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Precautions

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1. Precautions
The cautions in the below are items needed to keep in mind when maintaining and servicing. Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent that the machine gets damage.

1.1 Warning for safety.
(1) Request the service by qualified service person. The service for this machine must be performed by a service person who took the additional education of this field. It is dangerous if unqualified service person or user tries to fix the machine. (2) Do not rebuild it discretionary. Do not attach or change parts discretionary. Do not disassemble, fix, and rebuilt it. If you do, the printer will not work and electric shock or a fire can occur. (3) 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 825. 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 LASERS TEILYLLE L KATSO S TEESEEN.

Service Manual WorkCentre PE16 June 2003

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Precautions

1.2 Caution for safety
1.2.1 Precaution related noxious material
It is possible to get harmed from noxious material if you ignore the below information. (1) Do not touch the damaged LCD. This PRINTER has LCD in control panel. Noxious liquid to human body exists in the LCD. If it is got into mouth, immediately see a doctor. If it is got into eyes or on skin, immediately wash off over 15 minutes with flowing water and see a doctor. (2) The toner in a printer cartridge contains a chemical material, which might harm human body if it is swallowed. Please keep children out of the toner cartridge.

1.2.2 Precaution related electric shock or fire
It is possible to get electric shock or burn by fire if you don't follow the instructions of the manual. (1) Use exact voltage. Please do use an exact voltage and wall socket. If not, a fire or an electric leakage can be caused. (2) Use authorized power code. Do use the power code supplied with PRINTER. A fire can be occurred when over current flows in the power code. (3) Do not insert many cords into a outlet. If do, a fire can occur due to a over flow of current in an outlet. (4) Do not put water or extraneous matter in the PRINTER. Please do not put water, other liquid, pin, clip, etc. It can cause a fire, electric shock, or malfunction. If it happens, turn off the power and remove the power plug from outlet immediately. (5) Do not touch the power plug with a wet hand. When servicing, remove the power plug from the outlet and do not insert or remove it with a wet hand. Electric shock can occur. (6) Use caution when inserting or taking off the power plug. The power plug has to be inserted completely. If not, a fire will be caused due to poor contact. When taking off the power plug, grip the plug and remove it. (7) Management of power cord. Do not bend, twist, bind or place other materials on it. Do not use stales around printer. If the power code gets damage, a fire or electric shock can occur. A damaged power code must be replaced immediately. Do not repair the damaged part or reuse it. Repairing cord with plastic tape can cause a fire or electric shock. Do not spread chemicals on the power code. Do not spread insecticide on the power code. A fire or electric shock can occurred due to a thin(weak) cover on the power code. (8) Check whether the power outlet and the power plug are damaged, pressed or chopped. When such inferiorities are found, repair it immediately. Do not press or chop the cord when moving the machine. (9) Use caution during thunder or lightning storms. It may cause fire or electric shock. Take the power plug off under these conditions. Do not touch cable and device during tender or lightening storms. (10) Avoid damp or dusty areas. Do not install the printer in dusty areas or around humidifier. A fire can occurs. Clean plug well with dried fabric to remove dust. Fire can occur if water is dropped into the unit or if covered with dust. (11) Avoid direct sunlight. Do not install the printer near to a window where it directly contacts to the sunlight. If the machine contacts sunlight for a long time, the machine will not work properly, because the inner temperature of machine will get higher. A fire can be occur. (12) Turn off the power and take off the plug when smoke, a strange smell, or sound from the machine is detected. A fire can occur if unit is used under these conditions. (13) Do not insert steel or metal pieces inside/outside of the machine. Do not put steel or metal piece into the ventila-tor. An electric shock can occur.

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Service Manual June 2003 WorkCentre PE16

Precautions

1.2.3 Precaution related to handling the machine.
If you ignore this information, you could get harm and machine could be damaged. (1) Do not install unit on uneven surfaces or slanted floors. Please confirm unit is correctly balanced after installation. Machine may fall over when not balanced correctly. (2) Be careful not to insert a finger or catch your hair in the rotating unit. Be careful not to insert a finger or hair in the rotating unit (motor, fan, paper feeding part, etc) while the machine is operation. (3) Do not place any containers of water or chemical or small metals near the machine. If these objects get into the inner side a fire or electric shock can be occurred. (4) Do not install machine in areas where moisture or dust exists. For example, do not install machine near open windows, damage may be caused by these conditions. (5) Do not place candles, burning cigarettes, etc. on the machine. Do not install it near to a heater. A fire may occur.

1.2.4 Precautions for when assembly/disassembly
Replace parts very carefully. Do remember the location of each cable before replacing parts, in order to reconnect it afterwards. Please perform the below steps before replacing or disassembling any parts. (1) Check the contents stored in the memory. All the information will be erased after the main board is replaced. Write down and needed information. (2) Disconnect power before servicing or replacing electrical parts. (3) Remove printer cables and power cord. (4) Do use formal parts and same standardized goods when replacing parts. Must check the product name, part code, rated voltage, rated current, operating temperature, etc. (5) Do not use excessive force when loosening or tightening of plastic parts. (6) Be careful not to drop small parts or objects in the machine.

Service Manual WorkCentre PE16 June 2003

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Precautions

1.3 ESD Precautions
Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called "Electrostatically Sensitive (ES) Devices", or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor "chip" components. The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.

Caution >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially available wrist strap device, which should be removed for your personal safety reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface, such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the assembly. 3. Use only a grounded tip soldering iron to solder or desolder ESDs. 4. Use only an "anti-static" solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ESDs. 5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESDs. 6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a comparable conductive material. 7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed. 8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until completely plugged or soldered into the circuit. 9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one's foot from a carpeted floor, can generate static electricity sufficient to damage an ESD.

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Service Manual June 2003 WorkCentre PE16