Xerox WorkCentre PE16 Service Manual

WorkCentre PE16

SERVICE Manual

WorkCentre PE16	CONTENTS
1.	Precautions
2.	Reference Information
3.	Specifications
4.	Summary of product
5.	Disassembly and Reassembly
6.	Alignment and Adjustments
7.	Troubleshooting
8.	Exploded Views and Parts List
9.	Block Diagram
10.	Connection Diagram

XXX-XXXX-XX

1	Precautions

1. Precautions

Product Terms

Caution: A personal injury hazard exists that may not be apparent. For example, a panel may cover the hazardous area.

Danger: A personal injury hazard exists in the area where you see the sign.

Symbols Marked on the Product

Hot surface on or in the printer. Use caution to avoid personal injury.

Use caution (or draws attention to a particular component).

Refer to the manual(s) for information.

	Service Manual
WorkCentre PE16	July 2003

Precautions

Laser Safety Statement

The Printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1 Subchapter J for Class 1(1) laser products, and elsewhere, it is certified as a Class I laser product conforming to the requirements of IEC 60825. Class I laser products are not considered to be hazardous. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition.

Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. The reflected beam, although invisible, can damage your eyes. When using this product, these basic safety precautions should always be followed to reduce risk of fire, electric shock, and injury to persons.

CAUTION - INVISIBLE LASER RADIATION

WHEN THIS COVER OPEN.

DO NOT OPEN THIS COVER.

VORSICHT - UNSICHTBARE LASERSTRAHLUNG,

WENN ABDECKUNG GE FFNET.

NICHT DEM STRAHL AUSSETZEN.

ATTENTION - RAYONNEMENT LASER INVISIBLE EN CAS

D OUVERTURE. EXPOSITION DANGEREUSE

AU FAISCEAU.

ATTENZIONE - RADIAZIONE LASER INVISIBILE IN CASO DI

APERTURA. EVITARE L ESPOSIZIONE AL

FASCIO.

PRECAUCION - RADIACION LASER IVISIBLE CUANDO SE ABRE.

EVITAR EXPONERSE AL RAYO.

ADVARSEL. - USYNLIG LASERSTR LNING VED BNING, N R

SIKKERHEDSBRYDERE ER UDE AF FUNKTION.

UNDG UDSAETTELSE FOR STR LNING.

ADVARSEL. - USYNLIG LASERSTR LNING N R DEKSEL

PNES. STIRR IKKE INN I STR LEN.

UNNG EKSPONERING FOR STR LEN.

VARNING - OSYNLIG LASERSTR LNING N R DENNA DEL

R PPNAD OCH SP RREN R URKOPPLAD.

BETRAKTA EJ STR LEN. STR LEN R FARLIG.

VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA

OLET ALTTIINA N KYM TT M LLE LASER-

S TEILYLLE L KATSO S TEESEEN.

Service Manual

July 2003 WorkCentre PE16

Precautions

Power Safety Precautions

Power Source

For 110 VAC units, do not apply more than 140 volts RMS between the supply conductors or between either supply conductor and ground. Use only the specified power cord and connector. For 220 VAC units, do not apply more than 264 volts RMS between the supply conductors or between either supply conductor and ground.

Use only the specified power cord. This manual assumes that the reader is a qualified service technician.

Plug the three-wire power cord (with grounding prong) into a grounded AC outlet only. If necessary, contact a licensed electrician to install a properly grounded outlet. If the product loses its ground connection, contact with conductive parts may cause an electrical shock.

Disconnecting Power

Turning the power off using the On/Off switch does not completely de-engergize the equipment. You must also disconnect the unit power cord from the AC outlet. Position the power cord so that it is easily accessible during servicing

so that you may power down the unit during an emergency.

Disconnect the power plug by pulling the plug, not the cord.

Disconnect the power cord in the following cases:

■if the power cord or plug is frayed or otherwise damaged,

■if any liquid or foreign material is spilled into the case,

■if the equipment is exposed to any excess moisture,

■if the equipment is dropped or damaged,

■if you suspect that the product needs servicing or repair,

■whenever you clean the product.

	Service Manual
WorkCentre PE16	July 2003

Precautions

Electrostatic Discharge (ESD) Precautions

Some semiconductor components, and the respective sub-assemblies that contain them, are vulnerable to damage by Electrostatic discharge (ESD). These components include Integrated Circuits (ICs), Large-Scale Integrated circuits (LSIs), field-effect transistors and other semiconductor chip components. The following techniques will reduce the occurrence of component damage caused by static electricity.

Be sure the power to the chassis or circuit board is off, and observe all other safety precautions.

■Before handling any semiconductor components assemblies, drain the electrostatic charge from your body. This can be accomplished by touching an earth ground source or by wearing a wrist strap device connected to an earth ground source. Wearing a wrist strap will also prevent accumulation of additional bodily static charges. Be sure to remove the wrist strap before applying power to the unit to avoid potential shock.

■After removing a static sensitive assembly from its anti-static bag, place it on a grounded conductive surface. If the anti-static bag is conductive, you may ground the bag and use it as a conductive surface.

■Do not use freon-propelled chemicals, as they can generate electrical charges that may damage some devices.

■Do not remove a static sensitive replacement component or electrical subassembly from its protective package until you are ready to install it.

■Before removing the protective material from the leads of a replacement device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

■Minimize body motions when handling unpackaged replacement devices. Simple motions such as your clothes brushing together or lifting a foot from a carpeted floor can generate enough static electricity to damage a static sensitive device

■Handle IC’s and EPROM’s carefully to avoid bending pins.

■Pay attention to the direction of parts when mounting or inserting them on Printed Circuit Boards (PCB’s).

Service Manual

July 2003 WorkCentre PE16

Precautions

Service Safety Summary

General Guidelines

Note

The material presented here is intended as a safety reminder for qualified service personnel. Refer also to the preceding Power Safety Precautions.

Avoid servicing alone: Do not perform internal service or adjustment of this product unless another person capable of rendering first aid or resuscitation is present.

Use care when servicing with power: Dangerous voltages may exist at several points in this product. To avoid personal injury, do not touch exposed connections and components while power is on. Disconnect power before removing the power supply shield or replacing components.

Do not wear jewelry: Remove jewelry prior to servicing. Rings, necklaces and other metallic objects could come into contact with dangerous voltages and currents.

Power source: This product is intended to operate from a power source that will not apply more then 264 volts rms for a 220 volt AC outlet or 140 volts rms for a 110 volt AC outlet between the supply conductors or between either supply conductor and ground. A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation.

Warning Labels

Read and obey all posted warning labels. Warning labels are displayed on potentially dangerous printer components. As you service the printer, check to make certain that all warning labels remain in place.

Safety Interlocks

Make sure all covers and the products’s front panel are in place and all interlock switches are functioning correctly after you have completed a unit service call. If you bypass an interlock switch during a service call, use extreme caution when working on or around the product.

	Service Manual
WorkCentre PE16	July 2003

Precautions

Servicing Electrical Components

Before starting any service procedure, switch off the product power and unplug the power cord from the wall outlet. If you must service the unit with power applied, be aware of the potential for electrical shock.

Warning

Turning the power off by using the On/Off switch does not completely de-energize the unit. You must also disconnect the unit's power cord from the AC outlet. Position the power cord so that it is easily accessible during servicing.

Warning

Do not touch any electrical component unless you are instructed to do so by a service procedure.

S7300-02

Servicing Mechanical Components

When servicing mechanical components within the unit, manually rotate drive assemblies, rollers, and gears.

Warning

Do not try to manually rotate or manually stop the drive assemblies while any unit drive motor is running.

S7300-03

Servicing Fuser Components

Warning

This product uses heat to fuse the toner image to media. The Fuser Assembly is VERY HOT. Turn the unit power off and wait at least 5 minutes for the Fuser

to cool before you attempt to service the Fuser Assembly or adjacent components.

Service Manual

July 2003 WorkCentre PE16

Reference Information

22. Reference Information

This chapter provides reference information for this service manual consisting of the tool list, a list of acronyms and abbreviations, and examples of test patterns.

2.1 Tool for Troubleshooting

The following tools are recommended for perfomance of the troubleshooting functions described in this service manual.

1	DVM(Digital Volt Meter)	4	Cotton Swab
	Standard: Indicates more than 3 digits.		Standard : For general home use, for

medical service.

5	Cleaning Equipment IPA
	(Isopropyl Alcohol) dry cloth or a

liquid neutral detergent.

2 Tweezers

Standard: For general home use, small type.

6	Software(Driver) installation CD
	ROM

3 Driver

Standard : "-" type, "+" type (M3 long, M3 short, M2 long, M2 short).

	Service Manual
WorkCentre PE16	July 2003

Reference Information

2.2 Acronyms and Abbreviations

The table below explains the acronyms and abbreviations used in this service manual. These are used throughout the text of this service manual. Please refer to the table.

AC	Alternating Current
ADF	Automatic Document Feeder
ASIC	Application Specific Integrated Circuit
ASSY	assembly
BIOS	Basic Input Output System
CCD	Charge Coupled Device
CMOS	Complementary Metal Oxide Semiconductor
CN	connector
CON	connector
CPU	Central Processing Unit
dB	decibel
dbA	decibelampere
dBM	decibel milliwatt
DC	direct current
DCU	Diagnostic Control Unit
DPI	Dot Per Inch
DRAM	Dynamic Random Access Memory
DVM	Digital Voltmeter
ECP	Enhanced Capability Port
EEPROM	Electronically Erasable Programmable Read
	Only Memory
EMI	Electro Magnetic Interference
EP	electrophotographic
EPP	Enhanced Parallel Port
F/W	firmware
GDI	graphics device interface
GND	ground
HBP	Host Based Printing
HDD	Hard Disk Drive
HV	high voltage
HVPS	High Voltage Power Supply
I/F	interface
I/O	Input and Output
IC	integrated circuit

IDE	Intelligent Drive electronics or Imbedded
	Drive Electronics
IEEE	Institute of Electrical and Electronics
	Engineers. Inc
IPA	Isopropy Alcohol
IPM	Images Per Minute
Kg	Kilogram
LAN	local area network
lb	pound(s)
LBP	Laser Beam Printer
LCD	Liquid Crystal Display
LED	Light Emitting Diode
LSU	Laser Scanning Unit
MB	Megabyte
MHz	Megahertz
NVRAM	Nonvolatile random access memory
OPC	Organic Photo Conductor
PBA	Printed Board Assembly
PCL	Printer Command Language , Printer Control
	Language
PDL	Page Discription Language
PPM	Page Per Minute
PTL	Pre-Transfer Lamp
Q’ty	Quantity
RAM	Random Access Memory
ROM	Read Only Memory
SCF	Second Cassette Feeder
SMPS	Switching Mode Power Supply
SPGP	Samsung Printer Graphic Processor
SPL	Samsung Printer Language
Spool	Simultaneous Peripheral Operation Online
SW	Switch
Sync	Synchronous or synchronization
USB	Universal Serial Bus

Service Manual

July 2003 WorkCentre PE16

Reference Information

2.3 The Sample Test Patterns

The following test patterns are the standard patterns used to test the product in the factory. Cartridge life span and printing speed are measured with the patterns shown below.

(The picture in the manual is 70% size of the actual A4 size.)

2.3.1 A4 5% Pattern

	Service Manual
WorkCentre PE16	July 2003

Reference Information

2.3.2 A4 2% Pattern

Service Manual

July 2003 WorkCentre PE16

Reference Information

2.3.3 A4 IDC 5% Pattern

	Service Manual
WorkCentre PE16	July 2003

Reference Information

Service Manual

July 2003 WorkCentre PE16

Specifications

33. Specifications

Specifications are correct at the time of printing. Product specifications are subject to change without notice. See below for product specifications.

3.1 General Specifications

Items				Descriptions	Remarks
Major Features				Copier, Print, Scan, Fax	With ADF
Size (W*D*H)				474 X 436 X 417 mm	w/o Hand Set
Weight				13 Kg (28.8 lbs)	With Toner Cartridge
LCD				16*2 Char
I/O Interface				USB1.1 & IEEE1284
Power Consumption			Printing	350W
			Sleep Mode	20W
Power Switch				Yes
Noise			Operating	55 dBA
			Standby	35 dBA
Warm Up				Less than 42 seconds
Approval				Class B
Device Memory				16 MB (Printer : 8M, Fax : 4M,
				Scan : 2M, System : 2M)
Internal N/W Connectivity				N/A

3.2 Print Specification

	Items		Descriptions	Remarks
Print Speed			17ppm(Letter)	5% Character
			16pp,(A4)	Pattern
Print Method			Laser Scanning Unit + Electro Photography
Print Language			SPL
Power Save			Yes(5/10/15/30/45min.)
Resolution		Normal	600 *600dpi
		RET	No
Toner Save			Yes
Memory			8 MB
FPOT		Stand by	Approx. 12 seconds
		Power Save	Less than 54 seconds
Printable Area			208 X 271 mm (Letter)
			202 X 289 mm (A4)
Toner Save			Yes

Service Manual

WorkCentre PE16

June 2003

Specifications

3.3 Scan Specification

Items			Descriptions			Remarks
Halftone(Gray Scale)			256 level
Scan Method			Color CCD			ITU-T #1 Chart
Scan Speed		ADF	Letter : 25 sec,	A4 :	28 sec	Text/Mixed Mode :
(seconds/scan)		Platen	Letter : 25 sec,	A4 :	28 sec	B/W & 300dpi. (USB)
		ADF	Letter : 55 sec,	A4 :	60 sec	Photo Mode : Gray
		Platen	Letter : 55 sec,	A4 :	60 sec	& 300dpi. (USB)
		ADF	Letter : 125 sec,	A4	: 130 sec	Photo Mode : Color
		Platen	Letter : 125 sec,	A4	: 130 sec	& 300dpi.(USB)
Resolution		Optical	600 dpi
		Enhanced	4800 dpi
Halftone			256 level
Scan Width		Width	Max.216mm (8.5")
		Length(Adf)	Max. 356mm (14.0")
		Length(Platen)	Max. 297mm (11.7")
Scan-to			E-mail, Image, OCR, FAX, WEB			From SmarThru3

Service Manual

June 2003

WorkCentre PE16

Specifications

3.4 Copy Specification

Items			Descriptions		Remarks
Copy Quality Selection	Text	600x300dpi
or Original Image type	Auto	600x300dpi
selection Mode	Photo	600x600dpi	for Platen / 600x300dpi for ADF
	Other	-
FCOT	Platen	Power Save		Approx. 54 seconds
		Stand by		Approx. 12 seconds
	ADF	Power Save		Approx. 54 seconds
		Stand by		Approx. 17 seconds
Copy Speed	Text Mixed	SDMC		16 cpm/A4, 17 cpm/LTR
		MDMC		7 cpm/A4, 7 cpm/LTR
	Photo	SDMC		16 cpm/A4, 17 cpm/LTR
		MDMC		7 cpm/A4, 7 cpm/LTR
Resolution	Scan	600*600dpi
	Print	600*600dpi
Zoom Range		25% to 400 % for platen, 25% to 100% for ADF
Multi Copy		1~99
Preset		Yes
Contrast Control		3 level(by LED)
Copy Mode		TEXT/MIXED/PHOTO
Collation Copy		Yes(300dpi only)
Auto return to default mode		Yes(after 1 minute)
N-up copy		2-up, 4-up			ADF Only
AutoFit Copy		Yes			Platen Only
Clone		Yes			Platen Only
Poster		Yes			Platen Only

Service Manual

WorkCentre PE16

June 2003

Specifications

3.5 Telephone Specification

Items			Descriptions	Remarks
Handset			No
On hook Dial			Yes
Search			Yes (Phone Book)	by using Phone Book Button
1-Touch Dial			10EA (3*4 Numeric Key)
Auto dial			100 locations (Using 3*4 buttons)
TAD I/F			No
Tone/Pulse			Selectable in Tech Mode
Pause			Yes
Auto Redial			Yes
Last Number Redial			Yes
Distinctive Ring			No
Caller ID			No
External Phone Interface			No
Report & List Print out		Tx/Rx Journal	Yes
		Confirmation	2 types available
			(with Image TCR, w/o image TCR)
		Help List	No
		Auto Dial List	Yes
		System Data List	List all user setting
Sound Control		Ring Volume	Yes(Off,Low,MED,HIGH)
		Key Volume	Yes(On,Off)
		Speaker	Yes(On,Off)

Service Manual

June 2003

WorkCentre PE16

Specifications

3.6 Fax Specification

Items				Descriptions	Remarks
Compatibility				ITU-T G3
Communication System				PSTN/PABX
Modem Speed				33.6 Kbps
TX Speed				Approx. 3 sec
Compression				MH/MR/MMR/JPEG
ECM				Yes
Resolution			Std	203 x 98 dpi
			Fine	203 x 196 dpi
			S.Fine	300 x 300 dpi
Scan Speed(ADF)			Std	Approx. 5sec/LTR (6 sec/A4)
			Fine	Approx.7.5sec/LTR (8 sec/A4)
			S.Fine	Approx.7.5sec/LTR (8 sec/A4)
Rx fax duplex print out				No
Multiple page scan speed				Approx. 7 ppm/LTR (7.5 ppm/A4)
Receive Mode				Fax, TEL
Memory			Capacity	4 MB (320 pages)
			Optional Memory	No
			Max locations to	99 locations
			store to 1 Group Dial
			Fax Forward	Yes (On/Off)
			Broadcasting	Up to 99 locations
			Forced Memory TX	No
			Cover page	No
			Delayed fax	Yes
			Memory RX	Yes
Functions			Voice Request	No
			TTI	Yes
			RTI	Yes
			Polling	No
			Earth/Recall	No
			Auto Reduction	Yes
			RDC	No
			Junk Fax barrier	Yes
			Security Mode	Yes
			Battery Backup	Yes (Min. 15 minutes)	Not Battery
					(Using Super Cap.)

Service Manual

WorkCentre PE16

June 2003

Specifications

3.7 Paper Handling

	Items		Descriptions	Remarks
Capacity		Main Tray	250sheets
(20lbs)		Bypass	Single Sheet
Optional Cassette			No
Output Capacity			150Sheets/20lb, 1Sheet/Face up
Output Control			Face down/Face up
Paper Size		Main Tray	CST : A4,Letter,Legal, Folio,Executive,B5
		Bypass	Bypass : Envelope6 3/4,7 3/4, #9, #10,
			DL,C5,B5
Paper Weight		Main Tray	60 ~ 90 GSM / 16 ~ 24 lb.
		Bypass	60 ~ 150 GSM / 16 ~ 40 lb.
Paper Path		Standard output	Bottom to Middle Front (FIFO)
		Straight Through	Face up, Single Sheet
Paper Size		Max	216 x 356mm(8.5"x14")
		Min	76 x 127mm(3"x5")
Output Stacker		Paper	Extension
		Document	Fixed
Input Guide		Bypass Tray	Adjustable
		Main Tray	Universal
		Document	Adjustable
ADF		Paper Weight	60 ~ 105 GSM / 12.5~28lb
		Capacity	30 sheets(80 GSM / 20lb)
		Document Size Width	148mm - 216mm(5.8" - 8.5")
		Document Size Length	127 mm - 356mm(5" - 14.0")

3.8 Software

		Items			Descriptions	Remarks
Compatibility				DOS	No
				Win 3.x	No
				Win 95	Yes
				Win 98&WinME	Yes
				Win NT 4.0	Yes
				Win 2000	Yes
				Win XP	Yes	WHQL for Printer Only
				Mac	Yes	Mac Printer Only
				Linux	No
Driver				Printer	SPL(GDI)
				TWAIN	Yes
				PC-FAX	No	PC Fax is only avail-
						able through PC
						Modem
	Service Manual
	June 2003					WorkCentre PE16

Specifications

3.9 Consumables

	Items		Descriptions	Remarks
Type			Single Cartridge
How to install			Front door open and front loading
Toner		Life	Initial 2,000 sheets	IDC 5%
			running 3,500 sheets	character printing
Level Sensor			No
Toner Count			Yes

Service Manual

WorkCentre PE16

June 2003

Specifications

Service Manual

June 2003

WorkCentre PE16

4 Summary of product

4. Summary of Product

This chapter describes the functions and operating principals of the main components.

4.1 Printer Components

4.1.1 Front View

	Document	Document
		Cover
	Guides
Automatic	Document
	Input Tray
Document Feeder

Document Glass

Document

Output Tray

Control Panel

Front Cover

Paper Output
Extension
Paper Tray	Paper Level
	Indicator
Bypass Tray

	Service Manual
WorkCentre PE16	July 2003

Summary of Product

4.1.2 Rear View

Rear Cover

Rear Output Slot

(Face up)

	Power Switch	Parallel
					Telephone Line
		Connector
					Connector
	AC Power Cord
			USB
	Connector
			Connector

Service Manual

July 2003

WorkCentre PE16

Summary of product

4.1.3 Control Panel

1

2

3

4

5

6

1

C O P Y

2

3

Adjusts the brightness of the documents for the current copy job.

Selects the document type for the current copy job.

Allows you to use special copy features, such as Clone, Collation, Auto fit, 2-side, N-up (multiple pages on a sheet) and Poster copying.

Makes a copy smaller or larger than the original.

Selects the number of copies.

Displays the current status and prompts during an operation.

Turns on when the toner cartridge is empty.

Scrolls through the options available for the selected menu item.

Confirms the selection on the display.

Enters Menu Mode and scrolls through the menus available.

Sends you back to the upper menu level.

Stops an operation at any time.

In Standby Mode, clears/cancels the copy options, such as the contrast, the image setting, the copy size and the number of copies.

Starts a job.

	Service Manual
WorkCentre PE16	July 2003

Summary of Product

4

5

F A X

6

S A V E

Dials a number or enters alphanumeric characters.

Adjusts the resolution of the documents for the current fax job.

Allows you to send a fax to multiple destinations.

Allows you to store frequently-dialed fax numbers using a one or two-digit speed dial or group number for automatic dialing and edits the stored numbers.

Allows you to print a Phonebook list. Redials the last number in Standby Mode or inserts a pause into a fax number in edit mode.

Engages the telephone line.

Allows you to save on toner by using less toner to print a document.

Allows you to save on call costs by sending a fax at a preset toll-saving time. Using this feature, you can take advantage of lower long distance rates at night, for example.

Service Manual

July 2003 WorkCentre PE16

Summary of product

4.2 System Layout

4.2.1 Feeding section

Paper for the machine is supplied from a universal cassette or from the manual feeder, for single sheet feeding. The cassette contains a friction pad, to separate the paper and prevent multi-sheet feeding. There is a sensor to detect the presence of paper in the cassette.

-Feeding Method: Universal Cassette Type

-Feeding Standard: Center Loading

-Feeding Capacity: Cassette-250 sheets (80g/m2, 20lb paper standard)

Manual 1 sheet (Paper, OHP, Envelope, etc.)

-Paper detecting sensor: Photo sensor

-Paper size sensor: None

4.2.2Transfer Ass’y

The Transfer Ass'y consists of the PTL(pre-transfer lamp), OPC Drum, and the Transfer Roller. The PTL lights the surface of the OPC Drum, reducing the charge on the drum surface to improve transfer efficiency. The Transfer Roller transfers toner from the OPC Drum surface to the paper.

-Life span: 60,000 sheets (in 15~30°C)

4.2.3Drive Ass’y

The Drive Ass'y is a motor driven gear unit, that drives the paper feed, the Fuser, and the distributing unit.

4.2.4 Fuser

The Fuser consists of the Heat Lamp, Heat Roller, Pressure Roller, Thermistor, and Thermostat. It melts the toner to the paper using pressure and heat to complete the printing job.

4.2.4.1 Thermostat

The thermostat is a temperature-sensing device, that cuts off the power to prevent overheating or a fire when the heat lamp or the heat coil of the heat roller becomes too hot.

4.2.4.2 Thermistor

The Thermistor detects the surface temperature of the heat roller. The information from the Thermistor provides the on/off control that maintains the selected temperature of the heat roller.

4.2.4.3 Heat Roller

The heat roller transfers the heat from the heat lamp coil to the surface of the paper. The melted toner cannot stick to the Teflon coated heat roller.

4.2.4.4 Pressure roller

The pressure roller mounted right under the heat roller is made of the silicon resin. The toner fuses onto the paper when it passes between the heat roller and the pressure roller.

	Service Manual
WorkCentre PE16	July 2003

Summary of Product

4.2.4.5 Safety Relevant Facts

•Protecting device when overheating

-1st protecting device: H/W cuts off when an overheat condition is detected.

-2nd protecting device: S/W cuts off when an overheat condition is detected.

-3rd protecting device: Thermostat cuts off the power.

•Safety device

-The power to the fuser is cut off when the front cover is open.

-The overheating safety device for customer safety.

-Maintains the surface temperature of the Fuser Cover below 80°C. A customer caution label is attached on the inside of the rear cover.

4.2.5 Scanner

Uses a photosensitive device to read an image. The Scanner consists of a CCD module, Connection board, ADF board, AFE (Analog Front End), Image Processor (located in the CPU), platen glass, and ADF.

•CCD Module Specification

1.Resolution: 600dpi/A4 2.Maximum scan wide: 8.5” 3.Color filter: Red, Green, Blue

4.Output channel: 3 channels (R, G, B) 5.Effective pixel: 5,400 pixel *3 6.Voltage: 24V & 5V

7.Pre-heating time: Maximum 30 seconds (70% of light reach to it) 8.The life span of a lamp: 30,000 hours (25oC)

•Image Processor Specification

1.Operating frequency: 66 MHz

2.Image sensor interface: 200/300/600 dpi CIS or CCD

3.Line time: Copy, FAX, Binary (Lineart, Halftone) PC Scan: 1.5ms/Line Color PC Scan (Grey, 256 Color, True Color): 4.5ms/Line

4.A/D conversion: 10bit conversion

Service Manual

July 2003 WorkCentre PE16

Summary of product

4.2.6 LSU (Laser Scanner Unit)

The LSU is controlled by the video controller. It converts the received video data to pulsed laser light that is scanned onto the surface the OPC drum using a rotating polygon mirror. This creates the latent image on

the drum surface. The OPC drum rotates at the same speed as the paper is fed. When the edge of the polygon mirror is detected, the LSU generates the /HSYNC signal. The CPU syncs the left margin of the image to this signal. After detecting the /HSYNC signal, the image data is sent to the LSU to begin transfer of the image left margin to the paper.

Each surface of the polygon mirror provides one line for scanning.

	Service Manual
WorkCentre PE16	July 2003

Summary of Product

4.2.7 Toner Cartridge

The xerographic process creates a visual image from the latent image. The Toner Cartridge contains the OPC Drum, developer, and toner components in one unit. The OPC unit contains the OPC drum and charging roller. The developer unit contains toner, toner cartridge, supply roller, developing roller, and blade (Doctor blade).

-Developing Method: Non magnetic 1 element contacting method

-Toner: Non magnetic 1 element shatter type toner

-The life span of toner: 3,000 sheets (IDC Pattern/A4 standard)

-Toner remaining amount detecting sensor: None

-OPC Cleaning: Collect the toner by using electric charge + FILM OPC

-Management of excess toner: Collect the toner by using electric charge (Cleanerless TypeNo excess toner)

-OPC Drum protecting Shutter: None

-Classifying device for toner cartridge: ID is classified by interruption of the frame channel.

Service Manual

July 2003 WorkCentre PE16