Oki B6500 Series Manuel utilisateur

Laser Printer

OKI B6500

Service Manual

060810A

Cautions For Operation

Contents of this document may be subjected to modification without previous notice.Oki Data

will not assume any responsibilities for accidental or incidental damages

resulting from technical or editorial errors or omission in this manual, issue of this manual,

execution of description in this manual, or use of this manual.

This document is protected by copyright. It is not forgiven to photocopy or duplicate any part

of this document in any form without previous permission in writing from Oki Data, Americas, Inc.

1. About This Manual

This manual is a standard service manual containing information required for maintenance

of this laser printer (standard specifications).

2. Cautions, Warnings and Notes

Maintenance operations requiring special cautions or additional information for procedures

in this manual are presented as "Warning", "Caution", or "Note", according to their nature.

If instructions are not observed, death or serious injury may be caused.

If instructions are not observed, personal injury or physical damage to assets

(including this laser printer) may result.

Particularly important essentials for procedures, steps, rules, etc.

Reference Incidental information to descriptions.

3. Related documents

TInstruction manuals (standard manuals)

Describe operation and handling of this laser printer.

TPerformance specifications

Describe in detail various specifications of this laser printer.

(In the event of discrepancy between this manual and the performance specifications, the

performance specifications shall take preference.)

TVideo interface specifications

Detailed video interface specifications for this laser printer

TSpare parts list

Information on maintenance parts (spare parts) for this laser printer

iii

4. Safety

To prevent possible accidents during maintenance activities, you must pay attention to the

"Warning" and "Caution" information in this manual.

Performing any dangerous operations, or procedures not included in this manual, should be

avoided.

Occasionally, it may be required to perform some procedures not covered by this manual.

These procedures should be performed carefully, always giving attention to safety.

4.1 Power source

Keep the power supply off during maintenance activities to prevent electric shock,burns and

equipment damage. Keep the power plug disconnected during the maintenance operation.

If it is necessary for the machine power to be switched ON for voltage measurements or

other similar reasons, sufficient care should be given to prevent electric shock, by following

the procedures in this manual.

While the printer is ON, never touch live components.

Power is supplied to the power unit (LVPS ASSY) even while the printer is off.

Never touch its live components.

Do not touch live components unless otherwise specified.

J20101AA

4.2 Drive units

When servicing gears or other drive units, be sure to turn them OFF and disconnect the

power plug from the receptacle. Whenever possible, drive them manually.

Never touch the gears or other moving parts while the printer is running.

4.3 High-temperature units

When servicing high-temperature units (removal, replacement, adjustment, etc.), be sure to

turn them OFF to prevent burns, injuries and an electrical hazard. Remove the power plug

from the receptacle and allow the unit to cool down before servicing.

Fusing units retain their heat after the power is removed. Wait at least 30 minutes

after removing power before servicing.

4.4 Laser beams

• Direct exposure to a laser beam can damage the eyes and cause blindness.

• Never open a cover that has a laser warning label attached.

• Before disassembling and reassembling this laser printer, be sure to turn the

printer power OFF.

• When servicing this laser printer while it is running, be sure to follow the

procedures specified in this manual.

• You should understand and exercise all safety precautions to prevent injuries

when servicing equipment that uses a laser. Carefully follow procedures to

prevent anyone in the area from exposure to the laser beam.

Laser beams have the following characteristics:

• Frequencies are higher than other beams (sun and electric bulbs) and

phases are uniform so that high monochromatic and convergence performance

can be obtained and thin beams of light can reach places at a long distance.

• Due to the high convergence, beams are highly concentrated in density and

temperature, which is dangerous to human body.

Reference: The frequency of the Laser used in this laser printer produces beams that are

invisible.

4.5 Warning/caution labels

Warning labels and caution labels are attached to this laser printer to prevent accidents.

These labels should be clear and easy to read. Check the labels for any damage such as

peeling or stains when servicing the printer.

4.5.1 Caution label for high-temperature units

4.5.2 Caution label for laser beams

Hi Temp Label

Laser Beam Label

vii

5. Installation

5.1 Power source

Do not plug too many leads into a single socket. Use a dedicated electric outlet and

confirm that the power is within specifications.

Connect the single power cord to an electric outlet capable of supplying more

power than the maximum power consumption of this laser printer.

5.2 Ground

Be sure the laser printer is properly grounded.

Be sure to connect the ground of this laser printer with one of the following:

- Grounding terminal of an electric outlet

- Copper or the like which is embedded 650 mm or deeper in the ground

- Grounding terminal for which the grounding work has been carried out

Be sure not to establish a ground with the following:

- Gas pipe

- Ground for telephone

- Water pipe which is partially made from plastic

When establishing a ground, be sure not to use the 2pin - 3pin conversion plug.

5.3 Installation location

• Ensure that there is adequate space for operating this printer.

• Install where the temperature and the humidity meet the following environmental

specifications:

During operation:

5 to 35 degree C / 15 to 85% RH (70% RH at 35 degree C, 85% RH at 32

degree C).

No condensation

Not in operation:

-20 to 40 degree C / 5 to 85%

RH (A place with no condensation)

• Install in a flat place with the angle of 5 degrees or less.

• Install in a place with the illumination of 3000 Lux or less. (Avoid direct sunlight.)

• Avoid placing near a water system, a humidifier or fire, a dusty place, or a place

which gets direct air from air conditioning.

• Avoid where volatile or flammable gas is generated.

• Avoid a poor ventilated place.

• Avoid an unstable and non-durable place.

viii

5.4 Unpacking

5.4.1 Unpacking laser printer

The printer must be carried horizontally with two or more persons.

Extreme care must be taken to avoid personal injuries.

Unpack the carton and confirm that the part numbers of the laser printer and all

components are correct. Ensure that all components are without damage.

1) Laser Printer main unit

2) 150 Paper Cassette

3) 550 Paper Cassette

4) EP CARTRIDGE

5) Power Cord

6) Instruction Manual

5.4.2 Unpacking Option Duplex

Unpack the carton and confirm that the part numbers of the Duplex Transport and all

components are correct. Ensure that all components are undamaged.

1) Option Duplex main unit

J20009A

5.4.3 Unpacking Option Face Up Tray

Unpack the carton and confirm that the part numbers of the Face Up Tray and all

components are correct. Ensure that all components are undamaged.

5.4.4 Unpacking Option 550 Paper Feeder

Unpack the carton and confirm that the part numbers of the Option 550 Paper Feeder

and all components are correct. Ensure that all components are undamaged.

1) Option 550 Paper Feeder main unit

2) Option 550 Paper Cassette

3) JOINT FEEDER (four pieces)

JG0008AA

J20007AA

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