Sharp AR-C172M Service Manual

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SERVICE MANUAL

CODE: 00ZARC172MA1E

DIGITAL FULL COLOR MULTIFUNCTIONAL SYSTEM

MODEL

CONTENTS

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

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

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

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

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

[6] EXTERNAL VIEW AND INTERNAL STRUCTURE . . . . . . . . . . . . 6-1

[7] DESCRIPTIONS OF EACH SECTION. . . . . . . . . . . . . . . . . . . . . . 7-1

[8] SETTING AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[9] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

[10] MAINTENANCE LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

AR-C172M

[11] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

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

[13] ELECTRIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

[14] PRINTER CONTROLLER SECTION . . . . . . . . . . . . . . . . . . . . . . 14-1

[15] OTHERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

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.

CONTENTS

[1] OUTLINE

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

2. Newly employed technology . . . . . . . . . . . . . . . . . . . . 1-1

[2] CONFIGURATION

1. Product Line and options. . . . . . . . . . . . . . . . . . . . . . . 2-1

A. Line of machines . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

B. Line of options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

C. Machine configuration list. . . . . . . . . . . . . . . . . . . . 2-2

D. Combination of options list. . . . . . . . . . . . . . . . . . . 2-3

2. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

[3] SPECIFICATIONS

1. Basic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

A. Base engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

B. Paper feed unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

C. Paper exit unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

D. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

2. Functional specifications . . . . . . . . . . . . . . . . . . . . . . . 3-4

A. Specifications of copy functions. . . . . . . . . . . . . . . 3-4

B. Scanner functon (Option) . . . . . . . . . . . . . . . . . . . . 3-6

C. Reversing single pass feeder. . . . . . . . . . . . . . . . . 3-9

3. Environment conditions . . . . . . . . . . . . . . . . . . . . . . . . 3-9

A. Operating environment conditions . . . . . . . . . . . . . 3-9

B. Transit environment conditions . . . . . . . . . . . . . . . 3-9

C. Supply storage environment conditions . . . . . . . . . 3-9

D. Standard temperature and humidity. . . . . . . . . . . . 3-9

[4] CONSUMABLE PARTS

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

A. European Subsidiary . . . . . . . . . . . . . . . . . . . . . . . 4-1

2. Consumables (kit, unit) . . . . . . . . . . . . . . . . . . . . . . . . 4-1

3. Photoconductor cartridge, toner cartridge . . . . . . . . . . 4-2

A. Lot number identification and the term of

validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

[5] UNPACKING AND INSTALLATION

1. Installing (use) conditions . . . . . . . . . . . . . . . . . . . . . . 5-1

A. Bringing space . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

B. Installing space . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

C. Power source

(Capacity, voltage, frequency, safety, plug) . . . . . . 5-1

D. Floor strength and level . . . . . . . . . . . . . . . . . . . . . 5-1

E. Direct rays of the sun, dust, temperature,

humidity, gasses, chemicals, vibration. . . . . . . . . . 5-1

2. Transit and delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

A. Implements, facility, and manpower. . . . . . . . . . . . 5-2

B. Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

3. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

A. Unpacking procedure . . . . . . . . . . . . . . . . . . . . . . . 5-2

4. Lock release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

A. Scanner (2/3 mirror unit) lock release . . . . . . . . . . 5-3

B. Main body cassette lock release . . . . . . . . . . . . . . 5-3

C. Transfer unit pressure release . . . . . . . . . . . . . . . . 5-3

5. Fusing heat roller pressing (F/R) . . . . . . . . . . . . . . . . . 5-4

6. Black drum cartridge insertion . . . . . . . . . . . . . . . . . . . 5-5

7. Paper exit tray installation (Optional). . . . . . . . . . . . . . 5-5

8. Toner cartridges installation. . . . . . . . . . . . . . . . . . . . . 5-5

9. AC cord connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

10. Machine power ON . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

11. Specifications setup. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

12. Image quality check. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

13. Function and operation check . . . . . . . . . . . . . . . . . . . 5-7

14. Setup and adjustment data recording . . . . . . . . . . . . . 5-7

15. Necessary works before moving the machine. . . . . . . 5-7

[6] EXTERNAL VIEW AND INTERNAL STRUCTURE

1. Name and function of each section . . . . . . . . . . . . . . . 6-1

A. External view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

B. Internal structure . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

C. Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

D. Job status screen (common to print, copy,

network scan and fax) . . . . . . . . . . . . . . . . . . . . . . 6-4

E. Cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

F. Motors, clutches, solenoids, fans . . . . . . . . . . . . . . 6-7

G. Sensors, switches and heaters . . . . . . . . . . . . . . . 6-8

H. PWB 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

H. PWB 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

[7] DESCRIPTIONS OF EACH SECTION

1. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

A. Operational descriptions . . . . . . . . . . . . . . . . . . . . 7-1

B. Disassembly/Assembly/Maintenance. . . . . . . . . . . 7-3

2. Transfer section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

A. Operational descriptions . . . . . . . . . . . . . . . . . . . . 7-7

B. Disassembly/assembly/maintenance. . . . . . . . . . 7-10

3. Process (image forming) section . . . . . . . . . . . . . . . . 7-15

A. Operational descriptions . . . . . . . . . . . . . . . . . . . 7-15

B. Disassembly/assembly/maintenance. . . . . . . . . . 7-19

4. Optical section (Scanner section) . . . . . . . . . . . . . . . 7-22

A. Operational descriptions . . . . . . . . . . . . . . . . . . . 7-22

B. Disassembly/assembly/maintenance. . . . . . . . . . 7-25

5. Paper feed, paper transport, and paper exit

sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27

A. Operational descriptions . . . . . . . . . . . . . . . . . . . 7-27

B. Disassembly/assembly/maintenance. . . . . . . . . . 7-33

6. RSPF section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41

A. Operational descriptions . . . . . . . . . . . . . . . . . . . 7-41

B. Disassembly/assembly/maintenance. . . . . . . . . . 7-43

7. Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-49

A. Operational descriptions . . . . . . . . . . . . . . . . . . . 7-49

B. Disassembly/assembly/maintenance. . . . . . . . . . 7-50

8. External fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-51

A. Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-51

9. Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-53

A. Disassembly/assembly/maintenance. . . . . . . . . . 7-53

[8] SETTING AND ADJUSTMENTS

[ADJ 1] High voltage adjustment . . . . . . . . . . . . . . . . . 8-2

[ADJ 2] Image density sensor adjustment . . . . . . . . . . 8-4

[ADJ 3] Image focus, image skew adjustment

(LED (writing) unit) . . . . . . . . . . . . . . . . . . . . . . 8-6

[ADJ 4] Image registration adjustment . . . . . . . . . . . . . 8-8

[ADJ 5] Image position/print area adjustment

(Print engine section). . . . . . . . . . . . . . . . . . . 8-14

[ADJ 6] Copy image distortion adjustment . . . . . . . . . 8-15

[ADJ 7] Copy image focus (main scanning direction

copy magnification ratio) adjustment

(CCD unit position adjustment) . . . . . . . . . . . 8-18

[ADJ 8] Sub scanning direction copy magnification

ratio adjustment . . . . . . . . . . . . . . . . . . . . . . . 8-19

[ADJ 9] Main scanning direction copy image position

adjustment (Scanner (reading) section). . . . . 8-19

[ADJ 10] Copy image position/image loss/void area

adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20

[ADJ 11] Copy color balance/density adjustment . . . . . 8-21

[ADJ 12] Fusing pressure adjustment. . . . . . . . . . . . . . 8-35

[ADJ 13] Fusing paper guide position adjustment . . . . 8-36

[ADJ 14] Document size sensor adjustment. . . . . . . . . 8-36

[ADJ 15] Manual paper feed tray paper size sensor

adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37

[ADJ 16] Touch panel coordinates setting . . . . . . . . . . 8-37

[ADJ 17] Power voltage adjustment . . . . . . . . . . . . . . . 8-37

[ADJ 18] FAX/scanner mode image loss

adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38

[ADJ 19] RSPF scanning position automatic

adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38

[ADJ 20] RSPF lead edge skew adjustment. . . . . . . . . 8-39

[ADJ 21] Collective adjustment of image position and

magnification ratio . . . . . . . . . . . . . . . . . . . . . 8-40

[ADJ 22] Printer color balance adjustment . . . . . . . . . . 8-41

[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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

[10] MAINTENANCE LIST

1. Maintenance system table . . . . . . . . . . . . . . . . . . . . . 10-1

2. List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

A. Drum peripheral section . . . . . . . . . . . . . . . . . . . . 10-3

B. Developing section . . . . . . . . . . . . . . . . . . . . . . . . 10-3

C. Transfer section . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

D. Fusing section . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

E. Optical section (Scanner section). . . . . . . . . . . . . 10-6

F. Paper feed section, transport section. . . . . . . . . . 10-7

G. LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

H. RSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

I. Filters, drive section, others . . . . . . . . . . . . . . . . . 10-9

3. Relationship of maintenance timing,

consumable part life, display message, and

machine operations . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

A. Relationship of maintenance counter, display

message, and machine operations . . . . . . . . . . 10-10

B. Relationship of transfer unit system counter,

display message, and machine operations . . . . 10-10

C. Relationship of fusing unit counter, display

message, and machine operations . . . . . . . . . . 10-11

D. Relationship of drum cartridge system counters,

messages, and machine operations. . . . . . . . . . 10-11

E. Relationship of toner cartridge system counters,

display messages, and machine operations . . . 10-12

[11] TROUBLESHOOTING

1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

2. Functions and purposes . . . . . . . . . . . . . . . . . . . . . . 11-1

3. Kinds of self diagnostic messages. . . . . . . . . . . . . . . 11-1

4. Self diagnostic operation . . . . . . . . . . . . . . . . . . . . . . 11-1

A. Self diagnostic operation and work flow. . . . . . . . 11-1

5. List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

6. Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3

[12] ROM VERSION UP

1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

A. Target ROM for version up. . . . . . . . . . . . . . . . . . 12-1

B. When version up of ROM is required . . . . . . . . . . 12-1

C. Flash ROM version up method . . . . . . . . . . . . . . 12-2

2. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-4

A. Relationship between each ROM and

version up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-4

3. Necessary items for version up (copy) of

Flash ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5

4. Flash ROM version up procedure . . . . . . . . . . . . . . . 12-6

A. By using a computer and the ICU PWB, the

program data of Flash ROM is written from the

computer to the Flash ROM of the ICU PWB. . . . 12-6

B. Method using two Flash ROM sockets on

the ICU MAIN PWB to copy between

Flash ROM’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-9

[13] ELECTRIC DIAGRAM

1. System block diagram. . . . . . . . . . . . . . . . . . . . . . . . 13-1

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

3. Signal list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-18

[14] PRINTER CONTROLLER SECTION

1. System configuration. . . . . . . . . . . . . . . . . . . . . . . . . 14-1

A. Main unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

B. Basic composition . . . . . . . . . . . . . . . . . . . . . . . . 14-1

C. Accessory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

D. Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

E. Software, firmware diagram. . . . . . . . . . . . . . . . . 14-2

2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3

3. Configuration report (Test page) . . . . . . . . . . . . . . . . 14-6

4. Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-7

A. Major device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-7

B. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-7

C. Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-8

5. Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-9

A. Key operator program . . . . . . . . . . . . . . . . . . . . . 14-9

B. Jumper Setting. . . . . . . . . . . . . . . . . . . . . . . . . . 14-11

6. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-11

A. Printer driver setting and operation . . . . . . . . . . 14-11

7. Firmware version up . . . . . . . . . . . . . . . . . . . . . . . . 14-13

A. Necessary items. . . . . . . . . . . . . . . . . . . . . . . . . 14-13

B. Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-13

8. AR-NS2 installing procedure . . . . . . . . . . . . . . . . . . 14-13

9. AR-PK4 installing procedures . . . . . . . . . . . . . . . . . 14-14

A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-14

B. Check items . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-14

C. PS firmware ROM installation . . . . . . . . . . . . . . 14-14

D. PS printer utility software installation . . . . . . . . . 14-14

[15] OTHERS

1. Key operator program . . . . . . . . . . . . . . . . . . . . . . . . 15-1

A. Key operator program menu . . . . . . . . . . . . . . . . 15-1

2. Special tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2

[1] OUTLINE

1. Product features

No. Feature Content Employed technology

1 Compact, lightweight, A3

tandem engine High speed output Color: 17 PPM (A4/LT)

2 High-speed, first color copy Color: Within 11.7 sec

3 Manual paper feed capacity 300 sheets 64g/m

Heavy paper support 64 to 300g/m

Heavy paper duplex feed support

4 Improved user maintenance Paper jam process: 2 positions of open/close (sides) Paper jam control technology

5 Improved service

maintenance

670 x 676 x 787mm (26.4 x 26.6 x 31 inch)

85.5kg (185.5 lbs.) (Copier body + photoconductor + toner)

B/W: 26 PPM (A4/LT)

B/W: Within 8.0 sec A4, without pre-scan, RSPF not used, side paper exit, tray 1 used

64 to 200g/m

Toner supply: Cartridge replacement Mono-component wax-free toner Developing section: Mono-component development

eliminates the need for developer replacement. Drum section: Cartridge replacement Designed for easy maintenance Fusing section: Simplified structure by wax-free. The unit can

be disassembled simply by releasing the lock with the knob. Transfer section: One-touch extraction. Designed for easy

belt replacement. Color resist automatic adjustment:

Visual judgment by paper exit is automatically performed.

(17 lbs.) Development of a large capacity

(17 to 80 lbs.) (Manual paper feed tray) Oil-less fusing unit, paper feed/

(17 to 54 lbs.) (Face up paper exit)

Mono-component wax-free toner, LED printhead

Same document continusly on A4 (LT) plain paper in non offset mode.

LED printhead

manual feed tray

paper transport technology

Mono-component wax-free toner

Mono-component wax-free toner. Designed for easy maintenance

Designed for easy maintenance

Process control technology, which allows user adjustment.

2. Newly employed technology

Item Content Remark

1 LED printhead employed • Employment of the 4bit LED provides

16-gradation expressions for each of YMCK.

• Free from mechanical noises which are produced from the unit such as an LSU. Printing is started immediately without waiting for stabilization of the polygon motor speed.

• Lower power consumption than an LSU

2 Oil-less fusing system employed • Development of a new wax-free toner

• The wax-free fusing system provides a simplified structure and improved paper feed capability.

• Notes and remarks can be put on a copy image similar to normal page.

Resolution: 600dpi (Total dots: 7,424 dots)

AR-C172M OUTLINE 1 - 1

[2] CONFIGURATION

1. Product Line and options

A. Line of machines

Model name Composition

AR-C172M Copier/Printer model

B. Line of options

AR-D18N/Paper feed module

(3-stage paper feed desk)

AR-D17N/Paper feed module

(1-stage paper feed desk)

AR-F13/Saddle finisher

(Requires Duplex bypass/Inverter unit

(AR-RB1).)

AR-RB1/Duplex bypass/Inverter unit

(Requires Desk.)

AR-LC8/Large capacity tray

AR-D19N/Duplex module + Paper feed

module (2-stage)

(Requires Duplex bypass/Inverter unit

(AR-RB1).)

AR-PN1A, AR-PN1B, AR-PN1C, AR-PN1D/

Punch unit

(for saddle stitch finisher (AR-F13))

AR-U11M, AR-U15M/Sharpdesk license kit AR-PK4/PS3 expansion kit AR-FX10/Facsimile expansion kit

AR-C172M CONFIGURATION 2 - 1

AR-MM9/FAX memory (8MB) AR-FR23U/Data security kit

AR-TE3/Exit tray AR-SC2/Staple cartridge AR-NS2/Network scanner expansion kit

128/256MB expansion memory

(Local arrangement)

C. Machine configuration list

STD or ❍ (Yes) : Included in the set. (Included in the base engine.) OP : Option N/A or ✕ (No) : No support or no setup

Basic composition Copier/Printer/Scanner Remark

Supply system SRU AR drum cartridge × 4 ❍ AR toner cartridge × 4OP Printer controller board (Base memory: 128 MB) ❍ HDD ❍ Soft NIC ❍ ICU memory 256MB Fax-Box (Facsimile expansion kit) OP JOB SHIFTER ❍ LCC connection module ❍ RSPF ❍ Dehumidifier (Engine) For service kit Network scanner expansion kit OP

AR-C172M CONFIGURATION 2 - 2

D. Combination of options list

STD or ❍ (Yes) : Included in the set. (Included in the base engine.) OP : Option N/A or ✕ (No) : No support or no setup

Section Item

Automatic document feeder and scanning

Integrated scanner unit STD OC ✕ RSPF STD

Copier/Printer/

Scanner

Trial network scanner function STD Paper feed system/Duplex

One-stage tray

(Standard provision of the machine)

Manual paper feed tray

(Standard provision of the machine)

1-stage paper feed desk (AR-D17N)

STD

500 × 1 (80g/m 550 × 1 (64g/m 250 sheets (80g/m 300 sheets (64g/m 500 × 1 (80g/m 550 × 1 (64g/m

A 2-stage paper feed desk with duplex cannot be

∗

used.

3-stage paper feed desk (AR-D18N)

500 × 3 (80g/m2) (21 lbs.) 550 × 3 (64g/m

A 2-stage paper feed desk with duplex cannot be

∗

used.

2-stage duplex paper feed desk (AR-D19N)

Reverse bypass module (AR-RB1)

Requires a duplex bypass/inverter unit. / 3-stage paper feed desk cannot be used. Requires desk (3-stage/2-stage duplex paper feed desk)

Large capacity tray (AR-LC8) OP Requires 2-stage duplex paper feed desk Paper exit system Paper exit tray (AR-TE3) OP

Job shifter STD

Saddle finisher (AR-F13)

Requires a desk (3-stage/2-stage paper feed desk

with duplex) and a duplex bypass/inverter unit. Punch unit (AR-PN1A/PN1B/PN1C/PN1D) OP For saddle finisher Staple cartridge (AR-SC2) OP For saddle finisher

Electrical system Printer controller STD 7410: 400 MHz type

Scanner interface board STD Installed memory 128MB For printer board Soft NIC STD HDD (3.5 inch) STD 40GB PS3 expansion kit (AR-PK4)

Requires 512MB memory.

Product Key 128MB expansion memory ∗1 Local arrangement: For ICU or printer controller 256MB expansion memory ∗1 Local arrangement or AR-SM5: For ICU or printer

controller Network scanner expansion kit (AR-NS2)

Product Key

Requires memory expansion of 256MB or more. Sharpdesk license kit (AR-U11M/U15M) OP Various connection cables Not supported. Unavailable as an option (Use a commercially

available part.)

FAX system Fax controller (AR-FX10) OP

Fax memory (8 MB) (AR-MM9) OP

Other Data security kit (AR-FR23U) OP

∗1: The AR-SM5 (256MB) can be used. For the other memories, choose among commercially available ones (table below) and set.

Manufacture P/N Description

Kingston SHP32X64S133C3-B 256MB, PC133, DIMM

SHP16X64S133C3 128MB, PC133, SODIMM SHP16X64S133C3-B 128MB, PC133, DIMM SHP32X64S133C3 256MB, PC133, DIMM D1664A30 128MB, 168 PIN D3264A30 256MB, 168 PIN

Memory Experts MXAR2372128B 128MB, PC100 OR PC133, 168 PIN

MXAR2371256 256MB, PC100 OR PC133, 168 PIN MXAR2371128 128MB, PC100 OR PC133, 168 PIN MXARSM5 256MB, PC100 OR PC133, 168 PIN

RAM components MIMD1289A63N1621E16E 128MB, 168 PIN PC133

MIMD1289A63N3221H16E 256MB, 168 PIN PC133

IO DATA LP-S100-128M

LP-S100-256M

) (21 lbs.)

) (17 lbs.)

) (21 lbs.)

) (17 lbs.)

) (21 lbs.)

) (17 lbs.)

Remark

AR-C172M CONFIGURATION 2 - 3

2. Block diagram

Line

Finisher (Option)

FAX controller (Option)

Fusing/paper

exit section

Duplex bypass/ Inverter

(Option)

controller

unit

Printer

LED head

(writing)

section

(Y)

Photo-

conductor

section

(Y)

Developing

section

(Y)

RSPF unit

Image scanning (writing) section

(CCD PWB)

Image process section (MFP PWB)

Image process section 2 (ICU PWB)

Page memory

LED head

(writing) section

(M)

Photo-

conductor

section

(M)

Developing

section

(M)

LED head

(writing)

section

(C)

Photo-

conductor

section

(C)

Developing

section

(C)

Transfer section

Paper feed tray section 1

Duplex section (Option)

Paper feed tray section 1 (Option)

LED head

(writing)

section

(K)

Photo-

conductor

section

(K)

Developing

section

(K)

Operation section

PCU PWB

DC power unit

Paper

transport

section

AC power unit

Large capacity

paper feed tray

unit (Option)

Paper feed tray section 2 (Option)

Paper feed tray section 3 (Option)

AR-C172M CONFIGURATION 2 - 4

[3] SPECIFICATIONS

1. Basic specifications

A. Base engine

(1) Type

Type Desk-top Color support Full color

(2) Engine speed

Paper size

A3W (12 x18) 5 ppm 5 cpm 7 ppm 7 cpm A3, 11 x17, 8K 8 ppm 8 cpm 13 ppm 13 cpm B4, 8.5 x14, 8.5 x13 10 ppm 10 cpm 15 ppm 15 cpm

8.5 x11,A4 17 ppm 17 cpm 26 ppm 26 cpm A4R, 8.5 x 11R 12 ppm 12 cpm 19 ppm 19 cpm B5,16K 17 ppm 17 cpm 26 ppm 26 cpm B5R, 7.25 x 10.5R,

16KR A5, 8.5 x 5.5 17 ppm 17 cpm 26 ppm 26 cpm A6R (Normal paper) 13 ppm 13 cpm 13 ppm 13 cpm Transparency

(Speed *

)

Transparency (Image quality)

Heavy paper 1 * (B5, A4, 8.5 x 11, 16K , A5, 8.5 x 5.5)

Heavy paper 1 *

(Except Envelope & above size)

Heavy paper 2 *

(B5, A4, 8.5 x11, 16K , A5, 8.5 x 5.5)

Heavy paper 2 *

(Except Envelope & above size)

Envelope *

(all size) 5 ppm 5 cpm 6 ppm 6 cpm

EXTRA size 5 ppm 5 cpm 7 ppm 7 cpm

∗ The “cpm” (ppm) is copy speed. The speed is measured with

SOPM operation (same document continuously) and with the

offset off. * 1: Type of envelopes: COM-10, Monarch, DL, C5 * 2: The fastest speed * 3: Heavy paper 1: 106 to 200g/m

Heavy paper 2 : 201 to 300g/m

(3) Engine composition

Photoconductor kind

Copying method Electrostatic copying system employing the

LED available print area

Developing system Contact, non-magnetic 1-component

Charging system Saw teeth scorotron corona charging Transfer system Transfer belt structure direct transfer

Cleaning system Counter blade cleaning system Fusing system Pressure roller fusing system Fusing unit life 2 years or 100K

OPC (Drum diameter: φ30mm x 4)

LED writing head 301 mm

development

system

Color B/W

Print Copy Print Copy

12 ppm 12 cpm 19 ppm 19 cpm

17 ppm 17 cpm 17 ppm 17 cpm

13 ppm 13 cpm 13 ppm 13 cpm

6 ppm 6 cpm 6 ppm 6 cpm

13 ppm 13 cpm 13 ppm 13 cpm

6 ppm 6 cpm 6 ppm 6 cpm

(28 lbs to 54 lbs).

(54 lbs to 80 lbs).

Fusing unit replacement

Mode switching speed (A → B)

Replaceable 30min after turning off the power

Normal

Heavy

paper

paper 1

paper 2

– 30 sec 40 sec 40 sec

OHP

paper

Heavy

30 sec – 40sec 40 sec

Heavy

40 sec 10 sec – 50 sec

paper 1

paper 2

OHP

45 sec 10 sec 20 sec – Oil supply Oil-less system Waste toner

process Multi print speed

(at Max.)

Self collection of each toner cartridge Waste toner box collection for transfer belt

B/W: 26 ppm (A4/Letter) Color: 17 ppm (A4/Letter)

[In the case of manual paper feed] B/W: 26 ppm (A4/Letter)

Color: 17 ppm (A4/Letter) Shifter Standard (Default setting: Offset OFF) Dehumidifier Service kit

(4) Shifter

Type Shifter Paper weight 64 to 200g/m Paper size

(64 to 200g/m

Non offset mode

)

(Simple load)

Offset mode A3 to A6R,

Productivity Non offset mode: Color 17 sheets,

Offset mode: Color 16 sheets,

Offset width 30mm Alignment *

Non offset mode

Offset mode

∗1: When A4/Letter recommended paper is used.

(17 to 54 lbs)

A3W to A6R, 12" x 18" to 8.5" x 5.5", 8K, 16K, 16KR

11" x 17" to 8.5" x 5.5", 8K, 16K, 16KR

B/W 26 sheets

B/W 24 sheets

Extending FR shift

Must not fall from

——

the tray. Within

50mm

Within ± 10mm

Between

jobs

10mm or more

(5) Engine resolution

Resolution Writing: 600dpi x 600dpi Smoothing None Gradation When

copying

When printing

∗1: Dither matrix allows printing in 1-pixel, 256-gradation (8bit). ∗2: For 4bit mode, an expansion memory of 128MB or more is

required in the printer controller.

Color Writing: 1 pixel 16 gradations for

each color (4 bit) *

E-sort mode: 1 pixel 2 gradations (1bit)

B/W Writing: 1 pixel 2 gradations

(1bit)

Color Writing:

1 pixel 2 gradations (1 bit) 16 gradations for each color

1 *2

(4 bit) *

B/W Writing:

1 pixel 2 gradations (1bit) 16 gradations (4 bit) *

AR-C172M SPECIFICATIONS 3 - 1

(6) Warm-up

Warm-up time 99sec or less Pre-heat function Yes

(7) Jam recovery time

With the left cover and front cabinet open

With the right cover open About 8 sec

About 60 sec Left for 60sec

Normal condition

(8) Image chip (Printable area)

Full size Total circumference 4mm ± 2mm

∗ In A3/11" x 17" full image copy, there is no image chip in A3/

WLT image.

∗ When outputting cut position marks, printing can be made in the

range of image chip specification.

∗ When using RSPF, however, A3 full image copy cannot be

made.

Only when A3 full image is outputted, 6mm or less in total.

(9) Printer controller

Type Built-in CPU Power PC 7410-400 MHz Memory 128MB (std.) max. 640MB Add. memory slot 2 slot Font 80 fonts (PCL5-c), 136fonts (PS3: option) NIC Software NIC is standard

(10) Power source

Voltage 100 – 127 V Frequency 50/60 Hz Power cord Inlet type

• For optional stand (for AC power supply / Fax Box)

∗ Nighttime mode should be supported.

(11) Power consumption

Max. power consumption 1.5 kW Sleep mode 80 W or less

(12) Noise/Ozone

Noise Operating B/W 63 dB or less (First)

Color 63 dB or less (First) Stand-by 55 dB or less Sleep 40 dB or less

Ozone 0.02 g/m

or less

(13) External dimensions

External dimensions 670 x 676 x 787 mm

(26.4 x 26.6 x 31 inch)

(14) Weight

Weight

Copier body: 75.5 kg (166.4 lbs.) Copier body + photoconductor: 78.5 kg (173.1 lbs.) Copier body + photoconductor + toner: 85.5 kg (188.5 lbs.)

(15) Machine occupying dimensions

Machine occupying dimensions: (With manual feed tray/paper exit tray extended)

1349 x 676 mm (53.1 x 26.6 inch)

B. Paper feed unit

(1) Machine paper feed tray

Paper feed system 1-stage tray Paper feed size AB series: A3, B4, A4, A4R, B5, A5,

Paper feed capacity *

Weight of paper suitable for paper feed

Paper kind Normal paper (including recommended

Paper size detection Slide lever detection Paper size selection User selection Dehumidifier Service kit Remaining quantity

detection Initial size when

shipping Tray attach/detach Possible Universal support Universal tray (free size)

*1: 1g/m2 = 0.265625 lbs (applied to the flowing subjects)

(2) Manual feed tray (Bypass tray)

Transport reference Center reference Paper feed capacity 250 sheets (80 g/m

Paper size A3W to A6R Paper weight 64 to 300 g/m

Paper kind Normal paper (including recommended

Paper size detection Inch series: 12" x 18", 11" x 17",

Manual feed size setup

∗ Detection of 8.5" x 14" can be changed to detection of 8.5" x 13"

(216 mm x 330 mm) by the diag setting.

8.5" x 11", EXTRA Inch series: 11" x 17", 8.5" x 14",

8.5" x 13", 8.5" x 11", 8.5" x 11"R,

8.5" x 5.5", A4, EXTRA (EXTRA setting) AB tab setting section: A3, B4, A4, A4R, B5, B5R, A5, EXTRA Inch tab setting section:

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

8.5" x 11", 8.5" x 11"R, 8.5" x 5.5",

7.25” x 10.5”R, EXTRA

550 sheets (64 g/m2 (17 lbs.) paper) 500 sheets (80 g/m

(21 lbs.) paper,

C. Paper exit unit

(1) Face down paper exit tray (Top section)

Paper exit position/system Machine top face down paper exit Paper exit capacity 500 sheets (A4/LT recommended

paper for color)

Paper size A6R (Postcard), 8.5" x 5.5" to A3W

Paper weight 64 to 200g/m Paper kind Normal paper (including

Remaining quantity detection

Discharged paper full detection

(2) Face up paper exit tray (sides)

Paper exit position/system Machine side face up paper exit Paper exit capacity 250 sheets (A4/LT recommended

Paper size All sizes which are fed Paper weight 64 to 300 g/m Paper kind All sizes which are fed (except for

Remaining quantity detection

Discharged paper full detection

(3) Face down paper exit tray (side)

(With the reverse unit installed)

Paper exit position/system Machine side face down paper exit Paper exit capacity 250 sheets (A4/LT recommended

Paper size A3W, A3, B4, A4, A4R, B5, B5R,

Paper weight 64 to 200 g/m Paper kind Normal paper* Remaining quantity

detection Discharged paper full

detection

*1: Recommendable color paper, standard paper, recycled paper,

printed paper, perforated paper, color paper, letterhead

∗ A3W: Can not used shifter

(17 to 54 lbs.)

recommended paper for color), heavy paper 1 (106 to 200 g/m

(28 to 54 lbs.)) No

Yes

paper for color)

(17 to 80 lbs.)

OHP sheets) No

Yes

paper for color)

A5, 12" x 18", 11" x 17", 8.5" x 14",

8.5" x 13", 8.5" x 11", 8.5" x 11"R, Executive-R, 8.5" x 5.5"

(17 to 54 lbs.)

Yes

(4) Face up paper exit tray (side)

(With the reverse unit installed)

Paper exit position/ system

Paper exit capacity 250 sheets (A4/LT recommended paper

Paper size A3W to A6R, 12" x 18" to 8.5" x 5.5",

Paper weight 64 to 300g/m Paper kind Normal paper ∗

Remaining quantity detection

Discharged paper full detection

*1: Recommendable color paper, standard paper, recycled paper,

printed paper, perforated paper, color paper, letterhead

Machine side face up paper exit

for color)

DL, C5, COM-10, Monarch

(17 to 80 lbs.)

, OHP, heavy paper

(106 to 300 g/m

(28 to 80 lbs.)), all other paper which is supported by the machine.

Yes

D. Scanner section

(1) Resolution, gradation

Scan resolution (dpi) 600 x 600dpi

600 x 300dpi (B/W mode only, used RSPF and 100% copy ratio)

Scan speed (opm) (Copy mode)

Scan gradation 256 gradations for each color

Exposure lamp Xenon lamp without electrode tube Output gradation 8bit for each color

(2) Document table

Scan range 297 x 432 mm or more (A3/WLT full image

Document reference position

Detection Yes Detection size Automatic detection

(600 x 600dpi mode) Color 8 opm, B/W 21 opm: A4/LT size (600 x 300dpi mode) B/W 26 opm: A4/LT size

2 gradations for scanner B/W mode only

1bit for Scanner B/W mode only

scan) Center reference

Inch series

<INCH-1: Default> 11" x 17", 8.5" x 14", 8.5" x 11",

8.5" x 11"R, 5.5" x 8.5" <INCH-2>

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

8.5" x 11"R, 5.5" x 8.5"

AB series

<AB-1: Default> A3, B4, A4, A4R, B5, B5R, A5

<AB-2> A3, 8.5" x 13" (216 x 330), A4, A4R, B5, B5R, A5

Manual

Yes doc size selection

AR-C172M SPECIFICATIONS 3 - 3

2. Functional specifications

A. Specifications of copy functions

(1) Copy speed (Continuous copy speed)

Color / B/W Color B/W

Print/Copy Print Copy Print Copy

Paper size

A3W (12

A3 (11" x 17") 8ppm 8 cpm 8 cpm 8 cpm 13 ppm 13ppm 13 ppm 13ppm B4 (8.5

x 14" / 8.5" x 13") 10 ppm 10 cpm 10 cpm 10 cpm 15 ppm 15 ppm 15 ppm 15ppm

" (A4)

8.5" x 11 A4R (8.5

B5 17ppm 17 cpm 17 cpm 17 cpm 26 ppm 26 cpm 26 cpm 26 cpm B5R (7.25 A5 (8.5" x 5.5") 17ppm 17 cpm 17 cpm 17 cpm 26 ppm 26 cpm 26 cpm 26 cpm A6R (Normal paper) 13ppm 13 cpm 13 cpm 13 cpm 13 ppm 13 ppm 13 ppm 13ppm OHP (Speed * OHP (Image quality) 13 ppm 13 cpm 13 cpm 13 cpm 13 ppm 13 cpm 13 cpm 13 cpm Heavy paper 1 *

8.5" x 11", A5, 5.5" x 5.5") Heavy paper 1 *

other sizes than the above) Heavy paper 2 *

11", A5, 8.5" x 5.5") Heavy paper 2

other sizes than the above) Envelope Special size 5 ppm 5 ppm 5 ppm 5 ppm 7ppm 7 cpm 7 cpm 7 cpm

Magnification

ratio

x 18") 5 ppm 5 cpm 5 cpm 5 cpm 7 ppm 7 cpm 7 cpm 7 cpm

x 11"R) 12 ppm 12ppm 12 ppm 12 ppm 19 ppm 19 ppm 19 ppm 19ppm

x 10.5"R) 12 ppm 12 ppm 12 ppm 12 ppm 19 ppm 19 ppm 19 ppm 19ppm

) 17ppm 17 cpm 17 cpm 17 cpm 17 ppm 17 cpm 17 cpm 17 cpm

(B5, A4,

(Envelope*3and

(B5, A4, 8.5" x

(Envelope*3 and

(All kinds) 5ppm 5ppm 5ppm 5ppm 6ppm 6 cpm 6 cpm 6 cpm

ppm (print per minute): print per minute when printing two or more pages of a single document. cpm (copy per minute): copy per minute when scan multi copying of a single document. When offset function OFF *1: Max. speed *2: Heavy paper 1: 106 to 200g/m *3: Kind of envelopes: COM10, Monarch, DL, C5

Normal (100%)

17ppm 17 cpm 17 cpm 17 cpm 26 ppm 26 cpm 26 cpm 26 cpm

13ppm 13 cpm 13 cpm 13 cpm 13 ppm 13 cpm 13 cpm 13 cpm

6 ppm 6 cpm 6 cpm 6 cpm 6ppm 6 cpm 6 cpm 6 cpm

13ppm 13 cpm 13 cpm 13 cpm 13 ppm 13 cpm 13 cpm 13 cpm

6 ppm 6 cpm 6 cpm 6 cpm 6ppm 6 cpm 6 cpm 6 cpm

Reduction

(25%)

Normal (100%)

Enlargement

(400%)

Normal (100%)

Reduction

(25%)

(28 lbs to 54lbs), heavy paper 2: 201 to 300g/m2 (54 lbs to 80lbs)

Normal (100%)

Enlargement

(400%)

(2) First copy time

a. To side tray of main unit face up, with APS off and group

mode on

Platen/ RSPF B/W Color Platen Within 8.0 sec. (A4/LT) Within 11.7 sec. (A4/LT) RSPF Within 10.5 sec. (A4/LT) Within 14.0 sec. (A4/LT)

b. To top of main unit face down, with APS off and group mode

Platen/ RSPF B/W Color Platen Within 10.2 sec. (A4/LT) Within 15.0 sec. (A4/LT) RSPF Within 13.0 sec. (A4/LT) Within 17.0 sec. (A4/LT)

c. With rotation copying. To side tray of main unit face up, with

A4R original and A4 paper

Platen/ RSPF B/W Color Platen Within 12.0 sec. (A4/LT) Within 17.0 sec. (A4/LT) RSPF Within 14.0 sec. (A4/LT) Within 19.0 sec. (A4/LT)

d. With rotation copying. To top of main unit face down, with

A4R original and A4 paper

Platen/ RSPF B/W Color Platens Within 14.5 sec. (A4/LT) Within 19.5 sec (A4/LT) RSPF Within 16.0 sec. (A4/LT) Within 22.0 sec. (A4/LT)

Condition: The transfer belt positions are B/W positions.

(3) Job speed

a. For Group mode

Mode

S to S

(10pages

X 1set)

S to D

(10pages

X 5sets)

D to D (5pages X 5sets)

General copy condition:

Original size = A4 or (8.5" x 11"), Output to side tray by group mode, Transfer belt position = B/W position, Paper feeding from Tray 1, Not using APS, using RSPF, copy ratio: 100%

b. For E-sort mode ON

Mode

S to S

(10pages

X 1set)

S to D

(10pages

X 5sets)

D to D (5pages X 5sets)

General copy condition:

Original size = A4 or (8.5" x 11"), Output to side tray by E-sort mode, Transfer belt position = B/W position, Paper feeding from Tray 1, Not using APS, using RSPF, copy ratio: 100%

B/W (1-bit) Color Condition by mode

600 x

1-bit or

600 x

600dpi

300dpi

20.5 cpm

20.0 cpm

B/W (1-bit) Color Condition by mode

600 x

600dpi

300dpi

20.0 cpm

18.0 cpm

26.0 cpm

20.0 cpm

600 x

25.5 cpm

20.0 cpm

19.0 cpm

4-bit

1-bit or

4-bit

1-bit

1st copy Config

600dpi

12.0 Exclusive

cpm

14.0

cpm

Inclusive

14.0

cpm

600 x

1st copy Config

600dpi

12.0 Exclusive

cpm

13.5

cpm

Inclusive

13.0

cpm

RSPF+bypass module with inverter unit

RSPF+Paper deck (2trays +ADU) +bypass module with inverter unit +512MB memory

RSPF+bypass module with inverter unit

RSPF+Paper deck (2trays +ADU) +bypass module with inverter unit +512MB memory

AR-C172M SPECIFICATIONS 3 - 4

(4) Continuous copy

Multi max. number 999 sheets

(Adjustable with key operator pogram)

(5) Resolution

Scan resolution 600 x 600 dpi

Writing resolution 600 x 600 dpi

600 x 300dpi (B/W copy only, used RSPF and 100%copy ratio)

(6) Copy document

Document size Max. A3 (11” x 17”) Document kind Sheet/book document

(7) Copy magnification ratio

Copy magnification ratio

Custom magnification ratio registration

Zoom 50 to 200% (increment of 1% for 50 to

Independent zoom Yes (OC: 25, 400%, 50 to 200%,

AB series: 25%, 50%, 70%, 81%,

86%, 100%, 115%, 122%, 141%, 200%, 400%

Inch series: 25%, 50%, 64%, 77%,

100%, 121%, 129%, 200%, 400% (400% only in OC mode)

AB series/Inch series: 4 keys (2E/2R)

200%)

RSPF: 50 to 200%, increment of 1%)

(8) Density, copy image process

Exposure mode

Color enhancement (OC only)

Manual steps 9 steps Smoothing

process Toner save

mode

Display Color

Auto Text/Printed Photo

Text Text Text/Printed

Photo Text

/Photograph Printed Photo Printed Photo Photograph Photograph Map Map Copy document Copy document (Effective for Text, Text/

Yes (Effective for Text, Text/Printed, Text/Photograph, Printed, Photograph, Map)

Yes (for B/W)

(Hexadecimal)

Default ME3 Pre-scan: No

Text/Printed Photo

Text/Photograph

Printed, Printed)

B/W (binary)

auto:

Text Pre-scan: No

(9) Copy functions

Functions APS Yes

AMS Yes ACS (Auto Color Selection) No Paper type select Yes Free size input Document: Yes

Coy Protection Technology (CPT)

Auto tray switching Yes Rotation copy Yes (A4/8.5 x 11/B5

Rotation sort No Electronic sort (E-RDH) Yes (Color / B/W) Copy reservation No Program call/registration Yes (Max. 10 items) Proof copy No Pre-heat Yes (Conditions are set

Auto power shut off Yes (Conditions are set

Department management Yes (200 departments) Key operator program Yes Communication support

(RIC) Process control Yes Card counter support No Coin vendor support Yes

Special functions

Binding margin Yes Edge erase/Center erase Yes 1 set 2 copy Yes (OC mode only) Cover insertion Yes OHP insert paper Yes (White paper

Insert paper insertion (Index)

Centering Yes Multi shot (N in 1) Yes (Ruled line ON/

Center binding Yes (Option) Duplex copy direction

switch

Negative/Positive conversion

B/W inversion Yes (B/W only) Photo repeat Yes (2/4/8/12/16/24)

RGB adjustment Yes Color balance Yes Color Gamma adjustment Yes (OC only) Brightness adjustment Yes Contrast adjustment No Sharpness adjustment Yes Mirror image Yes Single color 6 colors (R, G, B, C, M,

Enlargement continuous copy

Background erase Yes A3 wide copy Yes (OC only) Auto color calibration Yes Auto registration Yes

Paper: Yes Yes

paper size only)

by the key operation.)

Yes

insertion only) No

OFF allowed)

Option ∗ Requires Duplex

desk, Duplex pass/ Inverter.

10 is for visiting cards.

Y) Yes (OC only)

AR-C172M SPECIFICATIONS 3 - 5

(10) Memory limitation matrix

Combination Standard Expansion 1 Expansion 2

ICU PWB

Copier specifications

Mode

Electronic

Copy Single Color

(4 bit)

Color

(1 bit)

B/W Yes to A4 (8.5" x 11") 400 surfaces 400 surfaces 680 surfaces

Copy Duplex Color

(4 bit)

Color

(1 bit)

B/W Yes to A4 (8.5" x 11") 400 surfaces 400 surfaces 680 surfaces

B/W (Electronic sort): Equivalent to "TEST SHEET B." SOPM: Scan Once Print (Copy) Many Color (Electronic sort): [JBIG], [A3: 2 sheets], *1: Equal to “What’s color”, *2: Equal to “Fruits- Map”, *3: Equal to “Photo chart” Note: 1) Interrupt copy is available in Electronic sort mode, only 1 set.

(Duplex copy, staple, Multi shot (N in 1) and Multi-enlargement are not available.)

2) Color E-sort as Interrupt copy is not available.

Standard (Slot 1) 256MB 256MB 256MB

Expansion memory (Slot 2) — 128MB 256MB

Total memory capacity 256MB 384MB 512MB

sort

Document size

Upper limit of document scan quantity

(number of surfaces)

No to A4 (8.5" x 11") SOPM SOPM SOPM

B4, A3

SOPM SOPM SOPM

(8.5" x 14", 11" x 17")

A3W (12" x 18") SOPM SOPM SOPM

Yes to A4 (8.5" x 11") 100 surfaces*

37 surfaces* 21 surfaces*

B4, A3

(8.5" x 14", 11" x 17")

50 surfaces* 18 surfaces* 10 surfaces*

A3W (12" x 18") 41 surfaces*

15 surfaces*

8 surfaces*

B4, A3

200 surfaces 200 surfaces 340 surfaces

100 surfaces*

37 surfaces* 21 surfaces* 50 surfaces* 18 surfaces* 10 surfaces* 41 surfaces* 15 surfaces*

8 surfaces*

180 surfaces*

64 surfaces* 37 surfaces* 90 surfaces* 32 surfaces* 18 surfaces* 74 surfaces* 26 surfaces* 15 surfaces*

(8.5" x 14", 11" x 17")

A3W (12" x 18") 165 surfaces 165 surfaces 280 surfaces

No to A4 (8.5" x 11") SOPM SOPM SOPM

B4, A3

No SOPM SOPM

(8.5" x 14", 11" x 17")

A3W (12" x 18") No paper pass allowed

Yes to A4 (8.5" x 11") 100 surfaces*

37 surfaces* 21 surfaces*

B4, A3

(8.5" x 14", 11" x 17")

50 surfaces* 18 surfaces* 10 surfaces*

100 surfaces*

37 surfaces* 21 surfaces* 50 surfaces* 18 surfaces* 10 surfaces*

180 surfaces*

64 surfaces* 37 surfaces* 90 surfaces* 32 surfaces* 18 surfaces*

A3W (12" x 18") No paper pass allowed

B4, A3

200 surfaces 200 surfaces 340 surfaces

(8.5" x 14", 11" x 17")

A3W (12" x 18") No paper pass allowed

B. Scanner functon (Option)

The scanner function is enabled by canceling the product key. This function requires installation of an expansion memory of 256MB and a scanner expansion board.

(1) PUSH SCAN

PUSH SCAN is used to send scan data to PC or a file server by the operation on the machine operation panel.

PUSH SCAN has the following three modes:

• SCAN TO E-MAIL (SMTP) Scan data area attached to an E-mail.

• SCAN TO FILE SERVER (FTP) Scan data are sent to a file server by FTP. The URL can be e-mailed simultaneously.

• SCAN TO DESKTOP (FTP) Scan data are sent to the desktop user. (Sharpdesk and the net-

work scanner tool are required.)

AR-C172M SPECIFICATIONS 3 - 6

a. Operation flow (PUSH SCAN)

1. Push [IMAGE SEND] button on the operation panel to switch to the main menu of the image send mode.

2. Press [ADDRESS DIRECTORY] or [E-MAIL ADDRESS] button to set a destination. (The local address book cannot be retrieved.)

3. According to the necessity, set the sender with [SENDER LIST] button.

4. According to necessity, select the scanning conditions with [EXPOSURE], [RESOLUTION], [FILE FORMAT] and [ORIGINAL] buttons.

5. Press the color start key or the black-and-white start key to start scanning. When the color start key is pressed, scanning is made in color. When the black-and-white start key is pressed, scanning is made in black and white.

Engine operates according to the setting made, such as: LED of the color start key is turned on or LED of mono start key is turned on.

b. Basic operations (PUSH SCAN)

Network protocol TCP/IP, SMTP, FTP, (HTTP) Trial mode required Supported by the service diag.

The upper limit is 500 scans (surfaces). Without canceling the product key, scanning functions are enabled. 500 counts in total of color and black-and-white scans. There is no counter for trial. Resolution level: [lowest] or [lower] key only.

Destination registration 500 items of scan to E-mail from Embedded Web Server + group, and 100itmes of Scan to FTP + Desktop

(Max. 600 items can be registered.) Scan to E-mail and group can be registered from the operation panel. A destination name can be set with max. 18 characters in two bytes (or 36 characters in one byte).

An E-mail address can beg set with max. 50 characters in one byte. Address book The static address book stored in MFP is supported. Destination select Selected from the operation panel.

Selection of two or more destinations is allowed. (Only Scan to E-mail)

Sending to temporary users can be made.

CC: / BCC: Send enable Sender select Select from the list of senders (20) on the operation panel.

If it is not set, the default which is set by Web is used.

Setting can be made from the key operator program. Image setup Image quality setup Color (RGB, each 8bit), Monochrome binary (1bit)

Binary system Error diffusion

Text/photo area separation Automatic

Moire reduction mode Yes

Color enhancement mode N/A

Density Automatic (Monochrome only. For color, same as density 3 manual.)

Manual (9 steps: 1 to 5, 0.5 increment) Default: 3

Resolution Color Monochrome

Low 2 100 dpi x 100 dpi 150 dpi x 150 dpi Low 1 150 dpi x 150 dpi 200 dpi x 200 dpi (Default) Normal 200 dpi x 200 dpi 300 dpi x 300 dpi High 1 300 dpi x 300 dpi 400 dpi x 400 dpi High 2 600 dpi x 600 dpi 600 dpi x 600 dpi The above resolutions are displayed on the panel. There is no optional setting of

resolution.

Document Document arrangement Single surface document

Duplex document (side bind) Duplex document (top bind)

Image rotation 0°

90° (A document is rotated 90 degrees to be set. Used mainly for portrait image scan of Legal, B4, A3. etc.) Note: 600 x 600dpi A3 size full color scan: 90-degree image rotate every time.

Document detection size Automatic detection (The automatic detection allowable size can be set by the

key operation.) Manual setup (Automatic detection cancel: Fixed sizes) Manual setup (Automatic detection cancel: Other than fixed sizes) AB series: mm setting, inch series: inch setting

Document type/ Image

quality type

Text Text/Printed Photo Text/Photograph Printed Photo ∗ Photograph ∗

∗: Only in manual density adjustment

Map ∗ (The default: Text mode / Automatic)

AR-C172M SPECIFICATIONS 3 - 7

File format B/W (1bit) TIFF-Non compression (Multi page allowed)

Color (RGB x 8bits) PDF High compression (Multi page allowed)

Filed by each page ON / OFF

Process when the specified value is exceeded The specified size can be set with the key operator program. When the size

OC multi scan Documents of two or more pages can be set as one file from the platen. (Except

Job history The job history is not recorded. Utility Sharpdesk V3.0 or later LDAP Yes JOB restriction The scanner mode is disabled during printing. After completion of a print job, it is

User Authentication Yes POP before SMTP Yes Address Book Non Anonymous for NST Yes

TIFF-G3-1dim (Multi page allowed) TIFF-G4 (Multi page allowed) PDF-Non compression (Multi page allowed) PDF-G3-1dim (Multi page allowed) PDF-G4 (Multi page allowed)

PDF Medium compression (Multi page allowed) PDF Low compression (Multi page allowed) JPEG High compression (Multi page inhibited) JPEG Medium compression (Multi page inhibited) JPEG Low compression (Multi page inhibited) Multi page inhibited: Means images on two or more pages cannot be sent as one file. They can sent or saved as two or more attached files.

(In JPEG, fixed to ON.)

exceeds the specified level, scan is cancelled.

for JPEG)

enabled. (Print controller restriction)

(2) Scanner function memory restriction matrix

Combination Standard Expansion-1 Expansion-2

ICU PWB

Network scan

specifications

Printer

controller

PWB

Trial

mode

PUSH scan

Normal

mode

(Option)

∗: Expansion memory must be installed to both of the Copier ICU and the Printer board.

Standard (Slot 1) 256 MB 256 MB 256 MB

Expansion memory (Slot 2) — 128 MB 256 MB

Total memory capacity 256 MB 384 MB 512 MB

Combination Standard Expansion-1 Expansion-2 Expansion-3 Expansion-4

Standard (Onboard) 128 MB 128 MB 128 MB 128 MB 128 MB Expansion memory (Slot 1) — 128 MB 256 MB 256MB 256 MB Expansion memory (Slot 2) —— — 128MB 256 MB

Total memory capacity 128 MB 256 MB 384 MB 512 MB 640 MB

Color

Monochrome

Color ✕✕

Monochrome ✕✕

❍

150dpi or less

❍

200dpi or less

❍

300dpi or less

❍ (∗)

600dpi or less

❍

600dpi or less

AR-C172M SPECIFICATIONS 3 - 8

C. Reversing single pass feeder

Type RSPF (Reversing single pass feeder) Document set

direction Document

reference position

Document paper feed reference

Document transport system

Kinds of out-ofspecification documents

Document load capacity

Document detection Yes/No

Detection size AB-1/

Document inversion

Document weight 56 to 90g/m Stream feeding

mode Mixed-load

documents Document tray

guide display Power supply From main unit (26.4 W) Dimensions (W x D x H) 583 x 435 x 133 mm Weight Approx. 5.4 kg

Face up reference

Center reference

Upper take-up reference (1 to N paper feed reference)

Sheet through system

OHP, perforated documents, photograph, catalogue

40 sheets (Thickness 4mm or less. For 90g/m

Yes (Size detection on the document tray, traveling detection)

AB-3 AB-2 A3, 216 x 330, A4, A4R, B5, B5R,

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

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

Selection between 8.5" x 13" and 8.5" x 14" can be made by the user setting.

Yes (However, 8.5" x 5.5" is inhibited.)

Yes (Standby 5 sec)

Mixed-load paper feed: Inhibited Random paper feed: Inhibited

A3/A4, 11, B4/B5, 8.5, A4R/A5, B5R, A5R,

5.5

, 30 sheets can be set.)

A3, B4, A4, A4R, B5, B5R, A5

8.5" x 11"R, 8.5" x 5.5"

(15 to 24 lbs.)

3. Environment conditions

A. Operating environment conditions

Humidity

˚ ˚

Temperature

B. Transit environment conditions

Humidity

˚ ˚

Temperature

C. Supply storage environment conditions

Humidity

D. Standard temperature and humidity

Temperature 20 to 25°C (68 to 77°F) Humidity 65 ±5%

AR-C172M SPECIFICATIONS 3 - 9

–5˚ ˚

Temperature

[4] CONSUMABLE PARTS

1. Supply system table

A. European Subsidiary

No. Item Model Name Content Life

1 Toner Cartridge

(Black)

2 Toner Cartridge

(Cyan)

3 Toner Cartridge

(Magenta)

4 Toner Cartridge

(Yellow)

5 Drum Cartridge AR-C26DUN Drum Cartridge

6 Drum AR-C26DMN OPC Drum x 1 50k Common

7 Main Charger Kit AR-C26MKE Charger Unit x 1 50k Common

AR-C26TBN Toner Cartridge (Black) with IC Chip

(Toner ; Net 525g)

AR-C26TCE Toner Cartridge (Cyan) with IC Chip

(Toner ; Net 315g)

AR-C26TME Toner Cartridge (Magenta) with IC Chip

(Toner ; Net 315g)

AR-C26TYE Toner Cartridge (Yellow) with IC Chip

(Toner ; Net 315g)

(Drum/Unit Parts included) Color identification seal (C/M/Y/Bk) x 1 each

Cleaning Blade x 1 Toner Receiving Seal x 1

x 1 16.7k Common

x 1 11k Common

x 1 50k Common

Commonality with

other host machines

(AR-C170) (AR-C262)

(AR-C260) (AR-C170) (AR-C262)

(AR-C170) (AR-C262)

(AR-C260) (AR-C170) (AR-C262)

Remarks

* Life : A4 size

at Area Coverage 6%

* Life : A4 size

at Area Coverage 5%

* Life : A4 size

at Area Coverage 5%

* Life : A4 size

at Area Coverage 5%

2. Consumables (kit, unit)

Part name Model name Content Life

1 Upper heat roller kit AR-C26UH Upper heat roller x 1 100K *1

Heat roller 60T gear x 1 Upper heat roller bearing x 2 Thermistor x 1 Upper heat roller stopper x 2

2 Lower heat roller kit AR-C26LH Lower heat roller x 1 100K *1

Lower heat roller bearing x 2 Thermistor x 1 Lower heat roller stopper x 2

Fusing separation pawl lower x 2 3 Transfer belt kit AR-C26TT Transfer belt x 1 100K *1 4 Transfer roller kit AR-C26TX Transfer roller x 4 100K 5 Transfer waste toner tank unit AR-C26HB Transfer waste toner tank unit x 1 100K 6 Filter kit AR-C26FL Ozone filter A x 1 50K

Ozone filter B x 1 7 Saddle staple cartridge AR-SC2 — 5 Fusing unit AR-C26FU (230V heater lamp)

AR-C26FU1 (120V heater lamp) AR-C26FU2 (100V heater lamp)

6 Transfer belt unit AR-C26TU Transfer unit for servicing 100K *1

Fusing unit for servicing

(including upper/lower heater lamps)

*1: Replace at 100K or within 2 years

AR-C172M CONSUMABLE PARTS 4 - 1

3. Photoconductor cartridge, toner cartridge

A. Lot number identification and the term of validity

(1) Photoconductor

(1) Alphabet

(2) Figure

(3) Figure or X, Y, Z

(4) (5) Figure

(6) Alphabet

(1) (2) (3) (4) (5) (6)

The term of validity: 36 months from the production day (month).

(2) Photoconductor cartridge

(1) Figure

(2) Figure

(3) Alphabet

(4) Alphabet

(5) (6) Figure

(7) Figure or X, Y, Z

Indicates the model support code.

Indicates the end digit of the packing year.

Indicates the packing month. (X= October, Y= November, Z= December)

Indicates the packing day.

Indicates the production division.

Version No.

The end digit of the year.

Production code (B for SOCC)

Destination code

Production day

Indicates the production month. (X= October, Y= November, Z= December)

(1) (2) (3) (4) (5) (6) (7)

The term of validity: 36 months from the production day (month).

(3) Toner cartridge

(1)

(4) (5) (6) (7)

The term of validity: 24 months from the production day (month).

(2) (3)

(1) Alphabet or figure

Unit code

(2) Alphabet

Destination code

(3) Alphabet

Skating

(4) Alphabet

Production site code

(5) Figure

Serial number (5 digits)

(6) Figure

Production year, month, day (6 digits)

(7) Alphabet

Version No. (A ~ sequentially revised)

AR-C172M CONSUMABLE PARTS 4 - 2

[5] UNPACKING AND INSTALLATION

1. Installing (use) conditions

Before installing the machine, check that the following installing (use) conditions are satisfied.

If the installing (use) conditions are not satisfied, the machine may not display full performances, resulting in troubles. It may also cause safety problems. Therefore, be sure to arrange the installing (use) conditions before setting up the machine.

No. Content

1 Bringing space 2 Installing space 3 Power source (Capacity, fluctuation, safety) 4 Floor strength 5 Direct rays of the sun, dust, temperature, humidity,

gases, chemicals

A. Bringing space

For installation of a large size machine, be sure to check that the door size is great enough before bringing in.

B. Installing space

The following space must be provided around the machine in order to assure machine performances and proper operations.

If any option is installed, provide the additional space for installing it.

Especially the space at the rear of the machine must be provided sufficiently. If not, the machine cannot exhibit functions against heat and dust, causing some troubles.

30cm (11.8")

80 cm (31.5")

60cm (23.6")

(3) Power frequency, waveform

The frequency must be within the range of the specified frequency ±2%. If power waveform is deformed, a trouble may occur.

(4) Safety

Be sure to properly ground the machine.

(5) Power plug

Check the form of the power plug. If the shape does not match, do not use it.

D. Floor strength and level

This machine is considerably heavy and becomes heavier with an option installed.

The floor must be strong enough for assuring safety. If not, color shift or image distortion may occur.

E. Direct rays of the sun, dust, temperature,

humidity, gasses, chemicals, vibration

(1) Temperature and humidity

This machine is designed to perform properly under the specified temperature and humidity. If the temperature and humidity exceeds the specified range, the machine may not operate properly and or cause equipment failure.

Especially when the humidity is too high, paper absorbs humidity to cause a paper jam or dirty copy.

C. Power source

(Capacity, voltage, frequency, safety, plug)

If the power specifications are not satisfied, the machine cannot exhibit full performances and may cause safety trouble.

Strictly observe the following specifications.

(1) Power capacity

Check that the following power capacity is satisfied. If not, additionally provide a power source.

Current capacity

100V: 15A or more 200V: 10A or more

(2) Power voltage

Measure the voltage during copying to check that the voltage is in the range of the specified voltage ±10%.

If the voltage is outside the specified range, use thicker lead wires to reduce impedance.

(An electrical work is required.) Use of a step-up transformer is also available. In this case, the

capacity must be great enough for the max. power consumption of the machine.

AR-C172M UNPACKING AND INSTALLATION 5 - 1

(Do not install the machine near a stove, a humidifier, or an air conditioner.)

Do not install the machine near a heater, a cooler, or a humidifier. Dew may be formed inside the machine to cause a trouble. Use

enough care for ventilation.

Humidity (RH)

80%

60%

20%

15˚C30˚C35˚C

Temperature

(2) Dust

If dust enters the machine, it may cause dirty copy and a paper jam, resulting in a shortened lifetime.

(3) Direct rays of the sun

If the machine is installed under the rays of the sun, the exterior of the machine may be discolored and abnormal copies may be produced.

(4) Gases and chemicals

Do not install the machine at a place where there are gases and chemicals. Especially be careful to avoid installation near a diazotype copier, which produces ammonium gas.

Copy quality may be adversely affected and a trouble may be caused.

2. Transit and delivery

No. Content Method

1 Implements, facility,

and man power

2 Delivery Transit must be made in packed

Use a forklift. (If no forklift is available, manpower of four persons is required.)

condition.

A. Implements, facility, and manpower

It is recommendable to use a forklift for bringing in the machine for safety.

If no forklift is available, man-power of four persons is required. The machine is considerably heavy, and requires safety precautions for delivery and installation.

Transit of the machine must be made in packed condition to the installing place.

B. Delivery

Remove the packing materials prior to installation in the ofice environment.

3. Unpacking

A. Unpacking procedure

1) Remove the PP band.

2) Remove the top case.

3) Remove the internal packing pads and the items packed together with the machine.

4) Remove the machine from the package.

(5) Vibration

Avoid installation near a machine which produces vibrations. If vibrations are applied to the copier machine, copy images may

be deflected and a trouble may be caused.

AR-C172M UNPACKING AND INSTALLATION 5 - 2

Fixing tape and protection pads removal

1) Remove the fixing tape and protection pads from the machine.

4. Lock release

A. Scanner (2/3 mirror unit) lock release

1) Remove the scanner fixing screw, and remove the caution label.

2) Open the left door, and remove the transfer fixing pads.

B. Main body cassette lock release

1) Pull out the main body cassette.

2) Remove the rotation plate fixing pad and remove the caution label.

C. Transfer unit pressure release

1) Pull the knob and open the left door.

AR-C172M UNPACKING AND INSTALLATION 5 - 3

2) Loosen the roller knob (A), and remove the fusing unit (B).

6) Remove the screw and apply a tension to the transfer belt.

3) Hold section A of the transfer unit and pull it out so that the both sides of the transfer unit can be held.

4) Hold sections B and remove the transfer unit.

5) Remove the transfer belt protect sheet.

7) Install the transfer unit to the machine.

5. Fusing heat roller pressing (F/R)

1) Pull the knob and open the left door.

2) Turn the pressure release lever to press.

Note: If the machine is left for one month or more, the heat roller

rubber may be deformed. In such a case, therefore, release the pressure.

AR-C172M UNPACKING AND INSTALLATION 5 - 4

6. Black drum cartridge insertion

1) Pull the knob and open the left door.

2) Open the front cover.

8. Toner cartridges installation

* The life of each toner cartridge packed together with the

machine is as follows: Black toner CA: 8.3K (6%) equivalent Color toner CA: 5.5K (5%) equivalent

1) Shake the toner cartridge horizontally several times.

3) Insert the black drum cartridge, and fix it with a screw.

2) Remove the tape, and remove the protection pad.

3) Open the front cover.

4) Insert the toner cartridge.

∗ As shown below, fit the cartridge with the insertion port and

push it in.

7. Paper exit tray installation (Optional)

1) Install the paper exit tray to the left door.

Note: Be sure to install the color cartridges to their proper posi-

tions. Avoid instillation to a different color position.

AR-C172M UNPACKING AND INSTALLATION 5 - 5

[Color toner cartridge positions]

Yellow

Magenta

Cyan

9. AC cord connection

1) Insert the AC power plug into the connector at the rear of the machine, and connect the other end to the power outlet.

Black

5) Insert the cartridge securely until it locks.

6) Return the cartridge lever to the original position.

7) Close the front cover.

10. Machine power ON

1) Turn on the power switch on the left side of the machine.

AR-C172M UNPACKING AND INSTALLATION 5 - 6

11. Specifications setup

Used to set the specifications with SIM26 according to the customer's request.

SIM No Content 26 6 Used to set the destination.

To customize the following items after completion of the destination setup, change the set values.

SIM No Content

26 2 Used to set the large capacity paper feed tray paper

size. Used to set the detection paper size and display

when using 8.5 x 13 size paper and document. Used to set the paper kind and the display form in the

manual paper feed mode. 3 Used to set the auditor specification mode. 5 Used to set the count mode of the total counter and

the maintenance counter.

18 Used to set YES/NO of the toner save mode (Only in

UK and Japan versions) For other destination

versions, this setup is made by the user program.

52 Used to set YES/NO of counting when non-print

paper is passed through each counter.

53 Used to set YES/NO of user calibration permission. 65 Used to set the limit number of sheets for stapling.

On completion of the installation of the AR-F13 finisher, please change the default output tray of the machine to the top tray of the finisher.

12. Image quality check

Check the following items related to image quality. For details of the adjustment and checking procedures, refer to the chapter of adjustments.

1) Image focus, image skew (Refer to ADJ 3.)

2) Image registration (Refer to ADJ 4.)

3) Image loss, void area (Refer to ADJ 10.)

4) Copy color balance, density (Refer to ADJ 11.) Check that the above items are normal. If not, make the adjust-

ment.

13. Function and operation check

Check that the following operations are normal.

Check item Installation

Key input operation (Operation panel)

Display (Operation panel) Paper feed

operation

Paper size detection operation Document size

detection operation

RSPF operation/ Duplex copy operation

Bookbinding operation When the finisher is installed. Stapling operation When the finisher is installed. Grouping operation When the finisher is installed. Sorting operation When the finisher is installed.

Manual paper feed

Machine paper tray

Desk unit paper feed tray

Document table mode

RSPF mode S-S mode D-S mode S-D mode When the desk unit with the

D-D mode When the desk unit with the

When the desk unit is installed.

duplex unit is installed.

14. Setup and adjustment data recording

Print the various setup data and the adjustment data (list) with SIM22-6 and keep the data.

In case of a memory trouble, if the data are not kept, all the adjustments must be made again.

If the data are kept, the setup values and the adjustment values can be entered without adjustments, shortening the servicing time.

15. Necessary works before moving the machine

1) If the following options are installed, remove all of them from

the machine.

• Finisher

• Reverse unit

• RSPF unit

• Desk unit

2) Remove the following consumable parts from the machine.

• Paper

• Toner cartridge

• Photoconductor cartridge

3) Lock the following sections.

• Scanner (Optical section)

• Paper cassette lift plate

AR-C172M UNPACKING AND INSTALLATION 5 - 7

[6] EXTERNAL VIEW AND INTERNAL STRUCTURE

1. Name and function of each section

A. External view

1234

Without the duplex bypass/inverter unit (14) installed.

56 7 8

14 13 12 11

No.

1 Left tray Finished sheets are deposited here. 2 Left side cover Open this cover when a paper misfeed occurs in the fusing unit or the transfer

3 Reversing single pass feeder This automatically feeds originals to be scanned.

4 Power switch Press to turn power on and off. 5 Front cover Open to replace toner cartridge. 6 Operation panel Performs various functions with the operation keys and the touch panel. 7 Centre tray Finished sheets are deposited here. 8 Bypass tray Special papers (including transparency film) and copy paper can be fed from the

9 Stand/1 x 500 sheet paper

drawer

10 Stand/3 x 500 sheet paper

drawer

11 Duplex module/2 x 500 sheet

paper drawer

12 Paper tray Each tray can hold approximately 500 sheets of the recommended paper for color

13 Left side cover release Push this release up to open the left side cover. 14 Duplex bypass/inverter unit This module is required to automatically turn paper over within the machine for

Name Function

unit.

The feeder can turn the original over and scan the back side as well as the front side for support of two-sided originals.

bypass tray. This stand has one paper tray. It can hold approximately 500 sheets of the

recommended paper for color (80 g/m SHARP standard paper (64 g/m This stand has three paper trays. Each tray can hold approximately 500 sheets of the recommended paper for color (80 g/m sheets of SHARP standard paper (64 g/m This stand includes a module for automatic two-sided printing and two paper trays. The two trays can hold approximately 500 sheets of the recommended paper for color (80 g/m standard paper (64 g/m bypass/inverter unit (AR-RB1) is required.

(80 g/m g/m

automatic two-sided printing.

or 21 lbs.), or approximately 550 sheets of SHARP standard paper (64

or 21 lbs.).

Parts

or 21 lbs.), or approximately 550 sheets of

or 21 lbs.).

or 21 lbs.), or approximately 550

or 21 lbs.).

or 21 lbs.), or approximately 550 sheets of SHARP

or 21 lbs.). To perform two-sided printing, a duplex

Note

Option (AR-D17N)

Option (AR-D18N)

Option (AR-D19N)

Option (AR-RB1)

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 1

B. Internal structure

15 16

No.

15 Fusing unit Toner images are fused here. The fusing unit is hot. Take

16 Toner cartridge The toner cartridge must be replaced when indicated on the

17 Right side cover Open when a misfeed has occurred in the paper feed area. 18 Right cover of paper drawer Open this cover to remove paper misfed in the paper drawer.

Name Function

operation panel.

Parts

Note

care in removing misfed paper.

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 2

C. Operation panel

34 567

No.

Name Function

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

touch panel, first change the display to the mode that you wish to use: printer mode, copy mode, network scanner mode*

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

[PRINT] key/READY indicator/DATA indicator

Press to enter the printer mode.

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.

[IMAGE SEND] key/LINE indicator/DATA indicator

Press this key to switch the display between network scanner mode*

[COPY] key

Press to select the copy mode. 3 [JOB STATUS] key Press to display the current job status. 4 [CUSTOM SETTINGS] key Use to adjust the contrast of the touch panel or to set key operator programs. 5 Numeric keys Use to enter number values for various settings. 6 [*] key ([ACC.#-C] key) This is used when the copy, network scan* 7 [#/P] key This is used as a program key when using the copy function, and to dial when using the fax

function*

. 8 [C] key This key is used in copy mode, network scanner mode* 9 [BLACK COPY START] key This is used to make black and white copies and to scan a black and white original when the

network scan function is used. This is also used to scan an original to be faxed using the fax function*

10 [CA] key This key is used in copy mode, network scanner mode* 11 [COLOR COPY START] key This is used to make full-color or single-color copies and to scan a color original when the

network scanner function is used.

*1: When the network scanner option is installed. *2: When the fax option is installed.

Parts

, or fax mode*2 .

and fax mode*2.

, and fax*2 functions are used.

, and fax mode*2.

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 3

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

This screen is displayed when the [JOB STATUS] key on the operation panel is pressed. A job list showing the current job at the top of the job queue or a list showing completed jobs can be displayed. The contents of jobs can be viewed or jobs can be deleted from the queue. (The screen below is an example and differs from actual

screens.)

JOB QUEUE

COPY

SHARP001

SETS / PROGRESS

003 / 000

STATUS

PAPER EMPTY

WAITING

JOB QUEUE

1/1

COMPLETE

DETAIL

066211221

001 / 000

WAITING

PRIORITY

STOP/DELETE

PRINT JOB SCANNER JOB

FAX JOB

3456789

No.

1 Job list This shows the current job and the jobs waiting to be run. The icons to the left of the jobs in the queue

2 Mode select key This only appears in the job status screen of fax mode. The key is used to switch the job list display

3 [PRINT JOB] key Use to display the print job list for printer, copy and fax mode. 4 [SCANNER JOB] key This displays a list of only the jobs that use the network scanner function. (Only when the network

5 [FAX JOB] key This displays the transmission/reception status and finished jobs of fax mode when the fax option is

6 Display switching keys Use to switch the page of the displayed job list. 7 [STOP/DELETE] key Use to cancel or delete the current job or delete the selected reserved job. Note that a fax print job cannot

8 [PRIORITY] key This only appears in the job status screen of fax mode. Touch this key to give priority to a job that has

9 [DETAIL] key The key is only effective for computer print jobs and only appears in the job status screen of the printer

Name Function

show the job mode.

Copy mode Printer mode

Network scanner mode

Fax send job Fax reception job

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 5 and 6.

* "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. When the [DETAIL] key appears, the key of a job in the job queue can be touched followed by the [DETAIL] key to change the paper size selection to a different paper size (only in printer mode).

between "JOB QUEUE" and "COMPLETE". "JOB QUEUE": Shows stored jobs and the job in progress. "COMPLETE" : Shows finished jobs.

scanner function is added.)

installed.

be cancelled or deleted.

been selected in the job queue.

mode. It is used to display detailed information of a selected print job and to change the paper size for the print job.

Parts

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 4

E. Cross section

2134 5617

62 65747377 76 66 75 70 6763,64

59 58

56 54 53

52 51

50 49

48 47

46 45 44

43 42

2425 26

2122 23

72 18

27 28

3840

16 60

30 31

32 33

34 35 36 37

No.

Name Function

Parts

1 No. 3 mirror Leads a document image to the CCD. 2 No. 2 mirror Leads a document image to No. 3 mirror. 3 No. 1 mirror Leads a document image to No. 2 mirror. 4 Scanner lamp Radiates light on a document for the CCD to scan the document image. 5 Yellow toner cartridge Attaches yellow toner to electrostatic latent images on the

photoconductor.

6 Magenta toner cartridge Attaches magenta toner to electrostatic latent images on the

photoconductor. 7 Cyan toner cartridge Attaches cyan toner to electrostatic latent images on the photoconductor. 8 Black toner cartridge Attaches black toner to electrostatic latent images on the photoconductor. 9 Discharge lamp Discharges the photoconductor.

10 Main charger unit Charges the magenta photoconductor negatively. 11 LED unit Converts the color component image signal sent from the ICU PWB into

LED light, and radiate it to the OPC drum.

12 Doctor blade Regulates the toner quantity on the developing roller. 13 Supply roller Supplies toner to the developing roller. 14 Developing roller Attaches toner to the photoconductor. 15 Cleaning blade Cleans residual toner from the photoconductor. 16 OPC drum unit Forms electro-static latent images. 17 CCD lens Reduces document images (light) and projects it to the CCD. 18 CCD PWB Reads document images (photo signals) and converts them into electrical

signals.

19 Transfer roller (K) Applies the transfer voltage to the transfer belt. 20 Transfer roller (C) Applies the transfer voltage to the transfer belt. 21 Transfer roller (M) Applies the transfer voltage to the transfer belt. 22 Transfer roller (Y) Applies the transfer voltage to the transfer belt.

Note

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 5

No.

Name Function

Parts

Note

23 Transfer belt Transfers toner images of the photoconductor onto paper. 24 Waste toner box (Transfer section) Collects waste toner on the transfer belt. 25 Lift-up unit Lifts the transfer belt. 26 Paper pickup roller (No. 1 tray) Sends paper to the paper feed roller. 27 Idle roller Applies a pressure to paper and the transport roller to provide transport

power of the transport roller to paper.

28 Manual paper feed roller Feed paper to the paper transport section. 29 Paper pickup roller Sends paper to the paper feed roller. Manual paper

feed section 30 Separation roller Separates paper to prevent double feed. 31 Manual paper transport roller Transports paper to the resist roller. 32 Upper resist roller Transports paper to the transfer section. 33 Lower resist roller Transports paper to the transfer section. 34 Idle roller Prevents paper skew. 35 Paper transport roller 1 Transports paper to the resist roller. 36 Paper feed roller (No. 1 tray) Feed paper to the paper transport section. 37 Separation roller (No. 1 tray) Separates paper to prevent double feed. 38 Idle roller Applies a pressure to paper and the transport roller to provide transport

power of the transport roller to paper. 39 Paper transport roller 2 Transports paper to the transport roller 1. 40 Fusing unit Fuses toner on paper. 41 Lower heat roller thermistor Detects the temperature on the fuser roller surface. 42 Lower heat roller thermostat Detects an abnormally high temperature and turns off the heater lamp. 43 Lower heat roller Heats and presses toner on paper to fuse toner on paper. 44 Lower heater lamp Heats the lower fuser roller. 45 Lower separation pawl Mechanically separates paper which was not separated naturally from the

lower heat roller. 46 Fusing transport roller Transports paper after fusing. 47 Idle roller Applies a pressure to paper and the transport roller to provide transport

power of the transport roller to paper. 48 Gate Switches the paper exit path. (face up, face down) 49 Upper heater lamp Heats the heat roller. 50 Upper heat roller Heats and presses toner on paper to fuse toner on paper. 51 OPC drum Forms latent static electrostatic images with LED light. 52 Upper heat roller thermistor Detects the temperature on the heat roller surface. 53 Upper heat roller thermostat Detects an abnormally high temperature and turns off the heater lamp. 54 Idle roller Applies a pressure to paper and the transport roller to provide transport

power of the transport roller to paper. 55 Transfer belt cleaning blade Cleans toner on the transfer belt. 56 Paper transport roller 3 Transport paper to the paper exit roller. 57 Belt waste toner transport shaft Transports waste toner on the transfer belt to the waste toner box. 58 Paper exit roller Discharges paper to outside of the machine. 59 Idle roller Applies a pressure to paper and the transport roller to provide transport

power of the transport roller to paper. 60 Drum Forms electrostatic latent images by LED light. 61 Document length sensor (L2) Detects the tray document length. 62 Document length sensor (L1) Detects the tray document length. 63 Document set sensor (W0) Detects presence of document. 64 Document width sensor (W1, W2, W3) Detects the document width. 65 Pickup roller Picks up a document. 66 Paper feed roller Feeds and transports a document. 67 Paper entry sensor (PAPER) Detects transport of a document. 68 PS roller Synchronizes the document lead edge and the image lead edge. 69 PS follower roller Synchronizes the document lead edge and the image lead edge. 70 Transport roller Transports a document. 71 Transport follower roller Transports a document. 72 Paper exit sensor (PO) Detects transport of a document. 73 Paper exit follower roller Discharges a document. 74 Paper exit roller Discharges a document. 75 Reverse gate Opens/closes the document reverse path. 76 Paper exit gate Switches the discharged paper path to the intermediate tray or to the

paper exit tray. 77 Intermediate tray Receives paper in document reverse operation.

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 6

F. Motors, clutches, solenoids, fans

10 15

18 17

No.

1 Exit select gate solenoid Drives the exit path select gate. GSS Electromagnetic solenoid 2 Offset motor (Slide motor) Drives the paper exit offset. OSM Stepping motor 3 Fusing drive motor Drives the fusing unit. FUSM Stepping motor 4 Exhaust fan motor 1 Exhaust and cools the fusing section. VFMP DC motor 5 Exhaust fan motor 2 Exhaust and cools the fusing section. VFMS DC motor 6 Power unit cooling fan

motor 7 Drum motor (Y) Drives the yellow photoconductor unit. DM_Y Stepping motor 8 Drum motor (M) Drives the magenta photoconductor unit. DM_M Stepping motor 9 Drum motor (C) Drives the cyan photoconductor unit. DM_C Stepping motor

10 Drum motor (K) Drives the black photoconductor unit. DM_K Stepping motor 11 Printer controller cooling

fan motor

12 PS motor Drives and turns ON/OFF the resist roller. PSM Stepping motor 13 Process cooling fan motor Exhaust and cools the process section. PCFM DC motor 14 Scanner motor Drives the scanner unit. SM Stepping motor 15 PS front clutch Transmits power of the paper feed motor to the manual

16 Paper feed motor Drives the paper feed section and the paper transport

17 Paper feed clutch Transmits power of the paper feed motor to each transport

18 Manual paper feed clutch Controls ON/OFF of the manual paper feed roller. Presses

19 Paper feed drive clutch Controls ON/OFF of the paper feed roller. CPFC1 Electromagnetic clutch 20 No. 1 cassette lift-up motor Drives the lift plate. LUM1 Synchronous motor 21 Belt lift-up motor Lifts the transfer belt unit. BLUM Stepping motor

Name Function

Cools the power unit. PSFM DC motor

Cools the printer controller.

paper feed unit. (Controls ON/OFF.)

section.

roller. (Controls ON/OFF.)

the paper pickup roller to paper.

Parts

Code,

signal name

MTRC Electromagnetic clutch

PFM DC servo motor

TRC Electromagnetic clutch

MPFC Electromagnetic clutch

Type

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 7

No.

Name Function

22 Calibration plate open/

Parts

Switches the image density sensor. CALS Electromagnetic solenoid

Code,

signal name

Type

close solenoid

23 Transfer belt motor Drives the transfer belt. BTM Stepping motor 24 Pickup solenoid Drives the document pickup roller. PSOL Electromagnetic solenoid 25 Pressure release solenoid Paper exit roller pressure, release, control RSOL Electromagnetic solenoid 26 PS clutch Document resist clutch CLH Electromagnetic clutch 27 RSPF motor RSPF drive motor MOT Stepping motor 28 Gate solenoid Gate switch solenoid in duplex GSOL Electromagnetic solenoid

G. Sensors, switches and heaters

10 11

Lift-up unit

17 18

Front / right side / top view

No.

2 O/C open/close sensor Detects open/close of the document cover. (A timing signal of

3 Offset home position sensor Detects the offset home position. HPOS Photo sensor (Photo

4 Paper exit tray full detection Detects full of the face down paper exit tray. TFD2 Photo sensor (Photo

5 Mirror home position sensor Detects the scanner home position. MHPS Photo sensor (Photo

7 Dehumidifier heater switch Turns ON/OFF the dehumidifier heater installed in the scanner

8 Toner empty sensor (Y) Detects toner empty (Y). TES_Y Photo sensor (Photo

9 Toner empty sensor (M) Detects toner empty (M). TES_M Photo sensor (Photo

10 Toner empty sensor (C) Detects toner empty (C). TES_C Photo sensor (Photo

11 Toner empty sensor (K) Detects toner empty (K). TES_K Photo sensor (Photo

12 No. 1 paper transport sensor Detects paper in front of the resist roller. PPD1 Photo sensor (Photo

Name Function

Parts

document size detection is produced.)

(reading) section and the paper feed section.

Code, signal

name

OCSW Phot o sensor (Photo

DHSW (Japan only)

Type

transmission)

—

transmission)

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 8

No.

13 Paper feed door open detection Detects open/close of the paper feed door. DSWR Micro switch 14 Manual feed paper empty detection Detects paper empty on the paper tray. MPED Photo sensor (Photo

15 Manual feed tray pulling out detection 2 Detects the paper tray position. MTOP2 Contact switch 16 No. 1 cassette paper size detection 1 Detects the paper size set by the paper size set blocks. C1SS1 Contact switch 17 No. 1 cassette paper size detection 2 Detects the paper size set by the paper size set blocks. C1SS2 Contact switch 18 No. 1 cassette paper size detection 3 Detects the paper size set by the paper size set blocks. C1SS3 Contact switch 19 No. 1 cassette paper size detection 4 Detects the paper size set by the paper size set blocks. C1SS4 Contact switch 21 Manual feed paper length detection 2 Detects the paper length. MPLD2 Photo sensor (Photo

22 Manual feed tray pulling out detection 1 Detects the paper tray position. MTOP1 Contact switch 23 Manual feed paper length detection 1 Detects the paper length. MPLD1 Photo sensor (Photo

24 Humidity sensor Detects the ambient humidity. HUD — 25 No. 1 cassette paper feed detection Detects paper exit from No. 1 paper tray. PFD1 Photo sensor (Photo

26 Manual feed paper width detection Detects the paper width. MPWS Volume (Variable

27 No. 1 cassette lift-up upper limit

detection

28 PS front sensor Detects paper in front of PS. PPD2 Photo sensor (Photo

29 No. 1 cassette paper empty detection Detects paper empty on the paper tray. PED1 Photo sensor (Photo

30 Dehumidifier heater Dehumidifier hater for the main body cassette. (Japan only) DH — 31 Belt lift-up upper limit detection Detects lift-up or lift-down of the transfer belt. BLUD Photo sensor (Photo

32 Belt waste toner full detection Detects belt waste toner full. BTNF Contact switch 33 Color toner concentration (process

control) sensor/Auto image Reg. 34 Lower heat roller thermistor Detects the temperature on the heat roller surface. THSD Thermistor 35 Lower heat roller thermostat Detects an abnormally high temperature and turns off the heater

36 Machine paper exit sensor 1 Detects discharged paper. POD1 Photo sensor (Photo

37 Upper heat roller thermistor Detects the temperature on the heat roller surface. THSU Thermistor 38 Upper heat roller thermostat Detects an abnormally high temperature and turns off the heater

39 Power switch Used to switch the nighttime mode/normal mode. 39 Main switch Turns ON/OFF the main power. MSW Seesaw switch

40 Front door open detection Detects open/close of the front door. DSWF Micro switch 41 Paper exit door open detection Detects open/close of the paper exit door. DSWL Micro switch 42 Face-up paper exit tray full detection Detects full of the face-up paper exit tray. TFD Photo sensor (Photo

43 Machine paper exit sensor 2 Detects discharged paper. POD2 Photo sensor (Photo

45 Document set sensor Detects presence of a document.

46 Open/close sensor Detects open/close of the paper feed unit. COVER Photo sensor (Photo

47 Document width sensor (A4R, LTR, A5) Detects the document width on the tray. W1 Photo sensor (Photo

48 Document width sensor (B4, B5) Detects the document width on the tray. W2 Photo sensor (Photo

49 Document width sensor (WLTR, A5R,

A4, LT) 50 Paper entry sensor Detects presence of a document. PAPER Photo sensor (Photo

51 Document length detection SW (Short) Detects the document length on the tray. L1 Photo sensor (Photo

52 Document length detection SW (Long) Detects the document length on the tray. L2 Photo sensor (Photo

53 Book sensor Detects floating of the RSPF. COVER OPEN Photo sensor (Photo

54 Paper exit sensor Detects presence of a document. PO Photo sensor (Photo

Name Function

Parts

Detects the upper limit position of paper. LUD1 Photo sensor (Photo

Detects the toner patch density (color toner) in image density correction operation. 2-sensors on PWB.

lamp.

Detects the document width on the tray. W3 Photo sensor (Photo

Code, signal

name

PCS_C Photo sensor (Photo

HLTS2 Thermostat

HLTS1 Thermostat

Type

transmission)

resistor)

transmission)

Thermal switch

transmission)

Thermal switch

MSW Seesaw switch

transmission)

Photo sensor (Photo transmission)

transmission)

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 9

H. PWB 1

16 17

20 19

7 8

Front / right side / top view

No.

1 CL inverter PWB Drives the xenon lamp. 2 MFP PWB Corrects images from the CCD and controls the operation panel. 3 Flash PWB (OP) Includes the program to drive the OP PWB. 4 Flash PWB (SCN) Includes the program to drive the SCN PWB. 5 Document detection LED PWB Emits light for document size detection. 6 CCD PWB Converts document images into electric signals. 7 Lift-up unit PWB tray Detects the cassette size and interfaces the cassette lift-up motor signals. 8 Manual feed VR PWB Outputs manual feed width signals.

9 Process control PWB (for black) Outputs the black toner density on the transfer belt. 10 Process control PB (for color) Outputs the color toner density on the transfer belt. 11 Document detection light receiving PWB Outputs the document size detection signal. 12 Operation PWB Outputs the key operation signal. 13 INV/LVDS PWB Interfaces LCD from the MFPPWB and the touch panel signal, and drives the LCD

14 Network PWB Network connection PWB 15 PRT controller PWB Printer control PWB (HDD, NIC standard) 16 Flash PWB (FONT) PWB which has font data 17 Flash PWB (PCL) PWB which has the printer controller control program 18 Flash PWB (BOOT) PWB which has the program to boot the printer controller 19 Flash PWB (ICU) Includes the program to drive the ICU PWB. 20 ICU PWB Performs image process and controls LED. 21 Interface PWB Signal interface

Name Function

backlight.

Parts

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 10

H. PWB 2

No.

22 PCU PWB Controls the engine section. 23 Driver PWB Controls the DC load power and drive the motor. 24 AC power PWB Controls the power on the primary side. 25 LED DL PWBs Discharges electric charges on the OPC drums. 26 Flash PWB (PCU) Includes the program to drive the PCU PWB. 27 High voltage TC PWB Produces the transfer voltage. 28 DC power PWB Outputs the voltage on the secondary side, and controls the heater lamp. 29 High voltage MC PWB Produces a high voltage for the main charger and the developing bias voltage.

Name Function

Parts

Right side / top rear / view

Model

AR-C172M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 11

[7] DESCRIPTIONS OF EACH SECTION

THSD

HLTS2

1. Fusing section

(2) Electrical and mechanical sections

Drawer connector (13+4pin)

3 5 4

HL1

HLTS1

THSD

Fusing unit

POD1

THSU

A4 A7

B3 B4 B5 A6 A2

HL1N

3 HL2N

HL2

+24VL FULHin

+5V POD1 THSD GND2

THSU

GND2

A. Operational descriptions

(1) Outline

This section performs the following function and operation.

1) Toner attached to paper in the transport section is fused onto paper by heat and pressure of the heat roller.

A4 A1

B6B1 B4

B2 A2

FUSM

Fusing drive connection gear

FUSM_B\

Driver PWB

CN8(20pin)

FUSM_B

FUSM_A\

CN1(6pin)

81920

+24V

FUSM_A

CN2(34pin)

+24V

654321

DSWLin DSWLout

+24V

FUSM_B\

FUSM_A\

FUSM_B

FUSM_A

DSWL

+24V +24V FUSM_B\ FUSM_A\ FUSM_B FUSM_A

DSWL

CN3

L2 CN3-3 N2 CN3-1

FUCHin

+5V

POD1

THSD

GND2

THSU GND2

1 3 5 7

CN12(34pin)

HL1N

HL2N

HL drive circuit

DC power PWB

CN2

765431

CN14(10pin)

PCU

1214

DC-CNT

CN7

HL2

MSWON

+24V

HLPR

HL1

HLTS2

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 1

(3) Major parts/signals functions and operations

120V 950W 120V 350W

No. Name Code, Signal name Function

1 Heat roller

—

2 Upper/lower separation pawls

3 Heater lamp Upper: HL1, Lower: HL2 Heats the heat rollers. 4 Thermistor Upper: THSU, Lower: THSD Detects the surface temperature of the heat roller. (Keeps the

5 Thermostat Upper: HLTS1, Lower: HLTS2 Cuts conduction of the heater lamp when an abnormally high

6 Paper exit sensor POD1 Detects paper discharged from the fusing section. RW Control signal FUSM_A, A’, B, B’ Drives the fusing section. RW Control signal FUCHin Fusing unit installation detecting signal RW Control signal DSWL Left cabinet open/close detection signal RW Control signal HLPR Heater lamp power relay (in the DC power PWB) drive signal

RW: Abbreviation of Related Wiring, which means the said load is specified in the related figure of the mechanical and the electrical sec-

tions.

—

Heats and presses toner to fuse it on paper. Silicon rubber rollers are used as the upper and the lower heat rollers. Teflon tube is wound around the upper heat roller. Mechanically separate paper from the heat roller, which was not separated naturally.

roller surface temperature at a constant level.)

temperature is detected.

(4) Operational descriptions

a. Fusing unit drive

To drive the fusing unit, drive power is transmitted from the drive motor (FUSM) through the connection gear to the upper heat roller gear.

The drive motor (stepping motor) is driven by the motor drive IC in the driver PWB according to the control signal sent from the PCU.

Driver PWB

b. Heater lamp drive

The surface temperature detected by the thermistor is sent to the PCU. When the temperature is lower than the specified level, the PCU sends the heater lamp lighting signal to the heater lamp drive circuit in the DC power PWB.

The triac in the heater lamp drive circuit is turned on to apply AC power to the heater lamp, which turns on to heat the heat rollers.

The thermostats are provided as a safety measure to prevent against an abnormally high temperature of the heat rollers.

When the thermostat is opened, the power supply (AC neutral) to the heater lamp is cut off.

c. Fusing operation

Color toner of YMCK on paper is heated and pressed by the heat rollers to be fused on paper.

At that time, color toner of YMCK is mixed to reproduce nearly actual colors of document images.

FUSMPCU

The upper and the lower heat rollers are provided to heat from above and below. This is because it is necessary to heat four layers of toner from above and below and right and left to fuse it on paper.

The upper and lower heat rollers are of silicon rubber. This is because of the following reasons:

1) To provide a greater nip quantity and a higher heating capacity for paper.

2) The soft, flexible rollers press multi-layer toner without deformation to fuse on paper.

3) An even pressure is applied to an uneven surface of multilayer toner.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 2

d. Fusing temperature control

The temperature sensor is provided at the center of the upper and the lower heat rollers.

The temperature sensor at the center detects the heat roller temperature and controls the heater lamp to keep the fusing temperature at the specified level.

The fusing temperature is switched according to the machine condition and paper type selected.

(Example: 200V series)

Upper heat roller Lower heat roller Ready state 160°C 145°C Power save mode 138°COFF Print mode Normal paper

B/W OHP sheet 170°C 155°C Heavy paper 1 170°C 135°C Heavy paper 2 175°C 145°C Envelope 180°C 145°C

160°C 145°C

B. Disassembly/Assembly/Maintenance

(1) Fusing section maintenance target parts

✕: Check (Clean, replace, or adjust as necessary.) ❍: Clean ▲

Unit Name No. Part name

Fusing section 1 Upper heat roller ✕ ✕▲✕▲✕▲✕▲Replace at 100K or

2 Lower heat roller ✕ ✕▲✕▲✕▲✕▲Replace at 100K or

3 Heat roller gear ✕ ✕▲✕▲✕▲✕▲100K 4 Heat roller bearing ✕ ✕▲✕▲✕▲✕▲100K 5 Separation pawl ✕ ✕▲✕▲✕▲✕▲100K 6 Thermistor ✕ ✕▲✕▲✕▲✕▲100K – Bearings ✕ ✕✕✕✕✕✕✕✕ 8 Gears ✕ ✩✩✩✩✩✩✩✩

9 Paper guides ❍ ❍❍❍❍❍❍❍❍ 10 Paper exit roller ✕ ✕✕✕✕✕✕✕✕ 11 Paper exit roller ✕ ✕✕✕✕✕✕✕✕ 12 Discharge brush ✕ ✕✕✕✕✕✕✕✕

– Fusing unit ✕▲✕▲✕▲✕▲Replace the unit at

When

calling

: Replace ∆: Adjust ✩: Lubricate ❏: Shift position

50K 100K 150K 200K 250K 300K 350K 400K Remark

within 2 years.

100K or within 2 years.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 3

(2) Maintenance parts replacement procedure

a. Fusing unit removal

1) Open the left cabinet.

2) Loosen the roller knob (A) and remove the fusing unit (B).

c. Lower thermistor

1) Remove the fusing unit from the machine.

2) Remove the screws, and remove the fusing front PG (A).

3) Remove the connector, the screw, and the harness, and remove the thermistor (B).

b. Upper thermistor

1) Remove the fusing until from the machine.

2) Remove the screw and the harness cover (A).

3) Remove the connector, the screw, and the harness, and remove the thermistor (B).

d. Upper heater lamp

1) Remove the fusing unit from the machine.

2) Remove the screw and remove the fusing front cover (A). Remove the harness cover (B).

3) Remove the connector, the screw, and the lamp holder (C), and remove the upper heater lamp (D).

e. Lower heater lamp

1) Remove the fusing unit from the machine.

2) Remove the screw, and remove the fusing front cover (A).

3) Remove the screw, and remove the fusing front PG (B).

4) Remove the connector, the screw, and the lamp holder (C), and remove the lower heater lamp (D).

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 4

f. Upper heat roller, bearing, gear

1) Remove the fusing unit from the machine.

2) Remove the lever (A), and release the roller pressure.

3) Remove the screw.

4) Open the upper fusing section.

6) Remove the C-ring and the bearing, and remove the gear (A) and the heat roller (B).

g. Lower heat roller, bearing

1) Remove the fusing unit from the machine.

2) Remove the screw, and open the upper fusing section.

3) Remove the lower heat roller unit (B).

4) Remove the C-ring and the bearing (A), and remove the heat roller (B).

5) Remove the heat roller upper unit (B).

∗ When assembling, put the flanges of the upper bearings outside

of the frames F and R.

Frame R Frame F

h. Paper guide

1) Remove the fusing unit from the machine.

2) Remove the screw, and remove the paper guide.

Note: Refer to the adjustment (ADJ13) when installing the paper

guide.

Frame R Frame F

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 5

i. Paper exit roller

1) Remove the fusing unit from the machine.

2) Open the upper fusing section.

3) Remove the E-ring (A), and shift the bearing (B).

4) Remove the paper exit roller unit (C).

5) Remove the E-ring, the gear, the pin, and the bearing.

j. Lower separation pawl

1) Remove the fusing unit from the machine.

2) Open the upper fusing section.

3) Remove the paper exit roller unit.

4) Lift the separation pawl and shift it to the right and lift it from the heat roller.

7) Rotate the separation pawl in direction A and remove if from the mounting plate. Remove the spring.

Note: When attaching the separation pawl, check that the separa-

tion pawl is in contact with the heat roller.

5) Remove the POD1 connector.

6) Remove the screw, and slide and remove the lower separation pawl mounting plate.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 6

2. Transfer section

(2) Electrical and mechanical sections

A. Operational descriptions

(1) Outline

This section functions and operates as follows:

1) A high, positive voltage is applied to the transfer roller to charge the transfer belt and paper on it positively, attracting negatively charged toner images on the OPC drum onto paper.

Transfer belt unit

(20pin) (14pin)

BTNF

CALS/

GND2

BSEN_LED

PCS_K

GND2

PCS_C

ASEN_LED

GND2

REGSEN

TS (CL)

BTM /B

BTM /A

BTM B

BTM A

+24V

GND (FLAME)

PCSC

Color PC & Auto reg sensor

(2pin)

Process control shutter

CALS

11 13

7 3 1 5 9

(5pin)

PCSK

Lift-up cam

(6pin)

BLUM B/

BLUM A/

BLUM B

BLUM A

+24V

+24V CALS/ GND2 PCSC B SEN LED REG SEN +5V

PCSK A SEN LED GND2

(4pin)

BLUM

BLUD

(5pin)

Drawer connector (24pin)

BTNF

CN9

(24pin)

CALS/

BELT CHim

A SEN LED

PCSK

GND2

PCSC

B SEN LED

GND2

REG SEN

+5V

BTM B/

BTM A/

BTM B

BTM A

+24V

BTM

HV REM

GND

CN2 (10pin)

HV (MC) PWB

Drive gear

TC C

4567891012 3

TC M

TC Y

1 2 3 4 5 6

TC K

CN1 (8pin)

BTM B/ BTM A/ BTM B BTM A +24V +24V

+24V

(NC)

+24V

GND2

HV STB

HV DATA

HV CLK

HV REM

2 1

BTN F

GND2

DSNRout DSWR

30 34

CN17

(28pin)

8 7 4 2 6

+24V

PCU PWB

CN6 (10pin)

3579810246

BTNF

THVY

THVM

THVC

THVK

HV (TC) PWB

+24V

(NC)

+5V

BLUD

GND2

3 4 5

CN1 (10pin)

FG TCK TCY TCM TCC HVREM GND FG

2 3 4 5 6 7 8 9

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 7

(3) Major parts/signals functions and operations

24 24 244

No. Name Code, signal name Function

1 Transfer belt — Transfers toner images on the OPC drum onto paper. 2 Transfer roller — Applies a transfer voltage to the transfer belt. 3 Belt cleaning blade — Cleans and removes toner from the transfer belt. 4 Transfer discharge sheet — Discharges the transfer belt. 5 Transfer belt cleaning roller — Removes paper dust from the transfer belt. 6 Transfer belt drive roller — Drives the transfer belt. 7 Transfer belt follower roller — Transfer drive follower roller 8 Transfer belt cleaning brush — Cleans the back surface of the transfer belt. 9 Process control sensor Monochrome: PCSK

Color: PCSC 10 Transfer waste toner tank — Collects waste toner on the transfer belt. 11 Transfer belt unit

RW Belt motor BTM Drives the transfer belt. RW Calibration solenoid CALS Drives the shutter on the process control sensor. RW Waste toner full detection switch BTNF Detects waste toner full in the waste toner box. RW Belt lift-up motor BLUM Lifts up the transfer belt unit. RW Belt lift-up sensor BLUD Detects the position of the transfer belt unit. RW Control signal TC (K, C, M, Y) Each color transfer high voltage control signal RW Control signal THV (K, C, M, Y) Each color transfer high voltage

RW: Abbreviation of Related Wiring, which means the said load is specified in the related figure of the mechanical and the electrical sec-

tions.

Detects the toner patch density in image density correction.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 8

(4) Operational descriptions

a. Transfer belt drive

The transfer belt drive power is transmitted from the drive motor (BTM) to the transfer drive roller.

The motor (stepping motor) is driven by the drive signal sent from the PCU.

b. Applying a transfer high voltage to the transfer roller

According to the high voltage control signal from the PCU, the signal is converted into a transfer high voltage control signal with the HV (MC) PWB, and sent to the HV (TC) PWB.

According to each color transfer high voltage control signal, a high voltage is applied to each transfer roller from the transfer high voltage HV (TC) PWB through the connection spring to each transfer roller.

e. Transfer belt unit up and down

In color print, the transfer belt is in contact with four OPC drums. In black and white print, the transfer belt unit moves down so that only the black OPC drum is in contact with the transfer belt.

This up-and-down movement of the transfer belt is performed by the lift-up motor (BLUM), the lift-up cam, and the unit position sensor (BLUD).

When the left cabinet is opened for jam process, the rotating mechanism of the lift-up unit separates all four OPC drums from the transfer belt.

• Transfer belt position for color print The four OPC drums are in contact with the transfer belt by rotation of the cam in the transfer lift-up unit.

YMC

• Transfer belt position for black print Only the black OPC drum is in contact with the transfer belt by rotation of the cam in the transfer lift-up unit.

c. Process control sensor control

The process control shutter is provided on the process control sensor of monochrome (PCSK) and color (PCSC). When the shutter is open (in image density correction and automatic registration), the toner patch formed on the transfer belt is read by the process control sensor, and its information is sent to the PCU.

When the shutter is closed, the calibration sheet is read to perform calibration of the sensor itself.

The shutter operation is controlled by the calibration solenoid (CALS).

d. Belt waste toner full detection

Toner scraped by the belt cleaning blade is transported to the waste toner box by the belt waste toner transport shaft.

When the waste toner box is full, the rotation load of the waste toner transport shaft increases to turn on the waste toner full detection switch with the lever by the torque limiter function.

YMC

9mm

• Transfer belt position in jam process or replacement of the transfer belt When the left cabinet is opened, the transfer lift-up unit moves down, and the transfer unit moves by 9mm accordingly.

YMC

Drive to paadle by blum Waste toner full detection → 1000 copies → without 24g reset

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 9

B. Disassembly/assembly/maintenance

(1) Transfer section maintenance target parts

: Replace ∆: Adjust ✩: Lubricate ❏: Shift position

✕: Check (Clean, replace, or adjust as necessary.) ❍: Clean

Unit name No. Part name

Transfer section

1 Transfer belt ✕▲✕▲✕▲✕▲Replace at 100K or

2 Transfer roller ✕▲✕▲✕▲✕▲ 3 Transfer belt cleaning

blade 4 Transfer discharge sheet ✕❍✕❍✕❍✕❍ 5 Transfer belt cleaning

roller 6 Transfer drive roller ✕✕✕✕✕✕✕✕ 7 Transfer follower roller ✕✕✕✕✕✕✕✕ 8 Transfer cleaning brush ✕✕✕✕✕✕✕✕ 9 Sensors ✕✕✕✕✕✕✕✕

10 Waste toner tank unit ▲ ✕▲✕▲✕▲✕▲When waste toner full

11 Transfer belt unit ✕▲✕▲✕▲✕▲Replace the unit at

24 24 244

When

calling

50K 100K 150K 200K 250K 300K 350K 400K Remark

▲

✕▲✕▲✕▲✕▲Replace at 100K or

✕▲✕▲✕▲✕▲

TX belt clean blade seals.

within 2 years.

is detected.

100K or within 2 years.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 10

(2) Maintenance parts replacement procedure

a. Transfer unit removal

1) Open the left cabinet, and remove the fusing unit. (Refer to the section of the fusing unit.)

2) Hold section A of the transfer unit and pull it in the arrow direction so that you can hold both sides of the unit.

3) Hold both sides B and remove the transfer unit from the machine.

Note: Be careful not to scratch the surface of the transfer belt.

c. Process control sensor

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the spring from the hook section.

4) Remove the hook, and remove the process control shutter.

b. Belt drive motor

1) Remove the transfer unit from the machine.

2) Remove the screw, and remove the belt cover gear.

3) Remove the connector, the screw, and the motor.

Cleaning: Clean the calibration sheet. (Wipe with soft, dry cloth.)

5) Remove the connector and the screws, and remove the process control sensor.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 11

Cleaning: Clean the sensor surface.

d. PWB

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the spring from the hook section.

4) Remove the process control shutter.

5) Remove the connector (A).

6) Remove the connector (B) and the screw, and remove the PWB.

Note for assembly: Insert the notches A and B of the waste toner tank unit into the

positions in the transfer frame indicated in the figure below.

f. Transfer belt

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the lower screw.

Front

e. Waste toner tank unit

1) Remove the transfer unit from the machine.

2) Remove the connectors and the screws, and remove the belt drive unit.

3) Remove the waste toner tank unit.

Rear

Note: If the upper screw is removed and folded, the electrode is

deformed. Therefore, be sure to remove the lower screw.

4) Fold the transfer belt housing and remove the transfer belt.

Lot number marking

Note for installation: When installing the transfer belt, be sure to place the lot number

section marked inside the transfer belt on the front side.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 12

g. Transfer roller

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the transfer belt.

4) Disengage the pawl, and remove the bearing and the transfer roller.

Conductive

i. Transfer follower roller

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the transfer belt.

4) Remove the E-ring and the bearing, and remove the transfer follower roller.

Front

Note for assembly: There are two different transfer roller bearings: black and white.

The black bearing is conductive, and must be attached to the electrode side (rear frame side).

h. Transfer drive roller

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the transfer belt.

4) Remove the E-ring and the bearing, and remove the transfer drive roller.

Rear

j. Transfer cleaning blade

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the waste toner tank unit.

4) Remove the screw, and remove the transfer cleaning blade.

k. Transfer belt cleaning roller

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the waste toner tank unit.

4) Press the cleaning lever in the arrow direction A, extend the pawl in the arrow direction B, and pull up the cleaning lever in the arrow direction C.

5) Remove the transfer belt cleaning roller.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 13

l. Belt cleaning brush

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the transfer belt.

4) Remove the Belt cleaning brush.

m. Transfer discharge sheets.

1) Remove the transfer unit from the machine.

2) Remove the connector and the screw, and remove the belt drive unit.

3) Remove the transfer belt.

4) Remove the terminals.

n. Transfer lift-up unit

1) Remove the screw, and remove the left cabinet of the machine.

2) Remove the connector.

3) Adjust the rail positions so that section A does not make contact with the acuride section when the transfer lift-up unit is lifted up.

5) Remove the transfer discharge sheets.

4) Lift the transfer lift-up unit in the arrow direction B with section A as the fulcrum, and remove it.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 14

3. Process (image forming) section

LED

A. Operational descriptions

(1) Outline

This section functions and operates as follows:

1) In this section, the LED is lighted according to the data sent from the image process section to form electrostatic latent images on the OPC drums which are charged evenly by the main charger, and toner is attached to the electrostatic latent images.

(2) Electrical and mechanical sections

CN4(22pin) M

GND2

DATA00

DATA01

DATA02

DATA03

DCLK

CN7 CN9 CN4

CN1

CN5

CN2

Discharge lens

Grid

Drum cartridge Y, M, C, K

CN5(22pin) C CN6(22pin) K CN9(22pin) Y

8 9 10 11 12 13 14 15 16 17 18 19 20 21 227654321 654321

GND2

DATA10

DATA11

8 9 10 11 12 13 14 15 16 17 18 19 20 21 2276543211 654321

ICU

CN6

CN3

ICU

GND2

LSYNC

PSYNC

GND2

DVALID

LPHRST

GND2

DATA12

DATA13

LED unit

GND2

STATUS

GND2

Y, M, C, K

CN1(6pin) M CN2(6pin) C CN3(6pin) K CN7(6pin) Y

GND2

+3.5V

+5V

Developing roller

GND2

+5V

MC(K)

Drum drive unit

DL LED

MC(YMC)

CN2(34pin)

CN3(12pin) C,M

Driver PWB

CN4(6pin) Y

654321

GND2

TES_

+5V

321

TES_

Y, M , C, K

Rear frame

DV CRUM

DVRTN

MC YMC

DVBias

CN10(12pin)

CN19(16pin)

CN1(3pin) K CN3(3pin) C CN5(3pin) M CN8(3pin) Y

DMB/

+24V

DMB

DMA

+24V

DMA/

4321

DVCLK

DVD ATA

+5V

MC K

HV(MC)PWB

CN1(8pin)

GND2

HV-STB

HV-DATA

HV-CLK

HV-REM

CN17(28pin)

CN12(34pin)

PCU

CN2(6pin) K

654321

(6pin)

88776655443221

+24V

Toner cartridge Y, M, C, K

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 15

Y, M, C, K

(3) Major parts/signals functions and operations

No. Name Code, Signal name Function

1OPC drum (YMCK) — Forms electrostatic latent images. 2 Main charger (YMCK) MC Charges the OPC drum surface negatively. 3 Discharge lens — Discharges the OPC drum surface. 4 Cleaning blade — Cleans the OPC drum surface to remove residual toner. 5 Toner reception seal — Seals to prevent against toner leakage. 6 Waste toner transport screw — Transports toner scraped by the cleaning blade to the waste toner box of the

7 MC cleaner — Cleans the MC (charging plate). 8LED unit — Converts image signals into LED light and radiates it onto the OPC drum.

9 Developing roller — Attaches toner to the OPC drum. (Do not touch the developing roller.) 10 DV CRUM (Y, M, C, K) — Memory for toner cartridge data (counter, etc.) 11 Waste toner box — Collects waste toner transported from the drum cartridge.

RW Grid biks GB Controls the drum surface potential. RW Discharge lamp DL Radiates lights onto the discharge lens. RW Drum motor A, A’, B, B’ DM A, A’, B, B’ Drives the OPC drum. RW Toner empty sensor TES Detects the toner quantity in the toner cartridge.

RW: Abbreviation of Related Wiring, which means the said load is specified in the related figure of the mechanical and the electrical sec-

tions.

toner cartridge.

(4) Operational descriptions

a. Drum cartridge and toner cartridge drive

The drive power for the drum cartridges are transmitted from the drive motor (DM) to the drum gears.

The toner cartridge is driven through the drum gear and the connection gear.

The motor (stepping motor) for black is driven by the drive signal sent directly from the PCU, and the motors color are driven by the drive signals sent from the PCU through the driver PWB.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 16

b. LED (writing) unit

Four LED (writing) units are provided for each of Yellow, Magenta, Cyan, and Black.

Each LED (writing) unit converts YMCK dot image data outputted from the ICU PWB into LED light, and radiate the light onto the OPC drum, forming electrostatic latent images on the OPC drum.

Since the position of each LED unit of CMYK is shifted in the paper transport direction, the above operation depends on the relative position and differs in the operating timing.

• LED unit composition

Item Content Print width 314mm Total number of dots 7424 dot Resolution 600dpi LED composition

Number of LED chips 58 chip Number of dots 128 dot

Lens Selfoc lens

c. OPC drum section operations

The OPC drum surface is charged negatively by the main charger, and LED light of images are radiated onto the OPC drum surface by the LED (writing) unit to form electrostatic latent images.

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

Main corona unit

High voltage unit

Screen grid

CTL CGL

3) Clean and remove residual toner from the OPC drum with the cleaning blade after transfer operations.

OPC drum

Aluminum

layer

OPC drum

The screen grid is attached to the main charger unit. The OPC drum is charged at a voltage nearly same as the voltage applied to the screen grid.

2) LED light is radiated onto the OPC drum surface by the LED (writing) unit to form electrostatic latent images.

LED light

OPC drum

CTL CGL Aluminum

layer

When LED light is radiated onto the OPC drum CGL, positive and negative charges are generated. Positive charges generated in the CGL are attracted and moved by negative charges of the OPC drum, and negative charges by positive charges of the aluminum layer of the OPC drum. Therefore, on the OPC drum surface and in the aluminum layer, positive and negative charges are neutralized, reducing the OPC drum surface potential.

Electric charges remain in the areas where LED light is not radiated onto the OPC drum.

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

Charges are disposed in direct proportion to the amount of light received.

Removed residual toner is transported to the waste toner section of the toner cartridge by the waste toner transport screw.

4) The whole surface of the OPC drum is discharged.

Lens

CTL CGL

Aluminum layer

CTL

CGL Aluminum layer

By radiating discharge lamp light onto the discharge lens, light is radiated through the discharge lens to the OPC drum surface.

When discharge lamp light is radiated onto the OPC drum CGL, positive and negative charges are generated.

Positive charges generated in the CGL are attracted and moved by negative charges of the OPC drum, and negative charges by positive charges of the aluminum layer of the OPC drum. Therefore, on the OPC drum surface and in the aluminum layer, positive and negative charges are neutralized, reducing the OPC drum surface potential, preparing the drum surface for the new copy cycle.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 17

d. Developing section (composed of four units of YMCK)

operations

Electrostatic latent images generated on the OPC drum by the LED (writing) units are converted into visible images by toner.

<1> Remaining toner quantity detection

Rotation of the detection lever connected to the mixing roller is sensed by the sensor (TES) to detect the remaining toner quantity.

OPC drum

CTL

CGL Aluminum layer

Toner in the developing unit is agitated by the mixing roller. By mixing operation, toner is negatively charged due to mechani-

cal friction. The developing bias voltage (negative) is applied to the develop-

ing roller. The diflerence for the voltage potential between the toner and DV

roller surface attracts the toner to the DV roller. In the areas of the OPC drum, when the charge was detected, the

voltage potential difference is greater than the DV roller. Therefore the toner is attracted from the DV roller to the drum.

In the unexposed areas of the drum, the potential on the DV roller created by the bias voltage and therefore the toner to not attracted to those areas of the drum.

Negatively charged toner is attracted and attached to the exposed area on the OPC drum surface where the negative potential was reduced by LED exposure.

On the other hand, in the areas on the OPC drum where exposure was not made, the positive potential is higher than the developing bias voltage, repelling toner.

Drive

Own weight

Drive

Own weight

<2> Waste toner collection

Waste toner collected by the drum cleaning blade is transported to the waste toner box of the toner cartridge by the toner transport spring in the drum unit.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 18

OPC drum

B. Disassembly/assembly/maintenance

(1) Process section maintenance target parts

: Replace ∆: Adjust ✩: Lubricate ❏: Shift position

✕: Check (Clean, replace, or adjust as necessary.) ❍: Clean

Unit name No. Part name

Drum peripheral section

Developing section (integrated with toner cartridge)

LED 7 LED lens ❍ ❍❍❍❍❍❍❍❍

Note: When replacing the OPC drum, execute SIM 25-1 for 2 minutes. (This simulation is executed in order to avoid generation of stripes on

a half-tone print image.)

1 Drum (B/W, Color) ▲▲ ▲▲▲▲▲▲ 2 Charging unit ▲▲▲▲▲▲▲▲ 3 Cleaner blade ▲▲▲▲▲▲▲▲ 4 Toner reception seal ▲▲▲▲▲▲▲▲ 5 Drum cartridge ▲▲▲▲▲▲▲▲When replacing the unit 6 Toner cartridge Replaced by user when toner empty

When

calling

▲

50K 100K 150K 200K 250K 300K 350K 400K Remark

(or at the specified distance covered)

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 19

(2) Maintenance parts/major parts replacement

a. Developing unit removal

1) Open the front cabinet.

2) Lift the lever in the arrow direction A, and remove the developing unit in the arrow direction B.

c. Drum removal

1) Remove the drum unit.

2) Remove the retaining clip from the drum shaft (A).

3) Slide the drum shaft in the arrow direction B.

4) Remove the drum in the arrow direction C.

ARC260(13_3_A03)

d. Charging unit

1) Remove the drum unit.

2) Remove the screw and remove the cover (A).

3) Remove the MC unit from the MC cleaning shaft.

4) Remove the charging unit (C).

b. Drum unit removal

1) Open the front cabinet and left cabinet.

2) Turn the fixing screw in the arrow direction A to release it, and remove the drum unit in the arrow direction B.

∗ When assembling, attach the drum, then attach the charging

unit. (This is to prevent against dirt by starting powder applied to the drum.)

e. Cleaner blade

1) Remove the drum unit.

2) Remove the charging unit.

3) Remove (A).

4) Remove the screw, and remove the cleaner blade.

Note: Be sure to open the left cabinet before releasing the fixing

screw. If the fixing screw is released before opening the left cabinet, the lock cannot be released.

In that case, push the drum unit to the rear frame side and release the lock, and remove the drum unit.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 20

f. Toner reception seal

1) Remove the drum unit.

2) Remove the drum.

3) Remove the screw, and remove the toner reception seal.

h. LED unit removal

1) Remove the rear cabinet.

2) Remove the PCU PWB unit.

3) Remove the developing unit.

4) Remove the drum unit.

5) Remove the top cover, and disconnect the connector of the ICU.

Note: Do not deform the seal.

g. MC cleaner

1) Remove the drum unit.

2) Remove the screw, and remove cover (A).

3) Remove the MC unit.

4) Release the pawl, and remove the MC case upper in the arrow direction.

5) Release the pawl, and remove the MC case lower in the arrow direction.

6) Remove the screen grid.

6) Remove the screw (A) on the rear side, and remove the LED unit.

AAAA

7) Remove the LED unit.

8) Remove the connector cover and the harness.

7) Disengage the pawl, and remove the MC cleaner.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 21

i. LED lens cleaning

4. Optical section (Scanner section)

(2) Electrical section and mechanical section

A. Operational descriptions

(1) Outline

This section functions and operates as follows:

1) The copy lamp radiates light onto the document, and the reflected light is scanned by the three line (RGB) CCD element and then converted into image signals (analog).

2) The image signals (analog) are converted into 8bit digital signals by the A/D converter.

3) The image signals (digital) are sent to the image process section (ICU PWB).

MHPS

GND2

123

CCD PWB

Scanner motor

CCD lens unit

+5V

+24V

LAMP

GND

Inverter PWB

Copy lamp unit

12 534

GND

CN8 (5pin)

LAMP

+24V

15 16 14

MHPS

GND

CN11 (16pin)

30 29 26 2528 27

GND2

REVEN

CN13 (30pin)

GND2

+5V

RODD

GND2

24 23

GEVEN

GND2

22 19 1821 20 17 16 15 12 1114 13

GODD

GND2

BODD

GND2

BEVEN

GND2

+5V

+12V

MFP PWB

9810 7 6 5

4321

GND2

+5V

GND2

CCD_RS

CCD_CP

GND2

CCD_SH

GND2

CCD_CLK2

GND2

CCD_CLK1

GND2

1234

SM A

SM A/

CN14 (4pin)

CN12 (24pin)

CN10 (14pin)

SM B

CN16 (28pin) CN16 (28pin)

SM B/

ICU PWB PCU PWB

CN13 (24pin)

CN10 (14pin)

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 22

(3) Major parts and signals functions and operations

No. Name Code, Signal name Function

1 Scanner motor SM Drives the copy lamp unit and the mirror base unit. 2 Pulley belt — Transmits drive power of the scanner motor to the pulley. 3Pulley — Drives the scanner drive wire. 4 Scanner drive wire — Transmits drive power of the scanner motor to the copy lamp unit

and the mirror base unit. 5 Scanner unit home position sensor MHPS Detects the home position of the copy lamp unit. 7 Copy lamp CL Radiates light onto documents. (Xenon lamp) 8 Reflector — Converges light from the copy lamp. 9 No. 2 mirror — Sends document images to No. 3 mirror.

10 No. 3 mirror — Sends document images to the lens. 11 Lens — Reduces document images (photo images) and projects them to the

CCD.

12 CCD PWB — Receives the document image (photo signals) and converts them

into electrical signals.

RW Inverter PWB LAMP Drives the copy lamp (Xenon lamp). RW Scanner motor drive SM A, A’, R, B’ RW MHPS MHPS Scanner home position detect jam

RW: Abbreviation of Related Wiring, which means the said load is specified in the related figure of the mechanical and the electrical sec-

tions.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 23

(4) Operational descriptions

a. Optical section drive

The optical section drive power is transmitted from the drive motor (SM) through the belt, the drive pulley, and the wire to drive the copy lamp unit and the mirror base which are attached by the drive wires.

The drive motor (stepping motor) is controlled by the drive signal sent from the MFP PWB.

b. Copy lamp drive

The copy lamp is driven by the copy lamp drive voltage generated in the inverter PWB according to the control signal sent from the MFP PWB.

c. Image scan/color separation

The CCD element, appeared as one unit, but has three separate rows of CCD elements drive each for (RGB).

Light is radiated to a document by the copy lamp (Xenon lamp), and the brightness of the reflected light is received by the three line (RGB) CCD element and converted into (analog) image signals.

Each color component of RGB is separately extracted from the document image by the three lines (RGB) of the CCD elements.

The red CCD extracts the red components from the document image, the green CCD the green components, and the blue CCD the blue components. This operation is called Color Separation.

The CCD element, appeared as one unit, but has three separate rows of CCD elements drive each for (RGB).

Scanning of a document in the main scanning direction is performed by the CCD elements. Scanning of a document in the sub scanning direction is performed by shifting the scanner unit position with the scanner motor.

Document images are optically reduced by the lens and projected to the CCD elements.

The scanning resolution is 600dpi × 600dpi.

(Image data for one line)

RGB

Red component of image data

d. Image signal A/D conversion

1) Each image signal (analog) of RGB is converted into 8bit digital signal by the A/D converter. Each color pixel has 8bit information (256 gradations).

2) Each 8bit digital image signal of RGB is sent to the image process section.

Green component of image data

Blue component of image data

CCD PWB

Color

3-line

CCD

R analog IC

G analog IC

B analog IC

R A/DC

G A/DC

B A/DC

CCD ASIC

G B

ICU PWB

e. Zooming operation

Zooming in the sub scanning direction is performed by changing the scanning speed in the sub scanning direction.

Zooming in the main scanning direction is not performed optically but by the image process technology (software).

R G B

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 24

B. Disassembly/assembly/maintenance

(1) Transfer section maintenance target parts

: Replace ∆: Adjust ✩: Lubricate ❏: Shift position

✕: Check (Clean, replace, or adjust as necessary.) ❍: Clean

Unit Name No. Part name

Optical section 1 CCD, mirror, lens, reflector ❍ ❍❍❍❍❍❍❍ ❍

2 Table glass, sensors, OC ❍ ❍❍❍❍❍❍❍❍ 3 SPF glass ❍ ❍❍❍❍❍❍❍❍ 4 Rails ✩ ✩✩✩✩✩✩✩✩ 5 Drive wire, pulley, pulley belt ✕ ✕✕✕✕✕ ✕✕✕

When

calling

▲

50K 100K 150K 200K 250K 300K 350K 400K Remark

(2) Major parts replacement

a. MFP PWB

1) Open the upper cabinet rear cover.

2) Remove the connector and the screw, and remove the scanner control PWB unit. Remove the screw and remove the scanner control PWB (A).

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 25

b. CCD unit

1) Remove the screw, the glass holder right (A), the glass holder left (B), and the table glass (C).

2) Remove the screw and the dark box cover (A). Remove the connector, the screw, and the CCD unit (B).

c. Lamp unit

1) Shift the lamp unit to the position shown below. Loosen the screw and remove the wire.

d. Xenon lamp

1) Remove the lamp unit.

2) Remove the harness and the screw, and remove the Xenon lamp.

e. Scanner motor

1) Remove the upper cabinet rear unit.

2) Remove the connector and the spring.

2) Rotate the lamp unit and lift it, and remove the harness holder and the harness. Remove the lamp unit.

3) Remove the screws, and remove the scanner motor unit.

4) Remove the screws, and remove the scanner motor.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 26

f. MHPS

1) Remove the upper cabinet rear unit.

2) Remove the screw and remove the upper cabinet left. Remove the screw and the connector, and remove the MHPS.

5. Paper feed, paper transport, and paper exit sections

A. Operational descriptions

(1) Outline

This model is provided with a cassette paper feed tray and a manual paper feed tray as standard provision.

As an option, either the 3-stage paper feed cassette module (ARD18) or the 2-stage duplex paper feed cassette module (AR-D19) can be installed.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 27

The paper transport section transports paper from each paper feed port to the PS roller section.

Paper with images transferred on it in the transfer section is passed to the fusing section, and discharged to the face-up tray or the face-down tray.

(2) Electrical section and mechanical section

PFM

PPD2

TRC

TFD2

a. Cassette paper feed, paper transport, and paper exit sections

GND2 TFD +5V

GND2 POD2 +5V OFFSETMB\ OFFSETMA\ OFFSETMB OFFSETMA +24V

+5V HPOS\ GND2

+5V

+24V

OSMA

POD1

+5V

CN20(22pin)

PSMB\

PSMA\

141415

OSMA\

OSMB

OSMB\

GND2

CN14(10pin)

CN13(6pin)

PSMA

PSMB

POD2

+5V

+24V

GND2

+24V

654

+5V

101011

TFD

+24V

GND2

TRC\

+24V

\DCONOFF

GND2

+24V

\DC_LOCK

GND2

\DCONOFF

PCU

DC_CLK

\DC_LOCK

DSWR

30342527292426

DC_CLK

TRC

PSM

PFM

18pin

11 9 7

5 3 1

18 16

17 15 13

GND2

HPOS

GND2

+5V

TFD2

CN7(32pin)

CN11(34pin)

DSWRout

PPD1

+5V

8pin

GSS\

GND2

+5V

+24V

PPD1

PFD1

GND2

LUD1

+5V

C1SS1

PFD1

PED1

+5V

C1SS2

C1SS3

GND2

PFD1

CPFC1\

+24V

CN9(24pin)

GND2

C1SS4

LUM1b

Lift-up PWB

GND2

LUM1a

C1SS1

PPD2

+5V

C1SS2

PPD2POW

C1PD1

C1SS3

C1SS4

GND2

LUM1b

LUM1a

+5V

C1PD1

TFD

321

+5V

HPOS

GND2

HPOS

PPD2

PED1

CPFC1

LUM1

3 2 1

32132121

24pin

GND2

PPD2POW

PPD2

321

+24V

CPFC1\

+5V

PED1

LUD1

TFD2

+24V

OSMA

OSMB

POD2

OSMA\

OSMB\

GSS

POD1

+5V

POD2

GND2

TFD2

+5V

GSS\

+24V

5pin

54321

(In the fusing unit)

Drawer connector

+5V

POD1

GND2

OSM

(NC)

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 28

b. Manual paper feed section

MPLD2

MPLD1

(8pin)

Right door switch

7 8

1 3 5 7

13 14

25 23 17 21 19 22 20

18 16 24 28 15 11

(14pin)

CN11(34pin)

CN17(28pin)

PCU

DSWRout DSWR

+24V GND2 DC_ONOFF\ DC_LOCK\ DC_CLK

+24V MTRC\

MPFC\ +24V MPED MPWSin +3.3V MTOP2 MTOP1 MPLD2 MPLD1 GND2 +5V TEMP_AN HUMiD_AN

(2pin)

10 14 13

1 2

9 3

7 5 8 6 4 2

DSWR

+24V GND2 DC_ONOFF\ DC_LOCK\ DC_CLK

1 2 3

4 5 6 7

Paper feed motor

PFM

MTRC\

+24V

Manual transport clutch

MTRC

MPED

Humidity sensor

MPWS Paper width sensor

+3.3V

MPWSin

TEMP

GND2

MPFC

Manual paper feed clutch

HUD

Tray position detection switch 1

HUD

+5V

MPLD1

+5V

GND2

+24V

MPFC\ 1

GND2

+5V

MPED

Tray position

MPLD2

GND2

MPLD2

detection switch 2

MTOP2

111

GND2

MTOP2

Paper length sensor 1

MPLD1

Paper length sensor 2

MTOP1

GND2

MTOP1

+5V

GND2

(3) Major parts and signals functions and operations

a. Manual paper feed unit

No. Name Code, Signal name Function RW Paper detector MPED Detects paper empty/presence in the paper tray.

1 Paper size (width) adjuster — Adjusts the paper position. 2 Paper size (width) sensor MPWS Detects the paper width. 3 Paper size (length) detector MPLD1 Detects the paper length. 4 Paper size (length) detector 2 MPLD2 Detects the paper length. 5 Tray position detector MTOP1 Detects the paper tray position. 6 Tray position detector MTOP2 Detects the paper tray position. 7 Paper pickup roller — Sends paper to the paper feed roller. 8 Manual paper feed roller — Feeds paper to the paper transport section. 9 Manual paper feed clutch MPFC Transmits the paper feed drive motor power to the manual paper feed roller.

10 Separation roller — Separates paper and transmits it to the paper feed unit. RW Manual transport clutch — Transmits the paper feed motor power to the manual paper feed unit. RW Paper feed motor — Drives the paper feed section and the manual paper feed unit.

RW: Abbreviation of Related Wiring, which means the said load is specified in the related figure of the mechanical and the electrical sec-

tions.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 29

b. Paper tray lift unit

No. Name Code, Signal name Function

1 Paper tray lift unit — Drives the paper tray lift plate. 2 Paper size detection actuator — Transmits the status data of the paper size block to the paper size detector. 3 Paper tray lift unit control PWB — Controls the paper tray lift unit. 4 Lift motor LUMx Drives the lift plate. 5 Paper size detector (switch) CxSSx Detects the paper size set by the paper size set block.

c. Paper feed unit

No. Name Code, Signal name Function

1 Paper tray paper feed unit — Feeds paper from the paper tray to the transport section. 2A Paper empty detector PEDx Detects paper empty in the paper tray. 2B Paper upper limit detector LUDx Detects the paper upper limit position. (Keeps the friction between the

3 Paper pickup roller — Feeds paper to the paper feed roller.

4 Paper feed clutch CPFCx Controls ON/OFF of the paper feed roller.

5 Paper feed roller — Feeds paper to the paper transport section.

6 Separation roller — Separates paper to prevent against double feed.

paper pickup roller and paper at a constant level.)

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 30

d. Paper exit section

No. Name Code, Signal name Function

1 Paper exit sensor POD2 Detects discharged paper.

2 Offset motor OSM Drives the paper exit offset.

3 Shifter home position sensor HPOS Detects the offset home position.

4 Paper exit switch gate solenoid GSS Drives the face-up/down switch gate.

(4) Operational descriptions

a. Paper feed tray section operation

The paper pickup roller moves up and down to press paper and separates the top paper, which is fed to the paper feed roller.

The paper feed roller feeds paper to the paper transport section. The separation roller prevents against double feed.

Up and down movement of the pickup roller is driven by the pickup solenoid, and ON/OFF control of the pickup roller and the paper feed roller is performed by the paper feed clutch.

Pickup roller

Paper feed motor

Paper feed roller

Separation roller

The paper lift plate lifts paper to control the upper limit position of paper so that the pressure between the top paper and the pickups roller remains constant. Lifting is performed by the lift motor and the lift gear.

Paper feed clutch

The lift position is detected by the paper upper limit detector to control the pressure between the top paper and the pickup roller.

Lift motor

Paper feed rollers

Separation rollers

Lift plate

Paper size detector

Pickup roller

Upper limit detectors

Lift motor

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 31

The paper feed tray is provided with the paper size detection block, and the status of this block is detected with the combination of ON/OFF of the four paper size detectors to recognize the paper size.

Relationship between the paper size detector and the paper size

Paper size detector

CSS4 CSS3 CSS2 CSS1 Japan

ON OFF OFF ON A3 A3 11 x 17 OFF OFF ON ON B4 B4 8.5 x 14

ON OFF ON OFF A4R A4R 11 x 8.5R OFF ON ON OFF A4 A4 11 x 8.5 OFF ON ON ON B5R B5 INVOICE OFF ON OFF ON B5 A5 FOOLSCAP

ON ON ON OFF A5 11 x 8.5 A4

ON ON OFF OFF EXTRA EXTRA EXTRA

Patterns other than above Recognized that the paper tray

EXTRA: Operates with the paper size set by the user program. The lift position sensor detects the lift plate lower limit position.

Then lift-up operation is started, and the rotation of the lift motor up to detection of the upper limit by the paper upper limit detector is used to calculate the paper remaining quantity.

b. Manual paper feed section operation

The paper pickup roller moves up and down to press paper and separates the top paper, which is fed to the paper feed roller.

The paper feed roller feeds paper to the paper transport section. The separation roller prevents against double feed.

The manual paper feed clutch controls ON/OFF of the pickup roller and the paper feed roller.

The manual transport roller transports paper to the resist roller.

Paper size

Destination

series

is not inserted.

Inch series

The paper size is detected by the paper length detector and the paper width sensor.

A volume-type sensor is used as the paper width sensor. The resistance varies according to variation of the paper guide position to detect the paper width.

The tray position detector detects that the paper tray is set to the maximum length position or to the minimum length position.

When the paper tray is set to the maximum length position, the paper length detector is forcibly turned ON. This is to recognize it.

Paper feed roller

Transport roller

Separation roller

Paper stopper

Paper feed roller

Transport roller

Pickup roller

Separation roller

Paper feed motor

Pickup roller

Clutch

c. Paper transport section

This section transports paper from each paper feed section to the transfer section (resist roller) by two transport rollers.

The paper transport clutch controls ON/OFF of each transport roller.

Paper feed motor

Paper transport roller

Paper feed clutch

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 32

Paper transport roller

d. Paper resist section

The resist roller controls the relative position of the transported paper and the transfer image.

The resist roller is driven by the resist roller motor. The relative position of paper and the transfer image is determined

by the ON timing of the resist roller motor.

PS motor

Upper resist roller

Lower resist roller

B. Disassembly/assembly/maintenance

(1) Paper feed/transport sections maintenance target parts

✕: Check (Clean, replace, or adjust as necessary.) ❍: Clean ▲

Unit name No. Part name

Paper feed section

1 Cassette section

paper feed rollers

2 Torque limiter 3 Manual feed section

When

calling

50K 100K 150K 200K 250K 300K 350K 400K Remark

❍ ❍✕❍✕❍✕❍✕

✕✕✕✕ ✕

❍ ✕✕✕✕✕✕✕✕

paper feed rollers

Transport section

4 Torque limiter 5 Transport rollers 6 Transport paper guide

✕ ✕✕✕✕✕✕✕✕

❍ ❍❍❍❍❍❍❍❍

: Replace ∆: Adjust ✩: Lubricate ❏: Shift position

e. Others

∗ The paper transport section is provided with two paper detec-

tors, which perform the following functions:

1) Paper jam detection

2) Output of the reference signal for the operating timing of each load

Replace according to the counter of each paper feed port or within 2 years.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 33

(2) Maintenance parts and major parts replacement

a. Cassette paper feed <1> Pickup roller

1) Remove the cassette.

2) Disengage the pawl, and remove the pickup roller.

<3> Paper separation roller, torque limiter

1) Remove the cassette.

2) Disengage the pawl, and remove the paper separation roller.

<4> Cassette paper feed unit

1) Open the front cabinet, and remove the drum unit.

Note: Do not remove the transfer belt unit.

<2> Paper feed roller, torque limiter

1) Remove the cassette.

2) Disengage the pawl, and remove the paper feed roller.

2) Remove the developing unit.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 34

3) Remove the front cabinet and the front frame cover.

4) Remove the multi manual paper feed unit.

5) Remove the connection right cabinet, the rear cabinet, and the rear right cabinet.

6) Remove the screw and the paper feed unit. Remove the connector.

∗ When assembling, fit the positioning pin A with section C.

b. Multi manual paper feed <1> Pickup roller

1) Open the arm cover (A). Disengage the pawl, and remove the pickup roller (B).

<5> Paper feed drive motor

1) Remove the screw, the rear cabinet, the rear right cabinet, and the connection right cabinet B.

2) Remove the screw, and remove the paper feed drive motor.

<6> Paper feed drive unit

1) Remove the harness and the screw, and remove the paper feed drive unit.

<2> Paper feed roller

1) Open the arm cover (A), open the auxiliary PG (B), and remove the paper feed roller (C).

<3> Paper separation roller

1) Open the vertical transport guide.

2) Open the maintenance cover (A) from the bottom of the multi paper feed unit. Disengage the pawl and remove the paper feed separation roller (B).

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 35

<4> Multi manual paper feed unit

1) Remove the screw and the harness, and remove the multi paper feed unit.

2) Remove the screw, and remove (A) and (B).

∗ When assembling, first attach (A), then attach (C) and (D).

<5> Paper feed clutch

1) Remove the screw and the cover (A). Remove the connector and the E-ring, and remove the paper feed clutch (B).

<6> Transport roller

1) Remove the bottom lid (A), remove the connector and the screw, and remove the cover (B).

3) Remove the screw and the E-ring, and remove the angle (A) and the gear.

4) Remove the screw, and remove (A) and the manual upper unit (B).

∗ When assembling, fit the cover projection with the spring.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 36

5) Remove the E-ring, the gear, and the bearing, and remove the transport roller.

c. Transport section <1> Vertical transport unit

1) Remove the drum and the developing unit.

2) Remove the front cabinet.

3) Remove the front frame cover.

4) Remove the multi manual paper feed unit.

5) Remove the rear cabinet, the connection right cabinet, the rear right cabinet, the front right cabinet, and the right lower cabinet.

6) Open the vertical transport guide. Remove the screw and remove the vertical transport guide unit.

8) Remove the paper feed drive motor, and remove the connector on the rear side. Remove the screw, and shift the vertical transport unit to the left to remove.

∗ When assembling, engage the four bosses indicated with

in the figure below.

<2> Transport roller 2

1) Remove the vertical transport unit.

2) Remove the screw, and remove the paper guide (A).

3) Remove the resin ring, and remove the pulley (B) from the belt.

4) Remove the resin E-ring, slide the bearing (C), and remove the transport roller 2 unit (D).

7) Remove the screw, and remove the vertical transport lower unit.

5) Remove the E-ring and parts, and remove the transport rollers.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 37

<3> Transport roller 1

1) Remove the vertical transport unit.

2) Remove the resin ring. Remove the pulley (A) from the belt.

3) Remove the resin E-ring, slide the bearing (B), and remove the transport roller 1 (C).

<5> Upper resist roller

1) Remove the vertical transport unit.

2) Remove the PS unit.

3) Remove the spring (A), and remove the upper resist roller (B).

<4> PS unit

1) Remove the vertical transport unit.

2) Remove the screw and the spring. Release the lock. Remove the belt and remove the PS unit.

∗ When assembling, attach from the left with avoiding the

plate in section A.

<6> Lower resist roller

1) Remove the vertical transport unit.

2) Remove the PS unit.

3) Remove the upper resist roller.

4) Remove the parts and remove the lower resist roller.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 38

<7> PS motor

1) Remove the rear cabinet, the connection right cabinet, and the rear right cabinet.

2) Remove the connector and the screw, and remove the process exhaust fan unit. Remove the connector and the screw, and remove the PS motor.

d. Paper exit section <1> Slide drive motor

1) Open the left cabinet.

2) Remove the FD connection cabinet.

3) Remove the connector and the screw, and remove the motor unit.

<2> FD paper exit unit

1) Remove the rear cabinet, the rear cabinet upper, the left cabinet, the rear left cabinet lid, the rear left cabinet, and the front cabinet upper.

2) Remove the motor unit.

3) Slide section (A) to the front side. Remove the screw, and disengage the pawl in section (B). Remove the FD paper exit unit (C) from the rear side and remove the connector.

∗ When assembling, attach from the front side. ∗ When assembling, be careful not to damage the actuator

(D).

4) Remove the connector and the screw, and remove the motor (A).

<3> FD paper exit roller B

1) Remove the cabinet.

2) Remove the paper exit unit.

3) Remove the E-ring, the bearing, and the gear. Remove the FD paper exit roller B.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 39

<4> FD paper exit roller A

1) Remove the cabinet.

2) Remove the paper exit unit.

3) Remove the E-ring, (A), the screw, (B), (C), and the bearing. Remove the unit (D).

e. Gate solenoid unit

1) Open the left door, and remove the rear cabinet and the rear left cabinet.

2) Remove the driver PWB unit.

3) Remove the connector and the screw, and remove the gate solenoid unit.

4) Remove the E-ring and the bearing, and remove the FD paper exit roller A.

f. Lift-up unit

1) Remove the rear cabinet and the rear right cabinet.

2) Remove the power PWB unit.

3) Remove the connector and the screw, and remove the lift-up unit.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 40

6. RSPF section

A. Operational descriptions

(1) Electrical section and mechanical section

(7pin) (7pin)

SPFCOVER

SGND

(6pin)

SGND

W0 5V W1 W2 W3 SPFCOVER SGND

(3pin)

3 2 1

1 2 3 4 5 6 7

(7pin)

Sensor

PWB

(3pin)

3 2 1

Paper feed unit

(3pin)

SGND

SPFOPEN

COVER

OPEN

5V L1 SGND 5V L2 SGND

/PSOL 24V1

PSOL

(3pin)

SGND

/SPFOUT

(2pin)

SPFCOVER

SGND

/PSOL 24V1 5V L1 SGND 5V L2 SGND SGND pull up PAPER /RSOL 24V1

SGND /SPFOUT 5V

(2pin)

/PSOL

24V1

SGND SPFOPEN 5V

/RSOL 24V1

PAPER

5 1 7 9

3 20 14

6 11

2 15 16

4 13 17 18

8 19 10 12

(2pin) (2pin)

1 2

RSOL

CN6 (20pin)

Interface PWB

CN2 (3pin)

CN1 (3pin)

/RSOL

24V1

MOT

CLH

Drive unit

(2pin)

SGND

pull up

PAPER

CN7 (3pin)

CN4 (2pin)

CN3 (7pin)

(3pin)

24V1

N.C.

/CLH

24V1

/GSOL

N.C.

24V1

(7pin)

N.C.

24V1

GSOL

(2pin)

/PSOL

24V1

N.C.

/CLH

Transport unit

(4) Operational descriptions

a. Major parts of the paper feed section

1 2 3,4 5 6 7 8

NO. Part name Operations, etc.

1 Document length

sensor (L2)

2 Document length

sensor (L1)

3 Document set sensor

(W0)

4 Document width sensor

(W1, W2, W3) 5 Pickup roller Picks up a document. 6 Paper feed roller Feeds and transports a document.

Detects the document length of the tray.

Detects presence of a document.

Detects the document width.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 41

NO. Part name Operations, etc.

7 Paper entry sensor

Detects transport of a document.

(PAPER)

8 PS roller Synchronizes the document lead

edge and the image lead edge.

9 PS follower roller Synchronizes the document lead

edge and the image lead edge. 10 Transport roller Transports a document. 11 Transport follower roller Transports a document.

910111314 151617

12 Paper exit sensor (P0) Detects transport of a document. 13 Paper exit follower roller Discharges a document. 14 Paper exit roller Discharges a document. 15 Reverse gate Opens/closes the document

reverse path. 16 Paper exit gate Switches the discharged paper

path to the intermediate tray or to

the paper exit tray. 17 Intermediate tray Discharges paper to the

intermediate tray in document

reverse operation.

b. Operation process

[Duplex document]

1) Document set (Document set sensor ON)

↓

2) Document size detection (Detects the document width with the document width sensors W1, W2, and W3 and the document length with the document length sensors L1 and L2.)

↓

3) Complex unit copy key ON

↓

4) RSPF motor ON

↓

5) Pickup solenoid ON

↓

6) Pickup roller and paper feed roller rotation

↓

7) The paper entry sensor detects presence of a document.

↓

8) PS roller rotation

↓

9) Copy operation (Document surface)

↓

10) Transport roller rotation

↓

11) Paper exit roller rotation

↓

12) The paper exit gate moves down. (The document is passed to the intermediate tray.)

↓

13) The reverse gate moves down.

↓

14) Paper exit roller reverse rotation (The document is passed to the reverse path.)

↓

15) The paper entry sensor detects presence of a document.

↓

16) PS roller rotation

↓

17) Copy operation (Document back surface copy)

↓

18) Transport roller rotation

↓

19) Paper exit roller rotation

↓

20) The paper exit gate moves down. (The document is passed to the intermediate tray.)

↓

21) The reverse gate moves down.

↓

22) Paper exit roller reverse rotation (The document is passed to the reverse path.)

↓

23) The paper entry sensor detects presence of a document.

↓

24) PS roller rotation

↓

25) Paper exit roller rotation

↓

26) The paper exit gate moves up.

↓

27) The document is passed to the paper exit tray.

↓

28) Next document → (YES) → Returns to 4).

↓ (NO)

29) RSPF motor OFF

c. Document size detection

<1> The document size is detected on the document set tray.

When a document is set on the document set tray with the paper/copy magnification ratio set in the auto mode, the document size is detected to operate the automatic selection function of paper and copy magnification ratio for the document size. When different sizes of documents are set in this detection method, the max. size of document is detected.

The document width is detected with the document width sensors (W1, W2, and W3), and the document length is detected with the document length sensors (L1 and L2) to determine the document size. Judgment of the document size is made at a timing after detecting the document with the document set sensor (W0).

Document

width sensor

W1 W2 W3 L1 L2

●●●●● B5R 8.5 x 11R ❍●●●● A5 5.5 x 8.5

— ❍●●● B5 8.5 x 11 ——❍● ● A4 8.5 x 11

●●●❍● B5R 8.5 x 11R ❍●●❍● A4R 8.5 x 11R

— ❍●❍● B4 *1 11 x 17 ——❍❍ ● A3 11 x 17

●●●— ❍ B5R 8.5 x 14 *3 ❍●●— ❍ A4R *2 8.5 x 14 *3

— ❍●— ❍ B4 *1 11 x 17 ——❍ — ❍ A3 11 x 17

[Note] Sensor: ON: ❍ OFF: ● Don't case: — *1: When the document size detection is AB-2, it is detected as

B5.

*2: When the document size detection is AB-2, it is detected as

8-1/2 x 13".

*3: When the document size detection is INCH 2, it is detected as

8-1/2 x 13".

Document

width sensor

AB series Inch series

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 42

B. Disassembly/assembly/maintenance

(1) Maintenance-target parts in the RSPF section

❍: Clean

No. Part name

(1) Pickup roller ❍

(2) - 1 Separation unit ❍ Replacement when

(2) - 2 Separation sheet ❍

(3) Paper feed roller ❍ (4) PS roller ❍ (5) Transport roller ❍ (6) Paper exit roller ❍

(2) Replacement procedures of maintenance parts and

major parts

[RSPF unit]

a. RSPF unit

When

calling

Remark

worn down

[External fitting]

Note: When installing, note that the grounding wire of the RSPF

unit and that of the document detection unit are tightened together.

Note: Disengage the pawl in the arrow direction.

[Paper feed unit section]

a. Paper feed unit

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 43

b. Document transport section cover

e. Pickup solenoid

Note: Remove section A of the pickup solenoid from the groove in

the solenoid arm.

c. Document feed section cover

f. Clutch gear assembly parts

d. Sensor PWB

2.5 – 4.0 from the lead edge

of the pawl

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 44

g. Pickup roller assembly parts

Note: When setting the pickup roller assembly 4, check to insure

that the rib A is on the rib of the solenoid arm.

[Interface PWB]

h. Pickup roller, paper feed roller

[Document tray section]

a. Document tray

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 45

b. Lack cover

c. Document length detection SW

b. Drive frame unit

3 4

[Drive frame section]

a. Book sensor

c. Drive frame assembly and drive belt

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 46

d. Pressure release solenoid

b. Transport roller gear

e. RSPF motor

c. Reverse gate

[Transport section]

a. Clutch

Note: When assembling, check to insure that the rib is in the

groove A of the clutch and that it is fixed with the E-ring.

d. Transport roller

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 47

e. PS roller

h. Paper exit roller

f. Paper feed paper guide lower

Note: When assembling, check to insure that the paper feed

paper guide lower is set to the rib A and the boss B.

i. Gate solenoid

Bearing

g. Paper feed paper guide upper

Note: When assembling, check to insure that the hook of the

paper exit gate is set in the concave section of the solenoid. When assembling, check to insure that the D-cut surface of

the bearing faces downward.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 48

7. Operation panel

(2) Electrical section and mechanical section

Operation panel unit

A. Operational descriptions

(1) Outline

The operation panel unit is composed of the operation key PWB, the inverter/LVDS PWB, the LCD unit, and the operation keys, and is used to operate the machine and to set and display the machine status.

The operation key PWB is connected to the ORS light receiving PWB for detecting the document size. It receives light from the ORS light emitting PWB attached to the rear frame, detecting the document size.

Document size

ORS light emitting PWB

detection

LCD unit

Touch panel

LCD

OCSW

Backlight

CN4 (20pin) CN1 (30pin)CN3 (2pin) 1

Vss (GND2)

LCD_D3

LCD_D2

LCD_D1

LCD_D0

Vss (GND2)

LCD-VEE

3.3V

LCD-DIS

Vss (GND2)

LCD-CP2

Vss (GND2)

LCD_CP1

LCD_M

LCD_S FLS

CN2 (5pin) 1

/YL

/XL FM

Inverter/LVDS PWB

BHHV/CCFT

LCDS+ LCDSLCDM+ LCDMLCDCP1+ LCDCP1GND2 LCDCP2+ LCDCP2GND2 LCDDIS LCD-VCC LCD-VEE LCDD0+ LCDD0LCDD1+ LCDD1LCDD2+ LCDD2LCDD3+ LCDD3GND2 TH GND2 +24V /CCFT YH /XL /YL XH FMZ

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 27 28 29 30

CN2 (6pin) CN1 (26pin) 1

PDSEL0

PDSEL1

PDSEL2

+5V

GND2 PH

Operation key PWB

ORS light receiving PWB

GND2

SCAN0

SCAN1

SCAN2

SCAN3

SCAN4

SENSE0

SENSE1

SENSE2

SENSE3

SENSE4

SEG0\

SEG1\

SEG2\

SEG3\

COM0

COM1

COM2

FRDY

/BZR

PDSEL0

PDSEL1

PDSEL2

+5V

GND2 FAZ

CN3 (30pin)

MFP PWB

CN6 (6pin)CN5 (26pin)

GND23OCSW4+24V5/LED06/LED1

+5V

(3) major parts functions and operations

No. Name Code, signal name Function RW Operation key PWB — Detects a pressed key on the operation panel. RW Inverter/LVDS PWB — Drives the LCD and the backlight, and controls the touch panel. RW ORS light receiving PWB — Receives light from the ORS light emitting PWB to detect the document size. RW ORS light emitting PWB — Emits light for detecting the document size. RW OC switch OCSW Timing switch for detecting the document size

RW: Abbreviation of Related Wiring, which means the said load is specified in the related figure of the mechanical and the electrical sec-

tions.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 49

B. Disassembly/assembly/maintenance

a. ORS light emitting PWB

1) Remove the upper cabinet rear cover and the upper cabinet rear unit.

2) Remove the screw, and remove the document size sensor unit. Remove the screw and the document size sensor, and remove the ORS light emitting PWB.

d. Operation key PWB

1) Remove the FD connection cabinet, the front cabinet upper, the FD paper exit port cabinet, and the operation panel plate.

2) Remove the screw, and remove A and B.

3) Remove the screw and the connector, and remove the operation unit.

4) Remove the screw and remove the operation key PWB.

b. OCSW

1) Remove the upper cabinet rear cover and the upper cabinet rear unit.

2) Remove the connector and the screw, and remove the OCSW.

c. ORS light receiving PWB

1) Remove the FD connection cabinet, the front cabinet upper, the FD paper exit port cabinet, and the operation panel plate.

2) Remove the connector and the screw, and remove the ORS light receiving PWB.

e. Inverter/LVDS PWB

1) Remove the FD connection cabinet, the front cabinet upper, the FD paper exit port cabinet, the operation panel plate, and the operation panel unit.

2) Remove the connector and the screw, and remove the inverter/LVDS PWB.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 50

8. External fitting

A. Disassembly

(1) Cabinet disassembly 1

1) Open the front cabinet.

2) Remove the front cabinet band. Pull out the slide pin (B), and remove the front cabinet (C).

(4) Cabinet disassembly 4

1) Remove the screw, and remove the rear cabinet (A). Remove the screw, and remove the DC power CFM unit (B) and the connector. Remove the screw, and remove the upper cabinet rear cover (C).

∗ When assembling, insert the boss in section D into the hole

in the frame.

(2) Cabinet disassembly 2

1) Remove the front cabinet.

2) Open the left cabinet. Remove the screw and remove the front frame cover.

(5) Cabinet disassembly 5

1) Remove the manual paper feed unit.

2) Pull out the cassette and the knob.

(3) Cabinet disassembly 3

1) Remove the screw, and slide the paper exit tray cabinet right to the right to remove.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 51

3) Open the front cabinet.

4) Remove the screw.

5) Lift the cabinet, and slide and remove the front right cabinet (A) upward.

(6) Cabinet disassembly 6

1) Remove the screws, and remove the glass holder right (A).

2) Remove the screws, and remove the scanner right cabinet (B).

3) Remove the screws, and remove the connection right cabinet (C).

(8) Cabinet disassembly 8

1) Remove the rear cabinet.

2) Remove the screws, and remove the FD connection cabinet (A) and the front cabinet upper (B). Remove the screws, and slide and remove the rear left cabinet cover (C) and the rear left cabinet (D) upward.

(7) Cabinet disassembly 7

1) Remove the rear cabinet.

2) Remove the manual paper feed unit.

3) Remove the front right cabinet.

4) Remove the screws, and slide and remove the rear right cabinet (A) upward.

5) Remove the screws, and slide and remove the right lower cabinet (B) upward.

(9) Cabinet disassembly 9

1) Remove the screws, and remove the FD paper exit port cabinet (A) and the operation panel plate (B).

(10) Cabinet disassembly 10

1) Remove the screw, and remove the upper cabinet rear cover. Remove the connector and the screw, and remove the upper cabinet rear unit.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 52

9. Others

A. Disassembly/assembly/maintenance

(1) Maintenance target parts

✕: Check (Clean, replace, or adjust as necessary.) ❍: Clean ▲

Unit name No. Part name

Filters 1 Ozone filter ✕ ▲▲▲▲▲▲▲▲

2 Sub ozone filter ✕ ▲▲▲▲▲▲▲▲

Drive section 3 Gears ✩ ✩✩✩✩✩✩✩✩

4Belts ✕ ✕✕✕✕✕✕✕✕

Others 5 Sensors ✕ ✕✕✕✕

When

calling

50K 100K 150K 200K 250K 300K 350K 400K Remark

: Replace ∆: Adjust ✩: Lubricate ❏: Shift position

5 5

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 53

(2) Maintenance parts and major parts replacement

a. Ozone filter

1) Remove the ozone filter cover, and remove the ozone filter.

<3> HDD

1) Remove the connector and the screws, and remove the HDD unit.

b. Sub ozone filter

1) Remove the sub ozone filter cover, and remove the sub ozone filter.

c. Printer controller PWB <1> Printer controller unit

1) Remove the screws, and remove the printer controller unit.

2) Remove the screws, and remove the HDD.

<4> FLASH PWB

1) Release lock, and remove the FLASH PWB.

<2> Network PWB

1) Remove the screws, and remove the network PWB.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 54

<5> Fan

1) Remove the connector, and remove the fan.

<6> PRT control PWB

1) Remove the screw, and remove the PRT control PWB.

<3> Power PWB

1) Remove the rear cabinet and the DC power CFM unit.

2) Remove the connector and the screw, and remove the power PWB.

d. PWB <1> PCU PWB

1) Remove the rear cabinet.

2) Remove the connector and the screw, and remove the PCU PWB.

<2> High voltage MC power PWB

1) Remove the rear cabinet.

2) Remove the connector, the screw, and the earth wire (commonly fixed), and remove the PCU PWB unit.

3) Remove the connector and the screw, and remove the high voltage MC power PWB.

<4> Driver PWB

1) Remove the rear cabinet, the rear left cabinet lid, and the rear left cabinet.

2) Remove the screw and the connector, and remove the driver PWB.

<5> AC PWB

1) Remove the screw, the rear cabinet, the rear left cabinet lid, and the rear left cabinet.

2) Remove the screw and the harness, and remove the driver PWB unit.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 55

3) Remove the harness and remove the AC PWB from the supporter.

<6> High voltage TC power PWB

1) Remove the rear cabinet, the DC power CFM unit, the rear left cabinet lid, and the rear left cabinet.

2) Remove the connector, the harness, and the screw. Remove the Power PWB unit.

<8> Drum drive unit

1) Remove the rear cabinet.

2) Remove the DC power CFM unit.

3) Remove the driver PWB unit.

4) Remove the PCU PWB unit.

5) Remove the screw and the connector, and remove the intake duct FAN.

6) Remove the screw and the intake duct.

7) Remove the high voltage MC PWB.

8) Remove the connector screw and the drum drive unit. ∗ Remove the eight screws which are indicated with an arrow

mark on the plate drive frame and are fixing the resin drive frame. (Never remove the screws which are fixing the plate drive frame upper.)

3) Remove the connector and the screw, and remove the high voltage TC power PWB.

<7> ICU PWB

1) Remove the paper exit tray cabinet right.

2) Remove the screw, and remove the box cover. Remove the screw, and remove the ICU PWB.

AR-C172M DESCRIPTIONS OF EACH SECTION 7 - 56

[8] SETTING AND ADJUSTMENTS

Each adjustment item in the adjustment item list is indicated with its JOB number. Perform the adjustment procedures in the sequence of Job numbers from the smallest to the greatest. However, there is no need to perform all the adjustment items. Perform only the necessary adjustments according to the need. Unnecessary adjustments can be omitted. Even in this case, however, the sequence from the smallest to the greatest JOB number must be observed. If the above precaution should be neglected, the adjustment would not complete normally or a trouble may occur.

JOB No ADJUSTMENT ITEM LIST SIMULATION

ADJ 1 High voltage adjustment ADJ 1A Main charger grid voltage adjustment 8-2

ADJ 1B DV bias voltage adjustment 8-1 ADJ 1C Transfer voltage adjustment 8-6

ADJ 2 Image density sensor adjustment ADJ 2A Color image density sensor adjustment (adjustment by the

ADJ 2B Black image density sensor adjustment 44-2 ADJ 3 Image focus, image skew adjustment (LED (writing) unit) 64-1/61-4 ADJ 4 Image registration adjustment ADJ 4A Image registration adjustment (Auto adjustment) 50-22

ADJ 4B Image registration adjustment (Manual adjustment) 50-20 ADJ 5 Image position/print area adjustment

(Print engine section)

ADJ 6 Copy image distortion adjustment ADJ 6A Scanner (reading) unit parallelism adjustment

ADJ 7 Copy image focus (main scanning direction copy magnification ratio) adjustment (CCD unit position adjustment) 48-1 ADJ 8 Sub scanning direction copy magnification ratio adjustment 48-1 ADJ 9 Main scanning direction copy image position adjustment (Scanner (reading) section) 50-12

ADJ 10 Copy image position/image loss/void area adjustment 50-1/50-2 ADJ 11 Copy color balance/density

adjustment

ADJ 12 Fusing pressure adjustment ADJ 13 Fusing paper guide position adjustment ADJ 14 Document size sensor adjustment ADJ 14A Original size sensor detection point adjustment 41-2

ADJ 15 Manual paper feed tray paper size sensor adjustment 40-2 ADJ 16 Touch panel coordinates setting 65-1 ADJ 17 Power voltage adjustment ADJ 17A 3.4 V power voltage adjustment

ADJ 18 FAX/scanner mode image loss adjustment 50-27 ADJ 19 RSPF scanning position automatic

adjustment

ADJ 20 RSPF lead edge skew adjustment ADJ 21 Collective adjustment of image

position and magnification ratio

ADJ 22 Printer color balance adjustment ADJ 20A Printer automatic color balance adjustment 67-24

∗1: By executing the collective adjustment of image position and magnification ratio (ADJ21) (Automatic void adjustment SIM50-28), the

adjustments of SIM50-10, 48-1, 50-12, and 50-1 can be simply and automatically performed at once.

ADJ 5A Main scanning direction image position adjustment

ADJ 5B Sub scanning direction image position/print area adjustment

ADJ 6B Copy image sub scanning direction distortion adjustment

ADJ 6C Copy image main scanning direction distortion adjustment

ADJ 6D Scan image distortion adjustment

ADJ 11A CCD gamma adjustment (CCD calibration)

ADJ 11B Copy color balance adjustment (Auto adjustment) 46-24 ADJ 11C Copy color balance adjustment (Manual adjustment) 46-21 ADJ 11D Copy density adjustment in low-density area

ADJ 11E Copy color balance density adjustment (each copy mode)

ADJ 11F CCD gamma adjustment (CCD calibration)

ADJ 11G Image edge section gamma/density adjustment

ADJ 11H Copy color balance adjustment (Single color Copy mode)

ADJ 11I Auto color balance adjustment by user (Copy color balance auto

ADJ 14B Original size sensor sensitivity adjustment 41-2

ADJ 17B 5.0 V power voltage adjustment

ADJ 19A RSPF scanning position automatic adjustment 53-8 ADJ 19B RSPF image lead edge adjustment 50-6

(∗1) 50-28

ADJ 20B Printer color balance adjustment (By the key operator program)

adjustment jig)

(Print engine section)

(Normal document copy mode)

(Normally unnecessary to adjust.)

(Copy document copy mode)

(Black text and black line reproduction adjustment) (Normally unnecessary to adjust.)

(Normally unnecessary to adjust.)

adjustment enable setting and adjustment)

44-13

50-10

50-5

63-3 (63-5)

46-1/2

46-10 to 16

63-9

46-27

46-25

26-53

AR-C172M SETTING AND ADJUSTMENTS 8 - 1

ADJ 1 High voltage adjustment

Since the output voltage cannot be checked directly due to the machine structure, the adjustment value of the simulation is set to the default (specified value) to perform the adjustment.

ADJ 1A Main charger grid voltage adjustment

1) Enter the SIM 8-2 mode.

This adjustment must be performed in the following cases:

• When the high voltage power PWB is replaced.

• When a U2 trouble occurs.

• When the PCU PWB is replaced.

• When the EEPROM of the PCU PWB is replaced.

Color Item Operation mode

K A: HIGH SPEED High speed (117mm/s) (B & W) 180 – 700 620 53.5 ± 0.2v CNMONK 1 –620v

B: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 180 – 700 620 53.5 ± 0.2v CNMONK 1 –620v C: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

C A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 180 – 700 620 53.5 ± 0.2v CNMON 3 –620v

B: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

M A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 180 – 700 620 53.5 ± 0.2v CNMON 7 –620v

B: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

Y A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 180 – 700 620 53.5 ± 0.2v CNMON 11 –620v

B: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

Remark: When the default value is set, the specified voltage is

outputted. There is, therefore, no need to check the output voltage unless there is a doubt for any abnormality in the output voltage. If there is a need to check that the normal voltage is outputted or to adjust by referring to the output voltage, use the method below.

1) Remove the rear cover of the machine.

2) Remove the image process fan motor and the duct.

2) Select the output mode to be adjusted with the color key and scroll key.

3) Enter the adjustment value (specified value), and press the [OK] key.

By entering the default value (specified value), the specified voltage is outputted.

Adjustment value

Adjustment

range

180 – 700 620 53.5 ± 0.2v CNMONK 1 –620v

180 – 700 620 53.5 ± 0.2v CNMON 3 –620v

180 – 700 620 53.5 ± 0.2v CNMON 7 –620v

180 – 700 620 53.5 ± 0.2v CNMON 11 –620v

3) Connect the high voltage adjustment harnesses (DHAi-

Specified

value

(Default)

3471FCZZ/DHAi-3472FCZZ) with the connectors CNMON and CNMONK on the high voltage PWB.

SIM 8-2

Main charger grid voltage

Monitor (High voltage PWB)

Monitor voltage

(Specified value)

Connector

No.

Actual

voltage

4) Enter the SIM8-1 mode.

5) Select the output mode to be adjusted with the color key and the scroll key.

6) Check that the pin numbers of the connectors CNMON and CNMONK are properly assigned to the connector pin numbers of the high voltage adjustment harness.

7) Apply a digital multi-meter to the connector pins of the high voltage adjustment harness corresponding to the output mode to be adjusted.

AR-C172M SETTING AND ADJUSTMENTS 8 - 2

8) Press the [EXECUTE] key. The main charger grid voltage is outputted for 30sec. If this operation is performed for a long time, the OPC drum

and the developing roller may be damaged. Be careful to perform this operation in a short time.

It is advisable to install an unnecessary developing unit and unnecessary OPC drums to the machine for this adjustment.

9) Check the monitor voltage with the digital multi-meter. If the monitor voltage is not in the above specified range,

change the adjustment value and adjust again. If the specified voltage is not obtained even by changing the adjustment value, the following parts may be judged as defective.

High voltage PWB PCU PWB Developing unit Photoconductor unit High voltage circuit electrode

Color Item Operation mode

K A: HIGH SPEED High speed (117mm/s) (B & W) 0 – 585 215 3.94 ± 0.1V CNMONK 3 –215v

B: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 0 – 585 215 3.94 ± 0.1V CNMONK 3 –215v C: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

C A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 0 – 585 265 5.76 ± 0.1V CNMON 1 –265v

B: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

M A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 0 – 585 265 5.76 ± 0.1V CNMON 5 –265v

B: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

Y A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W) 0 – 585 240 4.75 ± 0.1V CNMON 9 –240v

B: LOW SPEED Low speed (58.5mm/s) (Color) (B & W)

(Special paper)

Remark: When the default value is set, the specified voltage is

1) Remove the rear cover of the machine.

2) Remove the image process fan motor and the duct.

ADJ 1B DV bias voltage adjustment

This adjustment must be performed in the following cases:

• When the high voltage power PWB is replaced.

• When a U2 trouble occurs.

• When the PCU PWB is replaced.

• When the EEPROM of the PCU PWB is replaced.

1) Enter the SIM 8-1 mode.

SIM 8-1

2) Select the output mode to be adjusted with the color key and the scroll key.

3) Enter the adjustment value (specified value), and press the [OK] key.

By entering the default value (specified value), the specified voltage is outputted.

Adjustment value

Adjustment

range

0 – 585 215 3.94 ± 0.1V CNMONK 3 –215v

0 – 585 265 5.76 ± 0.1V CNMON 1 –265v

0 – 585 265 5.76 ± 0.1V CNMON 5 –265v

0 – 585 240 4.75 ± 0.1V CNMON 9 –240v

3) Connect the high voltage adjustment harnesses (DHAi-

Specified

value

(Default)

3471FCZZ/DHAi-3472FCZZ) with the connectors CNMON and CNMONK on the high voltage PWB.

Monitor (High voltage PWB)

Monitor voltage

(Specified value)

Developing bias voltage

Connector

No.

Actual

voltage

4) Enter the SIM8-2 mode.

5) Select the output mode to be adjusted with the color key and the scroll key.

6) Check that the pin numbers of the connectors CNMON and CNMONK are properly assigned to the connector pin numbers of the high voltage adjustment harness.

AR-C172M SETTING AND ADJUSTMENTS 8 - 3

7) Apply a digital multi-meter to the connector pins of the high voltage adjustment harness corresponding to the output mode to be adjusted.

8) Press the [EXECUTE] key. The developing bias voltage is outputted for 30sec. If this operation is performed for a long time, the OPC drum

and the developing roller may be damaged. Be careful to perform this operation in a short time.

It is advisable to install an unnecessary developing unit and unnecessary OPC drums to the machine for this adjustment.

9) Check the monitor voltage with the digital multi-meter. If the monitor voltage is not in the above specified range,

change the adjustment value and adjust again. If the specified voltage is not obtained even by changing the adjustment value, the following parts may be judged as defective.

High voltage PWB PCU PWB Developing unit Photoconductor unit High voltage circuit electrode

Item Print mode

A PLAIN SPX CL Color Normal paper 78mm/s 153 141 119 119 51 - 255 2222 B PLAIN DPX CL Color Normal paper(Duplex mode) 78mm/s 168 155 129 129 2.3 2.3 2.3 2.3 COHP1 CL ColorTransparency film 1 78mm/s204187153153 3333 D OHP2 CL Color Transparency film 2 58.5mm/s 137 150 153 163 1.7 2.2 3 3.3 E HEAVY P1 SPX CL Color Thick paper 1 58.5mm/s 158 146 122 122 2.1 2.1 2.1 2.1

F HEAVY P1 DPX CL Color Thick paper 1(Duplex mode) 58.5mm/s 188 173 142 142 2.7 2.7 2.7 2.7 G HEAVY P2 CL Color Thick paper 2 58.5mm/s 173 159 132 132 2.4 2.4 2.4 2.4 HENVELOPE CL ColorEnvelope 78mm/s153141119119 2222

I PLAIN SPX BW B & W Normal paper 117mm/s 168 2.3

J PLAIN DPX BW B & W Normal paper(Duplex mode) 117mm/s 178 2.5 K OHP1 BW B & W Transparency film 1 78mm/s 204 3

L OHP2 BW B & W Transparency film 2 58.5mm/s 137 1.7 M HEAVY P1 SPX BW B & W Thick paper 1 58.5mm/s 147 1.9 N HEAVY P1 DPX BW B & W Thick paper 1(Duplex mode) 58.5mm/s 178 2.5 O HEAVY P2 BW B & W Thick paper 2 58.5mm/s 163 2.2 P ENVELOPE BW B & W Envelope 117mm/s 168 2.3

ADJ 1C Transfer voltage adjustment

This adjustment must be performed in the following cases:

• When the high voltage power PWB is replaced.

• When a U2 trouble occurs.

• When the PCU PWB is replaced.

• When the EEPROM of the PCU PWB is replaced.

1) Enter the SIM 8-6 mode.

SIM 8-6

2) Select the mode to be adjusted with the color key and scroll key.

3) Enter the adjustment value (specified value), and press the [OK] key.

By entering the default value (specified value), the specified voltage is outputted.

Standard setting

value (Default)

KCMY KCMY

Adjustment

range

Output voltage (Kv)

Color Actual output variable range Voltage change/Adjustment value (1) (Varying amount when the adjustment value is changed by 1)

K 0 to 4000V About 19.6V C 0 to 4500V About 22.1V M 0 to 6000V About 29.4V Y 0 to 6000V About 29.4V

Press the [EXECUTE] key to output the transfer voltage.

ADJ 2 Image density sensor adjustment

The image density sensor sections are of uneven quality in parts and assembly. This causes variations in the absolute detection level between machines. This adjustment (calibration) is performed to correct the variations.

This adjustment is required in the following cases:

• When the image density sensor is replaced.

• When the transfer unit is replaced.

• When maintenance is performed.

• When U2 trouble occurs.

• When the PCU PWB is replaced.

• When the EEPROM on the PCU PWB is repalced.

AR-C172M SETTING AND ADJUSTMENTS 8 - 4

The targets of the adjustment are the color image density sensor and the black image density sensor. There are following adjustment methods:

• Color image density sensor adjustment (adjustment by the

adjustment jig) SIM44-13

• Black image sensity sensor adjustment SIM44-2

• Image density sensor adjustment (The color image density sen-

sor and the black image density sensor are adjusted at the same time.) (Simple adjustment) SIM44-36

Normally the following adjustments are executed:

• ADJ 2A Color image density sensor adjustment (adjustment by

the adjustment jig) (SIM44-13)

• ADJ 2B Black image density sensor adjustment (SIM44-2)

Note:

There are two methods to adjust the color image density sensor; one method uses the adjustment jig, and the other method does not use it.

If there is no adjustment jig available, the simple adjustment (SIM44-36) can be made, which may, however, result in insufficient adjustment accuracy depending on the machine condition.

If toner, the OPC drum, and the transfer belt are not new ones or almost new ones, the simple adjustment is not recommended.

Even though the machine conditions are well, the adjustment by use of the adjustmment jig gives a higher adjustment accuracy than the adjustment without the adjustment jig (simple adjustment).

Also note that SIM44-36 must not executed unnecessarily after execution of the color image density sensor adjustment (adjustment by the adjustment jig) with SIM44-13.

If SIM 44-36 is executed, the contents of the color image density sensor adjustment (adjustment by the adjustment jig) with SIM4413 are erased, and the adjustment result of SIM44-36 is saved.

When the color image density sensor is adjusted with SIM44-13 and the black image density sensor is adjsuted with SIM 44-2, the adjustment with SIM44-36 is not required.

To adjust the black image density sensor, the adjustment jig is not required.

Before executing this adjustment, check the following items:

• Check that the color imagte density sensor is clean.

• Check that the image density sensor calibration plate is clean.

• Check that the transfer belt is free from scratches.

ADJ 2A Color image density sensor

adjustment (adjustment by the adjustment jig)

1) Open the front cover of the machine.

2) Insert the color image density sensor adjustment jig (CPLTM6305FC01) into the long hole in the transfer unit frame, and close the left cabinet.

Min

Max

Display Content

APCS_C

CARB ADJ

BPCS_C

DARK

CPCS_C

LED ADJ

7) Remove the color image density sensor adjustment jig. If the adjustment is not completed normally, "ERROR" is dis-

played. In that case, check the following sections for no abnormality. If

there is any abnormality, repair the part and perform the adjustment again. In case of an error, the adjustment result is not revised.

• Image density sensor

• PCU PWB

• Transfer belt

Color image density sensor LED current adjustment target value

Color image density sensor dark voltage level

Color image density sensor current adjustment value

Value

1 255 108

0 255 0

1 255 51

Value

Default

value

Note:

The color image density sensor adjustment jig is available in the following two forms:

• The jig metal plate with the calibration sheet attached to it (CPLTM6305FC01)

ADJ 2B Black image density sensor

adjustment

1) Enter the SIM44-2 mode.

3) With the front cover of the machine open (with the cover open/ close switch OFF), turn on the power.

4) Perform

SIM 44-13

5) Close the front cover of the machine.

6) Press the [EXECUTE] key. The adjustment is performed automatically. When the adjust-

ment is completed, the adjustment result is displayed and the the [EXECUTE] key display returns to the original state.

2) Press the [EXECUTE] key. The adjustment is performed automatically. When the adjust-

ment is completed, the adjustment result is displayed and the the [EXECUTE] key display returns to the original state.

Min

Display Content

APCS_C

LED ADJ

BPCS K

LED ADJ

CPCS_K

GAIN

DPCS_K

DARK

EPCS_K

GRND

F BELTMAX Transfer belt surface

G BELTMIN Transfer belt surface

Color image density sensor LED current adjustment value Black image density sensor LED Current adjustment value Black image density sensor output gain (AMP) adjustment value Black image density sensor dark voltage level Black image density sensor transfer belt surface detection level

max. detection level (Black image sensor)

min. detection level (Black image sensor)

Max

Value

1 255 51

015 0

0 255 0

Default

value

AR-C172M SETTING AND ADJUSTMENTS 8 - 5

Min

Max

Display Content

H BELTDIF Difference between the

max. value and the min. value of the transfer belt surface detection level (BELTMAX-BELTMIN)

If the adjustment is not completed normally, "ERROR" is displayed.

In that case, check the following sections for no abnormality. If there is any abnormality, repair the part and perform the adjustment again.

In case of an error, the adjustment result is not revised.

• Image density sensor

• PCU PWB

• Transfer belt

Value

0 255 0

Value

Default

value

ADJ 3 Image focus, image skew

adjustment (LED (writing) unit)

6) Check the printed focus adjustment pattern for each color. If focus is proper, the half-tone belts are printed properly.

When four or five half-tone belts of each color are printed and there is no density difference in the main scanning direction (back and forth), the focus is proper both on the front and the back sides.

Paper exit direction

(1) LED print engine image focus adjustment (LED

(writing) unit)

This adjustment must be performed in the following cases:

• When the scanner (writing) unit is replaced.

• When the scanner (writing) unit is removed from the machine.

• When the print image is shifted.

(Especially conspicuous for text and line drawings) (The scanner (reading) unit is normal, but the print image focus of the print engine is not normal.)

• When there is uneven density in the main scanning direction.

• When the color balance adjustment does not result in proper

color matching.

• When in installation or when the installing site is changed. (Necessary depending on the case)

1) Execute the process correction forcibly. (SIM44-6)

This simulation is used to correct the print density of the adjustment pattern.

2) Enter the SIM 61-4 mode.

SIM 61-4

3) Set the items A, B and C according to the table below.

Parameter Set value A PRINT PATTERN 2 B LINE PITCH 7 C POSITION 6

4) Select the A4 (11 x 8 1/2) paper feed tray.

5) Press the [EXECUTE] key. The focus adjustment pattern is printed.

Front side

Check that the half-tone belts of each color are printed in good balance.

7) If the above condition is not satisfied, turn the focus adjustment screws on the front/rear frame sides to adjust focus.

Focus on the front side can be separately adjusted from focus on the rear side.

Front frame side

AR-C172M SETTING AND ADJUSTMENTS 8 - 6

A B

0.5mm or less

Comparison line

Rear frame side

Execute procedures 4 to 6 for each color.

(2) Print engine image skew adjustment (LED (writing)

unit)

This adjustment must be performed in the following cases:

• When the scanner (writing) unit is replaced.

• When the scanner (writing) unit is removed from the machine.

• When the print image includes skew.

(When the scanner (reading) unit is normal and the print image of the print engine includes skew.)

• When a color image registration error occurs. (There is an image registration difference in the main scanning direction.)

• When there is uneven density in the main scanning direction.

• When the color balance adjustment does not result in proper

color matching.

• When in installation or when the installing site is changed. (Necessary depending on the case)

1) Enter the SIM 64-1 mode.

Longitudinal direction

Right-angle

Reference line

6) If the above conditions are not satisfied, remove the developing unit and turn the print engine image skew adjustment screw to adjust.

At that time, use SIM 7-1 to set DV CHECK DISABLE to Enable and to disable the developing unit installation detection.

If skew is made in the arrow direction A, turn the adjustment screw clockwise. If skew is made in the arrow direction B, turn the adjustment screw counterclockwise.

SIM 64-1

2) Set the items A and B according to the table below. Parameter Set value

A PRINT PATTERN 1 BDENSITY 1

3) Select the A3 (11 x 17) size paper feed tray.

4) Select Black (K) and press the [EXECUTE] key.

The grid patter (one page) is printed.

5) Check the printed grid pattern. (Check for image skew (distor-

tion).) If the right-angle level of the traverse print line is 0.5mm or

less for the longitudinal print line of paper, there is no need to adjust.

AR-C172M SETTING AND ADJUSTMENTS 8 - 7

7) Enter the SIM 61-4 mode.

SIM 61-4

8) Select the A4 (11 x 8.5) size paper feed tray.

9) Press the [EXECUTE] key. The print engine image skew adjustment pattern is printed.

(One page)

Sharp AR-C172M Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

[1] OUTLINE

1. Product features

2. Newly employed technology

[2] CONFIGURATION

1. Product Line and options

A. Line of machines

B. Line of options

C. Machine configuration list

D. Combination of options list

2. Block diagram

[3] SPECIFICATIONS

1. Basic specifications

A. Base engine

B. Paper feed unit

C. Paper exit unit

D. Scanner section

2. Functional specifications

B. Scanner functon (Option)

C. Reversing single pass feeder

3. Environment conditions

A. Operating environment conditions

B. Transit environment conditions

C. Supply storage environment conditions

D. Standard temperature and humidity

[4] CONSUMABLE PARTS

1. Supply system table

A. European Subsidiary

2. Consumables (kit, unit)

3. Photoconductor cartridge, toner cartridge

A. Lot number identification and the term of validity

[5] UNPACKING AND INSTALLATION

1. Installing (use) conditions

A. Bringing space

B. Installing space

D. Floor strength and level

2. Transit and delivery

A. Implements, facility, and manpower

B. Delivery

3. Unpacking

A. Unpacking procedure

4. Lock release

A. Scanner (2/3 mirror unit) lock release

B. Main body cassette lock release

C. Transfer unit pressure release

5. Fusing heat roller pressing (F/R)

6. Black drum cartridge insertion

8. Toner cartridges installation

7. Paper exit tray installation (Optional)

9. AC cord connection

10. Machine power ON

11. Specifications setup

12. Image quality check

13. Function and operation check

14. Setup and adjustment data recording

15. Necessary works before moving the machine

[6] EXTERNAL VIEW AND INTERNAL STRUCTURE

1. Name and function of each section

A. External view

B. Internal structure

C. Operation panel

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

E. Cross section

F. Motors, clutches, solenoids, fans

G. Sensors, switches and heaters

H. PWB 1

H. PWB 2

[7] DESCRIPTIONS OF EACH SECTION

1. Fusing section

A. Operational descriptions

B. Disassembly/Assembly/Maintenance

2. Transfer section

A. Operational descriptions

B. Disassembly/assembly/maintenance

3. Process (image forming) section

A. Operational descriptions

B. Disassembly/assembly/maintenance