Konica Minolta KN-303 User Manual
SERVICE MANUAL
MODEL
KN-303
NOVEMBER 2000
CSM-KN303
KN-303
SERVICE MANUAL
Used on Models
7020/7030/7045
NOVEMBER 2000
IMPORTANT NOTICE
Because of the possible hazards to an inexperienced
person servicing this equipment, as well as the risk of
damage to the equipment, Konica Business Technologies strongly recommends that all servicing be performed by Konica-trained service technicians only.
Changes may have been made to this equipment to
improve its performance after this service manual was
printed. Accordingly, Konica Business Technologies,
Inc., makes no representations or warranties, either
expressed or implied, that the information contained in
this service manual is complete or accurate. It is understood that the user of this manual must assume all risks
or personal injury and/or damage to the equipment while
servicing the equipment for which this service manual
is intended.
Corporate Publications Department
© 2000, KONICA BUSINESS TECHNOLOGIES, INC.
All rights reserved.
Printed in U.S.A.
Safety and Important Warning Items
SAFETY AND IMPORTANT WARNING ITEMS
Read carefully the Safety and Important Warning Items described below to understand them before
doing service work.
IMPORTANT NOTICE
Because of possible hazards to an inexperienced person servicing this equipment, as well as the
risk of damage to the equipment, Konica Corporation, strongly recommends that all servicing be
performed only by Konica-trained service technicians.
Changes may have been made to this equipment to improve its performance after this service
handbook was printed. Accordingly, Konica Corporation, makes no representations or warranties,
either expressed or implied, that the information contained in this service handbook is complete or
accurate. It is under-stood that the user of this service handbook must assume all risks or personal
injury and/or damage to the equipment while servicing the equipment for which this service hand-
book is intended.
Therefore, this Service Handbook must be read carefully before doing service work both in the
course of the technical training and even after that, for keeping the correct maintenance and control
of the copying machine. Keep the Service Handbook also for the future service. When it is impos-
sible to read the description about safety and warning (due to contamination or tear), the relevant
page should be re-placed.
DESCRIPTION ITEMS FOR Danger, Warning AND Caution
In this Service Handbook, each of three expressions, “ Danger, Warning and Caution” is
defined as follows together with a symbol mark to be used in a limited meaning.
When servicing, the relevant works (disassembling, assembling, adjustment, repair and mainte-
nance) need to be conducted with utmost care.
Danger: Actions having a high possibility of suffering death or serious
wound
Warning: Actions having a possibility of suffering death or serious wound
Caution: Actions having a possibility of suffering a slight wound, medium
trouble and material damage
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Safety and Important Warning Items
SAFETY WARNINGS
● MODIFICATIONS NOT AUTHORIZED BY Konica
Konica copiers are renowned for their high reliability. This reliability is achieved through high-quality
design and a solid service network.
Photocopier design is a highly complicated and delicate process where numerous mechanical,
physical, and electrical aspects have to be taken into consideration, with the aim of arriving at
proper tolerances and safety factors. For this reason, unauthorized modifications involve a high risk
of degrading performance and safety. Such modifications are therefore strictly prohibited. The points
listed below are not exhaustive, but they illustrate the reasoning behind this policy.
Prohibited Actions :
(1) Using extension cables or a different power cord than specified by Konica.
(2) Using other fuses than specified by Konica. Safety will not be assured, lead-
ing to a risk of fire and injury.
(3) Disabling fuses or bridging fuse terminals with wire, metal clips, solder or
similar. (This applies also to thermal fuses.)
(4) Removing air filters (except for replacement).
(5) Disabling relay functions (such as wedging paper between relay contacts,
etc.).
(6) Disabling safety functions (interlocks, safety circuits, etc.). Safety will not be
assured, leading to a risk of fire and injury.
(7) Performing actions to copier not described in the instruction manual or the
service handbook.
(8) Using parts other than specified by Konica.
● CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE
Konica copiers are extensively tested before shipping, to ensure that all applicable safety stan-
dards are met, in order to protect the customer and customer engineer from the risk of injury.
However, in daily use, any electrical equipment will be subject to parts wear and eventual failure. In
order to maintain safety and reliability, the customer engineer must perform regular safety checks.
Caution :
(1) Wear clothing that facilitates work and is designed for safety.
(2) Carry out all procedures carefully to prevent injury.
(3) Be sure to disconnect the power cord of the copier and all optional equip-
ment from the AC outlet.
Simply turning off the power switch is not sufficient, because paper feed
units or other electrical equipment may be powered also when the power
switch is turned off.
(4) Proceed with special care when performing operation checks or adjustment
while the unit is powered. When carrying out operation checks or adjust-
ment while external covers are removed, the risk of electrical shock exists
when touching parts which carry high voltage or electrical charge. The risk
of injury exists when touching moving parts such as gears or chains.
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Safety and Important Warning Items
The following list is not exhaustive, but it includes actions which must be carried out at every ser-
vice call.
Caution :
(1) Check external covers and the frame for sharp edges, burrs, or nicks.
(2) Check external covers and hinges for loosening or damage.
(3) Check wiring for squeezing or damage.
(4) Check power cord for insulation problems (conductor must not be exposed).
(5) Check that power cord is properly connected.
Warning :
(1) Verify that the copier is properly grounded. If a problem is detected, estab-
lish a proper ground connection.
(2) Connecting the ground lead to an improper point such as listed below re-
sults in a risk of explosion and electric shock.
Unsuitable ground points:
- Gas pipe
- Lightning rod
- Telephone line ground
- Plastic water pipe or water pipe or faucet that has not been approved by
authorities for grounding use
● PRECAUTIONS FOR ON-SITE SERVICE
Caution :
(1) Before performing maintenance work, read all relevant documentation (ser-
vice handbook, technical notices, etc.) and proceed according to the pre-
scribed procedure, using only the prescribed tools. Do not carry out any
adjustments not described in the documentation.
(2) If the power cord is damaged, replace it only with the specified power cord.
If the power cord insulation has been damaged and there are exposed sec-
tions, shortcircuits and overheating may occur, leading to a serious fire risk.
(3) Do not route the power cord so that it can be stepped on or pinched. Other-
wise overheating may occur, leading to a serious fire risk.
(4) When disconnecting any cables, always grasp the connector and not the
cable (especially in the case of AC and high-voltage leads).
(5) Carefully remove all toner remnants from electrical parts, electrodes, etc.
(6) Make sure that wiring cannot come into contact with sharp edges, burrs, or
other pointed parts.
(7) Double-check to make sure that all screws, components, wiring, connec-
tors, etc. that were removed for maintenance have been reinstalled in the
original location. (Pay special attention to forgotten connectors, pinched
cables, forgotten screws, etc.)
(8) When installation and preventive maintenance, verify that the power cord
has been securely plugged into the AC outlet. Contact problems may lead
to increased resistance, overheating, and the risk of fire.
Warning :
(1) Before disassembling or adjusting the optical unit or any parts that use a
laser, make sure that the power cord has been disconnected.
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Safety and Important Warning Items
(2) Do not remove the main cover of the write unit. Direct exposure of the eye to
laser beams may lead to blindness.
(3) Do not turn the copier on while the write unit is not installed in its normal
position.
(4) Danger of explosion if battery is incorrectly replaced, replace only with the
same or equivalent recommended by the manufacturer. Discard used bat-
teries according to the manufacture’s instructions.
Vorsicht :
(4) Expiosionsgefahr dei unsachegemäßem Austausch der Battetie. Ersatz nur
durch denselben oder einen vom. Hersteller empfohlenen gleichwertigen Typ.
Entsorgung gebrauchter Batterien nach Angaben des Herstellers.
● HANDLING OF MATERIALS FOR SERVICING
Caution: Drum cleaner (alcohol-based) and roller cleaner (acetone- based) are
highly flammable and must be handled with care.
When using these materials for cleaning of copier parts, observe the
following pre-cautions.
(1) Disconnect the power cord from the AC outlet.
(2) Use only a small amount of cleaner at a time and take care not to spill any
liquid. If this happens, immediately wipe it off.
(3) Perform cleaning only in an environment where sufficient ventilation is assured.
Breathing large quantities of organic solvents can lead to discomfort.
(4) Do not replace the cover or turn the unit on before any solvent remnants on
the cleaned parts have fullyevaporated.
Caution: Toner and developer are not harmful sub-stances, but care must be
taken not to breathe excessive amounts or let the substances come
into contact with eyes etc.
If this happens, immediately rinse with eye wash and plenty of water,
and consult a physician.
● MEASURES TO TAKE IN CASE OF AN ACCIDENT
(1) If an accident has occurred, the distributor who has been notified first must
immediately take emergency measures to provide relief to affected persons
and to prevent further damage.
(2) If a report of a serious accident has been received from a customer, an on-
site evaluation must be carried out quickly and Konica Corporation must be
notified.
(3) To determine the cause of the accident, conditions and materials must be
recorded through direct on-site checks, in accordance with instructions is-
sued by Konica Corporation.
● CONCLUSION
Safety of users and customer engineers has topmost priority, ranking even higher than operability.
Safety depends on a appropriate maintenance work and is maintained by proper daily service work
conducted by customer engineers. When performing service, each copier on the site must be
tested for safety. The customer engineer must verify the safety of parts and ensure appropriate
management of the equipment.
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CONTENTS
SAFETY AND IMPORTANT WARNING ITEMS .......................................... C-1
IMPORTANT NOTICE ................................................................................. C-1
DESCRIPTION ITEMS FOR Danger, Warning AND Caution...................... C-1
SAFETY WARNINGS .................................................................................. C-3
● CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE ...................................... C-3
● PRECAUTIONS FOR ON-SITE SERVICE .................................................................. C-3
Chapter 1. Overview
■ Product specifications................................................................................1-1
● KN-303 network card...................................................................................................1-1
■ Product overview .......................................................................................1-2
●Capabilities of the KN-303 Network Card......................................................................1-2
Contents
Chapter 2. Assembly / Disassembly
■ Assembly/Disassembly.............................................................................2-1
● To Install to the IP-421/IP-431 Print Controllers ...........................................................2-1
● To remove from the IP-421/IP-431 Print Controllers ....................................................2-2
Chapter 3. Troubleshooting
■ LED Status Indicator.................................................................................3-1
■ Status Page ..............................................................................................3-2
■ Resetting the KN-303 to Factory Default .................................................. 3-4
■ How to Diagnose Problems ...................................................................... 3-5
● Troubleshooting Network Hardware Connections .........................................................3-6
●Troubleshooting MAP Problems ....................................................................................3-6
● Troubleshooting NetWare Protocol ...............................................................................3-6
● NetWare Checklist .......................................................................................................3-6
● File Server Checklist....................................................................................................3-7
● Workstation Checklist ..................................................................................................3-7
● Print Server Card Configuration Checklist ....................................................................3-7
● Printer Server/File Server/Printer Checklist ..................................................................3-8
● Workstation to KN-303 Print server Connection Checklist ............................................3-8
● KN-303 Loses Its File Server Connection ....................................................................3-8
● Unable to Print from a Different Context.......................................................................3-8
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Contents
Chapter 4. Appendices
■ Rewriting the firmware................................................................................ 4-1
● Preparation ..................................................................................................................... 4-1
● Procedure of rewriting the firmware................................................................................ 4-1
■ Functions of parts mounted on the board. .................................................4-2
● Jumpers .......................................................................................................................... 4-3
Index
Index ....................................................................................................... Index-1
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