Mita-Kyocera SRDF-2 Service Manual

SRDF-2

SERVICE

MANUAL

Published in Apr. ’02

843C0110

Safety precautions

This booklet provides safety warnings and precautions for our service personnel to ensure the safety of
their customers, their machines as well as themselves during maintenance activities. Service personnel
are advised to read this booklet carefully to familiarize themselves with the warnings and precautions
described here before engaging in maintenance activities.

Safety warnings and precautions

Various symbols are used to protect our service personnel and customers from physical danger and
to prevent damage to their property. These symbols are described below:

DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect

compliance with warning messages using this symbol.

WARNING:Serious bodily injury or death may result from insufficient attention to or incorrect compliance

with warning messages using this symbol.

CAUTION:Bodily injury or damage to property may result from insufficient attention to or incorrect

compliance with warning messages using this symbol.

Symbols

The triangle ( ) symbol indicates a warning including danger and caution. The specific point
of attention is shown inside the symbol.

General warning.

Warning of risk of electric shock.

Warning of high temperature.

indicates a prohibited action. The specific prohibition is shown inside the symbol.

General prohibited action.

Disassembly prohibited.

indicates that action is required. The specific action required is shown inside the symbol.

General action required.

Remove the power plug from the wall outlet.

Always ground the copier.

1. Installation Precautions

WARNING

• Do not use a power supply with a voltage other than that specified. Avoid multiple connections to
one outlet: they may cause fire or electric shock. When using an extension cable, always check

that it is adequate for the rated current. ............................................................................................

• Connect the ground wire to a suitable grounding point. Not grounding the copier may cause fire or
electric shock. Connecting the earth wire to an object not approved for the purpose may cause
explosion or electric shock. Never connect the ground cable to any of the following: gas pipes,
lightning rods, ground cables for telephone lines and water pipes or faucets not approved by the

proper authorities. .............................................................................................................................

CAUTION:

• Do not place the copier on an infirm or angled surface: the copier may tip over, causing injury. .....

• Do not install the copier in a humid or dusty place. This may cause fire or electric shock. ..............

• Do not install the copier near a radiator, heater, other heat source or near flammable material.

This may cause fire. ..........................................................................................................................

• Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool

as possible. Insufficient ventilation may cause heat buildup and poor copying performance. ..........

• Always handle the machine by the correct locations when moving it. ..............................................

• Always use anti-toppling and locking devices on copiers so equipped. Failure to do this may

cause the copier to move unexpectedly or topple, leading to injury..................................................

• Avoid inhaling toner or developer excessively. Protect the eyes. If toner or developer is
accidentally ingested, drink a lot of water to dilute it in the stomach and obtain medical attention
immediately. If it gets into the eyes, rinse immediately with copious amounts of water and obtain

medical attention. ..............................................................................................................................

• Advice customers that they must always follow the safety warnings and precautions in the copier’s

instruction handbook. ........................................................................................................................

2. Precautions for Maintenance

WARNING

• Always remove the power plug from the wall outlet before starting machine disassembly...............

• Always follow the procedures for maintenance described in the service manual and other related

brochures. .........................................................................................................................................

• Under no circumstances attempt to bypass or disable safety features including safety

mechanisms and protective circuits. .................................................................................................

• Always use parts having the correct specifications...........................................................................

• Always use the thermostat or thermal fuse specified in the service manual or other related
brochure when replacing them. Using a piece of wire, for example, could lead to fire or other

serious accident. ...............................................................................................................................

• When the service manual or other serious brochure specifies a distance or gap for installation of a

part, always use the correct scale and measure carefully. ...............................................................

• Always check that the copier is correctly connected to an outlet with a ground connection. ............

• Check that the power cable covering is free of damage. Check that the power plug is dust-free. If

it is dirty, clean it to remove the risk of fire or electric shock. ............................................................

• Never attempt to disassemble the optical unit in machines using lasers. Leaking laser light may

damage eyesight. ..............................................................................................................................

• Handle the charger sections with care. They are charged to high potentials and may cause

electric shock if handled improperly. .................................................................................................

CAUTION

• Wear safe clothing. If wearing loose clothing or accessories such as ties, make sure they are

safely secured so they will not be caught in rotating sections...........................................................

• Use utmost caution when working on a powered machine. Keep away from chains and belts. .......

• Handle the fixing section with care to avoid burns as it can be extremely hot. .................................

• Check that the fixing unit thermistor, heat and press rollers are clean. Dirt on them can cause

abnormally high temperatures...........................................................................................................

• Do not remove the ozone filter, if any, from the copier except for routine replacement....................

• Do not pull on the AC power cord or connector wires on high-voltage components when removing

them; always hold the plug itself. ......................................................................................................

• Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a

cable cover or other appropriate item. ..............................................................................................

• Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks........

• Remove toner completely from electronic components. ...................................................................

• Run wire harnesses carefully so that wires will not be trapped or damaged. ...................................

• After maintenance, always check that all the parts, screws, connectors and wires that were

removed, have been refitted correctly. Special attention should be paid to any forgotten

connector, trapped wire and missing screws. ..................................................................................

• Check that all the caution labels that should be present on the machine according to the

instruction handbook are clean and not peeling. Replace with new ones if necessary. ...................

• Handle greases and solvents with care by following the instructions below: ....................................

· Use only a small amount of solvent at a time, being careful not to spill. Wipe spills off completely.

· Ventilate the room well while using grease or solvents.

· Allow applied solvents to evaporate completely before refitting the covers or turning the main
switch on.

· Always wash hands afterwards.

• Never dispose of toner or toner bottles in fire. Toner may cause sparks when exposed directly to

fire in a furnace, etc...........................................................................................................................

• Should smoke be seen coming from the copier, remove the power plug from the wall outlet

immediately. ......................................................................................................................................

3. Miscellaneous

WARNING

• Never attempt to heat the drum or expose it to any organic solvents such as alcohol, other than

the specified refiner; it may generate toxic gas. ................................................................................

CONTENTS

1-1 Specifications

1-1-1 Specifications ........................................................................................................................................ 1-1-1

1-1-2 Parts names and their functions ............................................................................................................ 1-1-2

(1) Parts names .................................................................................................................................... 1-1-2

1-1-3 Machine cross section ........................................................................................................................... 1-1-3

1-1-4 Drive system ......................................................................................................................................... 1-1-4

(1) Drive system .................................................................................................................................... 1-1-4

1-2 Handling Precautions

1-2-1 Installation environment ........................................................................................................................ 1-2-1

1-3 Installation

1-3-1 Unpacking and installation .................................................................................................................... 1-3-1

(1) Unpacking ........................................................................................................................................ 1-3-1

1-4 Maintenance Mode

1-4-1 Maintenance mode ................................................................................................................................ 1-4-1

(1) Executing a maintenance item ........................................................................................................ 1-4-1

(2) Maintenance mode item list ............................................................................................................. 1-4-2

(3) Contents of maintenance mode items ............................................................................................. 1-4-3

3C0

1-5 Troubleshooting

1-5-1 Original misfeed detection .................................................................................................................... 1-5-1

(1) Original misfeed indication ............................................................................................................. 1-5-1

(2) Original misfeed detection conditions .............................................................................................. 1-5-1

(3) Original misfeeds ............................................................................................................................. 1-5-3

1-5-2 Image formation problems .................................................................................................................... 1-5-5

(1) There is a regular error between the centers of the original and copy image. ................................ 1-5-6

(2) There is a regular error between the leading edges of the original and copy image. ...................... 1-5-6

(3) There is a regular error between the trailing edges of the original and copy image. ....................... 1-5-6

1-5-3 Electrical problems ................................................................................................................................ 1-5-7

(1) The original feed motor does not operate. ....................................................................................... 1-5-7

(2) The original conveying motor does not operate. ............................................................................. 1-5-7

(3) The original feed solenoid does not operate. .................................................................................. 1-5-7

(4) The switchback feedshift solenoid does not operate. ...................................................................... 1-5-7

(5) The eject feedshift solenoid does not operate. ................................................................................ 1-5-7

(6) The switchback pressure solenoid does not operate. ..................................................................... 1-5-7

(7) The original feed clutch does not operate. ...................................................................................... 1-5-8

(8) A message indicating cover open is displayed when the DF is closed correctly. ............................ 1-5-8

(9) An original jams when the main switch is turned on. ....................................................................... 1-5-8

1-5-4 Mechanical problems ........................................................................................................................... 1-5-9

(1) No primary original feed. ................................................................................................................. 1-5-9

(2) No secondary original feed. ............................................................................................................. 1-5-9

(3) Originals jam. ................................................................................................................................... 1-5-9

1-6 Assembly and Disassembly

1-6-1 Precautions for assembly and disassembly ......................................................................................... 1-6-1

(1) Precautions ...................................................................................................................................... 1-6-1

(2) Running a maintenance item ........................................................................................................... 1-6-2

1-6-2 Original feed section ............................................................................................................................. 1-6-3

(1) Detaching and refitting the DF forwarding pulley and DF feed pulley ............................................. 1-6-3

(2) Detaching and refitting the DF separation pulley ............................................................................. 1-6-4

(3) Adjusting the DF magnification ........................................................................................................ 1-6-8

(4) Adjusting the DF center line ............................................................................................................ 1-6-9

(5) Adjusting the scanning start position ............................................................................................. 1-6-10

(5-1) Adjusting the DF leading edge registration ........................................................................... 1-6-10

(5-2) Adjusting the DF trailing edge registration ............................................................................ 1-6-11

(6) Adjusting the margins for scanning the original from the DF ......................................................... 1-6-12

1-1-1

3C0

2-1 Mechanical construction

2-1-1 Original feed section ............................................................................................................................. 2-1-1

(1) Original feed timing .......................................................................................................................... 2-1-2

2-1-2 Original switchback section ................................................................................................................... 2-1-3

(1) Operation of original switchback ...................................................................................................... 2-1-4

2-1-3 Original conveying section .................................................................................................................... 2-1-5

(1) Original switchback/conveying timing .............................................................................................. 2-1-6

2-2 Electrical Parts Layout

2-2-1 Electrical parts layout ............................................................................................................................ 2-2-1

(1) PCBs ............................................................................................................................................... 2-2-1

(2) Switches and sensors ...................................................................................................................... 2-2-2

(3) Motors .............................................................................................................................................. 2-2-3

(4) Clutches and solenoids ................................................................................................................... 2-2-4

2-3 Operation of the PCBs

2-3-1 DF driver PCB ....................................................................................................................................... 2-3-1

2-4 Appendixes

Timing chart No. 1 ........................................................................................................................................... 2-4-1

Timing chart No. 2 ........................................................................................................................................... 2-4-2

Timing chart No. 3 ........................................................................................................................................... 2-4-3

Maintenance parts list...................................................................................................................................... 2-4-4

Periodic maintenance procedures ................................................................................................................... 2-4-5

Connection diagram ........................................................................................................................................ 2-4-7

Wiring diagram ................................................................................................................................................ 2-4-8

1-1-2

1-1-1 Specifications

Type ............................................... Machine mounted type duplex sheet-through document feeder

Original feed system ...................... Automatic feed

Originals ......................................... Sheets

Original weights.............................. Single-sided original mode: 35 – 160 g/m

Double-sided original mode: 50 – 120 g/m

Original paper................................. Plain paper, thermal paper, art paper and colored paper

1

Original sizes .................................. A3 – A5R, folio/11" × 17" – 5

/2" × 81/2"

No. of originals ............................... Up to 70 sheets (A3, B4, folio, 11" × 17", 8

Up to 100 sheets (up to A4/11" × 8
Up to 30 sheets in the auto selection mode

Original processing speed.............. Original replacement: Max. 62 sheets/min (A4/11" × 81/2")

Original scanning: 167 mm/s (100%)

Power source ................................. Electrically connected to the copier (5 V DC and 24 V DC)

Dimensions .................................... 553 (W) × 478 (D) × 137 (H) mm

3

/4" (W) × 1813/16" (D) × 53/8" (H)

21

Weight ............................................Approx. 10.5 kg/23.1 lbs

2

2

1

1

/2")

/2" × 14")

3C0

1-1-1

3C0

1-1-2 Parts names and their functions

(1) Parts names

Figure 1-1-1

1 Original table
2 Original insert guides
3 DF original reversing cover
4 Original set indicator
5 Original eject cover
6 DF opening/closing lever
7 Ejection extension

1-1-2

1-1-3 Machine cross section

3C0

Paper and original path

Figure 1-1-2 Machine cross section

1 Original feed section
2 Original switchback section
3 Original conveying section

1-1-3

3C0

1-1-4 Drive system

(1) Drive system

6

1

Figure 1-1-3 Drive system (inside rear of machine)

1 Original feed motor pulley
2 Pulley 35/22/22
3 Idle gear 26
4 Original feed clutch gear
5 DF original feed pulley 18
6 DF forwarding pulley 18
7 Tension pulley
8 Original feed drive belt
9 DF forwarding belt

9

7

5

43

#

@

!

0

8

2

$

&

As viewed from machine rear

0 DF registration pulley 28/18
! Idle gear 15
@ Idle gear 20
# Switch back gear 18
$ DF registration drive belt
% Gear 22/35
^ Original conveying motor pulley
& Gear 28
* Original conveying drive belt 1

^

*

%

8

7

6

5

9

0

1

4

!

Figure 1-1-4 Drive system (inside front of machine)

1 Lower original conveying pulley 25/18
2 Gear 18/25
3 Eject gear 18
4 Middle original conveying pulley 18
5 Upper original conveying pulley 18
6 JAM release gear 24

3

2

As viewed from machine front

7 Joint gear 14
8 JAM release gear 14
9 Tension pulley
0 Eject drive belt
! Conveying drive belt 2

1-1-4

1-2-1 Installation environment

1. Installation location (Be based on the copier establishment place.)

• Avoid direct sunlight or bright lighting. Ensure that the photoconductor will not be exposed to direct sunlight or other
strong light when removing paper jams.

• Avoid extremes of temperature and humidity, abrupt ambient temperature changes, and hot or cold air directed onto
the machine.

• Avoid dust and vibration.

• Choose a surface capable of supporting the weight of the machine.

• Place the machine on a level surface (maximum allowance inclination: 1° ).

• Avoid air-borne substances that may adversely affect the machine or degrade the photoconductor, such as
mercury, acidic of alkaline vapors, inorganic gasses, NOx, SOx gases and chlorine-based organic solvents.

• Select a room with good ventilation.

3C0

b

c

3

a: 553 mm/21
b: 478 mm/18
c: 137 mm/5

/4"

13

/16"

3

/8"

Figure 1-2-1 Installation dimensions

a

1-2-1

1-3-1 Unpacking and installation

(1) Unpacking

3C0

Figure 1-3-1 Unpacking

1 Document feeder
2 Installation guide
3 Bottom pad
4 Outer case
5 Upper pad
6 Eject pad
7 Plastic sheet (1300 × 1300)

8 Plastic bag
9 Plastic bag (200 × 200)
0 Bar code labels
! Front A pad
@ Front B pad
# Rear A pad
$ Rear B pad

1-3-1

1-4-1 Maintenance mode

The copier is equipped with a maintenance function which can be used to maintain and service the machine.

(1) Executing a maintenance item

Start

3C0

Yes

Enter “10871087” using

the numeric keys.

Enter the maintenance item

number using the cursor up/down keys

or numeric keys.

Press the start key.

The selected maintenance item is run.

Press the stop/clear key.

Repeat the same

maintenance item?

Maintenance mode is entered.

The maintenance item is
selected.

Yes

No

Run another maintenance

item?

No

Enter “001” using the cursor

up/down keys or numeric keys

and press the start key.

End

Maintenance mode is exited.

1-4-1

3C0

(2) Maintenance mode item list

Section

DF U068 Adjusting the scanning position for originals from the DF 0

Item

No. setting*

U070 Adjusting the DF magnification 0

U071 Adjusting the DF scanning timing

• DF leading edge registration 8 (black and

• DF trailing edge registration 0

U072 Adjusting the DF center line 0

U074 Adjusting the DF input light luminosity (black and white copiers only) 1

U203 Operating DF separately —

U243 Checking the operation of the DF motors, solenoids and clutch —

U244 Checking the DF switches —

U263 Setting the paper ejection when copying from the DF (color copiers only)

U404 Adjusting margins for scanning an original from the DF —

Maintenance item contents

Initial

white copiers)

0 (color copiers)

TRAY (NORMAL)

* Initial setting for executing maintenance item U020

1-4-2

(3) Contents of maintenance mode items

3C0

Maintenance

item No.

U068 Adjusting the scanning position for originals from the DF

Description

Adjusts the position for scanning originals from the DF.

Purpose

Used when there is a regular error between the leading edges of the original and the copy image.

Method

Press the start key. The screen for executing is displayed.

Setting

1. Change the setting using the cursor up/down keys (in the case of black and white copiers).
Change the setting using the cursor left/right keys (in the case of color copiers).

Description Setting range Initial setting Change in value per step

Scanning position –2 to +3 0 0.254 mm (in the case of

–9 to +9 0 0.169 mm (in the case of

Increasing the setting moves the image backward, and decreasing it moves the image forward.

2. Press the start key. The value is set.

Completion

Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

U070 Adjusting the DF magnification

Adjustment

See pages 1-6-8.

U071 Adjusting the DF scanning timing

Adjustment

See page 1-6-10.

U072 Adjusting the DF center line

Adjustment

See page 1-6-9.

U074 Adjusting the DF input light luminosity (black and white copiers only)

Description

Adjusts the luminosity of the exposure lamp for scanning originals from the DF.

Purpose

Used if the exposure amount differs significantly between when scanning an original on the contact glass and
when scanning an original from the DF (installed to the black and white copiers).

Method

Press the start key. The screen for executing is displayed.

Setting

1. Change the setting using the cursor up/down keys.

Description Setting range Initial setting

DF input light luminosity 0 to 8 1

Increasing the setting makes the luminosity higher, and decreasing it makes the luminosity lower.

2. Press the start key. The value is set.

Interrupt copy mode

While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.

Completion

Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

Description

black and white copiers)

color copiers)

1-4-3

3C0

Maintenance

item No.
U203 Operating DF separately

Description

Simulates the original conveying operation separately in the DF.

Purpose

To check the DF.

Method (in the case of black and white copiers)

1. Press the start key. The screen for selecting an item is displayed.

2. Place an original in the DF if running this simulation with paper.

3. Select the item to be operated. The selected item is displayed in reverse.

4. Select the magnification using the cursor up/down keys.

Display Operation Setting range Initial setting

ADF With paper, single-sided original 50 to 200 (%) 100
RADF With paper, double-sided original 50 to 200 (%) 100
ADF (NON-P) Without paper, single-sided original 50 to 200 (%) 100

RADF (NON-P) Without paper, double-sided original 50 to 200 (%) 100

5. Press the start key. The operation starts for the selected magnification.

6. To stop continuous operation, press the stop/clear key.

Method (in the case of color copiers)

1. Press the start key. The screen for selecting an item is displayed.

2. Place an original in the DF if running this simulation with paper.

3. Select the item to be operated using the cursor up/down keys. The selected item is displayed in reverse.

Display Operation

ADF With paper, single-sided original
RADF With paper, double-sided original
ADF (NON-P) Without paper, single-sided original (continuous operation)
RADF (NON-P) Without paper, double-sided original (continuous operation)

4. Press the start key. The operation starts.

5. To stop continuous operation, press the stop/clear key.

Completion

Press the stop/clear key when the operation stops. The screen for selecting a maintenance item No. is
displayed.

Description

(continuous operation)

(continuous operation)

1-4-4

3C0

Maintenance

item No.

U243 Checking the operation of the DF motors, solenoids and clutch

Description

Turns the motors, solenoids or clutch in the DF on.

Purpose

To check the operation of the DF motors, solenoids and clutch .

Method

1. Press the start key. The screen for selecting an item is displayed.

2. Select the item to be operated (in the case of black and white copiers).
Select the item to be operated using the cursor up/down keys (in the case of color copiers).
The selected item is displayed in reverse and the operation starts.

Display Motors, solenoids and clutch Operation In operation

F MOT Original feed motor (OFM) In operation
C MOT Original paper conveying motor (OCM) In operation
FD CL Original feed clutch (OFCL) On for 0.5 s
EJ SL Eject feedshift solenoid (EFSSOL) On for 0.5 s
RJ SL Switchback feedshift solenoid (SBFSSOL) On for 0.5 s
FD SL Original feed solenoid (OFSOL) On and off
RP SL Switchback pressure solenoid (SBPSOL) On and off

3. To turn each motor off, press the stop/clear key.

Completion

Press the stop/clear key when operation stops. The screen for selecting a maintenance item No. is displayed.

U244 Checking the DF switches

Description

Displays the status of the respective switches in the DF.

Purpose

To check if respective switches in the DF operate correctly.

Start

1. Press the start key. The screen for selecting an item is displayed.

2. Select the type of switches (SW or VR) to be checked (in the case of black and white copiers).
Select the type of switches (SW or VR) to be checked using the cursor up/down keys (in the case of color
copiers).
The screen for executing each item is displayed.

Display Type of switches

SW On/off switches
VR Volume switch

Description

Method for the on/off switches (SW)

1. Turn the respective switches on and off manually to check the status.
If the on-status of a switch is detected, the corresponding switch is displayed in reverse.

Display Switches

SET SW Original set switch (OSSW)
FEED SW Original feed switch (OFSW)
REV SW Original switchback switch (OSBSW)
TMG SW DF timing switch (DFTSW)
SZ A SW Original size length switch (OSLSW)

2. To return to the screen for selecting an item, press the stop/clear key.

1-4-5

3C0

Maintenance

item No.
U244 Method for the volume switch (VR)

1. Move the original insertion guides to check the detection status of the original size width switch.
The detected original width is displayed as a numerical value with the decimals omitted.

Numerical

103.936

104.448

139.264

139.776

146.432

146.994

value

000

49.664

50.176

61.440

61.952

····························································

Description

Original width to be detected

1

/2" × 81/2"

5

A5R

B5R

Folio/A4R

B4/B5

1

8

/2" × 14"/

1

8

/2" × 11"

197.120

197.632

197.720

223.232

256

CF (11"

A3/A4

×

15")

11"
11"
11"

×

×

×

17"/
15"/
81/2"

For example, if any value between 105 and 139 is displayed when the original insertion guides are adjusted
for A4R paper, it indicates that the original width is detected correctly.

2. To return to the screen for selecting an item, press the stop/clear key.

Completion

Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-6

3C0

Maintenance

item No.

U263 Setting the paper ejection when copying from the DF (color copiers only)

Description

Sets whether the copies will be ejected in the same or opposite order as the originals when copying from the
DF.

Purpose

Set according to the preference of the user when installed to the color copiers.

Method

Press the start key. The screen for selecting an item is displayed.

Setting

1. Use the cursor up/down keys to select the ejection order.

Display Setting

TRAY(NORMAL) Opposite order ejection (during side ejection)
TRAY(MEMORY) Same order ejection using memory copy (during side ejection)
ALL(MEMORY) Same order ejection using memory copy

Initial setting: TRAY(NORMAL)

2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.

Completion

To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

U404 Adjusting margins for scanning an original from the DF

Adjustment

See page 1-6-12.

Description

1-4-7

3C0

1-5-1 Original misfeed detection

(1) Original misfeed indication

When an original jams, the machine immediately stops operation and a message is shown on the copier operation panel. The
DF original set indicator also flashes red.
To remove the jammed original, open the DF or the DF original reversing cover.
To reset the original misfeed detection, open and close the DF or DF original reversing cover to turn DF safety switch 1 or
2 off and on.

• Misfeed in DF
Jam code 70
Jam code 71
Jam code 72
Jam code 73
Jam code 74
Jam code 75
Jam code 76

In the case of color copiers

In the case of black and

white copiers

(2) Original misfeed detection conditions

OFSW

OSBSW

DFTSW

Figure 1-5-1

1-5-1

3C0

Section Jam code Description Conditions

Original
feed sec­tion

70

No original feed

In the primary original feed for the second original or after in
the 1 sided or 2 sided original mode, even if retry operation is
performed two times, primary original feed is not performed.

Original
conveying
section

71

72

73

An original jam in the
original feed section 1

An original jam in the
original feed section 2

An original jam in the
original conveying sec­tion

In the secondary original feed in the 1 sided original mode,
even if the specified number of pulses of the original feed
motor (OFM) passes after the original switchback switch
(OSBSW) turns on, the ON status of the DF timing switch
(DFTSW) is not detected.

In the secondary original feed in the 1 sided original mode,
even if the specified number of pulses of the original
conveying motor (OCM) passes after the DF timing switch
(DFTSW) turns on, the OFF status of the original feed switch
(OFSW) or the original switchback switch (OSBSW) is not
detected.
In the original switchback in the 2 sided original mode, even
if the specified number of pulses of the original feed motor
(OFM) passes after the original feed switch (OFSW) turns
on, the OFF status of the original feed switch (OFSW) is not
detected and the ON status of the original switchback switch
(OSBSW) is not detected.

In the secondary original feed in the 1 sided or 2 sided origi­nal mode, even if the specified number of pulses of the origi­nal conveying motor (OCM) passes after the DF timing
switch (DFTSW) turns on, the OFF status of the DF timing
switch (DFTSW) is not detected.
In the secondary original feed in the 1 sided or 2 sided origi­nal mode, before the specified number of pulses of the origi­nal conveying motor (OCM) passes after the DF timing
switch (DFTSW) turns on, the OFF status of the DF timing
switch (DFTSW) is detected.

Original
feed sec­tion

Original
switchback
section

74

75

76

An original jam remaining
after retries

An original jam in the
switchback section 1

An original jam in the
switchback section 2

In the secondary original feed in the 1 sided or 2 sided origi­nal mode, even if retry operation is performed five times,
secondary original feed is not performed.

In the original switchback in the 2 sided original mode, even
if the specified number of pulses of the original feed motor
(OFM) passes after the original switchback switch (OSBSW)
turns on, the OFF status of the original switchback switch
(OSBSW) is not detected.
In the secondary original feed in the 2 sided original mode,
even if the specified number of pulses of the original feed
motor (OFM) passes after the original conveying motor
(OCM) turns on, the ON status of the DF timing switch
(DFTSW) is not detected.
In the original switchback in the 2 sided original mode, even
if the specified number of pulses of the original feed motor
(OFM) passes after the original feed switch (OFSW) turns
on, the OFF status of the original feed switch (OFSW) is not
detected and the OFF status of the original switchback
switch (OSBSW) is detected.

While the back side of an original is being scanned in the 2
sided original mode, even if the specified number of pulses
of the original conveying motor (OCM) passes after the DF
timing switch (DFTSW) turns on, the ON status of the original
switchback switch (OSBSW) is not detected.

1-5-2

(3) Original misfeeds

Problem Causes/check procedures Corrective measures

(1)
An original jams
when the main
switch is turned on.

A piece of paper torn from
an original is caught
around the original feed
switch.

Remove any found.

3C0

(2)
An original jams
during continuous
copying of multiple
originals.

Defective original feed
switch.

A piece of paper torn from
an original is caught
around the original
switchback switch.

Defective original
switchback switch.

A piece of paper torn from
an original is caught
around the DF timing
switch.

Defective DF timing
switch.

Defective original feed
switch.

Check if the original feed
motor or the original con­veying motor malfunction.

Run maintenance item U244 and turn the original feed switch on
and off manually. Replace the original feed switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Remove any found.

Run maintenance item U244 and turn the original switchback
switch on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch
panel is not displayed in reverse.

Remove any found.

Run maintenance item U244 and turn the DF timing switch on
and off manually. Replace the DF timing switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Run maintenance item U244 and turn the original feed switch on
and off manually. Replace the original feed switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Run maintenance item U243 and select the original feed motor/
original conveying motor on the touch panel to be turned on and
off. Check the status and remedy if necessary.

(3)
An original jams is
indicated during
copying (no original
feed).
Jam code 70

(4)
An original jams
during copying (a
jam in the original
feed/conveying sec­tion).
Jam code 71/72/73

Defective original feed
switch.

Check if the original feed
motor malfunctions.

Defective DF timing
switch.

Defective original feed
switch.

Run maintenance item U244 and turn the original feed switch on
and off manually. Replace the original feed switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Run maintenance item U243 and select the original feed motor
on the touch panel to be turned on and off. Check the status and
remedy if necessary.

Run maintenance item U244 and turn the DF timing switch on
and off manually. Replace the DF timing switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Run maintenance item U244 and turn the original feed switch on
and off manually. Replace the original feed switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

1-5-3

3C0

Problem Causes/check procedures Corrective measures

(4)
An original jams
during copying (a
jam in the original
feed/conveying sec­tion).
Jam code 71/72/73

Defective original
switchback switch.

Check if the original feed
motor malfunctions.

Run maintenance item U244 and turn the original switchback
switch on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch
panel is not displayed in reverse.

Run maintenance item U243 and select the original feed motor
on the touch panel to be turned on and off. Check the status and
remedy if necessary.

(5)
An original jams
during copying (a
jam in the original
switchback section).
Jam code 75/76

Check if the DF original
feed pulley or the DF
separation pulley is de­formed.

Check if the DF registra­tion roller or the DF regis­tration pulley is deformed.

Check if the lower original
conveying roller or the
front scanning pulley is
deformed.

Check if the original con­veying motor malfunctions.

Defective original
switchback switch.

Defective DF timing
switch.

Check visually and replace the deformed pulley.

Check visually and replace the deformed pulley.

Check visually and replace the deformed pulley.

Run maintenance item U243 and select the original conveying
motor on the touch panel to be turned on and off. Check the sta­tus and remedy if necessary.

Run maintenance item U244 and turn the original switchback
switch on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch
panel is not displayed in reverse.

Run maintenance item U244 and turn the DF timing switch on
and off manually. Replace the DF timing switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

(6)
Original jams fre­quently.

Check if the original feed
motor malfunctions.

Check if the original con­veying motor malfunctions.

An original outside the
specifications is used.

The DF forwarding pulleys,
DF original feed pulley or
DF switchback pulley is
dirty with paper powder.

The DF original feed pulley
and the DF separation pul­ley do not contact cor­rectly.

Run maintenance item U243 and select the original feed motor
on the touch panel to be turned on and off. Check the status and
remedy if necessary.

Run maintenance item U243 and select the original conveying
motor on the touch panel to be turned on and off. Check the sta­tus and remedy if necessary.

Use only originals conforming to the specifications.

Clean with isopropyl alcohol.

Check and remedy.

1-5-4

1-5-2 Image formation problems

3C0

(1) There is a regular error

between the centers of
the original and copy
image.

See page 1-5-6

(2) There is a regular error

between the leading
edges of the original
and copy image.

See page 1-5-6

(3) There is a regular error

between the trailing
edges of the original
and copy image.

See page 1-5-6

1-5-5

3C0

(1) There is a regular

error between the
centers of the
original and copy
image.

Causes

1. Misadjusted DF center line.

(2) There is a regular

error between the
leading edges of
the original and
copy image.

Causes

1. Misadjusted DF center line.

Check procedures/corrective measures

Readjust the DF center line (see page 1-6-9).

Causes

1. Misadjusted DF original scanning start
position.

Causes

1. Misadjusted DF original scanning start
position.

(3) There is a regular

error between the
trailing edges of the

Causes

1. Misadjusted DF original scanning end
position.

original and copy
image.

Causes

1. Misadjusted DF original scanning end
position.

Check procedures/corrective measures

Readjust the DF original scanning start position (see page 1-6-10).

Check procedures/corrective measures

Readjust the DF original scanning end position (see page 1-6-11).

1-5-6

1-5-3 Electrical problems

Problem Causes Check procedures/corrective measures

(1)
The original feed
motor does not
operate.

Defective original feed mo­tor coil.

The connector terminals of
the original feed motor
make poor contact.

Check for continuity across the coil. If none, replace the original
feed motor.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

3C0

(2)
The original convey­ing motor does not
operate.

(3)
The original feed
solenoid does not
operate.

(4)
The switchback
feedshift solenoid
does not operate.

Defective DF driver PCB.

Defective original convey­ing motor coil.

The connector terminals of
the original conveying mo­tor make poor contact.

Defective DF driver PCB.

Defective original feed so­lenoid coil.

The connector terminals of
the original feed solenoid
make poor contact.

Defective DF driver PCB.

Defective switchback
feedshift solenoid coil.

The connector terminals of
the switchback feedshift
solenoid make poor con­tact.

Check for continuity across the original feed motor coil and con­nector terminals. If good, replace the DF driver PCB.

Check for continuity across the coil. If none, replace the original
conveying motor.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

Check for continuity across the original conveying motor coil and
connector terminals. If good, replace the DF driver PCB.

Check for continuity across the coil. If none, replace the original
feed solenoid.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

Check if the original feed solenoid operates when CN5-B13 or
CN5-B12 on the DF driver PCB is low. If it does, replace the DF
driver PCB.

Check for continuity across the coil. If none, replace the
switchback feedshift solenoid.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

(5)
The eject feedshift
solenoid does not
operate.

(6)
The switchback
pressure solenoid
does not operate.

Defective DF driver PCB.

Defective eject feedshift
solenoid coil.

The connector terminals of
the eject feedshift solenoid
make poor contact.

Defective DF driver PCB.

Defective switchback pres­sure solenoid coil.

The connector terminals of
the switchback pressure
solenoid make poor con­tact.

Defective DF driver PCB.

Check if the switchback feedshift solenoid operates when CN5­B8 on the DF driver PCB is low. If it does, replace the DF driver
PCB.

Check for continuity across the coil. If none, replace the eject
feedshift solenoid.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

Check if the eject feedshift solenoid operates when CN5-A7 on
the DF driver PCB is low. If it does, replace the DF driver PCB.

Check for continuity across the coil. If none, replace the
switchback pressure solenoid.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

Check if the switchback pressure solenoid operates when CN5­A2 or CN5-A3 on the DF driver PCB is low. If it does, replace the
DF driver PCB.

1-5-7

3C0

Problem Causes Check procedures/corrective measures

(7)
The original feed
clutch does not
operate.

Defective original feed
clutch coil.

The connector terminals of
the original feed clutch
make poor contact.

Check for continuity across the coil. If none, replace the original
feed clutch.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

(8)
A message indicat­ing cover open is
displayed when the
DF is closed cor­rectly.

(9)
An original jams
when the main
switch is turned on.

Defective DF driver PCB.

The connector terminals of
DF safety switch 1 make
poor contact.

Defective DF safety switch

1.

A piece of paper torn from
an original is caught
around the original feed
switch.

Defective original feed
switch.

A piece of paper torn from
an original is caught
around the original
switchback switch.

Defective original
switchback switch.

Check if the original feed clutch operates when CN5-A5 on the
DF driver PCB is low. If it does, replace the DF driver PCB.

Reinsert the connector. Also check for continuity within the con­nector cable. If none, remedy or replace the cable.

Check for continuity across the contacts of the switch. If none
when the switch is on, replace DF safety switch 1.

Remove any found.

Run maintenance item U244 and turn the original feed switch on
and off manually. Replace the original feed switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Remove any found.

Run maintenance item U244 and turn the original switchback
switch on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch
panel is not displayed in reverse.

A piece of paper torn from
an original is caught
around the DF timing
switch.

Defective DF timing
switch.

The surface facing the DF
timing switch is soiled.

Remove any found.

Run maintenance item U244 and turn the DF timing switch on
and off manually. Replace the DF timing switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.

Check if the projection at the center of the conveying cover that
is facing the DF timing switch is soiled with paper powder. If so,
clean it.

1-5-8

1-5-4 Mechanical problems

Problem Causes/check procedures Corrective measures

(1)
No primary original
feed.

The surfaces of the DF forwarding pulleys,
DF original feed pulley or DF separation pul­ley are dirty with paper powder.

3C0

Check and clean them with isopropyl alco­hol if they are dirty.

(2)
No secondary original
feed.

(3)
Originals jam.

Check if the DF original feed pulley or the
DF forwarding pulley is deformed.

Electrical problem with the following clutch
or solenoid:

• Original feed solenoid

• Original feed clutch

The DF registration pulley and the DF regis­tration roller do not contact each other cor­rectly.

Originals outside the specifications are used.

The surfaces of the DF forwarding pulleys,
DF original feed pulley or DF separation pul­ley are dirty with paper powder.

The DF original feed pulley and the DF
separation pulley do not contact each other
correctly.

If so, replace (see page 1-6-3).

See pages 1-5-7 and 8.

Check visually and remedy if necessary.

Use only originals conforming to the speci­fications.

Check and clean them with isopropyl alco­hol if they are dirty.

Check visually and remedy if necessary.

1-5-9

1-6-1 Precautions for assembly and disassembly

(1) Precautions

• Be sure to turn the main switch off and disconnect the power plug before starting disassembly.

• When handling PCBs, do not touch connectors with bare hands or damage the board.

• Do not touch any PCB containing ICs with bare hands or any object prone to static charge.

• Use the following testers when measuring voltages:
Hioki 3200
Sanwa MD-180C
Sanwa YX-360TR
Beckman TECH300
Beckman DM45
Beckman 330*
Beckman 3030*
Beckman DM850*
Fluke 8060A*
Arlec DMM1050
Arlec YF1030C
* Capable of measuring RMS values.

3C0

1-6-1

3C0

(2) Running a maintenance item

Start

Enter “10871087” using

the numeric keys.

Enter the maintenance item

number using the cursor up/down keys

The selected maintenance item is run.

Yes

Yes

or numeric keys.

Press the start key.

Press the stop/clear key.

Repeat the same

maintenance item?

No

Run another maintenance

item?

Maintenance mode is entered.

The maintenance item is
selected.

No

Enter “001” using the cursor

up/down keys or numeric keys

and press the start key.

End

Maintenance mode is exited.

1-6-2

1-6-2 Original feed section

(1) Detaching and refitting the DF forwarding pulley and DF feed pulley

Follow the procedure below to clean or replace the DF forwarding pulley or DF feed pulley.

Procedure

1. Open the DF original reversing cover.

2. Remove the two screws holding the upper

original feed cover and then the cover.

• Detaching the DF forwarding pulley

3. Remove the stop ring at the machine front

and then remove the bushing.

4. Pull out the forwarding shaft toward the rear

side of the machine and slide the bushing.

5. Remove the DF forwarding pulley from the

forwarding shaft.

• Detaching the DF feed pulley

6. Remove the stop ring at the machine front

and then remove the bushing.

7. Remove the stop ring at the machine rear.

8. Pull out the front original feed shaft toward

the rear side of the machine and slide the
bushing.

9. Remove the DF feed pulley from the front

original feed shaft.

10. Clean or replace the DF forwarding pulley

and the DF feed pulley.

11. Refit all the removed parts.
* When refitting the DF forwarding pulley and

DF feed pulley, ensure that the notches in the
pulleys are aligned with the projections on the
one-way clutches.

Front original
feed shaft

One-way clutch

Bushing

Stop ring

3C0

DF feed pulley

DF forwarding pulley

Stop ring

Stop ring

bushing

bushing

Machine
front

DF forwarding belt

One-way clutch

Bushing

forwarding
shaft

Machine
rear

Figure 1-6-1

1-6-3

3C0

(2) Detaching and refitting the DF separation pulley

Follow the procedure below to clean or replace the DF separation pulley.

Procedure

1. Open the DF original reversing cover.

2. Remove the DF front and rear covers.

3. Remove the two screws holding the upper
original feed cover and then the cover.

Screws

Upper original
feed cover

4. Remove the four connectors and then
remove the wires from the two wire clamps.

Figure 1-6-2

Connectors

Wire clamps

1-6-4

Connectors

Figure 1-6-3

5. Remove the two screws holding the solenoid
bracket and then the bracket.

6. Remove the screw and then remove the feed
guide pin.

Screw

3C0

Feed guide pin

7. Remove the E-ring and then the original feed
clutch.

8. Remove the E-ring and then remove the
bushing.

Screws

E-ring

Solenoid bracket

Figure 1-6-4

E-ring

Original feed clutch

Figure 1-6-5

Bushing

1-6-5

3C0

g

9. Open the registration guide and remove the
guide.

10. Remove the two screws holding the upper
feed guide plate and then the plate.

Registration guide

Upper original feed
guide plate

Screw

Screw

11. Remove the two screws holding the original
feed lift and then the lift.

12. Remove the screw holding the separation
guide and then the guide.

Figure 1-6-6

Screw

Separation guide

Screw

1-6-6

Screw

Ori

inal feed lift

Figure 1-6-7

13. Remove the separation shaft from the
separation pulley arms.

14. Remove the stopper and torque limitter from
the separation shaft and then remove the DF
separation pulley.

15. Clean or replace the DF separation pulley.

16. Refit all the removed parts.

3C0

Torque limitter

DF separation
pulley

Stopper

Separation shaft

Separation pulley
arms

Figure 1-6-8

1-6-7

3C0

(3) Adjusting the DF magnification

Adjust magnification in the auxiliary scanning direction if magnification is incorrect when the DF is used.

U053

(See the service manual

of the copier.)

U065(main scanning

direction)

(See the service manual

of the copier.)

U065(auxiliary scanning

direction)

(See the service manual

of the copier.)

U070

Caution

Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure

Main scanning

direction

Start

Auxiliary

scanning

Enter maintenance mode.

Enter “070” using the numeric keys.

Press the start key.

direction

Original

Copy

example 1

Figure 1-6-9

Copy

example 2

Press the interrupt key.

Place an original on the DF

and make a test copy.

Is the image correct?

Yes

Press the stop/clear key to

exit maintenance mode.

End

Press the start key.

The new setting
is stored.

For copy example 1, increase
the value using the cursor up key
(cursor right key).

No

For copy example 2, decrease
the value using the cursor down key
(cursor left key).
* ( ) indicates the case of color copiers.

Setting range: –25 – +25 (in the case of
black and white copiers)
–2.5 – +2.5 (in the case of
color copiers)
Initial setting: 0
Changing the value by 1 changes
the magnification by 0.1%.
Increasing the value makes
the image longer, and decreasing it
make the image shorter.

1-6-8

3C0

(4) Adjusting the DF center line

Perform the following adjustment if there is a regular error between the centers of the original and the copy image when
the DF is used.

U034

(See the service manual

of the copier.)

(See the service manual

U067

U072

of the copier.)

Caution

Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure

Reference

Start

Enter maintenance mode.

Copy

example 2

Enter “072” using the numeric keys.

Original Copy

example 1

Figure 1-6-10

Press the start key.

Select the item to be adjusted.

Press the interrupt key.

Place an original on the DF

and make a test copy.

Is the image correct?

Yes

Press the stop/clear key to

exit maintenance mode.

End

Press the start key.

The new setting
is stored.

For copy example 1, increase
the value using the cursor up key
(cursor right key).

No

For copy example 2, decrease
the value using the cursor down key
(cursor left key).
* ( ) indicates the case of color copiers.

Setting range: –39 – +39 (in the case of
black and white copiers)
–20 – +20 (in the case of
color copiers)
Initial setting: 0
Changing the value by 1 moves
the center line by 0.17 mm.

1-6-9

3C0

(5) Adjusting the scanning start position

Perform the following adjustment if there is a regular error between the leading or trailing edges of the original and the
copy image.

U034

(See the service manual

of the copier.)

(See the service manual

U066

U071

of the copier.)

Caution

Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

(5-1) Adjusting the DF leading edge registration

Procedure

Start

Enter maintenance mode.

Enter “071” using the numeric keys.

Original

Copy

example 1

Copy

example 2

Figure 1-6-11

Press the start key.

Select “LEAD EDGE ADJ”.

Press the interrupt key.

Place an original on the DF

and make a test copy.

Is the image correct?

Yes

Press the stop/clear key to

exit maintenance mode.

End

Press the start key.

The new setting
is stored.

For copy example 1, increase
the value using the cursor up key
(cursor right key).

No

For copy example 2, decrease
the value using the cursor down key
(cursor left key).
* ( ) indicates the case of color copiers.

Setting range: –32 – +32
Initial setting: 8 (in the case of black and
white copiers)
Initial setting: 0 (in the case of color copiers)
Changing the value by 1 moves
the leading edge by 0.17 mm.
Increasing backward and decreasing it moves
the image forward.

1-6-10

(5-2) Adjusting the DF trailing edge registration

Procedure

Start

Enter maintenance mode.

3C0

Enter “071” using the numeric keys.

Press the start key.

Select “TRAIL EDGE ADJ”.

Press the interrupt key.

Place an original on the DF

and make a test copy.

Is the image correct?

Yes

Press the stop/clear key to

exit maintenance mode.

End

Original Copy

example 1

Figure 1-6-12

Press the start key.

The new setting
is stored.

For copy example 1, increase
the value using the cursor up key
(cursor right key).

No

For copy example 2, decrease
the value using the cursor down key
(cursor left key).
* ( ) indicates the case of color copiers.

Setting range: –32 – +32
initial setting: 0
Changing the value by 1 moves
the trailing edge by 0.17 mm.
Increasing backward and decreasing it moves
the image forward.

Copy

example 2

1-6-11

3C0

(6) Adjusting the margins for scanning the original from the DF

Perform the following adjustment if margins are not correct.

(See the service manual

U402

of the copier.)

(See the service manual

U403

U404

of the copier.)

Caution

Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure

DF leading edge margin (3 ± 1.5 mm [2 ± 1.0 mm])

Ejection direction

Start

Enter maintenance mode.

(reference)

* [ ] indicates the case of
color copiers.

DF left margin

(2 ± 1.0 mm)

DF right margin
(2 ± 1.0 mm)

DF trailing edge margin
(2 ± 1.0 mm)

Figure 1-6-13

Enter “404” using the numeric keys.

Press the start key.

Select the item to be adjusted.

Press the interrupt key.

Place an original on the DF

and make a test copy.

Are the margins correct?

Yes

Yes

Proceed to another mode?

No

Press the stop/clear key to

exit maintenance mode.

A MARGIN (LEFT/mm): DF left margin
B MARGIN (TOP/mm): DF leading edge margin
C MARGIN (RIGHT/mm): DF right margin
D MARGIN (BOTTOM/mm): DF trailing edge margin
* ( ) indicates the case of color copiers.

Press the start key.

The new setting
is stored.

Change the setting.

Increasing the value using the cursor

No

up key (cursor right key) makes the
margin wider.
Decreasing the value using the
cursor down key (cursor left key)
makes the margin narrower.
* ( ) indicates the case of color
copiers.

Setting range (initial setting)

DF left margin: 0 – +10.0 (2.0 [2.0])
DF leading edge margin: 0 – +10.0 (3.0 [2.0])
DF right margin: 0 – +10.0 (2.0 [2.0])

DF trailing edge margin: 0 – +10.0 (2.0 [2.0])
Changing the value by one moves
the margin by 0.5 mm [0.1 mm] for all.
* [ ] indicates the case of color copiers.

1-6-12

End

3C0

2-1-1 Original feed section

The original feed section consists of the parts shown in Figure. An original placed on the original table is conveyed to the
original switchback section or the original conveying section.

Figure 2-1-1 Original feed section

1 Original table
2 DF forwarding pulleys
3 DF original feed pulley
4 DF separation pulley
5 DF original feed upper guide
6 DF original feed lower guide
7 Original stopper
8 DF registration pulley

OFSW

9 DF registration roller
0 DF registration guide
! Original set switch (OSSW)
@ Original feed switch (OFSW)
# Original feed clutch (OFCL)
$ Original feed solenoid (OFSOL)
% Original feed lift

OFCL

OSSW

OFM

OFSOL

CN6-B5

CN5-B12 -

CN5-B13

CN5-A5

CN6-B2

DFDPCB

CN5-B1 -

Figure 2-1-2 Original feed section block diagram

CN5-B6

2-1-1

3C0

(1) Original feed timing

OFSOL A

OFSOL R

Fwd. rotation

Rev. rotation

OSBSW

DFTSW

10 ms 150 ms

OFCL

OffOFM

OFSW

OCM

200 ms

298 P* 20 ms

150 ms

*Burst of OFM pulses

Timing chart 2-1-1 Original feed (in simple-sided original mode)

a The OFSOL A signal goes high for 10 ms and then turns off for 200 ms. It goes high again for 150 ms and the original

feed solenoid (OFSOL) turns on, raising the original feed lift to convey the original forward.

b 298 OFM pulses after the leading edge of the original turns the original feed switch (OFSW) on, the original feed

clutch (OFCL) and original feed motor (OFM) turn off. 20 ms later, the rotation of the motor switches to the reverse
direction and secondary original feed is performed by rotation of the DF registration roller.

c Simultaneously as the trailing edge of the original turns the original feed switch (OFSW) off, the original feed motor

(OFM) turns off.

d After ejection of the original, as the original conveying motor (OCM) turns off, the OFSOL R signal turns on for 150

ms and the original feed solenoid (OFSOL) turns off.

2-1-2

2-1-2 Original switchback section

The original switchback section consists of the parts shown in Figure. The original from the original feed section or
original conveying section is reversed and conveyed to the original conveying section.

Figure 2-1-3 Original switchback section

1 Switchback pulley
2 Switchback roller
3 Switchback feedshift guide
4 Left switchback guide
5 Switchback guide
6 Original switchback switch (OSBSW)
7 Switchback feedshift solenoid (SBFSSOL)
8 Switchback pressure solenoid (SBPSOL)

3C0

SBPSOL SBFSSOL

OSBSW

CN5-A2 -

CN5-A3

CN6-A5

CN5-B8

DFDPCB

Figure 2-1-4 Original switchback section block diagram

2-1-3

3C0

(1) Operation of original switchback

In the double-sided original mode, the switchback feedshift solenoid (SBFSSOL) turns on, changing the position of the
switchback feedshift guide. This switches the path of the original to the original switchback section to where the original
is fed.
The switchback feedshift solenoid (SBFSSOL) then turns off, allowing the switchback feedshift guide to return to the
original position by which the path of the original is switched back to the original conveying section. The now reversed
original is carried to the original conveying section and the switchback pressure solenoid (SBPSOL) turns off, releasing
the switchback pulley to prevent an original jam in the original switchback section.

Switchback
pulley

Switchback feedshift guide

Figure 2-1-5

2-1-4

3C0

2-1-3 Original conveying section

The original conveying section consists of the parts shown in Figure. Synchronized with the copier scanning operation,
the original is conveyed across the slit glass and ejected when scanning is complete.
In the double-sided original mode, the eject feedshift solenoid (EFSSOL) turns on, moving the eject feedshift guide to
switch the path of the original. When the scanning of the first face (reverse face) of the original is complete, the original is
conveyed to the original switchback section again.

Figure 2-1-6 Original conveying section

1 Upper original conveying pulley
2 Upper original conveying roller
3 Lower original conveying roller
4 Front scanning pulley
5 Middle original conveying roller
6 Middle original conveying pulley
7 Eject pulley
8 Eject roller

OCM

DFTSW

9 Original conveying guide
0 Eject feedshift guide
! Upper eject guide
@ Lower eject guide
# Slit glass (copier)
$ DF timing switch (DFTSW)
% Eject feedshift solenoid

(EFSSOL)

EFSSOL

CN5-A13

CN5-A8 -

CN6-B14

DFDPCB

CN5-A7

Figure 2-1-7 Original conveying section block diagram

2-1-5

3C0

(1) Original switchback/conveying timing

Fwd. rotation

Rev. rotation

OffOFM

OFSW

SBFSSOL

SBPSOL A

SBPSOL R

OSBSW

OCM

EFSSOL

DFTSW

298 P

100 ms

*1

20 ms

*1

135 P

Scanning speed

30 ms

*2

78 P

Scanning speed

*1 Burst of OFM pulses
*2 Burst of OCM pulses

Timing chart 2-1-2 Reversing the first face of the original

a During primary original feed, when the original feed switch (OFSW) turns on, the switchback feedshift solenoid

(SBFSSOL) also turns on, changing the position of the switchback feedshift guide. This switches the path of the
original to the original switchback section.

b 298 OFM pulses plus 20 ms after the original feed switch (OFSW) turns on, the rotation of the original feed motor

(OFM) switches to the reverse direction and the original is conveyed to the switchback section by the rotation of the
switchback roller.

c Simultaneously as the original feed switch (OFSW) turns off, the switchback pressure solenoid (SBPSOL) turns on to

operate the switchback pulley.

d When the trailing edge of the original turns the original switchback switch (OSBSW) off, the switchback feedshift

solenoid (SBFSSOL) turns off, the switchback feedshift guide returns to the original position.

e 135 OFM pulses after the original switchback switch (OSBSW) turns off, the original feed motor (OFM) turns off. 100

ms later, the original feed motor (OFM) rotates forward, switching the rotational direction of the switchback roller. The
original in the original switchback section is then reversed and conveyed to the original conveying section.

f Simultaneously as the original feed motor (OFM) starts rotating forward, the original conveying motor (OCM) turns on

to convey the original onto the slit glass. The eject feedshift solenoid (EFSSOL) simultaneously turns on, changing
the position of the eject feedshift guide. This switches the path of the original to the original switchback section.

g When the original is conveyed onto the slit glass, the DF timing switch (DFTSW) turns on. 78 OCM pulses later, the

switchback pressure solenoid (SBPSOL).

h 30 ms after the switchback pressure solenoid (SBPSOL) turns off, the original feed motor (OFM) turns off.

2-1-6

Fwd. rotation

OFM

Rev. rotation

OFSW

SBFSSOL

135 P

100 ms

*1

Scanning request signal: On

Scanning speed

*1

327 P

100 ms

3C0

SBPSOL

SBPSOL

OSBSW

OCM

EFSSOL

DFTSW

362 P

30 ms

*1

*2

78 P

Scanning speed

30 ms

2252 P*2 + 30 ms

*1 Burst of OFM pulses
*2 Burst of OCM pulses

Timing chart 2-1-3 Reversing of the second face of the original and ejection

a 362 OFM pulses after the scanning of the first face (reverse face) of the original completes and the DF timing switch

(DFTSW) turns off, the switchback pressure solenoid (SBPSOL) turns on, operating the switchback pulley.

b When the trailing edge of the original turns the original switchback switch (OSBSW) off, the eject feedshift solenoid

(EFSSOL) turns off and the eject feedshift guide returns to the original position, switching the path of the original to
the eject section. Simultaneously, the switchback feedshift solenoid (SBFSSOL) turns off and the switchback
feedshift guide returns to the original position.

c 30 ms after the original switchback switch (OSBSW) turns off, the original conveying motor (OCM) turns off.
d 135 OFM pulses after the original switchback switch (OSBSW) turns off, the original feed motor (OFM) turns off.
e 100 ms after the original feed motor (OFM) turns off, the motor starts rotating forward, switching the rotational

direction of the switchback roller. The original in the original switchback section is then reversed and conveyed to the
original conveying section.

f 327 OFM pulses plus 100 ms after the original feed motor (OFM) turns off, the motor starts rotating forward again and

the original conveying motor (OCM) turns on simultaneously, conveying the original onto the slit glass.

g 78 OFM pulses after the original is conveyed onto the slit glass and the DF timing switch (DFTSW) turns on, the

switchback pressure solenoid (SBPSOL) turns off.

h 30 ms after the switchback pressure solenoid (SBPSOL) turns off, the original feed motor (OFM) turns off.
i When the scanning request signal turns on, scanning of the second face (front face) of the original starts.
j 2252 OCM pulses plus 30 ms after scanning of the second face (front face) of the original completes and the DF

timing switch (DFTSW) turns off, the original conveying motor (OCM) turns off, completing the ejection of the original.

2-1-7

2-2-1 Electrical parts layout

(1) PCBs

2

1

Machine front Machine inside Machine rear

Figure 2-2-1 PCBs

1. DF driver PCB (DFDPCB) ........................... Controls electrical components of the DF.

2. Original set LED PCB (OSLEDPCB) ........... Indicates presence of originals on the DF or an original jam.

3C0

2-2-1

3C0

(2) Switches and sensors

2

3

4

8

5

6

7

1

Machine front

Machine inside

Machine rear

Figure 2-2-2 Switches and sensors

1. DF safety switch 1 (DFSSW1) ..................... Breaks the safety circuit when the DF is opened; resets original misfeed

detection.

2. DF safety switch 2 (DFSSW2) ..................... Breaks the safety circuit when the DF original switchback cover is

opened; resets original misfeed detection.

3. Original set switch (OSSW) ......................... Detects the presence of an original.

4. Original feed switch (OFSW) ....................... Detects primary original feed end timing.

5. Original switchback switch (OSBSW) .......... Detects an original misfeed in the original switchback section.

6. DF timing switch (DFTSW) .......................... Detects the original scanning timing.

7. Original size length switch (OSLSW) ........... Detects the length of the original.

8. Original size width switch (OSWSW) ........... Detects the width of the original.

2-2-2

(3) Motors

3C0

1

2

Machine front

Machine inside

Machine rear

Figure 2-2-3 Motors

1. Original feed motor (OFM) ........................... Drives the original feed and switchback sections.

2. Original conveying motor (OCM) ................. Drives the original conveying section.

2-2-3

3C0

(4) Clutches and solenoids

4

5

2

3

1

Machine front Machine inside

Machine rear

Figure 2-2-4 Clutches and solenoids

1. Original feed solenoid (OFSOL) .................. Operates the paper feed lift.

2. Switchback feedshift solenoid

(SBFSSOL) .................................................. Operates the switchback feedshift guide.

3. Eject feedshift solenoid (EFSSOL) .............. Operates the eject feedshift guide.

4. Switchback pressure solenoid (SBPSOL) .... Operates the switchback pulley.

5. Original feed clutch (OFCL) ......................... Controls the drive of the DF original feed pulley.

2-2-4

2-3-1 DF driver PCB

Copier

24V

5V

DFSSW2 OPEN

DFSSW1 OPEN

5 V DC

Motor
driver

IC

Motor
driver

IC

DFDPCB

24 V DC

DFSSW2

24V

24V (VEN)

24V
OCM A
OCM B
OCM A_
OCM B_

24V
OFM A
OFM B
OFM A_
OFM B_

3C0

DFSSW1

2

1

3

1

OCM

OFM

2

3

Clutch,

Driver

OSWSW

Driver

Driver

Solenoids

Switches

LED

Figure 2-3-1 DF driver PCB block diagram

The DF driver PCB (DFDPCB) consists of the motor driver ICs and other driver circuits. The motor driver ICs are controlled
by various motor control signals from the copier to drive the original feed motor (OFM) and the original conveying motor
(OCM). The other driver circuits drive the clutch, solenoids, and LED based on the control signals from the copier and
function as buffers that output the signals detected by the switches to the copier. The copier supplies DC 24 V and DC 5 V
power sources. The DC 24 V is the power source for driving the motors, clutch, and solenoids. The DC 5 V is the power
source for driving the switches and LED. The power supply line of the DC 24 V is connected through the DF safety switch
1 (DFSSW1) and the DF safety switch 2 (DFSSW2) to each load to provide a safety circuit that interrupts power supply to
each load when the DF is opened or closed or the DF original reversing cover is opened or closed.

2-3-1

3C0

B-1

A-13

B-1

A-15

CN5

22
21

B-13

A-1

CN2

CN6

B-15

A-1

CN3

2

14

1

13

Figure 2-3-2 DF driver PCB silk-screen diagram

CN4

41

CN1

91

10 2

2
1

2-3-2

Connector Pin No. Signal I/O Voltage Description

CN1

Connected
to the
copier.

1 24 V I 24 V DC 24 V DC supply
2 24 V I 24 V DC 24 V DC supply
3 PG - Ground Ground for 24 V DC supply
4 PG - Ground Ground for 24 V DC supply
5 NC - - Not used
6 NC - - Not used
7 5V I 5 V DC 5 V DC supply
8 5V I 5 V DC 5 V DC supply
9 SG - Ground Ground for 5 V DC supply

10 SG - Ground Ground for 5 V DC supply

3C0

CN2

Connected
to the
copier.

CN3

Connected
to the
copier.

1 OCM M1 I 0/5 V DC (pulse) OCM control signal (M1)
2 OCM M2 I 0/5 V DC (pulse) OCM control signal (M2)
3 OCM M3 I 0/5 V DC (pulse) OCM control signal (M3)
4 NC - - Not used
5 NC - - Not used
6 OCM Vref I Analog OCM current control voltage
7 OCM CWB I 0/5 V DC OCM rotation direction switching signal
8 OCM CLK I 0/5 V DC (pulse) OCM drive clock signal
9 OCM RET I 0/5 V DC OCM control signal

10 OCM ENABLE I 0/5 V DC OCM enable signal

11 OFM CWB I 0/5 V DC OFM rotation direction switching signal
12 OFM CLK I 0/5 V DC (pulse) OFM drive clock signal
13 OFM RET I 0/5 V DC OFM control signal
14 OFM ENABLE I 0/5 V DC OFM enable signal
15 OFSOL(ACT) I 0/24 V DC OFSOL: actuate
16 OFSOL(RET) I 0/24 V DC OFSOL: return
17 SBFSSOL I 0/24 V DC SBFSSOL: On/Off

RESERVE(SOL)

18
19 EFSSOL I 0/24 V DC EFSSOL: On/Off
20 OFCL I 0/24 V DC OFCL: On/Off
21 SBPSOL(ACT) I 0/24 V DC SBPSOL: actuate
22 SBPSOL(RET) I 0/24 V DC SBPSOL: return

1 OSSW O 0/5 V DC OSSW: On/Off
2 OFSW O 0/5 V DC OFSW: On/Off
3 OSBSW O 0/5 V DC OSBSW: On/Off

RESERVE (SW)

4
5 OSLSW O 0/5 V DC OSLSW: On/Off
6 DFSSW1 O 0/5 V DC DFSSW1: On/Off
7 DFSSW2 O 0/5 V DC DFSSW2: On/Off
8 OSWSW O Analog OSWSW detection voltage

OSLED(GREEN)

9

10 OSLED(RED) I 0/5 V DC OSLED (red): On/Off

11 DF SHORT O 0/5 V DC DF installed/not installed detection signal
12 RESERVE(SW) - - Not used
13 DFTSW O 0/5 V DC DFTSW: On/Off
14 NC - - Not used

- - Not used

- - Not used

I 0/5 V DC OSLED (green): On/Off

CN4

Connected
to the
copier.

1 24 V(VEN) - 0/24 V DC 24 V DC supply via DFSSW1 and DFSSW2
2 24 V - 24 V DC 24 V DC supply

DFSSW2 OPEN

3
4

DFSSW1 OPEN

- 0/24 V DC DFSSW2: On/Off

- 0/24 V DC DFSSW1: On/Off

2-3-3

3C0

Connector Pin No. Signal I/O Voltage Description

CN5

Connected
to the
switchback
pressure
solenoid,
original
feed clutch,
eject
feedshift
solenoid,
original
conveying
motor,
original
feed motor,
switchback
feedshift
solenoid,
original
feed
solenoid.

A-1 24 V O 24 V DC
A-2 SBPSOL(ACT) O 0/24 V DC SBPSOL: actuate
A-3 SBPSOL(RET) O 0/24 V DC SBPSOL: return
A-4 24 V O 24 V DC
A-5 OFCL O 0/24 V DC OFCL: On/Off
A-6 24 V O 24 V DC
A-7 EFSSOL O 0/24 V DC EFSSOL: On/Off
A-8 OCM ACOM O 24 V

24 V(VEN)

A-9 OCM BCOM O 24 V

24 V(VEN)

A-10 OCM A O 0/24 V DC (pulse) OCM motor coil energization pulse (A)

A-11 OCM B O 0/24 V DC (pulse) OCM motor coil energization pulse (B)
A-12 OCM A_ O 0/24 V DC (pulse) OCM motor coil energization pulse (A_)
A-13 OCM B_ O 0/24 V DC (pulse) OCM motor coil energization pulse (B_)

B-1 OFM ACOM O 24 V

24 V(VEN)

B-2 OFM BCOM O 24 V

24 V(VEN)
B-3 OFM A O 0/24 V DC (pulse) OFM motor coil energization pulse (A)
B-4 OFM B O 0/24 V DC (pulse) OFM motor coil energization pulse (B)
B-5 OFM A_ O 0/24 V DC (pulse) OFM motor coil energization pulse (A_)
B-6 OFM B_ O 0/24 V DC (pulse) OFM motor coil energization pulse (B_)
B-7 24 V - 24 V DC
B-8 SBFSSOL O 0/24 V DC SBFSSOL: On/Off
B-9 24 V - - Not used

B-10

B-11 24 V - 24 V DC
B-12 OFSOL(ACT) O 0/24 V DC OFSOL: actuate
B-13 OFSOL(RET) O 0/24 V DC OFSOL: return

RESERVE(SOL)

- - Not used

24 V DC supply for SBPSOL (via DFSSW1 and DFSSW2)

24 V DC supply for OFCL (via DFSSW1 and DFSSW2)

24 V DC supply for EFSSOL (via DFSSW1 and DFSSW2)

24 V DC supply for OCM (via DFSSW1 and DFSSW2)

24 V DC supply for OCM (via DFSSW1 and DFSSW2)

24 V DC supply for OFM (via DFSSW1 and DFSSW2)

24 V DC supply for OFM (via DFSSW1 and DFSSW2)

24 V DC supply for SBFSSOL (via DFSSW1 and DFSSW2)

24 V DC supply for SBPSOL (via DFSSW1 and DFSSW2)

CN6

Connected
to the
original
switchback
switch,
original size
length
switch,
original size
width
switch,
original set
switch,
original
feed switch,
original set
LED PCB.

A-1 - - - Not used
A-2 - - - Not used
A-3 - - - Not used
A-4 SG - Ground Ground for 5 V DC supply
A-5 OSBSW I 0/5 V DC OSBSW: On/Off
A-6 5V O 5 V DC 5 V DC supply for OSBSW
A-7 SG - Ground Ground
A-8 OSLSW I 0/5 V DC OSLSW: On/Off
A-9 5V O 5 V DC 5 V DC supply for OSLSW

A-10 SG - Ground Ground

A-11 OSWSW I Analog OSWSW detection voltage
A-12 5V O 5 V DC 5 V DC supply for OSWSW
A-13 SG - - Not used
A-14
A-15 5V - - Not used

B-1 5V O 5 V DC 5 V DC supply for OSSW
B-2 OSSW I 0/5 V DC OSSW: On/Off
B-3 SG - Ground Ground
B-4 5V O 5 V DC 5 V DC supply for OFSW
B-5 OFSW I 0/5 V DC OFSW: On/Off
B-6 SG - Ground Ground
B-7 OSLED(RED) O 0/5 V DC OSLED (red): On/Off
B-8 SG - Ground Ground
B-9 OSLED(GN) O 0/5 V DC OSLED (green): On/Off

B-10 5V - - Not used

B-11 DOCSW - - Not used
B-12 SG - - Not used
B-13 5V O 5 V DC 5 V DC supply for DFTSW
B-14 DFTSW I 0/5 V DC DFTSW: On/Off
B-15 SG - Ground Ground

RESERVE(SW)

- - Not used

2-3-4

3C0

Copier signal wait condition

298 P

5099 P

Secondary original feed start

Primary original feed endDF start

OFM CN5-B3, B4, B5, B6

OCM

CN5-A10, A11, A12, A13

OFSW CN6-B5

OSBSW CN6-A5

OFSOL A

DFTSW

CN5-B12

OFSOL R CN5-B13

OFCL CN5-A5

CN6-B14

" original in single-sided original mode

2

/

1

××

××

× 8

Timing chart No. 1 Original feed operation 1: Feeding an A4/11"

2-4-1

3C0

Secondary original

feed start

Start of primary feed

for next original

Primary original

feed end

DF start

OFM

OFSOL A CN5-B12

OFSOL R CN5-B3

OFCL CN5-A5

DFTSW

Copier signal wait condition

298 P

298 P

5099 P

OSBSW

CN5-B3, B4, B5, B6

OCM

CN5-A10, A11, A12, A13

OFSW CN6-B5

CN6-A5

CN6-B14

" originals successively in single-sided original mode

2

/

1

××

××

× 8

2-4-2

Timing chart No. 2 Original feed operation 2: Feeding two A4/11"

Secondary original

feed start (reverse face)

Secondary original

feed start (reverse

face)

Secondary original

feed start (front face)

Secondary original feed start

(front face)

Switchback

operation start

Switchback

operation start

Switchback

operation end

Switchback

operation end

Switchback

operation end

Switchback

operation end

Start of primary feed

for next original

Primary original

feed end

Primary original

feed end

DF start

Copier signal

wait condition

OFM

100 ms

135 P

135 P

135 P

135 P

OFSOL A CN5-B12

OFSOL R CN5-B13

OFCL CN5-A5

CN5-B3, B4, B5, B6

OCM

CN5-A10, A11, A12, A13

OFSW CN6-B5

OSBSW CN6-A5

DFTSW CN6-B14

SBFSSOL CN5-B8

EFSSOL CN5-A7

SBPSOL A CN5-A2

SBPSOL R CN5-A3

3C0

××

××

× 11" originals successively in double-sided original mode

"

2

/

1

Timing chart No. 3 Original feed operation 3: Feeding two A4R/8

2-4-3

3C0

Maintenance parts list

Maintenance part name

Name used in service manual Name used in parts list

DF forwarding pulley PULLEY,LEADING FEED 3BC07010 4 5
DF feed pulley PULLEY,SEPARATION 3BC07020 4 6
DF separation pulley PULLEY,SEPARATION 3BC07020 4 27
DF registration roller ROLLER,REGISTRATION 3BC08050 6 56
Front reading pulley FRONT PULLEY,READING 3AL08480 6 7
DF registration pulley PULLEY B,REGISTRATION 3BC08220 5 12
Original feed switch SWITCH L,FEED 63227150 4 17

Lower original conveying roller LOWER ROLLER,CONVEYING 3AL08112 6 32
Upper original conveying roller UPPER ROLLER,CONVEYING 3AL08161 6 30
Upper original conveying pulley UPPER PULLEY,CONVEYING 3AL08140 1 5
Original conveying guide GUIDE,CONVEYING 3AL08033 6 1
Original conveying pulley cover COVER,CONVEYING PULLEY 3AL08302 6 4
Middle original conveying roller INNER ROLLER,CONVEYING 3BC08150 6 19
Middle original conveying pulley INNER PULLEY,CONVEYING 3AL08100 6 52
Eject pulley PULLEY,EJECT 3AL08170 5 11

Switchback roller ROLLER,LOOP 3AL10020 5 6
Eject pulley PULLEY,EJECT 3AL08170 5 20
Eject roller ROLLER,EJECT 3AL08130 6 39

Original size length switch filter FILTER CF SENSOR 78706241 3 16

Slit glass* CONTACT GLASS,ADF 2AV12250 9 [11] 19 [61]
Covers Covers - - -

Original holder mat MAT,ORIGINAL HOLDER 3AL04060 1 16
Original holder sheet SHEET,ORIGINAL HOLDER 3AL08401 6 10
Original size indicator sponge* SPONGE,ORIGINAL SIZE INDICATOR 35912531 9 [11] 52 [63]

Part No. Fig. No. Ref. No.

* Equipped with the copier. [ ] indicates the case of color copiers.

2-4-4

Periodic maintenance procedures

3C0

Section

Test copy and Perform at the maximum Test copy Every service
test print copy size

Section

Original feed DF forwarding pulley Replace or clean Every 100,000 counts Clean with alcohol when visiting 1-6-3
section the user.

Section

Original Lower original conveying Clean Every service Clean with alcohol or a dry cloth.
conveying roller
section Upper original conveying Clean Every service Clean with alcohol or a dry cloth.

Maintenance
part/location

Maintenance
part/location

DF feed pulley Replace or clean Every 100,000 counts Clean with alcohol when visiting 1-6-3

DF separation pulley Replace or clean Every 100,000 counts Clean with alcohol when visiting 1-6-4

DF registration roller Clean Every service Clean with alcohol or a dry cloth.

Front reading pulley Clean Every service Clean with alcohol or a dry cloth.

DF registration pulley Check or clean Every service Clean with alcohol or a dry cloth

Original feed switch Check or clean Every service Clean with airbrush or a dry cloth.

Maintenance
part/location

roller

Upper original conveying Check or clean Every service Clean with alcohol or a dry cloth
pulley if it is dirty.

Original conveying guide Clean Every service Clean with alcohol or a dry cloth.

Original conveying pulley Clean Every service Clean the opposite side of the DF
cover timing switch with alcohol or a dry

Middle original conveying Clean Every 400,000 counts Clean with alcohol (Remove the
roller front, rear and right covers and

Middle original conveying Clean Every 400,000 counts Clean with alcohol (Remove the
pulley front, rear and right covers and

Eject pulley Check or clean Every service Clean with alcohol or a dry cloth

Method Maintenance cycle Points and cautions Page

Method Maintenance cycle Points and cautions Page

the user.

the user.

if it is dirty.

Method Maintenance cycle Points and cautions Page

cloth.

original conveying pulley mount
plate).

original conveying pulley mount
plate).

if it is dirty.

Section

Original Original size length switch Clean Every service Clean with alcohol.
Table Filter

Maintenance
part/location

Method Maintenance cycle Points and cautions Page

2-4-5

3C0

Section

Covers Covers Clean Every service Clean with alcohol.

Section

Other Original holder mat Clean Every service Clean with alcohol or a dry cloth.

Maintenance
part/location

Slit glass* Clean Every service Clean with alcohol or a dry cloth.

Maintenance
part/location

Original holder sheet Clean Every service Clean with alcohol or a dry cloth.

Original size indicator Clean Every service Clean with alcohol or a dry cloth.
sponge*

Method Maintenance cycle Points and cautions Page

Method Maintenance cycle Points and cautions Page

* Equipped with the copier.

2-4-6

CN5(B-1)

CN5(B-2)

CN5(B-3)

CN5(B-4)

CN5(B-5)

CN5(B-6)

CN5(A-8)

CN5(A-9)

CN5(A-10)

CN5(A-11)

CN5(A-12)

CN5(A-13)

24V

SBPSOL(ACT)

SBPSOL(RET)

24V

OFCL

24V

EFSSOL

SBFSSOL
24V

OFSOL (RET)
OFSOL (ACT)
24V

OCM A

OCM B

OCM A_

OCM B_

OCM ACOM 24V(VEN)

OCM BCOM 24V(VEN)

OFM B_
OFM A_
OFM B
OFM A
OFM BCOM 24V(VEN)
OFM ACOM 24V(VEN)

24V (VEN)

24V

DFSSW2 OPEN

DFSSW1 OPEN

1

2

3

3

2

1

CN5(B-11)

CN5(B-12)

CN5(B-13)

CN5(B-7)

CN5(B-8)

CN5(A-6)

CN5(A-7)

CN5(A-4)

CN5(A-5)

CN5(A-1)

CN5(A-2)

CN5(A-3)

CN4-1

CN4-2

CN4-3

CN4-4

NC:

CN1-5
CN1-6
CN2-4
CN2-5
CN3-14

CN6(A-1)
CN6(A-2)
CN6(A-3)

CN6(B-3)

CN6(B-2)

CN6(B-1)

CN6(B-4)
CN6(B-5)
CN6(B-6)

CN6(A-4)

CN6(A-5)

CN6(A-6)

CN6(A-10)

CN6(A-11)

CN6(A-12)

CN6(A-7)

CN6(A-8)

CN6(A-9)

CN6(B-7)

CN6(B-8)

CN6(B-9)

CN6(B-15)

CN6(B-14)

CN6(B-13)

SG

OSSW

5V

5V
OFSW
SG

SG

OSBSW

5V

SG

OSWSW

5V

SG

OSLSW

5V

OSLED (RED)

SG

OSLED (GN)

SG

DFTSW

5V

DFDPCB

OCM

OFSOL

SBPSOL

OFCL

SBFSSOL

EFSSOL

OFM

DFSSW1

DFSSW2

DFTSW

OSLSW

OSBSW

OFSW

OSSW

OSWSW

OSLED
PCB

B

A

1234 567891011

123456789101112

1234 567891011

123456789101112

Connected to the copier

NC

FG

FG
FG

SG
SG
5V
5V
PG
PG
24V
24V

CN1-10
CN1-9
CN1-8
CN1-7
CN1-4
CN1-3
CN1-2
CN1-1

NC

NC
OSLED(RED)
OSLED(GREEN)
SBPSOL(RET)
SBPSOL(ACT)
OFCL
EFSSOL
RESERVE(SOL)
SBFSSOL
OFSOL(RET)
OFSOL(ACT)
OFM ENABLE

OSBSW
OFSW
OSSW
RESERVE(SW)
RESERVE(SW)
DF SHORT
OSWSW
DFSSW2
DFSSW1
OSLSW
DFTSW

OFM RET
FOMT CLK
OFM CWB
OCM ENABLE
OCM RET
OCM CLK
OCM CWB
OCM Vref
OCM M3
OCM M2
OCM M1

CN3-3
CN3-2

CN2-13

CN3-10
CN3-9
CN2-22
CN2-21
CN2-20
CN2-19
CN2-18
CN2-17
CN2-16
CN2-15
CN2-14

CN2-12
CN2-11
CN2-10
CN2-9
CN2-8
CN2-7
CN2-6
CN2-3
CN2-2
CN2-1

CN3-1
CN3-4
CN3-12
CN3-11
CN3-8
CN3-7
CN3-6
CN3-5
CN3-13

Connection diagram

3C0

2-4-7

3C0

Wiring diagram

SBFSSOL

BE

C27

1

2

24V

SBFSSOL

C26

2

1

C5(B-8) GY

C5(B-7) GYBE

EFSSOL

BE

C25

1

2

24V

EFSSOL

C24

2

1

C5(A-7) GY

C5(A-6) GYBE

6
SG

1

C31-3 OE

C31-1 BE

C31-2 YW

321

5V

OSLSW

SG

OEYWBE

OSLSW

C31-6 OE

C31-5 GY

C31-4 BE

321

SG

OSWSW

5V

5V

1

C6(B-1) RD

C6(A-10) GY

C6(A-9) GY

C6(A-8) GY

C6(A-7) GY

432

5

5VSGOSWSW

OSLSW

C8-1 OE

C8-3 BE

C8-2 YW

C7-3 BE

C30

C31

OSWSW

OSSW

OSSW

SG

2

3

C23

C6(B-2) RD

C6(B-3) RD

C6(A-12) GY

C6(A-11) GY

C28

1

5V

C29

65432

C7-2 GY

C7-1 OE

C4-4 RD

DFSSW1

DFSSW1

DFSSW2

3P21

C4-3 RD

C4-1 RD

P2-2 RD

123
24V

24V(VEN)

DFSSW2

24V

24V(VEN)

2

P1-1 RD

C4-2 RD

P1

OSLEDPCB

OSLED(G

SG

OSLED(R

231

C6(B-7) GY

C6(B-8) GY

C6(B-9) GY

P1-3 RD

P2-3 RD

P2-1 RD

P1-2 RD

123

4

24V(VEN)

24V

DFSSW2

DFSSW1

(CN4)

A-14

A-13

A-15

RESERVE(SW)

5V

SG

5V

OSSWSG5V

B-3

B-2

B-1

C23-2 WH

C23-3 WH

C23-1 RD

C15-1 RD

C15-2 GY

C15-3 GY

A-12

A-11

A-13

OCM B

OCM B_

OCM A_

OFM A

OFM BCOM

OFM ACOM

B-1

B-3

B-2

C9-6 RD

C9-5 GY

C9-4 GY

OFSW

5V

SG

OFSW

2

1

3

C22

C6(B-4) BK

C6(B-5) BK

C6(B-6) BK

C101-11

C101-10

C101-9

123456789
24V

24VPGPG5VNCNC5VSGSG

C4

C28-1 RD

C28-2 GY

C28-3 GY

C28-4 GY

C28-5 GY

A-7

A-8

A-9

A-10

A-11

A-12

5VSGOSWSW

5V

OFSW

SG

OSLED(RD)SGOSLED(GN)5VDOCSW SG5V

B-9

B-8

B-7

B-6

B-5

B-4

C21-1 BK

C21-2 BK

C21-3 BK

C22-3 GY

C22-2 GY

C15-4 GY

C15-5 GY

C15-6 GY

C24-1 GY

C24-2 GY

A-9

A-5

A-6

A-7

A-8

A-10

OCM ACOM

OCM BCOM

OCM A

OFCL

24V

EFSSOL

OFM A_

OFM B_

24V

SBFSSOL

OFM B

24V

B-9

B-7

B-6

B-8

B-5

B-4

C9-3 GY

C9-2 GY

C9-1 GY

C26-2 GY

C26-1 GY

5V
OSBSW
SG

OSBSW

OFSOL

GNBNRD

2

3

OFSOL(ACT)

OFSOL(RET)

24V

C21

2

1

31

C5(B-13) GY

C5(B-12) GY

C101-8

C101-7

C101-6

C28-6 GY

C18-1 GY

C18-2 GY

C18-3 GY

A-2

A-3

A-4

A-5

A-6

SG

OSBSW

5VSGOSLSW

DFTSW

B-14

B-13

B-12

B-10

B-11

C17-1 GY

C22-1 GY

C11-1 GY

C11-2 GY

C13-1 GY

C13-2 GY

C13-3 GY

A-1

A-2

A-3

A-4

SBPSOL(RET)

24V

24V

SBPSOL(ACT)

OFSOL(RET)

OFSOL(ACT)

24V

RESERVE(SOL)

B-13

B-12

B-11

B-10

C19-3 GY

C19-2 GY

C19-1 GY

C18

C6(A-6) GY

1

C6(A-5) GY

2

C6(A-4) GY

3

C20

C19

C5(B-11) GY

C101-5

C101-4

10

(CN1)

C1

(CN3)

C3

A-1

(CN6)

C6

SG

B-15

C17-2 GY

C17-3 GY

(CN2)

C2

(CN5)

C5

DFTSW

SG
DFTSW
5V

OCM

SBPSOL

OFCL

OFM

OSSW

1

OFSW

2

OSBSW

3
4

RESERVE(SW)

5

OSLSW
DFSSW1

6

DCSSW2

7
8

OSWSW
OSLED(GN)

9

OSLED(RD)

10

DF SHORT

11
12

RESERVE(SW)
DFTSW

13
14

NC

OCM M1

1

OCM M2

2

OCM M3

3

NC

4

NC

5

OCM Vref

6

OCM CWB

7

OCM CLK

8

OCM RET

9

10

OCM ENABLE
OFM CWB

11

OFM CLK

12

OFM RET

13
14

OFM ENABLE
OFSOL(ACT)

15

OFSOL(RET)

16

SBFSSOL

17

RESERVE(SOL)

18

EFSSOL

19

OFCL

20

SBPSOL(ACT)

21

SBPSOL(RET)

22

DFDPCB

C17
C6(B-15) GY

3

C6(B-14) GY

2

C6(B-13) GY

1

BK
WE
RD
BE
YW
OE

RD
BN
GN

BK
BK

BK
WE
RD
BE
YW
OE

C102-4
C102-3
C102-2
C102-5
C102-11
C102-10
C102-9
C102-8
C104-3
C104-2
C102-7
C102-6
C102-12

C103-11
C103-10
C103-9

C103-8
C103-7
C103-6
C103-5
C103-4
C103-3
C103-2
C103-1
C104-12
C104-11
C104-10
C104-9
C104-8
C104-7
C104-6
C104-5
C104-4

C16

1

OCM ACOM

2

OCM BCOM

3

OCM A

4

OCM B
OCM A_

5
6

OCM B_

C14

1

24V
SBPSOL(ACT)

2
3

SBPSOL(RET)

C12

1

24V

2

OFCL

C10

1

OFM ACOM

2

OFM BCOM

3

OFM A

4

OFM B
OFM A_

5
6

OFM B_

C1-10
C1-9
C1-8
C1-7
C1-4
C1-3
C1-2
C1-1

C3-3
C3-2
C3-1
C3-4
C3-12
C3-11
C3-8
C3-7
C3-6
C3-5
C3-13

C2-13
C2-12
C2-11
C2-10
C2-9
C2-8
C2-7

C2-6
C2-3
C2-2
C2-1

C3-10
C3-9

C2-22
C2-21

C2-20
C2-19
C2-18
C2-17
C2-16
C2-15
C2-14

C15

C13

C11

C9

M1

6
5
4
3
2
1

3
2
1

2
1

6
5
4
3
2
1

C5(A-8) RD
C5(A-9) GY
C5(A-10) GY
C5(A-11) GY
C5(A-12) GY
C5(A-13) RD

C5(A-1) GY
C5(A-2) GY
C5(A-3) GY

C5(A-4) GY
C5(A-5) GY

C5(B-1) RD
C5(B-2) GY
C5(B-3) GY
C5(B-4) GY
C5(B-5) GY
C5(B-6) GY

1

FG

2

FG

3

NC

4

SG

5

C101 C102 C103 C104

SG

6

5V

7

5V

8

PG

9

PG

10

24V

11

24V

1

NC

2

OSBSW

3

OFSW

4

OSSW

5

RESERVE(SW)

6

RESERVE(SW)
DF SHORT

7

OSWSW

8

DFSSW2

9

10

DFSSW1
OSLSW

11
12

DFTSW

1

OFM RET

2

OFM CLK

3

OFM CWB
OCM ENABLE

4
5

OCM RET
OCM CLK

6

OCM CWB

7
8

OCM Vref

9

OCM M3

10

OCM M2

11

OCM M1

1

NC
OSLED(RED)

2

OSLED(GREEN)

3

SBPSOL(RET)

4

SBPSOL(ACT)

5

OFCL

6

EFSSOL

7

RESERVE(SOL)

8

SBFSSOL

9

OFSOL(RET)

10
11

OFSOL(ACT)

12

OFM ENABLE

AB

Connected to the copier

2-4-8

KYOCERA MITA EUROPE B.V.

Hoeksteen 40, 2132 MS Hoofddorp,
The Netherlands
Phone: [phone]
Home page: http://www.kyoceramita-europe.com
Email: [e-mail]

KYOCERA MITA NEDERLAND B.V.

Hoeksteen 40, 2132 MS Hoofddorp,
The Netherlands
Phone: [phone]

KYOCERA MITA (UK) LIMITED

8 Beacontree Plaza
Gillette Way,
Reading RG2 0BS UK
Phone: [phone]

KYOCERA MITA ITALIA S.P.A.

Via Verdi 89/91 20063 Cernusco sul Naviglio
(Milano) Italy
Phone: [phone]

S.A. KYOCERA MITA BELGIUM N.V.

Hermesstraat 8A, 1930 Zaventem, Belgium
Phone: [phone]

KYOCERA MITA FRANCE S.A.

Parc les Algorithmes
SAINT AUBIN
91194 GIF-SUR-YVETTE
France
Phone: [phone]

KYOCERA MITA ESPAÑA S.A.

Edificio Kyocera, Avda. De Manacor Nº2,
Urb. Parque Rozas, Apartado de Correos 76,
28230 Las Rozas, Madrid, Spain
Phone: [phone]

KYOCERA MITA FINLAND OY

Kirvesmiehenkatu 4, 00810 Helsinki,
Finland
Phone: [phone]

KYOCERA MITA (SCHWEIZ) AG

Industriestrasse 28,
8604 Volketswil, Switzerland
Phone: [phone]

KYOCERA MITA DEUTSCHLAND GMBH

Mollsfeld 12 40670 Meerbusch,
Germany
Phone: [phone]

KYOCERA MITA GMBH AUSTRIA

Eduard-Kittenberger-Gasse 95,
1230, Wien, Austria
Phone: [phone]

KYOCERA MITA SVENSKA AB

Siktgatan 2,
162 50 Vällingby, Sweden
Phone: [phone]

KYOCERA MITA DANMARK A/S

Industrivej 11, DK-4632 Bjæverskov,
Denmark
Phone: [phone]

KYOCERA MITA PORTUGAL LDA.

CASCAISTOCK-Armazem nº8,
Rua das Fisgas, Alcoitão,
2765 Estoril, Portugal
Phone: [phone]

KYOCERA MITA SOUTH AFRICA
(PTY) LTD.

UNIT 3, "Kyalami Crescent,"
Kyalami Business Park,
1685 Midrand, South Africa
Phone: [phone]

KYOCERA MITA
AMERICA, INC.

Headquarters:

225 Sand Road, P.O. Box 40008,
Fairfield, New Jersey 07004-0008,
U.S.A.
Phone: [phone]

KYOCERA MITA AUSTRALIA PTY.
LTD.

Level 3, 6-10 Talavera Road, North Ryde,
N.S.W. 2113 Australia

Phone: [phone]

KYOCERA MITA NEW ZEALAND LTD.

1-3 Parkhead Place,
Albany, Auckland,
New Zealand
Phone: [phone]

KYOCERA MITA (THAILAND) CORP.,
LTD.

9/209 Ratchada-Prachachem Road,
Bang Sue, Bangkok 10800, Thailand

Phone: [phone]

KYOCERA MITA SINGAPORE
PTE LTD.

121 Genting Lane, 3rd Level,
Singapore 349572

Phone: [phone]

KYOCERA MITA HONG KONG
LIMITED

11/F., Mita Centre,
552-566, Castle Peak Road,
Tsuen Wan, New Territories,
Hong Kong
Phone: [phone]

KYOCERA MITA
CORPORATION

2-28, 1-chome, Tamatsukuri, Chuo-ku
Osaka 540-8585, Japan
Phone: [phone]

©2002 KYOCERA MITA CORPORATION

is a trademark of Kyocera Corporation
is a registered trademark of KYOCERA MITA CORPORATION

Printed in Holland