Xerox Phaser 3125 Service Manual

Introduction Xerox Phaser 3125 Service Manual

Precautions Xerox Phaser 3125 Service Manual

In order to prevent accidents and to prevent damage to the equipment, please read the precautions listed below carefully and follow them closely before servicing the machine.

Warnings, Cautions and Notes

WARNING
A warning is used whenever an operating or maintenance procedure, practice, condition or statement, if not strictly observed, could result in personal injury.
CAUTION
A caution is used whenever an operation or maintenance procedure, practice, condition or statement, if not strictly observed, could result in damage to the equipment.
Note: A note is used where it is essential to highlight a procedure, practice, condition or statement.

Safety Warning

1. Only to be serviced by appropriately qualified service engineers.

High voltages and lasers inside this product are dangerous. This machine should only be serviced by a suitably trained and qualified service engineer.

2. Use only Xerox replacement parts

There are no user serviceable parts inside the machine. Do not make any unauthorized changes or additions to the machine, these could cause the machine to malfunction and create electric shock or fire hazards.

3. Laser Safety Statement

The machine 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 machine 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
Avoid exposure to laser beam. Invisible laser radiation.

Caution for safety

Toxic material

This product contains toxic materials that could cause illness if ingested.

  1. Please keep toner cartridges away from children. Toner contained in the print cartridge may be harmful. If swallowed, contact a doctor immediately.

Electric Shock and Fire Safety Precautions

Failure to follow the following instructions could cause electric shock or potentially cause a fire.

  1. Use only the correct voltage, failure to do so could damage the machine and potentially cause a fire or electric shock.
  2. Use only the power cable supplied with the machine. Use of an incorrectly specified cable could cause the cable to overheat and potentially cause a fire.
  3. Do not overload the power socket, this could lead to overheating of the cables inside the wall and could lead to a fire.
  4. Do not allow water or other liquids to spill into the machine, this can cause electric shock. Do not allow paper clips, pins or other foreign objects to fall into the machine these, could cause a short circuit leading to an electric shock or fire hazard
  5. Never touch the plugs on either end of the power cable with wet hands. This can cause an electric shock. When servicing the machine, remove the power plug from the wall socket.
  6. Use caution when inserting or removing the power connector. The power connector must be inserted completely otherwise a poor contact could cause overheating and possibly lead to a fire. When removing the power connector grip it firmly and pull.
  7. Take care of the power cable. Do not allow it to become twisted, bent sharply round corners or otherwise damaged. Do not place objects on top of the power cable. If the power cable is damaged, it could overheat and cause a fire or exposed cables could cause an electric shock. Replace a damaged power cable immediately, do not reuse or repair the damaged cable. Some chemicals can corrode the coating on the power cable, weaken the cover or exposing cables causing fire and shock risks.
  8. Ensure that the power sockets and plugs are not cracked or broken in any way. Any such defects should be repaired immediately. Take care not to cut or damage the power cable or plugs when moving the machine.
  9. Use caution during thunder or lightning storms. Xerox recommend that this machine be disconnected from the power source when such weather conditions are expected. Do not touch the machine or the power cord if it is still connected to the wall socket in these weather conditions.
  10. Avoid damp or dusty areas, install the machine in a clean well ventilated location. Do not position the machine near a humidifier. Damp and dust build up inside the machine can lead to overheating and cause a fire.
  11. Do not position the machine in direct sunlight. This will cause the temperature inside the machine to rise possibly leading to the machine failing to work properly and in extreme conditions could lead to a fire.
  12. Disconnect the machine from the power supply immediately if it emits any strange odour, smoke or strange noises. If this precaution is ignored, the machine could overheat and a fire may occur.
  13. Do not insert any metal objects into the machine through the ventilator fan or other part of the casing, it could make contact with a high voltage conductor inside the machine and cause an electric shock.

Handling Precautions

The following instructions are for your own personal safety, to avoid injury and so as not to damage the machine

  1. Ensure the machine is installed on a level surface, capable of supporting its weight. Failure to do so could cause the machine to tip or fall.
  2. The machine contains many rollers, gears and fans. Take great care to ensure that you do not catch your fingers, hair or clothing in any of these rotating devices.
  3. Do not place any small metal objects, containers of water, chemicals or other liquids close to the machine which if spilled could get into the machine and cause damage or a shock or fire hazard.
  4. Do not install the machine in areas with high dust or moisture levels, beside on open window or close to a humidifier or heater. Damage could be caused to the machine in such areas.
  5. Do not place candles, burning cigarettes, etc. on the machine, these could cause a fire.

Assembly / Disassembly Precautions

Replace parts carefully, always use Xerox parts. Take care to note the exact location of parts and also cable routing before dismantling any part of the machine. Ensure all parts and cables are replaced correctly.

Please carry out the following procedures before dismantling the machine or replacing any parts.

  1. Check the contents of the machine memory and make a note of any user settings. These will be erased if the mainboard is replaced.
  2. Ensure that power is disconnected before servicing or replacing any electrical parts.
  3. Disconnect printer interface cables and power cables.
  4. Be sure to remove the print cartridge before you disassemble any parts.
  5. Only use approved spare parts. Ensure that part number, product name, any voltage, current or temperature rating are correct.
  6. When removing or re-fitting any parts do not use excessive force, especially when fitting screws into plastic.
  7. Take care not to drop any small parts into the machine.
  8. Handling of the OPC Drum. The OPC Drum can be irreparably damaged if exposed to light.Take care not to expose the OPC Drum either to direct sunlight or to fluorescent or incandescent room lighting. Exposure for as little as 5 minutes can damage the surface’s photoconductive properties and will result in print quality degradation. Take extra care when servicing the machine. Remove the OPC Drum and store it in a black bag or a lightproof container. Take care when refitting covers as light is can be admitted through the OPC area and can damage the OPC Drum.Take care not to scratch the green surface of the OPC Drum Unit. If the green surface of the Drum Cartridge is scratched or touched, the print quality will be compromised.
  9. Remove dust and foreign matter.

Releasing Plastic Latches

Many of the parts are held in place with plastic latches. The latches break easily; release them carefully. To remove such parts, pull the hook of the latch away from the part to which it is latched.
Disregarding this warning may cause bodily injury

  1. The fuser unit works at a high temperature. Use caution when working on the machine. Wait for the fuser to cool down before disassembly.
  2. Do not put fingers or hair into the rotating parts (paper feeding entrance, motor, fan, etc.). Doing so may cause injury.
  3. When you move the machine. This machine weighs 8.7kg (19.2lbs). Use safe lifting and handling techniques. Back injury could be caused if you do not lift carefully.
  4. Ensure the machine is installed safely. The machine weighs 8.7kg (19.2lbs), ensure the machine is installed on a level surface, capable of supporting its weight. Failure to do so could cause the machine to tip or fall possibly causing personal injury or damaging the machine.
  5. Do not install the machine on a sloping or unstable surface. After installation, double check that the machine is stable.

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 aluminium 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, aluminium 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.

Toner Cartridge Service

Only toner cartridges supplied by Xerox should be used. Printing defects or set damage caused by the use of non-approved print cartridges or un-licensed toner refills are not covered by the guarantee.

Precautions on Safe-keeping of Toner Cartridge

Excessive exposure to direct light for more than a few minutes may cause damage to the cartridge.

Service Life of Toner Cartridge

If the printed image is light due to the toner supply becoming low you can temporarily improve the print quality by redistributing the toner (shake the print cartridge). However, you should replace the print cartridge to solve the problem permanently.

Redistributing Toner

When the print cartridge is near the end of its life, white streaks or light print occurs. The Error LED will come on. You can temporarily re-establish the print quality by redistributing the remaining toner in the cartridge.
Note: Help the environment by recycling your used toner cartridge. Refer to the recycling brochure packed with the toner cartridge for details.

  1. Open the Front Cover.
  2. Lightly push the used cartridge down, then pull it out.
  3. Unpack the new toner cartridge and gently shake it horizontally four or five times to distribute the toner evenly inside the cartridge.
  4. Save the box and the cover for shipping. Slide the new toner cartridge in until it locks into place.

Standard of guarantee for consumable parts.

Please refer to User Manual or Instructions on Fax/Printer Consumables SVC manual for the criteria for judging the quality of consumable parts the standard of guarantee on those parts.

How to identify a refilled toner cartridge.

One way security screws are used in the manufacture of the cartridge – check if these are damaged.

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