Ricoh D127, D128 Service Manual

D127/D128

SERVICE MANUAL

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It is the reader's responsibility when discussing the information contained within this document to maintain a level of confidentiality that is in the best interest of Ricoh Americas Corporation and its member companies.

NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY

FASHION AND DISTRIBUTED WITHOUT THE PRIOR

PERMISSION OF RICOH AMERICAS CORPORATION.

All product names, domain names or product illustrations, including desktop images, used in this document are trademarks, registered trademarks or the property of their respective companies.

They are used throughout this book in an informational or editorial fashion only and for the benefit of such companies. No such use, or the use of any trade name, or web site is intended to convey endorsement or other affiliation with Ricoh products.

2012 RICOH Americas Corporation. All rights reserved.

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WARNING

The Service Manual contains information regarding service techniques, procedures, processes and spare parts of office equipment distributed by Ricoh Americas Corporation. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program.

Untrained and uncertified users utilizing information contained in this service manual to repair or modify Ricoh equipment risk personal injury, damage to property or loss of warranty protection.

Ricoh Americas Corporation

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LEGEND

PRODUCT		COMPANY
CODE
	LANIER	RICOH	SAVIN
D127	MP 301SP	Aficio MP 301SP	MP 301SP
D128	MP 301SPF	Aficio MP 301SPF	MP 301SPF

DOCUMENTATION HISTORY

REV. NO.

DATE

COMMENTS

*06/2012 Original Printing

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D127/D128

TABLE OF CONTENTS

1. PRODUCT INFORMATION...........................................................	1-1
1.1 SPECIFICATIONS .....................................................................................	1-1
1.2 MACHINE CONFIGURATION ...................................................................	1-2
1.2.1 MAINFRAME ....................................................................................	1-2
1.2.2 SYSTEM COMPONENTS ................................................................	1-3
1.3 OVERVIEW................................................................................................	1-4
1.3.1 COMPONENT LAYOUT ...................................................................	1-4
Mainframe ............................................................................................	1-4
ARDF ...................................................................................................	1-5
1.3.2 ELECTRICAL COMPONENTS .........................................................	1-6
Electrical Components 1 ......................................................................	1-6
Electrical Components 2 ......................................................................	1-7
ARDF ...................................................................................................	1-8
1.3.3 PAPER PATH ...................................................................................	1-9
1.3.4 DRIVE LAYOUT .............................................................................	1-	10
Mainframe ..........................................................................................	1-	10
ARDF ................................................................................................	1-	11
1.4 GUIDANCE FOR THOSE WHO ARE FAMILIAR WITH PREDECESSOR
PRODUCTS...................................................................................................	1-	12

2. INSTALLATION.............................................................................		2 - 1
2.1 INSTALLATION CAUTIONS......................................................................		2 -1
2.2 INSTALLATION REQUIREMENTS............................................................		2 -2
2.2.1 ENVIRONMENT ...............................................................................		2 - 2
2.2.2 MACHINE LEVEL .............................................................................		2 -2
2.2.3 MINIMUM OPERATIONALSPACE REQUIREMENTS		....................2-3
2.2.4 POWER REQUIREMENTS ..............................................................		2 -4
2.3 COPIER .....................................................................................................		2 - 5
2.3.1 ACCESSORY CHECK......................................................................		2 -5
Printer/Scanner (D127)/ Scanner and Fax Model (D128).....................		2-5
Installation Procedure...........................................................................		2 -6
Interface settings..................................................................................		2 - 9
SM	i	D127/D128

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Copier settings .....................................................................................	2-9
Fax Settings .......................................................................................	2-	10
2.3.2 OPTIONAL HANDSET....................................................................	2-	10
Accessory Check................................................................................	2-	10
Installation Procedure.........................................................................	2-	11
2.4 PAPER TRAY UNIT (D661).....................................................................	2-	12
2.4.1 ACCESSORY CHECK....................................................................	2-	12
2.4.2 INSTALLATION PROCEDURE ......................................................	2-	12
2.5 PAPER TRAY UNIT HEATER .............................................................	...2-	15
2.5.1 ACCESSORY CHECK....................................................................	2-	15
2.5.2 INSTALLATION PROCEDURE (FOR ONE OF PTU INSTALLED
MACHINE) ...............................................................................................	2-	17
2.5.3 INSTALLATION PROCEDURE (FOR TWO OF PTU INSTALLED
MACHINE) ...............................................................................................	2-	21

2.5.4JOINT BRACKET (JOINT THE COPIER AND THE UPPER PTU) . 2-27

2.5.5JOINT BRACKET (JOINT THE UPPER AND THE LOWER PTU) . 2-28

2.6 CONTROLLER OPTIONS .......................................................................		2 -	29
2.6.1 OVERVIEW ....................................................................................		2 -	29
2.6.2 WIRELESS LAN (IEE 802.11A/G) INSTALL ATION		.....................2- 30
Accessories........................................................................................		2 -	30
Installation Procedure.........................................................................		2 -	30
SP Mode Settings for IEEE 802.11a/g Wireless LAN.........................		2- 31
2.6.3 IEEE 1284 INSTALLATION ............................................................		2 -	31
Accessories........................................................................................		2 -	31
Installation Procedure.........................................................................		2 -	32
2.6.4 VM CARD TYPE S (D656)..............................................................		2 -	33
Accessories........................................................................................		2 -	33
Installation..........................................................................................		2 -	33
2.6.5 GIGABIT ETHERNET .....................................................................		2 -	34
2.6.6 FAX OPTION (D655) ......................................................................		2 -	35
Component Check..............................................................................		2 -	35
Installation Procedure.........................................................................		2 -	36
Grounding Wire ..................................................................................		2 -	37
2.6.7 HDD OPTION (D659) .....................................................................		2 -	38
Component Check..............................................................................		2 -	38
Installation Procedure.........................................................................		2 -	39
Installing the Security Card ................................................................		2 -	40
Activating the Security Applications....................................................		2-	41
D127/D128	ii		SM

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HDD Encryption Recovery from a Device Problem	............................2- 41
Restoring the Encryption key .............................................................	2 -	42
Clearing the NVRAM ..........................................................................	2 -	43

3. PREVENTIVE MAINTENANCE.....................................................		3-1
3.1 MAINTENANCE TABLES ..........................................................................		3-1
3.2 HOW TO CLEAR THE PMCOUNTER ......................................................		3-2
4. REPLACEMENT AND ADJUSTMENT .........................................		4-1
4.1 PRECAUTIONS .........................................................................................		4-1
	4.1.1 GENERAL.........................................................................................	4-1
	4.1.2 LITHIUM BATTERIES.......................................................................	4-1
	4.1.3 HALOGEN-FREE CABLE............................................................	....4-1
	4.1.4 STATIC ELECTRICITY.....................................................................	4-1
4.2 SPECIAL TOOLS AND LUBRICANTS ......................................................		4-2
4.3 EXTERIOR COVERS AND OPERATION PANEL .....................................		4-3
	4.3.1 REAR COVER ..................................................................................	4-3
	4.3.2 COPY TRAY .....................................................................................	4-3
	4.3.3 OPERATION PANEL ........................................................................	4-4
	4.3.4 RIGHT DOOR...................................................................................	4-5
	4.3.5 BYPASS TRAY.................................................................................	4-5
	4.3.6 PLATEN COVER AND ARDF SENSOR...........................................	4-6
4.4 SCANNER UNIT ........................................................................................		4-7
	4.4.1 SCANNER COVER AND EXPOSURE GLASS ................................	4-7
	4.4.2 LED UNIT .........................................................................................	4-8
	4.4.3 SCANNER MOTOR..........................................................................	4-9
	4.4.4 SCANNER HP SENSOR ..................................................................	4-9
4.5 FUSING ...................................................................................................		4-	10
	4.5.1 FUSING UNIT.................................................................................	4-	10
	4.5.2 EXIT SENSOR................................................................................	4-	10
	4.5.3 HOT ROLLER STRIPPERPAWLS.................................................	4-	11
	4.5.4 HOT ROLLER AND FUSING LAMP ...............................................	4-	12
	4.5.5 THERMOSWITCHES AND THERMISTOR ....................................	4- 13
	4.5.6 PRESSURE ROLLER.....................................................................	4-	14
	4.5.7 FUSING NIP BAND CHECK BYPASS (CHECKING THE NIP BAND)
	4-15
4.6 PCU AND QUENCHING LAMP ...............................................................		4-	16
	4.6.1 PCU ................................................................................................	4-	16
	4.6.2 QUENCHING LAMP .......................................................................	4-	17
SM	iii	D127/D128

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4.7 EXHAUST FAN AND MAIN MOTOR .......................................................			4-	18
4.7.1 EXHAUST FAN...............................................................................			4-	18
4.7.2 MAIN MOTOR ................................................................................			4-	19
4.8 PAPER FEED ..........................................................................................			4-	21
4.8.1 PAPER FEED ROLLER AND FRICTION PAD ...............................			4- 21
4.8.2 PAPER END SENSOR ...................................................................			4-	22
4.8.3 REGISTRATION SENSOR.............................................................			4-	23
4.8.4 BYPASS PAPER END SENSOR....................................................			4-	24
4.8.5 BYPASS FEED ROLLER................................................................			4-	25
4.8.6 BYPASS FEED CLUTCH NDA FRICTION PAD .............................			4- 26
4.8.7 PAPER FEED AND REGISTRATION CLUTCHES ........................			4- 27
4.9 IMAGE TRANSFER .................................................................................			4-	28
4.9.1 TRANSFER ROLLER .....................................................................			4-	28
4.9.2 ID SENSOR AND DUPLEX ROLLER .............................................			4-	29
4.9.3 DISCHARGE PLATE ......................................................................			4-	31
4.10	BICU AND CONTROLLERBOARD ...................................................		4-	32
4.10.1		BICU ...........................................................................................	4-	32
	Preparation.........................................................................................		4-	32
	Procedure...........................................................................................		4-	32
4.10.2		CONTROLLER BOARD..............................................................	4-	33
	Preparation:........................................................................................		4-	33
	Procedure...........................................................................................		4-	33
	When installing a new controller board...............................................		4-	35
	When replacing the NVRAM on the controller board..........................		4- 36
4.11	OTHER REPLACEMENTS ................................................................		4-	37
4.11.1		DUPLEX MOTOR .......................................................................	4-	37
4.11.2 HIGH-VOLTAGE POWER SUPPLY BOARD .............................			4- 38
4.11.3		PSU ............................................................................................	4-	39
4.11.4		CONTACT-RELEASE SOLENOID .............................................	4-	40
4.11.5		TONER SUPPLY MOTOR..........................................................	4-	40
4.11.6		FCU ............................................................................................	4-	41
	Lithium Batteries.................................................................................		4-	41
	Procedure...........................................................................................		4-	41
4.12	LASER UNIT ......................................................................................		4-	43
4.12.1 LOCATION OF THE CAUTION DECAL .....................................			4- 43
4.12.2		LASER UNIT...............................................................................	4-	44
4.12.3 LD UNIT AND POLYGONMIRROR MOTOR .............................			4- 45
4.13	ARDF ................................................................................................		4-	46
D127/D128		iv		SM

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4.13.1	ARDF UNIT.................................................................................	4-	46
When installing the ARDF ..................................................................		4-	47
4.13.2	ARDF REAR COVER .............................................................	...4-	47
4.13.3	ORIGINAL FEED UNIT...............................................................	4-	48
4.13.4	PICKUP ROLLER......................................................................	4-	49
4.13.5	FEED ROLLER...........................................................................	4-	50
4.13.6	FRICTION PAD ..........................................................................	4-	51
4.13.7	DFRB..........................................................................................	4-	52
4.13.8 ARDF TOP COVER SENSOR/ ORIGINAL SET SENSOR.........		4- 52
4.13.9	ARDF DRIVE MOTOR................................................................	4-	53
4.13.10	WHITE PLATE..........................................................................	4-	55
When installing the white plate...........................................................		4-	55
4.13.11	REGISTRATION SENSOR.......................................................	4-	56
4.14 ADJUSTING COPY IMAGE AREA.....................................................		4-	57
4.14.1	PRINTING...................................................................................	4-	57
Adjusting Registration ........................................................................		4-	57
Adjusting Blank Margin.......................................................................		4-	59
Adjusting MainScan Magnification ....................................................		4-	60
4.14.2	SCANNING.................................................................................	4-	60
Adjusting Registration ........................................................................		4-	60
Adjusting Magnification ......................................................................		4-	61
4.14.3	DF IMAGE ADJUSTMENT .........................................................	4-	62

5. SYSTEM MAINTENANCE REFERENCE .....................................		5-1
5.1 SERVICE PROGRAM................................................................................		5-1
	5.1.1 SP TABLES ......................................................................................	5-1
	5.1.2 USING SP AND SSP MODES..........................................................	5-1
	Starting SP Mode .................................................................................	5-1
	Selecting Programs..............................................................................	5-2
	Specifying Values.................................................................................	5-2
	Activating Copy Mode ..........................................................................	5-2
	Quitting Programs/Ending (S) SP Mode...............................................	5-2
	Conventions used in the tables: ...........................................................	5-2
5.2 USING SP MODE ......................................................................................		5-3
	5.2.1 NVRAM DATA UPLOAD/DOWNLOAD.............................................	5-3
	Uploading Content of NVRAM to an SD card.......................................	5-3
	Downloading an SD Card to NVRAM...................................................	5-3
	5.2.2 FIRMWARE UPDATE PROCEDURE ...............................................	5-4
	Before You Begin…..............................................................................5-4
SM	v	D127/D128

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Firmware Update Procedure ................................................................	5-5
Error Messages....................................................................................	5-6
Firmware Update Error.........................................................................	5-7
Recovery after Power Loss ..................................................................	5-7
5.2.3 BROWSER UNIT UPDATEPROCEDURE .......................................	5-8
5.2.4 HANDLING FIRMWARE UPDATE ERRORS ...................................	5-9
Error Message Table............................................................................	5-9
5.2.5 TEST PATTERN PRINT (SP2-109-001).........................................	5-	11
Executing Test Pattern Printing..........................................................	5-	11
Test Patterns......................................................................................	5-	11
5.2.6 MEMORY CLEAR...........................................................................	5-	12
Exceptions..........................................................................................	5-	13
Memory Clear Procedure ...................................................................	5-	13
5.2.7 SMC PRINT (SP5-990)...................................................................	5-	14
5.2.8 ID SENSOR ERROR ANALYSIS (SP2-220) ..................................	5- 14
5.3 FAX SERVICE TABLES...........................................................................	5-	15

6. TROUBLESHOOTING...................................................................	6-1
6.1 SC TABLES ...............................................................................................	6-1
6.1.1 SUMMARY .......................................................................................	6-1
6.1.2 ENGINE SC CODE DESCRIPTIONS ...............................................	6-2
6.1.3 SC CODE DESCRIPTIONS............................................................	6-	15
SC6xx................................................................................................	6-	15
SC8xx................................................................................................	6-	20
SC9xx................................................................................................	6-	39
6.2 ELECTRICAL COMPONENT DEFECTS.................................................	6-	42
6.2.1 SENSOR/SWITCH..........................................................................	6-	42
6.2.2 BLOWN FUSE CONDITIONS .........................................................	6-	44
6.3 CARD SAVE FUNCTION.........................................................................	6-	45
6.3.1 OVERVIEW ....................................................................................	6-	45
Card Save: .........................................................................................	6-	45
6.3.2 PROCEDURE.................................................................................	6-	45
Error Messages..................................................................................	6-	47
6.4 FAX TROUBLESHOOTINGGUIDE .........................................................	6-	48

7. ENERGY SAVING .........................................................................		7-1
7.1 ENERGY SAVE .........................................................................................		7-1
7.1.1 ENERGY SAVER MODES ...............................................................		7-1
Timer Settings ......................................................................................		7-1
D127/D128	vi	SM

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Recommendation .................................................................................		7-2
7.1.2 ENERGY SAVE EFFECTIVENESS ..................................................		7-2
7.2 PAPER SAVE ............................................................................................		7-4
7.2.1 EFFECTIVENESS OF DUPLEX/COMBINE FUNCTION..................		7-4
1.	Duplex: .............................................................................................	7-4
2.	Combine mode:................................................................................	7-4
3.	Duplex + Combine:...........................................................................	7-5
Recommendation .................................................................................		7-5
D127/D128...........................................................................................		7-6

SM

vii

D127/D128

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READ THIS FIRST

Important Safety Notices

Prevention of Physical Injury

1.Be sure that the power cord is unplugged before disassembling or assembling parts of the copier or peripherals.

2.The wall outlet should be near the copier and easily accessible.

3.Note that electrical voltage is supplied to some components of the copier and the paper tray unit even while the main power switch is off.

4.If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components.

5.If you start a job before the copier completes the warm-up or initializing period, keep hands away from the mechanical and electrical components until job execution has started. The copier will start making copies as soon as warm-up or initialization is finished.

6.The inside and the metal parts of the fusing unit become extremely hot while the copier is operating. Be careful to avoid touching those components with your bare hands.

Health Safety Conditions

Toner and developer are nontoxic, but getting either of these into your eyes may cause temporary eye discomfort. Try to remove with eye drops or flush with water. If material remains in eye or if discomfort continues, get medical attention.

Observance of Electrical Safety Standards

The copier and its peripherals must be installed and maintained by a customer service representative who has completed the training course on those relevant models.

Keep the machine away from flammable liquids, gases, and aerosols. A fire or an explosion might occur if this precaution is not observed.

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Lithium Batteries

Incorrect replacement of lithium battery(s) on the FCU, controller board and memory board unit may pose risk of explosion. Replace only with the same type or with an equivalent type recommended by the manufacturer. Discard used batteries in accordance with the manufacturer's instructions.

Safe and Ecological Disposal

1.Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly if exposed to an open flame.

2.Dispose of used toner, developer, and organic photoconductors in accordance localwith regulations. (These are nontoxic supplies.)

3.Dispose of replaced parts in accordance with local regulations.

4.When keeping used lithium batteries in order to dispose of them later, do not put more than 100 batteries per sealed box. Storing larger numbers or not sealing them apart may lead to chemical reactions and heat buildup.

Laser Safety

The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based optical units in the field. The optical housing unit can only be repaired in a factory or at a location with the requisite equipment. The laser subsystem is replaceable in the field by a qualified Customer Engineer. The laser chassis is not repairable in the field. Customer engineers are therefore directed to return all chassis and laser subsystems to the factory or service depot when replacement of the optical subsystem is required.

Use of controls not specified in this manual, or performance of adjustments or procedures not specified in this manual, may result in hazardous radiation exposure.

Do not use the cleaner to suck spilled toner (including used toner). Sucked toner may

cause firing or explosion due to electrical contact flickering inside the cleaner. However, it is possible to use the cleaner designed for dust explosionproof purpose. If toner is spilled over the floor, sweep up spilled toner slowly and clean remainder with wet cloth.

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WARNING FOR LASER UNIT

Turn off the main switch before attempting any of the procedures in the Laser

Unit section. Laser beams can seriously damage your eyes.

CAUTION MARKING:

Symbols and Abbreviations

This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations is as follows:

	See or Refer to
	Clip ring
	E-ring
	Screw
	Connector
	Clamp
SEF	Short Edge Feed
LEF	Long Edge Feed

-Core Technology manual

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Cautions, Notes, etc.

The following headings provide special information:

Failure to obey warning information could result in serious injury or death.

Obey these guidelines to ensure safe operation and prevent minor injuries.

This information provides tips and advice about how to best service the machine.

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PRODUCT INFORMATION

REVISION HISTORY

Page

Date

Added/Updated/New

None

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1. PRODUCT INFORMATION

1.1 SPECIFICATIONS

See "Appendices" for the following information:

General Specifications

Supported Paper Sizes

SM

1-1

Specifications

Information

Product

D127/D128

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Machine Configuration

1.2 MACHINE CONFIGURATION

1.2.1 MAINFRAME

		Standard Component	Machine Code	Remarks
	1	Copier [A]	D127/D128	-
	2	ARDF [C]	D606	Standard expect for EU
				Option for EU
	3	Platen Cover	D607	Standard for EU
	4	Fax Unit [D]	D655	Standard only for D128
				Option only for D127

	Optional Components	Machine Code	Remarks
5	500-sheet Paper Feed Unit [B]	D661	Two units can be added
			at maximum.
6	Handset [F]	D645	NA only
D127/D128		1-2		SM

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Machine Configuration

1.2.2 SYSTEM COMPONENTS

Information

Product

Item	Machine Code		Remarks
Controller Box	-	[A]	Standard
Printer/Scanner unit	D468	[B]	SD card for the Printer/Scanner Unit
			Standard
FAX Option	D655	[F]
FAX Connection Unit	D660	[B]
Browser Unit	D656	[B]
VM Card	D656	[C]	In SD slot 2 (lower)
Net Ware	D659	[C]	SD Card for Net Ware printing Type 1
IEEE 1284	B679	[D]
			One from the two
Gigabit Ethernet	G874	[D]
Board
			Optional HDD with Interface board
HDD	D659	[E]	Merge the Security Card into the
			Printer/Scanner SD card.
SM		1-3	D127/D128

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Overview

1.3 OVERVIEW

1.3.1 COMPONENT LAYOUT

Mainframe

1.	Exposure Glass	17.	Bypass Tray
2.	LED Unit	18.	Bypass Paper End Sensor
3.	Platen Cover Sensor	19.	Bypass Friction Pad
4.	Exit Roller	20.	Registration Roller
5.	Hot Roller	21.	Registration Sensor
6.	Exit Sensor	22.	(Main) Friction Pad
7.	Pressure Roller	23.	Paper Feed Roller
8.	Scanner Motor	24.	Paper End Sensor
9.	Cleaning Web Roller	25.	TD (Toner Density) Sensor
D127/D128		1-4		SM

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				Overview
10.	Toner Collection Coil	26.	Bottom Plate
						Product Information
12.	OPC drum	28.	Laser Unit
11. Cleaning Blade		27.	Polygon Mirror Motor
13.	Discharge Plate	29.	Mixing Augers
14.	Transfer Roller	30.	Development Roller
15.	ID (Image Density) Sensor	31.	Toner Supply Bottle
16.	Bypass Paper Feed Roller	32.	Scanner HP Sensor

ARDF

1.	Pull-out Roller	10.	Registration Roller
2.	Feed Roller	11. Registration Sensor
3.	Friction Pad	12.	Scanner Guide
4.	Paper Stopper	13. ARDF drive motor
5.	Pick-up Roller	14.	Exit Roller
6.	Original Set Feeler	15.	Junction Gate
7.	Original Set Sensor	16.	Inverter Roller
8.	Upper Cover Sensor	17.	Platen Sheet
9.	Original Set Tray

SM

1-5

D127/D128

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Overview

1.3.2 ELECTRICAL COMPONENTS

Electrical Components 1

1.	LED Unit	10.	ID (Image Density) Sensor
2.	Scanner HP Sensor	11. Registration Sensor
3.	Platen Cover Sensor	12.	Paper End Sensor
4.	Scanner Motor	13.	Toner Density Sensor
5.	High-Voltage Power Supply Board	14.	Bypass Paper End Sensor
6.	Operation Panel Board	15.	Right Door Safety Switch
7.	Polygon Mirror Motor	16.	Front Door Safety Switch
8.	LD Unit	17.	Quenching Lamp
9.	Exit Sensor

D127/D128

1-6

SM

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Overview

Electrical Components 2

Information

Product

1.	Duplex Motor	7.	Paper Feed Clutch
2.	Exhaust Fan	8.	Toner Supply Motor
3.	PSU	9.	Bypass Feed Clutch
4.	Controller Board	10. Registration Clutch
5.	BICU	11. Fusing Solenoid
6.	Main Motor

SM

1-7

D127/D128

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Overview

ARDF

1.	Registration Sensor	5.	Upper Cover Sensor
2. ARDF Drive Motor		6.	Junction Gate Solenoid
3.	Pick-up Solenoid	7. ARDF Relay Board
4.	Original Set Sensor

D127/D128

1-8

SM

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Overview

1.3.3 PAPER PATH

Information

Product

1.Original Registration Sensor (Document Feeder)

2.Original Set Sensor (Document Feeder)

3.Upper Cover Sensor (Document Feeder)

4.Exit Sensor

5.Paper Path Sensor

6.Registration Sensor

7.By-pass Paper End Sensor

8.Paper Feed Sensor (Optional Tray)

9.Paper End Sensor (Optional Tray)

10.Paper End Sensor

SM

1-9

D127/D128

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Overview

1.3.4 DRIVE LAYOUT

Mainframe

1.	Scanner Motor	7.	Bypass Feed Clutch
2.	Duplex motor	8.	Registration Clutch
3.	Exit Roller	9.	Developer Driver Gear
4.	Toner Supply Motor	10. Drum Drive Gear
5.	Main Motor	11. Oneway Gear (Duplex Unit)
6.	Paper Feed Clutch	12. Fusing Drive Gear

D127/D128

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SM

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Overview

ARDF

Information

Product

1.	DF Feed Clutch	5.	DF Feed Motor
2.	Feed Roller	6.	Registration Roller
3.	Pick-up Roller	7.	Pull-out Roller
4.	Inverter Roller	8.	Exit Roller

DF Feed Motor [5]: Drives the feed, pull-out, pick-up, and registration and inverter rollers.

SM

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D127/D128

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Guidance for Those Who are Familiar with Predecessor Products

1.4 GUIDANCE FOR THOSE WHO ARE FAMILIAR WITH

PREDECESSOR PRODUCTS

The D127/D128 range of machines is the successor model to the D115/D116 range of machines. If you have experience with the predecessor line, the following information may be of help when you read this manual.

Differences from Predecessor Products

		D127/D128	D115/D116
Security Card (HDD
Encryption and Data		Standard	Standard only for D115
Overwrite Security Unit)
Copying Speed		30cpm: Memory copy	20cpm: Memory copy
		30cpm: ADF 1 to 1	16cpm: ADF 1 to 1

The following parts are unique for D127/D128. When replacing the following parts, use

the parts specified for each modelDO. NOT mix up the following parts for D115/D116 and D127/D128. Otherwise, both of the machine operation and output quality are not guaranteed.

1.LED Scanning Unit (Scanner Unit)

2.Laser Unit (Writing Unit)

3.ARDF

4.Pressing Roller (Fusing Unit)

5.Toner Bottle (Toner Supply Unit)

6.Operation Panel

7.Bank Unit Motor (Optional Bank Unit)

8.One Chip Microcomputer (Engine Control)

D127/D128

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SM

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