attached to

8 Table glass A document is set on this glass. The glass surface is coated for protection against static electricity.

9 SPF scan glass The copy lamp unit is fixed, and a document is moved over this glass to scan line by line. The glass

10 Mirror home position

sensor (MHPS) 11 Scan motor Drives the mirror base and the copy lamp unit. 12 DSPF white balance

sheet

is 600dpi. Converts photo energy reflected by the mirrors into electric energy.

this sheet, white streaks may be produced.

A document is set to the top left corner.

surface is coated for protection against static electricity. If dust or dirt is attached to this sheet, black streaks may be produced. Detects the home position of the mirror base unit.

Serves as the reference sheet of white for scanning with the CIS unit. If dust or dirt is attached to this sheet, white streaks may be produced.

C. Operational descriptions

(1) CCD/lens unit

This machine employs the reduction optical-type line CCD (Charge Coupled Device) of scan resolution of 600dpi and 7450 pixels. CCD scan is performed by shifting the scan positions sequentially by the carriage unit (lamp and mirror) scan or moving the document with

the SPF. Lights reflected by the document are reflected by each mirror to form images on CCD elements through the reduction-type lens. The CCD

converts the optical energy into electrical energy (analog). (Photoelectric conversion)

(2) CIS unit

The image sensor which scans back document images is attached to the SPF. The close-contact type image sensor (Contact Image Sensor) with scan resolution of 600dpi and 7196 pixels is employed.

For the CIS to scan documents, the scan position is sequentially shifted by shifting the document by the SPF, and the LED light in the unit is radiated to the back of the document, and photo energy is converted into electric energy (analog signal).

CIS UNI

Auto-focus lens

LED PWB

Glass

CIS

Lens center line

Focus point

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 48

Page 93

(3) Image signal flow

The image signal converted into electric energy (analog signal) is A-D converted on the CCD PWB. Image processes such as white balance and shading correction are performed on the scanner control PWB. The image signal is then sent through the mother board to the MFP control PWB.

In the MFP control PWB, image process is performed according to the setting content of the operation panel. The image data are converted into laser lighting signals (VIDEO signals), and sent through the mother PWB and the PCU to the LSU (Laser Scan Unit).

In the LSU, the VIDEO signals are converted into laser beams, which are radiated onto the drum.

(4) Carriage (lamp unit) shift (scan) speed

The carriage scan speed depends on the copy magnification ratio. Speed up to 171% = 110mm/s Speed of 172% - 400% = 55mm/s

(5) Timing chart

Platen timing chart

MIMD

Home position Home position

MHPS

CCD

PSW

SPF duplex timing chart

Feed Return

Scan

SPFM

SRRC

SPPD4

SPOD

CCD

CIS

181mS

1030mS

94mS

55mS

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 49

Page 94

D. Maintenance and parts replacement

(1) Maintenance list

Unit name Part name

Scanner section

When

100K 200K 300K 400K 500K 600K 700K 800K Remark

calling

(2) Maintenance and parts replacement

No. Unit Parts

a Scanner unit 1 OC ❍

2 Dust-proof glass ❍ 3 Table glass ❍ 4 White reference glass ❍ 5Mirror ❍ 6 Rails ✩ 7 Drive wire ✕ 8 Pulley ✕

9 Drive belt ✕ 10 Scan motor 11 OC open sensor 12 Mirror home position sensor 13 Scanner control PWB 14 Scanner interface PWB

b Lamp unit 1 Reflector ❍

2Mirror ❍

3 Lamp

4Inverter PWB

c CCD lens

PWB unit

1 CCD lens

a-2

a-6 a-4 a-5

a-6

a-10 a-11

a-13

a-12

a-14

a-1

a-3

c-1

b b-1 b-2

a-9 a-8

a-7

a-8 b-4

b-3

a-7

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 50

Page 95

a. Scanner unit a-1. OC

1) Remove the OC cover.

a-6. Rails

1) Remove the table glass.

2) Grease up the rails.

a-2. Dust-proof glass a-3. Table glass a-4. White reference glass

1) Remove the table glass holder and the white reference glass holder, and remove the table glass and the white reference glass.

a-7. Drive wire a-8. Pulley a-9. Drive belt

1) Remove the table glass.

2) Check the drive wire, pulley and drive belt.

a-5. Mirror

1) Remove the table glass.

2) Clean mirror.

a-10. Scan motor

1) Remove the scanner rear cabinet and the rear lower cabinet.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 51

Page 96

2) Pull out the harness from the scanner control PWB.

3) Remove the scan motor.

a-14. Scanner interface PWB

1) Remove the table glass.

2) Remove the PWB cover and the harness cover.

a-11. OC open sensor

1) Remove the rear cabinet.

2) Remove the OC open sensor.

a-12. Mirror home position sensor

1) Remove the rear cabinet.

2) Remove the mirror home position sensor.

3) Remove the scanner interface PWB.

b. Lamp unit

1) Remove the table glass.

2) Remove the scan lamp unit.

a-13. Scanner control PWB

1) Remove the scanner rear lower cabinet.

2) Disconnect the connector and earth band, and pull out the scanner control PWB.

∗ When the scanner control PWB is replaced, the EEPROM must

be replaced.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 52

Page 97

b-1. Reflector b-1. Mirror

1) Remove the table glass.

2) Clean the reflector and the mirror.

b-3. Lamp

1) Remove the table glass.

2) Slide the lamp unit base to the notch section.

b-4. Inverter PWB

1) Remove the table glass.

2) Hold with your hand and remove the screw. Remove the connector and remove the inverter PWB.

c. CCD lens PWB unit

1) Remove the table glass.

2) Remove the dark-box cover.

3) Flip the notch section Mylar and remove the screw. Slide the lamp holder to the front side, and remove it upward from the rear side. Remove the connector.

3) Remove the CCD lens PWB unit. Note: The CCD lens PWB unit is factory-adjusted before

shipping. Since these adjustments cannot be performed in the market. Never touch the screws other than screw 2) of the CCD lens PWB unit.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 53

Page 98

Note for CCD lens PWB unit installation

<1> Adjust the CCD unit adjustment value listed in the table

below with the scribed line on the lens base.

CCD unit adjustment value

(+) direction

Reference line

(-) direction 1 scale: 1.4mm

CCD adjustment value +4 scales 5.0~ +3 scales 3.6~4.9 +2 scales 2.2~3.5 +1 scale 0.8~2.1 Reference -0.6~0.7

-1 scale -2.0~ -0.7

-2 scales -3.4~ -2.1

-3 scales -4.8~ -3.5

-4 scales ~ -4.9

<2> Make a sample copy at the above position, and measure

the magnification ratio.

<3> Change the installing position in the horizontal direction to

adjust the magnification ratio.

• When the copy image is longer than the original, shift to the positive (+) direction.

• When the copy image is shorter than the original, shift to the negative (-) direction.

∗ 1 scale of the scribed line corresponds to 0.3% of magnifica-

tion ratio.

∗ If this adjustment is not satisfactory, make a fine adjustment

with SIM 48-1. (Refer to the adjustment described below.)

4) Clean the CCD lens and the CCD.

7. DSPF section

A. General

Sheet documents are automatically fed and transported for continuous scanning.

The DSPF (AR-EF3) supports duplex sheet to scan both of the front and the back surfaces at a time.

c-1. CCD lens

1) Remove the table glass.

2) Remove the dark-box cover.

3) Remove the lens cover.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 54

Page 99

B. Major parts and signal functions

SCOV

SDSS

SPED

OCSW

SPLS2

SPLS1

SPFM

1754873+179228-3

+5V1 SPED GND2

1754873+179228-3

+5V2 SCOV GND2

1754873+179228-3

+5V2 SPPD GND2

SMP-02V-NC+SMR-02V-N

+24V3 /SDSS

B3B-PH-K-S +5VPOD GND2 SPOD

1754873+179228-3

+5V2 SOCD GND2

PHNR-2-H+BU2P-TR-P-H

+24V3

/SPFC

PHNR-3-H+BU3P-TR-P-H

+24V3

(NC)

/SRRC

SMR-03V-NC+SMP-03V-N

VAREF

SPWS

GND2

1754873+179228-3

+5V2 SPLS1 GND2

1754873+179228-3

+5V2 SPLS2 GND2

PHNR-2-H+BU2P-TR-P-H

+24V3

/SPFS

1 2 3

11 2

1 2 3

1 2

1 2 3

1 2

STMP

PHNR-6-H+BU6P-TR-P-H

/B +24V3

4 3

A +24V3

2 1

PHNR-11-H+BU11P-TR-P-H

+5V1

SPED

GND2

+5V2

SCOV

GND2

+5V2

SPPD

GND2

+24V3

/SDSS

PHNR-6-H+BU6P-TR-P-H

+5VPOD

GND2

SPOD

4 3

+5V2

SOCD

GND2

1 2 3 4 5 6

SRRC

1 2 3 4 5 6

11 10

9 8 7 6 5 4 3 2 1

SPPD

SPFC

SPOD

CND B6B-PH-K-S

+24V3

CNB B22B-PHDSS-B

+5V

SPED

GND2

+5V2

SCOV

GND2

+5V2

SPPD

GND2

+24V3

/SDSS

+5VPOD

9 4

GND2

SPOD +5V2

SOCD

GND2

+24V3

/SPFC

+24V3

/SRRC

(NC)

CNA B12B-PHDSS-B

VAREF

SPWS

GND2

+5V2

SPLS1

GND2

+5V2

SPLS2

GND2

+24V3

/SPFS

SRA-01T-3.2

SRA-21T-3

B26B-PHDSS-B +24V3 +24V3

GND2 GND2

+5V2 GND2 VAREF SPPD SPFC SPED SDSS SCOV SRRC SPWS SPFS

SPFMO0 SPOD /SPFMA SOCD SPFMA SPLS1 /SPFMB SPLS2 SPFMB SPFSET GND2

SPF

PWB

CNC

7 8 5 6

4 9 17 19 18 21 12 23 14 24 16

3 25 2 26 1 22 11 20 13 15 10

GYGY

SRA-21T-3

179228-4+175694-4

+24V3 /STMPS /STSET GND2

SPFS

SOCD

CN10 S28B-PHDSS

+24V3

GND2

3 4

GND2

+5V1

+5V2 GND2

VAREF

SPPD

SPFC SPED

SDSS

SCOV

13 14

SRRC

SPWS

SPFS GND2

GND2

SPFMO0

SPOD

/SPFMA

SOCD

22 23

SPFMA

SPLS1

/SPFMB SPLS2

SPFMB

SPFSET

S26B-PHDSS

2_DATA1-

2_DATA1+

2_DATA0-

2_DATA0+

2_CLK-

2_CLK+

2_DBL-

2_DBL+

GND2

FRM_CCD2

CLK_CCD2

PAGE2

ADD_CCD2

TXD_CCD2

RES_CCD2

RXD_CCD2

16 17

+3.3V

+24V3

GND2

+12V1

GND2

+5V2

GND2

+5V2 /CIS_SET

SCN cnt PWB

CN6 B4B-PH-K-S 1

+24V3

/STMPS

/STSET

GND2

SPFVR

CIS unit

TX24-100R-LT-H1

CN7

5 2

CN1

CN3

TX25-100P-LT-H1

CN3

9604S-35F

VLED

DGND

VAS

DGND

VDS

DGND

SCN JNT PWB

(1/2)

CIS cnt PWB

CN1 B26B-PHDSS

2_DATA12_DATA1+ 2_DATA02_DATA0+ 2_CLK2_CLK+ 2_DBL2_DBL+ GND2 FRM_CCD2 CLK_CCD2 PAGE2 ADD_CCD2 TXD_CCD2 RES_CCD2 RXD_CCD2 +3.3V +3.3V +24V3 GND2 +12V1 GND2 +5V2 GND2 +5V2 /CIS_SET

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

SCN DGND LGATE DGND CLK DGND DATA DGND

DGND SCLK DGND /LST DGND SD0 DGND SD1 DGND SD2 DGND SD3 DGND SD4 DGND SD5 DGND SD6 DGND SD7

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 55

Page 100

Code

SCOV SCOV SPF cover switch SPF cover open/close detection Transmission type Sensor SPFM SPFM1 SPF paper feed motor, paper

SPFC SPFC SPF paper feed clutch SPF paper feed section roller ON/OFF

SRRC SRRC SPF resist roller clutch SPF resist roller ON/OFF control Electromagnetic clutch SPED SPED SPF document set detector SPF document presence detection Transmission type Sensor SPPD SPPD SPF document paper pass detector SPF document paper pass detection 1 Transmission type Sensor SPFS SPFS SPF document pickup solenoid SPF document pickup Solenoid STMP STMP FAX finish stamp solenoid Drives the FAX document finish stamp. Solenoid SPLS1 SPLS1 SPF document length detector 1 SPF document length detection (Short) Transmission type Sensor SPLS2 SPLS2 SPF document length detector 2 SPF document length detection (Long) Transmission type Sensor SPFVR SPFVR SPF document size (Width)

SOCD SOCD SPF open/close detector SPF unit open/close detection Transmission type Sensor SPOD SPOD SPF paper exit detector SPF paper exit detection Transmission type Sensor

No. Name Function

1 CIS unit

2 Document resist roller This roller makes synchronization between the document lead edge and the scan start

3 Document resist front sensor

4 Document set sensor Detects that a document is set on the tray. 5 Document feed roller Feeds documents. 6 Separation plate The rubber plate prevents against duplicated feed of documents. 7 Document length sensor

8 Document width detection volume Detects the document width to detect the document guide.

9 SPF motor Transports a document in the SPF. 10 Document take-up roller Picks up a document and transport it to the document feed roller. 11 Document exit roller Discharges a document. 12 Document exit sensor (SPOD) Detects document exit.

Signal

name

(AR-EF3 only)

(SPPD)

(SPLS1/SPLS2)

Name Function/Operation Type Note

transport motor

detection analog data detector

This is an image sensor unit to scan the back of a document. An image sensor (CIS: Contact Image Sensor) of 7,196 pixels is employed. The scan resolution is 600dppi.LED lights in the unit are reflected onto the document. Lights reflected from the document are passed through the lens to form images on the photoelectric conversion elements. The photo energy is converted into electric energy.

position. Detects that a document reaches the resist roller.

Detects the document length to detect the document size.

Drives the paper feed roller and the transport roller. (SPF)

control

SPF document size (Width) detection Volume resistor Other

Stepping motor

Electromagnetic clutch

detector

C. Operational descriptions

(1) Document feed, transport, scan, paper exit, and

operating speed

The document fed by the take-up roller is sent through the paper feed roller and the transport roller to the resist roller section.

In the resist roller section, the document lead edge and the scan start position are synchronized. The document is transported to the scan section. After being scanned, the document discharged to the document exit tray by the paper exit roller.

The document transport speed varies depending on the scan mode and the scan magnification ratio as shown below.

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 56

Scan mode Magnification ratio

Single surface scan/ Duplex scan

100% or above 220mm/sec

101% or above 110mm/sec High image quality 110mm/sec FAX 167.1mm/sec

Document

transport speed

SHARP ARM351U, ARM451U, ARM355U, ARM455U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

[1] GENERAL

1. Note for servicing

A. Cautions for servicing

[2] CONFIGURATION

1. System configuration

A. Basic system

B. Option lineup

C. List of combination of peripheral devices

[3] SPECIFICATIONS

1. Basic Specification

A. Base Engine

B. Document Feeding Equipment

C. Output Equipment

2. Specific Function

A. Printer Function

B. Image send function

C. Copy function

3. B/W Scanner Module (DSPF)

4. Rack for Scanner

[4] CONSUMABLE PARTS

1. Supply system table

A. European Subsidiary/East Europe/Russia/Australia/New Zealand

B. Taiwan (Aurora)

C. Asia

D. Middle East/Africa/Israel/Philippines

E. Hong Kong

F. China

2. Maintenance parts list

A. Europe/Australia/New Zealand/Taiwan

B. Agency/Asia/Middle East/Africa/Latin America

C. Hong Kong

D. China

2. Production number identification

A. Drum cartridge

C. Developer cartridge

B. Toner cartridge

3. Environmental conditions

A. Operating conditions

B. Storage conditions

[5] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. Exterior

2. Interior

3. Operation panel

4. Job status screen (common to print, copy, fax, network scan and Internet fax)

5. Cross sectional view

A. Scanner unit

B. Engine

6. Switch, Sensor

A. Scanner unit

B. Engine

7. PWB

A. Scanner unit

B. Engine

8. Motor, Clutch, Solenoid

A. Scanner unit

B. Engine

[6] UNPACKING AND INSTALLATION

1. Installing procedure flowchart

2. Note for installation place

3. Unpacking procedure

B. AR-M351U/M451U (Except for Europe)

4. Remove the locking tape (AR-M355U/M455U (North America), AR-M351U/M451U (Europe))

5. Unpacking and installation of the desk unit

A. AR-D28

B. AR-D27

C. AR-MU2

7. Unpacking and installation of the AR-EF3 (Except for North America/ Europe)

8. Machine installing procedure

A. Setting related to process

B. Toner cartridge settings

C. Setting related to fusing

9. Automatic developer adjustment

D. Paper setting

10.Print test

12.Attach the document scanning label

13.Key sheet attachment