KONICA MINOLTA qms_pagepro_4100.pdf

++ Service ++ Service ++ Service ++ Service ++ Service ++ Service ++

PagePro 4100E/GN/W

Service Manual

July 2000

1750044-001A

Trademark Acknowledgments

The MINOLTA-QMS logo is a trademark of MINOLTA-QMS, Inc.

PagePro is a trademark of Minolta Co., Ltd.

LaserJet and PCL are registered trademarks of Hewlett-Packard Company.

Centronics is a registered trademark of Centronics Inc.

MS-DOS, Microsoft, and Windows are registered trademarks of Microsoft Corporation.

IBM is a registered trademark of International Business Machines Corporation.

Adobe and PostScript are trademarks of Adobe Systems, Inc.

Centronics is a registered trademark of Centronics Inc.

All other brand or product names are trademarks or registered trademarks of their

respective companies or organizations.

Safety Precautions for Inspection and Service

When performing inspection and service procedures, observe the following precautions

to prevent accidents and ensure the utmost safety.

*Depending on the model, some of the precautions given on the following pages do not

apply.

Different markings are used to denote specific meanings as detailed below.

Indicates a potentially hazardous situation, which if not avoided

could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation, which if not avoided

may result in minor or moderate injury. It is also used to alert

against unsafe practices.

The following graphic symbols are used to give instructions that need to be observed.

Used to call the service engineer attention to what is graphically represented

inside the marking (including a warning).

Used to prohibit the service engineer from doing what is graphically repre-

sented inside the marking.

Used to instruct the service engineer to do what is graphically represented

inside the marking.

WARNING

1.Always observe precautions.

• Parts requiring special attention in this product will include a label containing

the mark shown on the left plus precautionary notes. Be sure to observe the

precautions.

• Be sure to observe the “Safety Information” given in Operator’s Manual.

2.Before starting the procedures, be sure to unplug the power cord.

• This product contains a high-voltage unit and a circuit with a large current

capacity that can cause an electric shock or burn.

• The product also contains parts that can jerk suddenly and cause injure.

• This product uses a laser. Laser beam leakage may cause eye damage or blind-

ness.

WARNING

3.Use the specified parts.

• For replacement parts, always use the genuine parts specified in the manufac-

turer’s Parts Manual. Installing a wrong or unauthorized part could cause

dielectric breakdown, overload, or undermine safety devices resulting in possi-

ble electric shock or fire.

• Replace a blown electrical fuse or thermal fuse with its corresponding genuine

part specified in the manufacturer’s Parts Manual. Installing a fuse of a differ-

ent make or rating could lead to a possible fire. If a thermal fuse blows fre-

quently, the temperature control system is probably the cause, and action must

be taken to eliminate the problem.

4.Handle the power cord with care and never use a multiple socket.

• Do not break, crush or otherwise damage the power cord. Placing a heavy

object on the power cord, or pulling or bending it may damage it, resulting in a

possible fire or electric shock.

• Do not use a multiple outlet to which any other appliances or machines are

connected.

• Be sure the power outlet meets or exceeds the specified capacity.

5.Be careful about the high-voltage parts.

• A part marked with the symbol shown on the left carries a high voltage.

Touching it could result in an electric shock or burn. Be sure to unplug the

power cord before servicing this part or the parts near it.

6.Do not keep your hands wet when performing the procedures.

• Do not unplug or plug in the power cord, or perform any kind of service or

inspection with wet hands. Doing so could result in an electric shock.

7.Do not touch a high-temperature part.

• A part marked with the symbol shown on the left and other parts such as the

exposure lamp and fusing roller can be very hot while the machine is ener-

gized. Touching them may result in a burn.

• Wait until these parts have cooled down before replacing them or any sur-

rounding parts.

8.Make a ground connection at all times (This item may not be effected in the USA).

• Be sure to connect a ground wire to the ground terminal even when performing

an inspection or repair. Without proper grounding, electrical leakage could

result in an electric shock or fire.

• Never connect the ground wire to a gas pipe, water pipe, telephone ground

wire, or a lightning conductor.

9.Do not modify the product.

• Modifying this product in a manner not authorized by the manufacturer may

result in a fire or electric shock. If this product uses a laser, laser beam leakage

may cause eye damage or blindness.

10.Restore all parts and harnesses to their original positions.

• To ensure safety and prevent product damage, make sure the harnesses are

returned to their original positions and properly secured in their clamps and

saddles in order to avoid hot parts, high-voltage parts, and sharp edges, or

being crushed.

• To ensure safety, make sure that all tubing and other insulating materials are

returned to their original positions. Make sure that floating components

mounted on the circuit boards are at their correct distance and position off the

boards.

CAUTION

1.Precautions for Service Jobs

• A toothed washer and spring washer were originally used, they must be rein-

stalled. Omitting them may result in contact failure which could cause an

electric shock or fire.

• When reassembling parts, make sure that the correct screws (size, type) are

used in the correct places. Using the wrong screw could lead to stripped

threads, poorly secured parts, poor insulating or grounding, and result in a mal-

function, electric shock or injury.

• Take great care to avoid personal injury from possible burrs and sharp edges on

the parts, frames and chassis of this product.

• When moving the product or removing an option, use care not to injure your

back or allow your hands to be caught in mechanisms.

2.Precautions for Servicing with Covers and Parts Removed

• Wherever possible keep all parts and covers mounted when energizing the

product.

• If energizing the product with a cover removed is absolutely unavoidable, do

not touch any exposed live parts and use care not to allow your clothing to be

caught in the moving parts. Never leave a product in this condition unattended.

• Never place disassembled parts or a container of liquid near opened areas of

the product. Product parts falling into, or the liquid spilling inside the mecha-

nism could result in an electric shock or fire.

• Never use a flammable spray near the product. This could result in a fire.

• Make sure the power cord is unplugged before removing or installing circuit

boards or plugging in or unplugging connectors.

• Always use the interlock switch actuating jig to actuate an interlock switch

when a cover is opened or removed. The use of folded paper or some other

object may damage the interlock switch mechanism, possibly resulting in an

electric shock, injury or blindness.

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