Konica Minolta DB-432 User Manual

SERVICE MANUAL

MODEL

DB-432

Drawer Base Unit

(With Parts Catalog)

DECEMBER 2002

CSM-DB432

DB-432

SERVICE MANUAL

Used On Models 8020/8031

December 2002

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 Publishing Department

© 2002, KONICA BUSINESS TECHNOLOGIES, INC.

All rights reserved.

Printed in U.S.A.

CONTENTS

GENERAL

1. SPECIFICATIONS ........................................................................................... G-1

2. PARTS IDENTIF IC ATION ........... ............... .............. ............... ............... .........G-1

3. CROSS-SECTIONAL VIEW ............................................................................G-2

4. DRIVE SYSTEM ..............................................................................................G-2

5. ELECTRICAL COMPONENTS LAYOUT ........................................................G-3

DIS/REASSEMBLY, ADJUSTMENT

1. DISASSEMBLY ...............................................................................................D-1

1-1. Maintenance Schedule ............................................................................D-1

1-2. Removal of Exterior Parts ........................................................................ D-2

1-3. Removal of the Paper Take-Up Unit ........................................................D-3

1-4. Removal of the Paper Take-Up Rolls ......................................................D-4

1-5. Removal of the Feed Roll, Separator Roll and Torque Limiter Assy .......D-6

1-6. Cleaning of the Paper Take-Up Roll ........................................................D-6

1-7. Cleaning of the Feed Roll and Separator Roll ..................................... .. ..D-6

1-8. Cleani n g of the Ve r tical Transport Ro ller/Rolls ................ .. ............... .......D-7

1-9. Cleaning of the Roll with a Torque Limiter ...............................................D-7

2. ADJUSTMENT ................................................................................................. D-8

2-1. Refere n ce Po sition Adjustme n t ..................................... ............... ...........D-8

2-2. Settings for Paper Size ..................... .. ........................... ............... ...........D-9

MISFEED/MALFUNCTION DETECTION

1. MISFEED DETECTION ................................ ........................... ............... .........T-1

1-1. Location of Misfeed Detecting Sensors .............. .. .. .. .. .. .. .. .. .. .. .................T-1

1-2. Misfeed Detection Timing ........................................................................T-2

2. MALFUNCTION D ETECTION ............. ... .............. ............... ............... .............T-2

3. SENSOR CHECK ..................................... .............. ............................ .............T-3

3-1. Sensor C h e ck Sc reen ..................... .. ........................... ............... .............T-3

iii

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iv

Safety Precautions for Inspection and Service

When performing inspection and service procedures, observe the following precautions to
prevent accidents and ensure utmost safety.

Depending on the model, some of the precautions given in the following do not apply.

✽

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

Indicates a potentially hazardous situation which, if not avoided,

WARNING

CAUTION

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

Used to call the service technician’s attention to what is graphically represented
inside the marking (including a warning).

Used to prohibit the service technician’s from doing what is graphically repre­sented inside the marking.

Used to instruct the service technician’s to do what is graphically represented
inside the marking.

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 the Operator’s Manual.

•

could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.

WARNING

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 may cause an electric shock or burn.
The product also contains parts that can jerk suddenly and cause injury.

•

If this product uses a laser, laser beam leakage may cause eye damage or

•

blindness.

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 possi­ble 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 different
make or rating could lead to a possible fire. If a thermal fuse blows frequently,
the temperature control system may have a problem and action must be taken
to eliminate the cause of the problem.

P-1

4. Handle the power cord with care and never use a multiple outlet.
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 appliance or machine is con-

•

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

•

5. Be careful with the high-voltage parts.
A part marked with the symbol shown on the left carries a high voltage. Touch-

•

ing 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 work with wet hands.
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 energized.
Touching them may result in a burn.
Wait until these parts have cooled down before replacing them or any surround-

•

ing parts.

8. Maintain a grounded connection at all times. (This item may not apply in the USA.)
Be sure to connect the ground wire to the ground terminal even when perform-

•

ing 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 remodel 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 promote 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, sharp edges, or being
crushed.
To promote 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.

P-2

CAUTION

1. Precautions for Service Jobs
A toothed washer and spring washer, if used originally, must be reinstalled.

•

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 mal­function, electric shock or injury.
T ake great care to avoid personal injury from possible burrs and sharp edges on

•

the parts, frames and chassis of the 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 feasible, 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 on the product. Parts

•

falling into, or th e liquid spilling ins id e, the mechanism c o u ld r e s u lt in a n el e ct ric
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.

3. Precautions for the Working Environment
The product must be placed on a flat, level surface that is stable and secure.

•

Never place this product or its parts on an unsteady or tilting workbench when

•

servicing.
Provide good ventilation at regular intervals if a service job must be done in a

•

confined space for a long period of time.
Avoid dusty locations and places exposed to oil or steam.

•

Avoid working positions that may block the ventilation ports of the product.

•

4. Precautions for Handling Batteries (Lithium, Nickel-Cadmium, etc.)
Replace a rundown battery with the same type as specified in the manufac-

•

turer’s parts manual.
Before installing a new battery, make sure of the correct polarity of the installa-

•

tion or the battery could burst.
Dispose of used batteries according to the local regulations. Never dispose of

•

them at the user’s premises or attempt to try to discharge one.

P-3

5. Precautions for the Laser Beam (Only for Products Employing a Laser)
Removing the cover marked with the following caution label could lead to possi-

•

ble exposure to the laser beam, resulting in eye damage or blindness. Be sure
to unplug the power cord before removing this cover.
If removing this cover while the power is ON is unavoidable, be sure to wear

•

protective laser goggles that meet specifications.
Make sure that no one enters the room when the machine is in this condition.

•

When handling the laser unit, observe the “Precautions for Handling Laser

•

Equipment.”

.

1167P001AA

DANGER

Invisible laser radiation when open.

AVOID DIRECT EXPOSURE
TO BEAM

0947-7127-01

1144D270AA

P-4

Other Precautions

To reassemble the product, reverse the order of disassembly unless otherwise specified.

•

While the product is energized, do not unplug or plug connectors into the circuit boards

•

or harnesses.
The magnet roller generates a strong magnetic field. Do not bring it near a watch, floppy

•

disk, magnetic card, or CRT tube.
An air gun and vacuum cleaner generates a strong electrostatic charge that can destroy

•

the ATDC sensor and other sensors. Before cleaning a component with one of these
devices, be sure to remove all the sensors. Otherwise, use a blower brush and cloth
when cleaning parts.
When handling circuit boards with MOS ICs, observe the “INSTRUCTIONS FOR HAN-

•

DLING THE PWBs WITH MOS ICs” (applicable only to the products using MOS ICs).
The PC Drum is a very delicate component. Observe the precautions given in “HAN-

•

DLING OF THE PC DRUM” because mishandling may result in serious image problems.
Note that replacement of a circuit board may call for readjustments or resetting of partic-

•

ular items, or software installation.
After completing a service job, perform a safety check. Make sure that all parts, wiring

•

and screws are returned to their original positions.
Check the area surrounding the service site for any signs of damage, wear or need of

•

repair.
Do not pull out the toner hopper while the toner bottle is turning. This could result in a

•

damaged hopper motor or locking mechanism.
If the product is to be run with the front door open, make sure that the toner hopper is in

•

the locked position.

P-5

Used Batteries Precautions

ALL Areas

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer ’s instructions.

Germany

Explosionsgefahr bei unsachgemäßen Austausch der Batterie.
Ersatz nur durch denselben oder einen vom Hersteller empfohlenen ähnlichen typ.
Entsorgung gebrauchter batterien nach Angaben des Herstellers.

France

Ily a danger d’explosion s’ily a remplacement incorrec de la batterie.
Remplacer uniquement avec une batterie du meme type ou d’un type équivalent recom­mande par le constructueur.
Mettre au rebut les batteries usageés conformément aux instructions du fabricant.

Denmark

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering Udskiftning må kun ske med bat­teri af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.

Norway

Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens instru ksj oner.

CAUTION

VORSICHT!

ATTENTION

ADVARSEL!

ADVARSEL

Sweden

Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparat­tillverkaren.
Kassera använt batteri enligt fabrikantens instruktion .

Finland

Paristo voi räjähtää, los se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä Käytetty paristo
valmistajan ohjeiden mukaisesti.

VARNING

VAROlTUS

P-6

GENERAL

Blank page

1. SPECIFICATIONS

Type : Front Loading Type LCT
Type of Paper : Plain paper
Paper Size : B5C, A4C, Letter C
Paper Weight :

Registration : Center
Paper Capacity : 2,500 sheets (1250
Power Requirements : DC24 V ± 10 %, DC5.1 V ± 5 % (supplied from copier)

Dimensions : Width.......535 mm or 21 in

Weight : 17 kg or 37-1/2 lbs.

64 to 90 g/m

Depth ......568 mm or 22-1/4 in

Height .. .. .284 mm or 11-1/4 in

2

or 17 to 24 lbs.

2)

×

2. PARTS IDENTIFICATION

2

1

7

1. Lift 2

2. Vertical Transport Rolls

3. Right Side Door

4. Separator Roll

6

5. Feed Roll

6. Lift 1

7. Front Cover

G-1

4

5

3

4659M001AA

3. CROSS-SECTIONAL VIEW

1

1. Lift 2

2. Paper Take-Up Roll 2

3. Lift 1

4. Paper Take-Up Roll 1

4. DRIVE SYSTEM

Paper Take-Up Drive Mechanism

2345 6

7

8

4659M007AA

5. Vertical T ransport Roller

6. Vertical T ransport Roll

7. Feed Roll

8. Separator Roll

Vertical Transport Drive Mechanism

Lift Drive Mechanism

4659M002AB

G-2

5. ELECTRICAL COMPONENTS LAYOUT

SIDE

RCL

PWB-A

RS1

BCL

FRONT

RSEN

P1CL

LS1

S1

HMOT

RS2

EMOT

Symbol Name Symbol Name
PWB-A

LCT Control Board
LCT Transport Motor

HMOT

LCT Lift-Up Motor

EMOT

Paper Take-Up Clutch 1

P1CL

Paper Take-Up Clutch 2

P2CL

Separator Clutch

BCL

Registration Clutch

RCL

LCT Paper T ake-Up Sensor

PPS0

Paper Empty Sensor 1

PPS1

P2CL

FRONT

LS2

PPS1

EMP

Paper Standby Position Sensor

S1

Registration Sensor

RSEN

Paper Empty Sensor 2

EMP

Side Cover Set Sensor

SIDE

LCT Set Sensor
Paper Near Empty Sensor 1

RS1

Paper Near Empty Sensor 2

RS2

Lift-Up Sensor 1

LS1

Lift-Up Sensor 2

LS2

PPS0

4659M003AA

G-3

Blank page

G-4

DIS/REASSEMBLY,

ADJUSTMENT

Blank page

1. DISASSEMBLY

1-1. Maintenance Schedule

• To ensure good copies and an extended service life of the Duplex Unit, it is recom-

mended that the maintenance jobs described in this schedule be carried out.

Maintenance

PM Parts

Paper T ake-Up
Roll 1

Paper T ake-Up
Roll 2

Feed Roll
Separator Roll
Vertical

Transport Roller
Vertical

Transport Roll
Roll with torque

limiter
Torque Limiter

Assy

K=1,000 sheets

• The above maintenance schedule is to be based on the value of Counter/Life.

• Cleaning (indicated by “

transport failure occurs.

• The above information is subject to change without notice.

• The Feed Roll, Separator Roll, and Torque Limiter Assy should be replaced at the same

time.

Schedule Cycle (K)

Clean Replace

❍

❍
❍

❍
❍

❍

❍

– 200 – 112E-411

300

300 112E5123✽2
200 112E5124✽1

200 112E5125✽1

––1☞ D-7

––2☞ D-7

––1☞ D-7

” in the above schedule) should be performed when a paper

❍

Tools
Used for
Cleaning

Cloth,

alcohol

Parts No. QTY

112E5122✽1

✽

1

Counter/

Life

LCT

Parts 1

LCT

Parts 2

Reference

Page

D-4

☞

D-4

☞

D-6

☞

D-6

☞

D-6

☞

D-1

1-2. Removal of Exterior Parts

1

2

4659D001AA 4496D002AA

No. Part Name Removal Steps

1 Left Cover Remove two screws and take off the cover.
2 Front Cover
3 Right Side Door Open this door and take it off.

4 Maintenance Cover Remove one screw and take off the cover.
5 Rear Cover
6 Right Cover Remove two screws and take off the cover.

Slide out the drawer, remove three screws, and take off the
cover.

After the Maintenance Cover has been removed, remove four
screws and take off the cover.

3

6

4

5

D-2

1-3. Removal of the Paper Take-Up Unit

1. Slide out the LCT.

2. Remove two screws and the Left Cover.

3. Remove one screw and the Maintenance Cover.

4659D003AA

4. Remove four screws and the Rear Cover.

5. Unplug three connectors and remove the harness
from four cord clamps.

4659D004AA

6. Remove two screws and the Right Cover.

4659D011AA

4496D006AB

7. Open the Right Side Door.

8. Remove two screws and the Paper Take-Up Unit.

D-3

1-4. Removal of the Paper Take-Up Rolls

1. Remove the Paper Take-Up Unit.

2. Unplug one connector of Lift-Up Sensor 1 and one
connector of Paper Take-Up Clutch 1 on the Paper
Take-Up Roll 1 Assy.

3. Unhook two springs.

4496D007AC

4. Remove one screw and, while taking off the timing
belt in the direction of the clutch, remove the Paper
Take-Up Roll 1 Assy.

4496D008AC

NOTE

• When reinstalling the Paper Take-Up Roll 1 Assy,

make sure that the edges of the assy are positioned
correctly as illustrated.

4659D005AA

4496D009AD

4659D006AA

5. Unplug one connector of Lift-Up Sensor 2 and one
connector of Paper Take-Up Clutch 2 on the Paper
Take-Up Roll 2 Assy.

6. Unhook two springs.

7. Remove one screw and the Paper Take-Up Roll 2
Assy.

D-4

4659D007AA

4496D012AB

4659D008AA

NOTE

• When reinstalling the Paper Take-Up Roll 2 Assy,

make sure that the edges of the assy are positioned
correctly as illustrated.

NOTE

• When reinstalling each Paper Take-Up Roll assy,

make sure that the Paper Take-Up Clutch is posi­tioned correctly as illustrated.

8. Snap off one C-clip from the Paper Take-Up Roll 1
shaft.

9. Remove the shaft and Paper Take-Up Roll 1.

NOTE

• When reinstalling Paper Take-Up Roll 1, make sure

that the C-clip faces in the direction shown.

4659D009AA

4659D010AB

10. Snap off two C-clips and take off Paper Take-Up
Roll 2.

D-5

1-5. Removal of the Feed Roll, Separator Roll and Torque Limiter

Assy

1. Open the Right Side Door.

2. Snap off one C-clip from the Separator Roll shaft
and remove the Separator Roll and Torque Limiter
Assy.

4496D023AA

3. Snap off one C-clip from the Feed Roll shaft and
remove the Feed Roll.

4496D016AB

1-6. Cleaning of the Paper Take-Up Roll

1. Remove the Paper Take-Up Unit.

2. Using a soft cloth dampened with alcohol, wipe the
surface of Paper Take-Up Roll 1/2.

4496D017AC

1-7. Cleaning of the Feed Roll and Separator Roll

1. Open the Right Side Door.

2. Using a soft cloth dampened with alcohol, wipe the
surface of the Feed/Separator Roll.

4496D018AA

D-6

1-8. Cleaning of the Vertical Transport Roller/Rolls

1. Remove the Paper Take-Up Unit.

2. Using a soft cloth dampened with alcohol, wipe the
surface of the Vertical Transport Roller/Rolls.

4659D501AA

1-9. Cleaning of the Roll with a Torque Limiter

1. Slide out the LCT.

2. Using a soft cloth dampened with alcohol, wipe the
surface of the roll with a torque limiter.

4496D022AA

D-7

2. ADJUSTMENT

2-1. Reference Position Adjustment

1. Load A4-size paper in the large capacity cabinet.

• If the paper size has been changed, use the paper of the

newly set size.

2. Display the Tech. Rep. Mode screen.
(For details of how to display the Tech. Rep. Mode screen,
see the Service Manual.)

3. Touch “Machine Adjust.”

k4659P004CA

4. Touch “PRT Area.”

4659P005CA

5. Touch “Left Margin.”

4659P007CA

A

Paper Exit
Direction

4659P006CA

C4658U028AA

6. Touch “3rd.”

7. Measure width A from the edge of the paper to the pattern
printed on the test print and check that it falls within the
specified range.
<Specifications: 3.0 mm ± 1.0 mm>

8. Adjusting the Paper Reference Pos ition
If the measured width A falls outside the specified range,
enter the correction value using the or key.

D-8

2-2. Settings for Paper Size

* The default paper size setting is A4C.

1. Remove the screws (two) from the left and
right trailing edge stops.

2. Install the two trailing edge stops at the
correct positions according to the size of the
paper to be loaded and then secure them

C4659U019AA

C4659U018AA

C4659U026AA

A
4

L
T

R

B
5

A
4

LTR

B
5

A

LTR

4

B

5

with the screws (two).

3. Move the slides at the bottom of the cabinet
all the way in the direction of the arrows.

4. Remove the fixing screws (one each) on the
front and rear edge guides and lift up the
edge guides.

5. Insert the tabs on the bottom of the front and
rear edge guides into the slots corresponding
to the size of the paper to be loaded.

6. Insert the tabs on the top of the front and rear
edge guides into the slots corresponding to
the size of the paper to be loaded.

C4659U022AA

C4496U018AA

7. Make sure that all tabs on both the front and
rear edge guides are inserted in the correct
slots. Then, secure each edge guide with
the screw.

8. Slide the slides, which have been moved in
step 3, back to the positions of the edge
guides.

9. Remove the rear cover from the large
capacity cabinet (one screw).

D-9

ON

1234

10. Make the DIP switch settings according to
size of the paper to be loaded. See the table
given below.

SW1234

C4659U020AA

Letter C OFF OFF OFF OFF

A4C ON OFF OFF OFF

B5L OFF ON OFF OFF

D-10

MISFEED/MALFUNCTION

DETECTION

Blank page

1. MISFEED DETECTION

1-1. Location of Misfeed Detecting Sensors

LCT Paper Take-Up Sensor
PPS0

Paper Empty Sensor 1
PPS1

Paper Take-Up Sensor of the 2nd Drawer
PC101

Registration Sensor RSEN

Paper Standby Position
Sensor S1

T-1

4659T501AA

1-2. Misfeed Detection Timing

• The following lists the types of misfeed detection and detection timings for different mis­feed locations.

• The symbol “L” (for the leading edge) and “T” (for the trailing edge) given in ( ) indicate
the particular edge of the paper detected by the sensor.

Type Detection Start Detection
Paper left
Lift 1 paper take-up

failure

Lift 2 paper take-up
failure

Registration Sensor’s
failure to detect leading
edge

Registration Sensor’s
failure to detect trailing
edge

Paper take-up failure
Misfeed in the vertical

transport section
Misfeed caused by a size

error

✽ 1: Only when a misfeed condition is reset (when power is turned ON, LCT Drawer is slid

into position, and the door is closed)

Power Switch ON
Misfeed reset

Paper Take-Up Clutch 1 ON

Paper Take-Up Clutch 2 ON

Paper Take-Up Clutch 1 ON

Separator Clutch ON Registration Sensor (L)

Registration Clutch ON Registration Sensor (T)

LCT Paper T ake-Up Request
signal

Registration Clutch energized
Paper Take-Up Sensor of the

2nd Drawer (L)

Registration Sensor ON
Paper Standby Position

Sensor (L)
Paper Empty Sensor 1 (L)
LCT Paper Take-Up Sensor

(L)

1

✽

Paper Standby Position
Sensor (L)

Registration Clutch energized
Paper Take-Up Sensor of the

2nd Drawer (L)
Paper Take-Up Sensor of the

2nd Drawer (T)

2. MALFUNCTION DETECTION

Code Description Detection Timing

C0990 LCT Lift-Up Motor

EMOT failure to tur n

C0991 Lift 1 ascent motion

failure

C0995 LCT Transport Motor

HMOT failure to turn

C0999 Lift 2 ascent motion

failure

The overcurrent detection circuit detects an overcurrent
condition that lasts for a given period of time while EMOT
remains energized.

Lift-Up Sensor 1 LS1 is not blocked (H) within a given
period of time after EMOT has been energized (Lift 1 has
started moving up).

The HMOT Lock signal is not input for a given period of
time.

Lift-Up Sensor 2 LS2 is not blocked (H) within a given
period of time after EMOT has been energized (Lift 2 has
started moving up).

T-2

3. SENSOR CHECK

• To permit easy and safe checks of sensors, the sensor input data are checked when the
copier is in the standby state (including a misfeed, malfunction, and closure failure con­dition), thereby determining if correct signals are properly input to the sensors.

3-1. Sensor Check Screen

• The following screens are only typical and port data may look differently on actual copi­ers.

• To set the Tech. Rep. Mode -> State Confirm -> I/O Check-> Sensors 2

• <Sensor Monitor 2>

T-3

Blank page

T-4

PARTS CATALOG

Model

Rev. November, 2003

DB-432

Used on Models 8020/8031

DECEMBER 2002

KONICA BUSINESS TECHNOLOGIES, INC.

HOW TO USE THIS CATALOG

This parts catalog includes illustrations and part numbers for all replace­ment parts and assemblies used in this model.

Model-specific parts are identified in the illustrations with reference
numbers. Use the reference number to locate the corresponding part
number on the facing page.

Common hardware items, such as screws, nuts, washers, and pins, are
identified in the illustrations with reference letters. Use the reference let­ter to locate the corresponding part number on the hardware listing in the
lower right hand corner of the facing page.

If you know a part number, but don’t know where the part is used, use
the numerical index to determine the page number and reference num­ber for that part. Because some common parts are used in several
places, there may be more than one entry. Refer to the illustrations to see
where the part may be used.

If you know a part’s description, but don’t know where to look to find
the part number, use the alphabetical index to determine likely page and
reference numbers. Then look at the illustrations to determine that you
have identified the correct part. Locate the part number using the listing
on the opposite page.

Retail pricing that appears with the numerical index, while valid when
this catalog was printed, is subject to change without notice. The prices
are only suggested prices and are provided only for reference. Dealers
may determine their own selling prices. For up-to-date pricing, refer to
current Konica price lists or contact the Konica Parts Distribution Center.

How to order parts

Use standard Konica parts ordering procedures to obtain these parts.
For ordering options, contact Konica’s Parts Distribution Center.

When ordering parts, be sure to specify part numbers exactly as listed in
this catalog.

NOTE: Electrical parts may include previously used components.

Model DB-432 Konica Business Technologies, Inc. Page iii

1st Edition December, 2002

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Page iv Konica Business Technologies, Inc. Model DB-432

December, 2002 1st Edition

How to Use This Catalog . . . . . . . . . . . . . . . . . . . . . . . . . iii

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Paper Takeup Section . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Drive Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Paper Tray Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Alphabetical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Numerical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

CONTENTS

Model DB-432 Konica Business Technologies, Inc. Page 1

1st Edition December, 2002

HOUSING

Rev. November, 2003

Page 2 Konica Business Technologies., Inc. Model DB-432

December, 2002 1st Edition

Rev. November, 2003

REF. PART NUMBER DESCRIPTION

NO.

1 112E12010 Stopper
2 112E40010 Sheet
3 112E40020 Ground
4 112E40030 Shoulder Screw
5 112E12020 Cover
6 112E12030 Cover
7 112E12040 Shoulder Screw
8 112E40040 Seal

9 112E12050 Left Cover
10 112E12100 Cover
11 112E40050 Screw
12 111T43010 Stop Plate
13 112E40070 Shoulder Screw
14 112E40080 Ground
15 112E12060 Right Cover
16 112E40090 Sheet
17 111G97010 Label Warning
18 112E40100 Sheet
19 112E12070 Cover
20 112E40110 Shoulder Screw
21 112E12110 Castor
22 112E40810 Bracket
23 112E41110 Regulating Plate

HARDWARE

REF.
LTR.

a 00Z293061
b 00Z293081
c 00Z283081

PART

NUMBER

Model DB-432 Konica Business Technologies., Inc. Page 3

1st Edition December, 2002

PAPER TAKEUP SECTION

Page 4 Konica Business Technologies., Inc. Model DB-432

December, 2002 1st Edition

Rev. November, 2003

REF. PART NUMBER DESCRIPTION

NO.

1 112E40120 Holder

2 112E85010 Photosensor (RSEN.S1)

3 112E85020 Photosensor (LS1.2)

4 112E75010 Bushing

5 112E40130 Tension Spring

6 112E40140 Pulley (Z=20)

7 112E40150 Tension Spring

8 112E78010 Timing Belt

9 112E82010 Clutch (P1CL.P2CL)
10 112E40160 Pulley (Z=18)
11 112E40170 Arm
12 112E51220 Roller
13 112E77010 Gear
14 112E40180 Arm
15 112E40190 Stopper Ring
16 112E51230 Roller
17 112E77020 Gear
18 112E-9110 PWB Assembly (EMP.PPS0.1)
19 112E40450 Arm
20 112E40820 Wire Harness Assembly

HARDWARE

REF.
LTR.

a 00Z670506
b 111T00290
c 00Z163101
d 00Z293061

PART

NUMBER

Model DB-432 Konica Business Technologies., Inc. Page 5

1st Edition December, 2002

PAPER TAKEUP SECTION

Rev. March, 2003

Page 6 Konica Business Technologies., Inc. Model DB-432

December, 2002 1st Edition

Rev. November, 2003

REF. PART NUMBER DESCRIPTION

NO.

1 112E40200 Roller

2 112E40210 Plate Spring

3 112E40220 Roller

4 112E75010 Bushing

5 112E85030 Photosensor/Door Set (SIDE)

6 112E77030 Gear

7 112E40230 Sleeve

8 112E75040 Bush

9 112E77040 Gear
10 112E82020 Clutch/Registration (RCL)
11 112E82030 Clutch/Separate (BCL)
12 112E40240 Guide
13 112E40250 Lever
14 112E-4110 Arbor Assembly
15 112E51250 Roller
16 112E40190 Stopper Ring
17 112E40270 Arbor
18 112E51240 Roller
19 112E40510 Gear (Z=26)
20 112E40520 Pulley (Z=20)
21 112E40530 Gear (Z=18)
22 112E40540 Gear (Z=24)
23 112E40550 Gear
24 112E40560 Gear (Z=14/26)
25 112E40570 Gear (Z=14/26)
26 112E40580 Pulley (Z=14)
27 112E40720 Tension Spring
28 112E40860 Bracket
29 112E40870 Frame assembly
30 112E41050 Timing belt
31 112E41060 Timing belt
32 112E41010 Shaft
33 112E41020 Shaft
34 112E41030 Shaft
35 112E41040 Shaft

HARDWARE

REF.
LTR.

a 00Z293061
b 00Z670406
c 25TU01250
d 25TU01220
e 00Z670506
f 00Z670206
g 00Z670306
h 25TU01230
i 00Z670706
j 00Z163061

PART

NUMBER

Model DB-432 Konica Business Technologies., Inc. Page 7

1st Edition December, 2002

DRIVE SECTION

Page 8 Konica Business Technologies., Inc. Model DB-432

December, 2002 1st Edition

REF. PART NUMBER DESCRIPTION

NO.

1 13YT88010 IC

2 112E-9010 Wire Harness Assembly

3 112E85030 Photosensor (Front.RS1.1)

4 112E77050 Gear (Z=58)

5 112E75010 Bushing

6 112E77060 Gear (Z=72)

7 112E77070 Gear (Z=72)

8 112E80010 Motor/Lift-Up (EMOT)

9 112E40280 Magnet
10 112E40290 Pulley
11 112E80020 Motor/Transport (HMOT)
12 112E-9370 PWB Assembly/Control (PWB-A)
13 112E40300 Guide
14 112E40600 Gear (Z=16/32)
15 112E40610 Gear (Z=16/32)
16 112E40620 Gear (Z=16/32)
17 112E40630 Arbor (Collar)
18 112E40640 Gear
19 112E40650 Pulley (Z=18)
20 112E40730 Spring
21 112E40740 Coupling
22 112E40750 Shaft

HARDWARE

REF.
LTR.

a 00Z670506
b 00Z283061
d 25TU01230
e 00Z670306
f 00Z163101
g 00Z283081
h 00Z670706
i 00Z153081

PART

NUMBER

Model DB-432 Konica Business Technologies., Inc. Page 9

1st Edition December, 2002

PAPER TRAY UNIT

Rev. March, 2003

Page 10 Konica Business Technologies., Inc. Model DB-432

December, 2002 1st Edition

Rev. November, 2003

REF. PART NUMBER DESCRIPTION

NO.

1 112E40310 Polyester Film

2 112E40320 Guide

3 112E40330 Stopper

4 112E12080 Cover

5 112E12090 Handle

6 111G97020 Label Letter

7 * Not used

8 111G-8320 Heater Assembly (Option)

9 * Not used
10 112E40710 Cassette Body
11 112E40850 Rail
12 112E41070 Guide
13 112E41080 Guide
14 112E41090 Screw

HARDWARE

REF.
LTR.

a 112E00010
b 112E00020
c 00Z293081

PART

NUMBER

Model DB-432 Konica Business Technologies., Inc. Page 11

1st Edition December, 2002

PAPER TRAY UNIT

Rev. March, 2003

Page 12 Konica Business Technologies., Inc. Model DB-432

December, 2002 1st Edition

Rev. March, 2003

REF. PART NUMBER DESCRIPTION

NO.

1 112E-4010 Roller Assembly

2 112E40340 Torsion Spring

3 112E40350 Torsion Spring

4 112E40360 Pulley (Z=32)

5 112E78020 Timing Belt

6 112E40370 Wiring Saddle

7 112E40380 Wiring Saddle

8 112E40390 Wiring Saddle

9 112E40400 Cord Clamp
10 11UP00310 Edge Cover
11 11UP00150 Cable Tie
12 112E40430 Cord Clamp
13 112E40440 Edge Cover
14 112E40660 Gear (Z=24)
15 112E40670 Cam
16 112E40910 Holder
17 112E40920 Pulley (Z=20)
18 112E40930 Ground plate
19 112E40940 Shaft
20 112E40950 Bushing

HARDWARE

REF.
LTR.

a 00Z670706
b 00Z670506
c 112E00030
d 112E00040

PART

NUMBER

Model DB-432 Konica Business Technologies., Inc. Page 13

1st Edition December, 2002

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Page 14 Konica Business Technologies, Inc. Model DB-432

December, 2002 1st Edition

Rev. November, 2003

ALPHABETICAL INDEX

PART PAGE REF.

DESCRIPTION NO. NO.

A

Arbor . . . . . . . . . . . . 7 17

Arbor (Collar) . . . . . . . . 9 17

Arbor Assembly . . . . . . 7 14

Arm . . . . . . . . . . . . 5 11

Arm . . . . . . . . . . . . 5 14

Arm . . . . . . . . . . . . 5 19

B

Bracket . . . . . . . . . . . 3 22

Bracket . . . . . . . . . . . 7 28

Bush . . . . . . . . . . . . 7 8

Bushing . . . . . . . . . . 5 4

Bushing . . . . . . . . . . 7 4

Bushing . . . . . . . . . . 9 5

Bushing . . . . . . . . . . 13 20

C

Cable Tie . . . . . . . . . . 13 11

Cam . . . . . . . . . . . . 13 15

Cassette Body . . . . . . . 11 10

Castor . . . . . . . . . . . 3 21

Clutch (P1CL.P2CL) . . . . 5 9

Clutch/Registration (RCL) . 7 10
Clutch/Separate (BCL) . . . 7 11

Cord Clamp . . . . . . . . 13 9

Cord Clamp . . . . . . . . 13 12

Coupling . . . . . . . . . . 9 21

Cover . . . . . . . . . . . . 3 5

Cover . . . . . . . . . . . . 3 6

Cover . . . . . . . . . . . . 3 10

Cover . . . . . . . . . . . . 3 19

Cover . . . . . . . . . . . . 11 4

E

Edge Cover . . . . . . . . 13 10

Edge Cover . . . . . . . . 13 13

F

Frame Assembly . . . . . . 7 29

G

Gear . . . . . . . . . . . . 5 13

Gear . . . . . . . . . . . . 5 17

Gear . . . . . . . . . . . . 7 6

Gear . . . . . . . . . . . . 7 9

Gear . . . . . . . . . . . . 7 23

Gear . . . . . . . . . . . . 9 18

Gear (Z=14/26) . . . . . . 7 24

Gear (Z=14/26) . . . . . . 7 25

Gear (Z=16/32) . . . . . . 9 14

Gear (Z=16/32) . . . . . . 9 15

Gear (Z=16/32) . . . . . . 9 16

PART PAGE REF.

DESCRIPTION NO. NO.

Gear (Z=18) . . . . . . . . 7 21

Gear (Z=24) . . . . . . . . 7 22

Gear (Z=24) . . . . . . . . 13 14

Gear (Z=26) . . . . . . . . 7 19

Gear (Z=58) . . . . . . . . 9 4

Gear (Z=72) . . . . . . . . 9 6

Gear (Z=72) . . . . . . . . 9 7

Ground . . . . . . . . . . . 3 3

Ground . . . . . . . . . . . 3 14

Ground Plate . . . . . . . . 13 18

Guide . . . . . . . . . . . . 7 12

Guide . . . . . . . . . . . . 9 13

Guide . . . . . . . . . . . . 11 2

Guide . . . . . . . . . . . . 11 12

Guide . . . . . . . . . . . . 11 13

H

Handle . . . . . . . . . . . 11 5

Heater Assembly (Option) . 11 8

Holder . . . . . . . . . . . 5 1

Holder . . . . . . . . . . . 13 16

I

IC . . . . . . . . . . . . . . 9 1

L

Label Letter . . . . . . . . . 11 6

Label Warning . . . . . . . 3 17

Left Cover . . . . . . . . . 3 9

Lever . . . . . . . . . . . . 7 13

M

Magnet . . . . . . . . . . . 9 9

Motor/Lift-Up (EMOT) . . . 9 8
Motor/Transport (HMOT) . . 9 11

P

PWB Assembly

(EMP.PPS0.1) . . . . . 5 18

PWB Assembly/Control

(PWB-A) . . . . . . . . 9 12

Photosensor (Front.RS1.1) . 9 3

Photosensor (LS1.2) . . . . 5 3

Photosensor (RSEN.S1) . . 5 2
Photosensor/Door Set (SIDE) 7 5

Plate Spring . . . . . . . . 7 2

Polyester Film . . . . . . . 11 1

Pulley . . . . . . . . . . . . 9 10

Pulley (Z=14) . . . . . . . . 7 26

Pulley (Z=18) . . . . . . . . 5 10

Pulley (Z=18) . . . . . . . . 9 19

Pulley (Z=20) . . . . . . . . 5 6

Pulley (Z=20) . . . . . . . . 7 20

Pulley (Z=32) . . . . . . . . 13 4

PART PAGE REF.

DESCRIPTION NO. NO.

Pulley (Z=20) . . . . . . . . 13 17

R

Rail . . . . . . . . . . . . . 11 11

Regulating Plate . . . . . . 3 23

Right Cover . . . . . . . . . 3 15

Roller . . . . . . . . . . . . 5 12

Roller . . . . . . . . . . . . 5 16

Roller . . . . . . . . . . . . 7 1

Roller . . . . . . . . . . . . 7 3

Roller . . . . . . . . . . . . 7 15

Roller . . . . . . . . . . . . 7 18

Roller Assembly . . . . . . 13 1

S

Screw . . . . . . . . . . . . 3 11

Screw . . . . . . . . . . . . 11 14

Seal . . . . . . . . . . . . . 3 8

Shaft . . . . . . . . . . . . 7 32

Shaft . . . . . . . . . . . . 7 33

Shaft . . . . . . . . . . . . 7 34

Shaft . . . . . . . . . . . . 7 35

Shaft . . . . . . . . . . . . 9 22

Shaft . . . . . . . . . . . . 13 19

Sheet . . . . . . . . . . . . 3 2

Sheet . . . . . . . . . . . . 3 16

Sheet . . . . . . . . . . . . 3 18

Shoulder Screw . . . . . . . 3 4

Shoulder Screw . . . . . . . 3 7

Shoulder Screw . . . . . . . 3 13

Shoulder Screw . . . . . . . 3 20

Sleeve . . . . . . . . . . . 7 7

Spring . . . . . . . . . . . . 9 20

Stop Plate . . . . . . . . . 3 12

Stopper . . . . . . . . . . . 3 1

Stopper . . . . . . . . . . . 11 3

Stopper Ring . . . . . . . . 5 15

Stopper Ring . . . . . . . . 7 16

T

Tension Spring . . . . . . . 5 5

Tension Spring . . . . . . . 5 7

Tension Spring . . . . . . . 7 27

Timing Belt . . . . . . . . . 5 8

Timing Belt . . . . . . . . . 7 30

Timing Belt . . . . . . . . . 7 31

Timing Belt . . . . . . . . . 13 5

Torsion Spring . . . . . . . 13 2

Torsion Spring . . . . . . . 13 3

W

Wire Harness Assembly . . 5 20
Wire Harness Assembly . . 9 2

Wiring Saddle . . . . . . . . 13 6

Wiring Saddle . . . . . . . . 13 7

Wiring Saddle . . . . . . . . 13 8

Model DB-432 Konica Business Technologies, Inc. Page 15

1st Edition December, 2002

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Page 16 Konica Business Technologies, Inc. Model DB-432

December, 2002 1st Edition

Rev. November, 2003

NUMERICAL INDEX

PART PAGE REF.

NUMBER NO. NO.

111G-8320 11 8
111G97010 3 17
111G97020 11 6
111T43010 3 12
112E-4010 13 1
112E-4110 7 14
112E-9010 9 2
112E-9110 5 18
112E-9370 9 12
112E12010 3 1
112E12020 3 5
112E12030 3 6
112E12040 3 7
112E12050 3 9
112E12060 3 15
112E12070 3 19
112E12080 11 4
112E12090 11 5
112E12100 3 10
112E12110 3 21
112E40010 3 2
112E40020 3 3
112E40030 3 4
112E40040 3 8
112E40050 3 11
112E40070 3 13
112E40080 3 14
112E40090 3 16
112E40100 3 18
112E40110 3 20
112E40120 5 1
112E40130 5 5
112E40140 5 6
112E40150 5 7
112E40160 5 10
112E40170 5 11
112E40180 5 14
112E40190 5 15
112E40190 7 16
112E40200 7 1
112E40210 7 2
112E40220 7 3
112E40230 7 7
112E40240 7 12
112E40250 7 13

PART PAGE REF.

NUMBER NO. NO.

112E40270 7 17
112E40280 9 9
112E40290 9 10
112E40300 9 13
112E40310 11 1
112E40320 11 2
112E40330 11 3
112E40340 13 2
112E40350 13 3
112E40360 13 4
112E40370 13 6
112E40380 13 7
112E40390 13 8
112E40400 13 9
112E40430 13 12
112E40440 13 13
112E40450 5 19
112E40510 7 19
112E40520 7 20
112E40530 7 21
112E40540 7 22
112E40550 7 23
112E40560 7 24
112E40570 7 25
112E40580 7 26
112E40600 9 14
112E40610 9 15
112E40620 9 16
112E40630 9 17
112E40640 9 18
112E40650 9 19
112E40660 13 14
112E40670 13 15
112E40710 11 10
112E40720 7 27
112E40730 9 20
112E40740 9 21
112E40750 9 22
112E40810 3 22
112E40820 5 20
112E40850 11 11
112E40860 7 28
112E40870 7 29
112E40910 13 16
112E40920 13 17

PART PAGE REF.

NUMBER NO. NO.

112E40930 13 18
112E40940 13 19
112E40950 13 20
112E41010 7 32
112E41110 3 23
112E41020 7 33
112E41030 7 34
112E41040 7 35
112E41050 7 30
112E41060 7 31
112E41070 11 12
112E41080 11 13
112E41090 11 14
112E51220 5 12
112E51230 5 16
112E51240 7 18
112E51250 7 15
112E75010 5 4
112E75010 7 4
112E75010 9 5
112E75040 7 8
112E77010 5 13
112E77020 5 17
112E77030 7 6
112E77040 7 9
112E77050 9 4
112E77060 9 6
112E77070 9 7
112E78010 5 8
112E78020 13 5
112E80010 9 8
112E80020 9 11
112E82010 5 9
112E82020 7 10
112E82030 7 11
112E85010 5 2
112E85020 5 3
112E85030 7 5
112E85030 9 3
11UP00150 13 11
11UP00310 13 10
13YT88010 9 1

Model DB-432 Konica Business Technologies, Inc. Page 17

1st Edition December, 2002

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Page 18 Konica Business Technologies, Inc. Model DB-432

December, 2002 1st Edition