Hitachi SL1 Manuale utente

MANUAL NO. :

MAINTENANCE MANUAL

FOR

HITACHI COLOR LASER PRINTER

MODEL SL1

Hitachi, Ltd.

Tokyo, Japan

February, 27 , 1998

Read & Keep This Manual

• Read the safety instructions carefully, and understand the contents before starting the

maintenance Work.

• Keep this manual always available for reference.

No, Date of Revision Revision Code Description of Revision

1 July 14, 1997 First Edition First Edition (Original)

2 October 13, 1997 Revision “A” First revision made and issued as Rev.”A”

3 February 27, 1998 Revision “B” First revision made and issued as Rev.”B”

Revision Control Table

This equipment has been tested and found to comply with the limits for a Class B digital

device pursuant to Part 15 of FCC Rules. These limits are specified to provide the

reasonable protection against harmful interference in a residential installation.

Since this equipment generates, uses, and radiates the radio frequency, it may cause

harmful interference to the radio communications if not installed or used in accordance

with the instructions set out hereunder. However, there is no guarantee that such

interference will not occur in a particular installation.

If this equipment causes harmful interference to the radio or television reception, which

can be checked and confirmed by powering the equipment off and on, the users are

encouraged to correct the interference by taking one or more of the following counter-

measures:

. Reorient or relocate the receiving antenna.

. Give more clearance between the equipment and receiver.

. Connect the equipment into the outlet of other circuit which is different from the

one being used for the receiver.

. Consult the dealer or experienced radio/television technician for help.

FCC Notice

WARNING

Canadian Compliance

This digital apparatus does not exceed the Class B limits for radio noise emissions from

digital apparatus set out in the Radio Interference Regulations of the Canadian

Department of Communications.

"Le presnt appareil numerique n'emet pas de bruits radioelectriques depassant les lim-

ites applicables aux appareils numeriques (de la Class B) prescrites dans le Reglement

sur le brouillage radioelectrique edicte par le ministere des Communications du

Canada."

( i )

Product Safety

Laser Product

SL1 is certified as a Class 1 laser product and complies with DHHS Laser-Radiation

Standards, 21 CFR Chapter 1, Subchapter J.

Caution

Use of controls, adjustments or performances of procedures other than those specified

in this Manual may result in hazardous radiation exposure.

SL1 is provided with the ozone filter in order to reduce exhausted ozone in compliance

with Product Safety Standards. Ozone filter must be replaced with new filter yearly,

otherwise, it may cause strong odor which will likely have ill effects to bronchial tubes.

Therefore, this periodical replacement with new filter must be strictly respected.

HITACHI, LTD. MAKES NO REPRESENTATION OR WARRANTIES OF ANY KIND

WHATSOEVER WITH RESPECT TO THE CONTENTS HEREOF AND SPECIFICALLY

DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR

ANY PARTICULAR PURPOSE.

Ozone Gas

Caution

Documentation Disclaimer

(ii)

SAFETY INSTRUCTIONS

1. Safety Instructions

1.1 Safety Principle

(1). Before starting your operation, read this Manual thoroughly. Especially, read

the safety instructions of this section carefully and understand the contents.

(2). Perform all the operations by following the procedures described in this

Manual. Follow all the cautions and warnings set out in the procedures and

on safety labels affixed on the machine. Failure to do so may result in the

human injuries or equipment damages.

(3). Perform only the procedures explained in this Manual. Refrain from opening

or touching any portions that are not related with your operation.

(4). Repair and replacement of parts should be performed by trained and qualified

persons only. Operator should not attempt to do such repair or replacement

works.

(5). It must be appreciated that above-mentioned cautions and warnings do not

cover everything, because it is impossible to guess or evaluate all the

circumstances beforehand.

1.2 Special Safety Information

(1). Introductory Information

The cautions and warnings are made clear by following the "Safety Alert

Symbol" or "Signal Words" such as DANGER, WARNING and CAUTION.

. Safety Alert Symbol

This is the safety alert symbol. When you find this symbol placed on

your equipments or marked in this Manual, be alert for the potential of

human injuries. Follow the recommended precautions and safety

operation practices.

(iii)

(1). Introductory Information (..... continue)

. Understanding Signal Words

DANGER is used to indicate the presence of a hazard which will cause

severe human injuries or fatal accident if the warning is ignored.

WARNING is used to indicate the presence of a hazard or unsafe practices

which may cause severe human injuries or fatal accident if the warning is

ignored.

CAUTION is used to indicate the presence of a hazard or unsafe practices

which may cause minor human injuries if the warning is ignored.

CAUTION also calls attention to safety messages in this Manual.

. Follow Safety Instructions

Carefully read all the safety messages set out in this Manual and also in the

safety signs placed on your equipments. In this Manual, the safety

instructions (safety alert symbols and signal words) are bracketed by

rectangular enclosure to call for attention. Keep the safety signs in good

condition without missing or damage. Replace the safety signs if smeared

or damaged. Learn how to operate the equipment and how to use the

control properly. Do not let anyone operate without acknowledging the

instructions. Keep the equipments in proper working condition.

Unauthorized modification to equipments may impair the function & safety,

and affect the life of equipments.

Listed below is the various kind of "WARNING" contained in this Manual.

WARNING

HAZARDOUS VOLTAGE

It may cause serious injuries or fatal accidents. Voltage is now applied

from the power supply of printer. There is the danger of electrical shock if

you touch the active area inside the printer.

Make sure to turn the power supply switch OFF and pull out the plug from

the outlet before starting maintenance work to printer.

(iv)

. Follow Safety Instructions (.... continue)

HARMFUL OZONE GAS

Inhalation of excessive amount of ozone gas may adversely affect the

respiratory organs.

Ozone Filter is provided to this printer to reduce the exhausted ozone.

This filter must be replaced with new filter periodically in accordance with

the Manual attached to this printer.

Listed below are the various kinds of "CAUTION" contained in this Manual.

HOT SURFACE

Can cause a burn.

Fusing Unit is approx.160 hot , so that perimeter is also very hot.

When you need to change the cleaning pad or remove jammed papers,

wait about 20 minutes after opening up the paper exit unit and confirm the

unit to be well cooled down.

ROTATING PARTS

Be cautioned about the potential danger of various rollers to get your

fingers or hand caught into the machine and cause serious injuries.

Note that the exit roller ejecting printed papers is rotating while printing.

Be careful not to get your hairs, fingers, hands, and sleeve or necktie

caught in the machine while operating the machine.

WARNING

CAUTION

(v)

. Follow Safety Instructions (.... continue)

HAZARDOUS POWDER

Toner is fine powder to cause powder explosion if dumped into the fire.

Strictly refrain from dumping toner into the fire for disposal.

Toner is fine powder to cause troubles to eyes and respiratory organs if

inhaled.

Handle carefully toner cartridge, waste toner pack and developing unit not

to spread the toner.

HAZARDOUS POWDER

POWER CORDS & PLUGS

This printer is equipped with 3-wire power cords and 3-pronged plugs

(bi-polar plug with grounding) for the user's safety.

Use these power cords in conjunction with properly grounded electrical

receptacles to avoid an electrical shock.

SAFETY INTERLOCK

Cover and Paper Delivery Unit of this printer have electrical safety interlocks

to turn the power off whenever they are opened. Do not attempt to

circumvent these safety interlocks.

CAUTION

(vi)

CONTENTS
PREFACE and SAFETY INSTRUCTIONS
OUTLINE OF PRODUCT
SPECIFICATIONS OF PRODUCT
INSTALLATION
STRUCTURE OF EACH COMPONENT SYSTEMS
PERIODIC MAINTENANCE
OPERATION AND ADJUSTMENT OF OPERATOR PANEL
REPLACEMENT OF MAINTENANCE PARTS
TROBLESHOOTING
PARTS LIST