Utax PF 420 Service Manual

Service
Manual

Paper Feeder

PF 420

First Edition
Date: 04-08-2009
3MHSM060

Service
Manual

Paper Feeder

PF 420

First Edition
Date: 04-08-2009
3MHSM060

CAUTION

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF
USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

It may be illegal to dispose of this battery into the municipal waste stream. Check with your local
solid waste officials for details in your area for proper disposal.

ATTENTION

IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE
TYPE INCORRECT. METTRE AU REBUT LES BATTERIES UTILISEES SELON LES INSTRUC­TIONS DONNEES.

Il peut être illégal de jeter les batteries dans des eaux d’égout municipales. Vérifiez avec les fonc­tionnaires municipaux de votre région pour les détails concernant des déchets solides et une mise
au rebut appropriée.

Revision history

Revision Date Replaced pages Remarks

This page is intentionally left blank.

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 power
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 imme-

diately. ............................................................................................................................................

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. .....................................................................................

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3MH

CONTENTS

1-1 Specifications

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

1-1-2 Parts names............................................................................................................................................1-1-2

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

1-2 Installation

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

1-2-2 Unpacking ...............................................................................................................................................1-2-2

(1) Unpacking .........................................................................................................................................1-2-2

(2) Remove the tapes and spacer ..........................................................................................................1-2-3

1-2-3 Installing the cassette heater (option) .....................................................................................................1-2-4

1-3 Maintenance Mode

1-3-1 Maintenance mode (operation panel is a 7-segment type) .....................................................................1-3-1

(1) Executing a maintenance item ..........................................................................................................1-3-1

(2) Maintenance mode item list...............................................................................................................1-3-2

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

1-3-2 Maintenance mode (operation panel is an LCD type)...........................................................................1-3-13

(1) Executing a maintenance item ........................................................................................................1-3-13

(2) Maintenance mode item list.............................................................................................................1-3-14

(3) Contents of maintenance mode items.............................................................................................1-3-15

1-4 Troubleshooting

1-4-1 Paper misfeed detection .........................................................................................................................1-4-1

(1) Paper misfeed indication ...................................................................................................................1-4-1

(2) Paper misfeed detection conditions ..................................................................................................1-4-1

(3) Paper misfeeds .................................................................................................................................1-4-3

1-4-2 Self-diagnosis .........................................................................................................................................1-4-6

(1) Self-diagnostic function (operation panel is a 7-segment type).........................................................1-4-6

(2) Self diagnostic codes (operation panel is a 7-segment type)............................................................1-4-6

(3) Self-diagnostic function (operation panel is an LCD type) ................................................................1-4-7

(4) Self diagnostic codes (operation panel is an LCD type)....................................................................1-4-7

1-4-3 Image formation problems ......................................................................................................................1-4-8

(1) The leading edge of the image is consistently misaligned with the original. .....................................1-4-8

(2) The leading edge of the image is sporadically misaligned with the original. .....................................1-4-8

(3) Image center does not align with the original center. ........................................................................1-4-8

1-4-4 Electric problems ....................................................................................................................................1-4-9

1-4-5 Mechanical problems ............................................................................................................................1-4-11

1-5 Assembly and Disassembly

1-5-1 Precautions for assembly and disassembly............................................................................................1-5-1

(1) Precautions .......................................................................................................................................1-5-1

1-5-2 Paper feed section..................................................................................................................................1-5-2

(1) Detaching and refitting the feed roller ...............................................................................................1-5-2

(2) Detaching and refitting the cassette separation pulley......................................................................1-5-3

(3) Detaching and refitting the cassette forwarding pulley and cassette paper feed pulley....................1-5-5

2-1 Mechanical Construction

2-1-1 Mechanical construction .........................................................................................................................2-1-1

2-2 Electrical Parts Layout

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

(1) PWBs ................................................................................................................................................2-2-1

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

(3) Others................................................................................................................................................2-2-3

2-3 Operation of the PWBs

2-3-1 Cassette main PWB................................................................................................................................2-3-1

3MH

2-4 Appendixes

List of maintenance parts........................................................................................................................2-4-1

Periodic maintenance procedures ..........................................................................................................2-4-1

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

3MH

1-1-1

1-1 Specifications

1-1-1 Specifications

Paper supply method......................Friction retard method

Paper weight...................................64 to 105 g/m

2

Paper types..................................... Standard, recycled

Paper size.......................................A3, B4, A4, A4R, B5, B5R, A5R, Folio, Ledger, Legal, OficioII, Letter, LetterR,

StatementR, 8K, 16K

Paper capacity ................................ 300 sheets (80 g/m

2

)

Power source..................................Electrically connected to the machine.

Dimensions .....................................568 (W) x 546 (D) x 135 (H) mm

22

3/8" (W) x 21 1/2" (D) x 5 5/16" (H)

Weight.............................................6 kg/13.2 lbs

NOTE: These specifications are subject to change without notice.

3MH

1-1-2

1-1-2 Parts names

Figure 1-1-1

2

1

3

3

4

1. Cassette

2. Cassette left cover

3. Paper width guides

4. Paper length guide

3MH

1-1-3

1-1-3 Machine cross section

Figure 1-1-2 Machine cross section

Paper path

3MH

1-1-4

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3MH

1-2-1

1-2 Installation

1-2-1 Installation environment

Installation location (Be based on the machine 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 locations subject to high temperature and high humidity or low temperature and low humidity; an abrupt change in
the environmental temperature; and cool or hot, direct air.
Avoid places subject to dust and vibrations.
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 well-ventilated location.

3MH

1-2-2

1-2-2 Unpacking

(1) Unpacking

Figure 1-2-1 Unpacking

Caution: Place the machine on a level surface. See the Installation Guide for installation.

1. Paper feeder

2. Outer case

3. Bottom left pad

4. Bottom right pad

5. Top left pad

6. Top right pad

7. Plastic sheet

8. Plastic bag

9. Plastic bag

10. Cover labels

11. Plastic bag

12. Screw M3 x 8

13. Screw M3 x 12

14. Connector cover

15. Cursor pins

16. Cassette size label

17. Installation guide

18. Bar code labels

3MH

1-2-3

(2) Remove the tapes and spacer

Procedure

1. Remove two tapes.

2. Remove the spacer.

Figure 1-2-2

3. Pull the cassette out and remove the tape.

4. Push the cassette back in.

Figure 1-2-3

Ta pe

Spacer

Ta pe

Ta pe

3MH

1-2-4

1-2-3 Installing the cassette heater (option)

Installing the cassette heater requires the following component:

Cassette heater (P/N 303MH94060): for 220 to 240 V specifications only
Cassette heater (P/N 303MH94050): for 120 V specifications
One (1) M3 x 8 P tight screw (P/N 7BB202308H)

Procedure

1. Remove the screw and the pin and then
remove the cassette rear cover.

2. Pull out the cassette.

Figure 1-2-4

3. Pass the cassette heater cable through the
hole at the machine rear side.

4. Insert the stay of the cassette heater into the
hole at the machine rear side.

5. Attach the cassette heater using the M3 x 8
P tight screw.

Figure 1-2-5

Screw

Pin

Cassette rear cover

Cassette heater

Cassette
heater cable

Stay

M3 x 8
P tight screw

3MH

1-2-5

6. Connect the connector of the cassette
heater cable to the connector of the
machine.

7. Refit all the removed parts.

Figure 1-2-6

Cassette heater cable

Connector

3MH

1-2-6

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3MH

1-3-1

1-3 Maintenance Mode

1-3-1 Maintenance mode (operation panel is a 7-segment type)

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

(1) Executing a maintenance item

Enter “10871087” using

the numeric keys.

Enter “001” using the

zoom

+/- keys

or numeric keys

and press the start key.

Enter the maintenance item

number using the zoom

+/- keys or numeric keys.

The selected maintenance item is run.

Press the stop/clear key.

Press the start key.

Start

End

Maintenance mode is entered.

The maintenance item is
selected.

Maintenance mode is exited.

Repeat the same

maintenance item?

Run another maintenance

item?

No

No

Yes

Yes

3MH

1-3-2

(2) Maintenance mode item list

Section

Item

No.

Content of maintenance item

Initial

setting*

General U019 Displaying the ROM version -

Drive, paper
feed and
paper convey­ing system

U030 Checking motor operation -

U031 Checking switches for paper conveying -

U032 Checking clutch operation -

U034 Adjusting the print start timing

Adjusting the leading edge registration
Adjusting the center line
Adjusting the trailing edge margin
Adjusting the leading edge registration

2.8/0.0/0.0/0.0/0.0/0.8

*1

-2.4/0.0/0.0/0.0/0.0/0.0

*1

2.0

*1

2.0/2.0/2.0/2.0/2.0/2.0

*1

U051 Adjusting the deflection in the paper 30/20/ 0/ -20/ -20/20

*1

U053 Performing fine adjustment of the motor speed 0.3/0.7/-0.5/0/0/0/0.5

*1

-0.1/-0.1/-0.3

*1

Mode setting U341 Specific paper feed location setting for printing function -

Other U901 Checking/clearing copy counts by paper feed locations -

*Initial setting for executing U020, *1: The item initialized for executing U020, *2: The item initialized for executing U021

3MH

1-3-3

(3) Contents of maintenance mode items

Maintenance

item No.

Description

U019

Displaying the ROM version
Description

Displays the part number of the ROM fitted to each board.

Purpose

To check the part number or to decide if the ROM version is new from the last digit of the number.

Method

1. Press the start key.

2. Select the item to be displayed using the image mode selection key and exposure adjustment keys.

: Off, : On, : Flashing

When the optional equipment is not installed, [non] is displayed.

Completion

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

Image mode LEDs

Exposure
indicator

Copy quantity display

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)
Exp. 4 (lit)

“A” Part Code: Main PWB
Change history of the main PWB
Number of the main ROM
Number of the main ROM sub

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)
Exp. 4 (lit)
Exp. 5 (lit)
Exp. 1 (flashing)

“E” Part Code: Engine PWB
Change history of the engine PWB
Number of the engine ROM
Number of the engine ROM sub
Change history of the engine PWB BOOT
Number of the engine PWB BOOT

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)
Exp. 4 (lit)
Exp. 5 (lit)

“L” Part Code: Language
Change history of the standard language
Number of the standard language ROM
Change history of the optional language
Number of the optional language ROM

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)
Exp. 4 (lit)

“C” Part Code: Cassette
Number of the first paper feeder ROM
Number of the second paper feeder ROM
Number of the third paper feeder ROM

Exp. 1 (lit)
Exp. 2 (lit)

“d” Part Code: DP
Number of the optional DP ROM

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)

“P” Part Code: Printer
Change history of the optional printer
Number of the optional printer ROM

3MH

1-3-4

U030

Checking motor operation
Description

Drives each motor.

Purpose

To check the operation of each motor.

Method

1. Press the start key.

2. Select the motor to be operated using the exposure adjustment keys.

3. Press the start key. The selected motor operates.

4. To stop operation, press the stop/reset key.

Completion

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

U031

Checking switches for paper conveying
Description

Displays the on-off status of each paper detection switch on the paper path.

Purpose

To check if the switches for paper conveying operate correctly.

Method

1. Press the start key.

2. Turn each switch on and off manually to check the status. When the on-status of a switch is detected,
the original size indicator corresponding to the operated switch lights.

Completion

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

Maintenance

item No.

Description

Display Motor

A Drive motor (DM) is turned ON

2F Drum motor (DRM) is turned ON

F1 Cassette drive motor 1 (CDM1) is turned ON

F2 Cassette drive motor 2 (CDM2) is turned ON

F3 Cassette drive motor 3 (CDM3) is turned ON

EJ1 Eject motor (EM) forward rotation is turned ON

EJ2 Eject motor (EM) reverse rotation is turned ON

Original size indicator Switch

A3R/Ledger Eject switch (ESW)

A4R/Legal Registration switch (RSW)

A5R/Legal Cassette feed switch 1 (CFSW1)

A4/Letter-R Cassette feed switch 2 (CFSW2)

B4R/Letter Feedshift switch (FSSW)

B5R/Statement Duplex paper conveying switch (DUPPCSW) (option)

3MH

1-3-5

U032

Checking clutch operation
Description

Turns each clutch or solenoid on.

Purpose

To check the operation of each clutch or solenoid.

Method

1. Press the start key.

2. Select the clutch or solenoid to be operated using the exposure adjustment keys.

3. Press the start key. The selected clutch turns on for 1 s.

Completion

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

Maintenance

item No.

Description

Display Clutch

P1 Paper feed clutch (PFCL)

Pb MP solenoid (MPSOL)

A1 Registration clutch (RCL)

d1 Duplex feed clutch (DUPFCL)

P2 Cassette paper feed clutch 1 (CPFCL1)

P3 Cassette paper feed clutch 2 (CPFCL2)

P4 Cassette paper feed clutch 3 (CPFCL3)

3MH

1-3-6

U034

Adjusting the print start timing
Description

Adjusts the leading edge registration, center line or trailing edge margin.

Purpose

Make the adjustment if there is a regular error between the leading edges of the copy image and original.
Make the adjustment if there is a regular error between the center lines of the copy image and original.
Make the adjustment if there is a regular error between the trailing edges of the copy image and original.

Method

1. Press the start key.

2. Select the item using the image mode selection key.

: Off, : On, : Flashing

Adjustment: leading edge registration adjustment

1. Select group 1 using the image mode selection key.

2. Select the item using the exposure adjustment keys.

3. Press the interrupt key.

4. Press the start key to output a test pattern.

5. Change the setting value using the zoom +/- keys.
For output example 1, decrease the value. For output example 2, increase the value.

Figure 1-3-1

Maintenance

item No.

Description

Image mode LEDs
(group No.)

Description

1 Leading edge registration adjustment

2 Center line adjustment

3 Trailing edge margin adjustment

4 Leading edge registration adjustment for printer

Exposure
indicator

Description Setting

range

Initial
setting

Change in
value per step

Exp. 1 (lit) Paper feed from cassette -5.0 to 10.0 2.8 0.1 mm

Exp. 2 (lit) Paper feed from MP tray -5.0 to 10.0 0.0 0.1 mm

Exp. 3 (lit) Paper feed from first paper feeder -5.0 to 10.0 0.0 0.1 mm

Exp. 4 (lit) Paper feed from second paper

feeder

-5.0 to 10.0 0.0 0.1 mm

Exp. 5 (lit) Paper feed from third paper

feeder

-5.0 to 10.0 0.0 0.1 mm

Exp. 1 (flashing) Duplex mode -5.0 to 10.0 0.8 0.1 mm

Correct image Output

example 1

Output

example 2

Leading edge registration (20 ± 1.0 mm)

3MH

1-3-7

U034

(cont.)

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

Caution

Check the copy image after the adjustment. If the image is still incorrect, perform the following adjustments in
maintenance mode.

Adjustment: center line adjustment

1. Select group 2 using the image mode selection key.

2. Select the item using the exposure adjustment keys.

3. Press the interrupt key.

4. Press the start key to output a test pattern.

5. Change the setting value using the zoom +/- keys.
For output example 1, decrease the value. For output example 2, increase the value.

Figure 1-3-2

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

Caution

Check the copy image after the adjustment. If the image is still incorrect, perform the following adjustments in
maintenance mode.

Maintenance

item No.

Description

U071

(See the service manual

for the machine.)

U066

(See the service manual

for the machine.)

U034

Exposure
indicator

Description Setting

range

Initial
setting

Change in
value per step

Exp. 1 (lit) Paper feed from cassette -7.0 to 10.0 -2.4 0.1 mm

Exp. 2 (lit) Paper feed from MP tray -7.0 to 10.0 0.0 0.1 mm

Exp. 3 (lit) Paper feed from first paper feeder -7.0 to 10.0 0.0 0.1 mm

Exp. 4 (lit) Paper feed from second paper

feeder

-7.0 to 10.0 0.0 0.1 mm

Exp. 5 (lit) Paper feed from third paper

feeder

-7.0 to 10.0 0.0 0.1 mm

Exp. 1 (flashing) Duplex mode -7.0 to 10.0 0.0 0.1 mm

Center line of printing (± 1.0 mm)

Correct image Output

example 1

Output

example 2

U072

(See the service manual

for the machine.)

U067

(See the service manual

for the machine.)

U034

3MH

1-3-8

U034

(cont.)

Adjustment: trailing edge margin adjustment

1. Select group 3 using the image mode selection key.

2. Press the interrupt key.

3. Press the start key to output a test pattern.

4. Change the setting value using the zoom +/- keys.
For output example, increase the value.

Figure 1-3-3

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

Adjustment: leading edge registration adjustment for printer

1. Select group 4 using the image mode selection key.

2. Select the item using the exposure adjustment keys.

3. Press the interrupt key.

4. Press the start key to output a test pattern.

5. Change the setting value using the zoom +/- keys.
For output example 1, decrease the value. For output example 2, increase the value.

Figure 1-3-4

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

Completion

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

Maintenance

item No.

Description

Description Setting

range

Initial
setting

Change in
value per step

Trailing edge margin adjustment -4.0 to 10.0 2.0 0.1 mm

Correct image Output

example

Trailing edge margin

Exposure
indicator

Description Setting

range

Initial
setting

Change in
value per step

Exp. 1 (lit) Paper feed from cassette -5.0 to 10.0 2.0 0.1 mm

Exp. 2 (lit) Paper feed from MP tray -5.0 to 10.0 2.0 0.1 mm

Exp. 3 (lit) Paper feed from first paper feeder -5.0 to 10.0 2.0 0.1 mm

Exp. 4 (lit) Paper feed from second paper

feeder

-5.0 to 10.0 2.0 0.1 mm

Exp. 5 (lit) Paper feed from third paper

feeder

-5.0 to 10.0 2.0 0.1 mm

Exp. 1 (flashing) Duplex mode -5.0 to 10.0 2.0 0.1 mm

Correct image Output

example 1

Output

example 2

Leading edge registration (20 ± 1.0 mm)

3MH

1-3-9

U051

Adjusting the deflection in the paper
Description

Adjusts the deflection in the paper.

Purpose

Make the adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper
is Z-folded.

Adjustment

1. Press the start key.

2. Select the item using the exposure adjustment keys.

3. Press the interrupt key.

4. Place an original and press the start key to make a test copy.

5. Change the setting value using the zoom +/- keys.
For output example 1, increase the value. For output example 2, decrease the value.
The greater the value, the larger the amount of slack; the smaller the value, the smaller the amount of
slack.

Figure 1-3-5

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

Completion

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

Maintenance

item No.

Description

Exposure
indicator

Description Setting

range

Initial
setting

Change in
value per step

Exp. 1 (lit) Paper feed from cassette -50 to 127 30 0.32 mm

Exp. 2 (lit) Paper feed from MP tray -50 to 127 20 0.32 mm

Exp. 3 (lit) Paper feed from first paper feeder -50 to 127 0 0.32 mm

Exp. 4 (lit) Paper feed from second paper

feeder

-50 to 127 -20 0.32 mm

Exp. 5 (lit) Paper feed from third paper

feeder

-50 to 127 -20 0.32 mm

Exp. 1 (flashing) Duplex mode -50 to 127 20 0.32 mm

Original Copy

example 1

Copy

example 2

3MH

1-3-10

U053

Performing fine adjustment of the motor speed
Description

Performs fine adjustment of the speeds of the motors.

Purpose

Used to adjust the speed of the respective motors when the magnification is not correct. Also speed adjust­ment for each paper source can be performed in group 2.

Method
Setting

1. Press the start key.

2. Select the group using the image mode selection key.

3. Select the item to be set using the exposure adjustment keys.

: Off, : On

Adjustment

1. Press the interrupt key.

2. Press the start key to output a VTC pattern.

Figure 1-3-6

3. Change the setting value using the zoom +/- keys.
A: Drive motor speed adjustment

Increasing the setting makes the image longer in the auxiliary scanning direction, and decreasing it
makes the image shorter in the auxiliary scanning direction.

B: Polygon motor speed adjustment

Increasing the setting makes the image shorter in the main scanning direction, and decreasing it
makes the image longer in the main scanning direction.

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

Completion

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

Maintenance

item No.

Description

Image mode
LEDs

Exposure
indicator

Description

Setting
range

Initial
setting

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)
Exp. 4 (lit)
Exp. 5 (lit)
Exp. 1 (flashing)
Exp. 2 (flashing)

Drive motor speed adjustment
Polygon motor speed adjustment
Eject motor speed adjustment
Drum motor speed adjustment
Eject motor speed adjustment 2
Eject motor speed adjustment 3
Eject motor speed adjustment 4

-5.0 to 5.0

-5.0 to 4.0

-5.0 to 5.0

-5.0 to 5.0

-5.0 to 5.0

-5.0 to 5.0

0.0 to 5.0

0.3

0.7

-0.5
0
0
0

0.5

Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)

Motor speed adjustment (for paper
feed from MP tray)
Motor speed adjustment (for paper
feed from paper feeder)
Motor speed adjustment
(in duplex mode)

-5.0 to 5.0

-5.0 to 5.0

-5.0 to 5.0

-0.1

-0.1

-0.3

Correct values for an A3/Ledger output are:
A = 300

± 1.0 mm

B = 270

± 1.0 mm

3MH

1-3-11

U341

Specific paper feed location setting for printing function
Description

Sets a paper feed location specified for printer output.

Purpose

To use a paper feed location only for printer output. A paper feed location specified for printer output cannot
be used for copy output.

Setting

1. Press the start key.

2. Select the paper feed location for the printer using the exposure adjustment keys.

3. Select "on" or "oFF" using the zoom +/- keys.

4. Press the start key. The setting is set.

Completion

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

Maintenance

item No.

Description

Display Description

Exp. 1 Cassette

Exp. 2 First paper feeder

Exp. 3 Second paper feeder

Exp. 4 Third paper feeder

3MH

1-3-12

U901

Checking/clearing copy counts by paper feed locations
Description

Displays or clears copy counts by paper feed locations.

Purpose

To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts.

Method

1. Press the start key.

2. Select the paper feed location (group No.) for which the count is to be checked or cleared using the
image mode selection key.

3. Select the item using the exposure adjustment keys.

: Off, : On, : Flashing
When no optional paper feed device is installed, the counts corresponding to optional paper feed
devices will not appear.

Clearing copy counts by paper feed locations

1. Select the paper feed location to clear the count.
Paper feeder copy count cannot be cleared.

2. Light exp. 3 using the exposure adjustment key.

3. Press the start key. The count is cleared.

Completion

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

Maintenance

item No.

Description

Image mode LED
(group No.)

Exposure
indicator

Copy quantity display (count value)

1 Exp. 1

Exp. 2
Exp. 3

First 3 digits of MP copy count
Last 3 digits of MP copy count
Clearing the count (CLE)

2 Exp. 1

Exp. 2
Exp. 3

First 3 digits of the cassette copy count
Last 3 digits of the cassette copy count
Clearing the count (CLE)

3 Exp. 1

Exp. 2
Exp. 3

First 3 digits of the first paper feeder copy count
Last 3 digits of the first paper feeder copy count
Clearing the count (CLE)

4 Exp. 1

Exp. 2
Exp. 3

First 3 digits of the second paper feeder copy count
Last 3 digits of the second paper feeder copy count
Clearing the count (CLE)

5 Exp. 1

Exp. 2
Exp. 3

First 3 digits of the third paper feeder copy count
Last 3 digits of the third paper feeder copy count
Clearing the count (CLE)

6 Exp. 1

Exp. 2
Exp. 3

First 3 digits of the duplex unit copy count
Last 3 digits of the duplex unit copy count
Clearing the count (CLE)

3MH

1-3-13

1-3-2 Maintenance mode (operation panel is an LCD type)

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

(1) Executing a maintenance item

Enter 10871087 using

the numeric keys.

Enter 001 using the cursor

up/down keys or numeric keys

and press the start key.

Enter the maintenance item

number using the cursor up/down keys

or numeric keys.

The selected maintenance item is run.

Press the stop/clear key.

Press the start key.

Start

End

Maintenance mode is entered.

The maintenance item is
selected.

Maintenance mode is exited.

Repeat the same

maintenance item?

Run another maintenance

item?

No

No

Yes

Yes

3MH

1-3-14

(2) Maintenance mode item list

Section

Item

No.

Content of maintenance item

Initial

setting*

General U019 Displaying the ROM version -

Drive, paper
feed and
paper convey­ing system

U030 Checking motor operation -

U031 Checking switches for paper conveying -

U032 Checking clutch operation -

U034 Adjusting the print start timing

Adjusting the leading edge registration
Adjusting the center line
Adjusting the trailing edge registration

2.8/0.0/0.0/0.0/0.0/0.8

*1

-2.4/0.0/0.0/0.0/0.0/0.0

*1

2.0

*1

U051 Adjusting the deflection in the paper 30/20/0/-20/-20/20

*1

U053 Setting the adjustment of the motor speed 0.3/0.7/-0.5/0.0/-0.1

-0.1/-0.3/0.0/0.0/0.5/0.0

*1

Mode setting U341 Specific paper feed location setting for printing function -

Other U901 Checking copy counts by paper feed locations -

*Initial setting for executing U020, *1: The item initialized for executing U020, *2: The item initialized for executing U021

3MH

1-3-15

(3) Contents of maintenance mode items

Maintenance

item No.

Description

U019

Displaying the ROM version
Description

Displays the part number of the ROM fitted to each PWB.

Purpose

To check the part number or to decide, if the newest version of ROM is installed.

Method

1. Press the start key. The ROM version are displayed.

2. Change the screen using the cursor up/down keys.

Completion

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

U030

Checking motor operation
Description

Drives each motor.

Purpose

To check the operation of each motor.

Method

1. Press the start key.

2. Select the motor to be operated using the cursor up/down keys.

3. Press the start key. The operation starts.

4. To stop operation, press the stop/clear key.

Completion

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

Display Description

MAIN Main ROM

ENGINE Engine ROM

LANG(St) Standard language ROM

LANG(Op) Optional language ROM

MAIN BOOT Boot of main ROM

PRINTER Printer ROM

NWS Optional network scanner ROM

DP Optional DP ROM

FINISHER Optional built-in finisher ROM

CASS2 First paper feeder ROM (standard for 22 ppm model)

CASS3 Second paper feeder ROM

CASS4 Third paper feeder ROM

Display Operation

MAIN Drive motor (DM) is turned ON

DRUM Drum motor (DRM) is turned ON

T1 Cassette drive motor 1 (CDM1) is turned ON

T2 Cassette drive motor 2 (CDM2) is turned ON

T3 Cassette drive motor 3 (CDM3) is turned ON

EJE1 Eject motor (EM) is turned ON (forward)

EJE2 Eject motor (EM) is turned ON (reverse)

3MH

1-3-16

U031

Checking switches for paper conveying
Description

Displays the on-off status of each paper detection switch on the paper path.

Purpose

To check if the switches for paper conveying operate correctly.

Method

1. Press the start key.

2. Turn each switch on and off manually to check the status.
When a switch is detected to be in the ON position, the display for that switch will be highlighted.

Completion

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

U032

Checking clutch operation
Description

Turns each clutch or solenoid on.

Purpose

To check the operation of each clutch or solenoid.

Method

1. Press the start key.

2. Select the clutch or solenoid to be operated using the cursor up/down keys.

3. Press the start key. The clutch or solenoid turns on for 1 s.

Completion

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

Maintenance

item No.

Description

Display Switches

EJE Eject switch (ESW)

RES Registration switch (RSW)

PF2 Cassette feed switch 1 (CFSW1)

PF3 Cassette feed switch 2 (CFSW2)

BRA Feedshift switch (FSSW)

DUP Duplex paper conveying switch (DUPPCSW) (option)

JOB Job eject switch (JBESW) (option)

Display Clutches and solenoid

PF1 Paper feed clutch (PFCL)

PFBYP MP solenoid (MPSOL)

REG Registration clutch (RCL)

DUP Duplex feed clutch (DUPFCL)

PF2 Cassette paper feed clutch 1 (CPFCL1)

PF3 Cassette paper feed clutch 2 (CPFCL2)

PF4 Cassette paper feed clutch 3 (CPFCL3)

3MH

1-3-17

U034

Adjusting the print start timing
Description

Adjusts the leading edge registration or center line.

Purpose

Make the adjustment if there is a regular error between the leading edges of the copy image and original.
Make the adjustment if there is a regular error between the center lines of the copy image and original.
Make the adjustment if there is a regular error between the trailing edges of the copy image and original.

Method

1. Press the start key.

2. Select the item to be adjusted using the cursor up/down keys. The setting screen for the selected item is
displayed.

Adjustment: Leading edge registration adjustment

1. Select the item to be adjusted using the cursor up/down keys.

2. Press the interrupt key.

3. Press the start key to output a test pattern.

4. Change the setting value using the cursor left/right keys.
For output example 1, decrease the value.
For output example 2, increase the value.

Figure 1-3-7

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

Caution

Check the copy image after the adjustment. If the image is still incorrect, perform the following adjustments in
maintenance mode.

Maintenance

item No.

Description

Display Description

ADJ. RCL ON TIMING Leading edge registration adjustment

ADJ. LSU ON TIMING Center line adjustment

ADJ. MGN REAR Trailing edge margin adjustment

Display Description Setting

range

Initial
setting

Change in
value per step

RCL ON Paper feed from cassette -5.0 to 10.0 2.8 0.1 mm

RCL BYP Paper feed from MP tray -5.0 to 10.0 0.0 0.1 mm

RCL T1 Paper feed from first paper feeder -5.0 to 10.0 0.0 0.1 mm

RCL T2 Paper feed from second paper feeder -5.0 to 10.0 0.0 0.1 mm

RCL T3 Paper feed from third paper feeder -5.0 to 10.0 0.0 0.1 mm

RCL DUP Duplex mode (second side) -5.0 to 10.0

0.8

0.1 mm

Correct image Output

example 1

Output

example 2

Leading edge registration (20 ± 1.0 mm)

U071

(See the service manual

for the machine.)

U066

(See the service manual

for the machine.)

U034

3MH

1-3-18

U034

Adjustment: Center line adjustment

1. Select the item to be adjusted using the cursor up/down keys.

2. Press the interrupt key.

3. Press the start key to output a test pattern.

4. Change the setting value using the cursor left/right keys.
For output example 1, decrease the value.
For output example 2, increase the value.

Figure 1-3-8

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

Caution

Check the copy image after the adjustment. If the image is still incorrect, perform the following adjustments in
maintenance mode.

Maintenance

item No.

Description

Display Description Setting

range

Initial
setting

Change in
value per step

LSU OUT Paper feed from cassette -7.0 to 10.0 -2.4 0.1 mm

LSU BYP Paper feed from MP tray -7.0 to 10.0 0.0 0.1 mm

LSU T1 Paper feed from first paper feeder -7.0 to 10.0 0.0 0.1 mm

LSU T2 Paper feed from second paper feeder -7.0 to 10.0 0.0 0.1 mm

LSU T3 Paper feed from third paper feeder -7.0 to 10.0 0.0 0.1 mm

LSU DUP Duplex mode (second side) -7.0 to 10.0 0.0 0.1 mm

Center line of printing (± 1.0 mm)

Correct image Output

example 1

Output

example 2

U072

(See the service manual

for the machine.)

U067

(See the service manual

for the machine.)

U034

3MH

1-3-19

U034

Adjustment: Trailing edge margin adjustment

1. Select [MGN REAR].

2. Press the interrupt key.

3. Press the start key to output a test pattern.

4. Change the setting value using the cursor left/right keys.
For output example, increase the value.

Figure 1-3-9

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

Completion

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

Maintenance

item No.

Description

Display Description Setting

range

Initial
setting

Change in
value per step

MGN REAR Trailing edge margin adjustment -4.0 to 10.0 2.0 0.1 ms

Correct image

Output

example

Trailing edge margin

3MH

1-3-20

U051

Adjusting the deflection in the paper
Description

Adjusts the deflection in the paper.

Purpose

Make the adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper
is Z-folded.

Adjustment

1. Press the start key.

2. Select the item to be adjusted using the cursor up/down keys.

3. Press the interrupt key.

4. Place an original and press the start key to make a test copy.

5. Change the setting value using the cursor left/right keys.
For output example 1, increase the value.
For output example 2, decrease the value.
The greater the value, the larger the deflection; the smaller the value, the smaller the deflection.

Figure 1-3-10

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

Completion

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

Maintenance

item No.

Description

Display Description Setting

range

Initial
setting

PF1 Paper feed from cassette -50 to 127 30

BYPASS Paper feed from MP tray -50 to 127 20

PF2 Paper feed from first paper feeder -50 to 127 0

PF3 Paper feed from second paper feeder -50 to 127 -20

PF4 Paper feed from third paper feeder -50 to 127 -20

DUPLEX Duplex mode (second side) -50 to 127 20

Original Copy

example 1

Copy

example 2

3MH

1-3-21

U053

Setting the adjustment of the motor speed
Description

Performs fine adjustment of the speeds of the motors.

Purpose

To adjust the speed of the respective motors when the magnification is not correct.

Method

1. Press the start key.

2. Select the item to be adjusted using the cursor up/down keys.

Adjustment

1. Press the interrupt key.

2. Press the start key to output an A3/Ledger VTC pattern.

Figure 1-3-11

3. Change the setting value using the cursor left/right keys.
A: Drive motor speed adjustment

Increasing the setting makes the image longer in the auxiliary scanning direction, and decreasing it
makes the image shorter in the auxiliary scanning direction.

B: Polygon motor speed adjustment

Increasing the setting makes the image shorter in the main scanning direction, and decreasing it
makes the image longer in the main scanning direction.

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

Completion

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

Maintenance

item No.

Description

Display Description Setting

range

Initial
setting

MAIN Drive motor speed adjustment -5.0 to 5.0 0.3

POLY Polygon motor speed adjustment -5.0 to 5.0 0.7

EJE Eject motor speed adjustment -5.0 to 5.0 -0.5

DRUM Drum motor speed adjustment -5.0 to 5.0 0.0

BYP Motor speed adjustment

(for paper feed from MP tray)

-5.0 to 5.0 -0.1

CAS Motor speed adjustment

(for paper feed from paper feeder)

-5.0 to 5.0 -0.1

DUP Motor speed adjustment (for duplex mode) -5.0 to 5.0 -0.3

EJE2 Eject motor speed

(optional ejection correction value in the case of
paper size of A3, B4 and Ledger)

-5.0 to 5.0 0.0

EJE3 Eject motor speed

(optional ejection correction value in the case of
paper size other than those above)

-5.0 to 5.0 0.0

EJE4 Eject motor speed

(ejection motor correction value at the time of duplex
inner ejection)

0.0 to 5.0 0.5

DF Paper conveying motor speed adjustment

(for optional built-in finisher)

-4.0 to 4.0 0.0

Correct values for an A3/Ledger output are:
A = 300

± 1.0 mm

B = 270

± 1.0 mm

3MH

1-3-22

U341

Specific paper feed location setting for printing function
Description

Sets a paper feed location specified for printer output.

Purpose

To use a paper feed location only for printer output.
A paper feed location specified for printer output cannot be used for copy output.

Setting

1. Press the start key.

2. Select the paper feed location for the printer using the cursor up/down keys.

3. Change the setting using the cursor left/right keys.
0: OFF/1: ON

4. Press the start key. The setting is set.

Completion

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

U901

Checking copy counts by paper feed locations
Description

Displays and clears copy counts by paper feed locations.

Purpose

To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts.

Method

1. Press the start key. The counts by paper feed locations are displayed.

2. Change the screen using the cursor left/right keys.

When an optional paper feed device is not installed, the corresponding count is not displayed.

Clearing

1. Select the count to be cleared using the cursor up/down keys.
However, PF2, 3, and 4 are displayed only and cannot be cleared.

2. Press the start key. The count is cleared.

Completion

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

Maintenance

item No.

Description

Display Description

PF1 Cassette

PF2 First paper feeder

PF3 Second paper feeder

PF4 Third paper feeder

Display Paper feed locations

BYP MP tray

PF1 Cassette

PF2 First paper feeder

PF3 Second paper feeder

PF4 Third paper feeder

DUP Duplex section

3MH

1-4-1

1-4 Troubleshooting

1-4-1 Paper misfeed detection

(1) Paper misfeed indication

When a paper misfeed occurs, the machine immediately stops copying and displays the jam location on the operation
panel.
Paper misfeed detection can be reset by opening and closing the cassette left cover to turn safety switch off and on.

(2) Paper misfeed detection conditions

Figure 1-4-1

CFSW1

CFSW2

CPFCL1

CPFCL2

CPFCL3

3MH

1-4-2

Section Description Conditions Specified time

Paper
feed
section

12
No paper feed from first
paper feeder

The registration switch (RSW) does not turn on within the
specified time of cassette paper paper feed clutch 1
(CPFCL1) turning on and cannot be detected at the same
timing even after retry.

2290 ms

13
No paper feed from
second paper feeder

Cassette feed switch 1 (CFSW1) does not turn on within
the specified time of cassette paper paper feed clutch 2
(CPFCL2) turning on and cannot be detected at the same
timing even after retry.

1953 ms

14
No paper feed from
third paper feeder

Cassette feed switch 2 (CFSW2) does not turn on within
the specified time of cassette paper paper feed clutch 3
(CPFCL3) turning on and cannot be detected at the same
timing even after retry.

1953 ms

15
Misfeed in vertical
paper conveying sec­tion 1

The registration switch (RSW) does not turn on within
specified time of cassette feed switch 1 (CFSW1) turning
on.

2243 ms

Cassette feed switch 1 (CFSW1) does not turn off within
specified time of cassette feed switch 2 (CFSW2) turning
on.

1916 ms

Cassette feed switch 1 (CFSW1) does not turn off within
specified time of cassette feed switch 2 (CFSW2) turning
off.

1916 ms

Left cover is opened in prior to the cassette feed switch 1
(CFSW1) is turned off.

-

16
Misfeed in vertical
paper conveying sec­tion 2

Cassette feed switch 1 (CFSW1) does not turn on within
specified time of cassette feed switch 2 (CFSW2) turning
on.

1916 ms

Left cover is opened in prior to the cassette feed switch 2
(CFSW2) is turned off.

-

22
Multiple sheets in first
paper feeder

The registration switch (RSW) does not turn off within
specified time of its turning on.

5907 ms

The registration switch (RSW) does not turn off within the
specified time of cassette paper feed clutch 1 (CPFCL1)
turning on.

2290 ms

23
Multiple sheets in sec­ond paper feeder

Cassette feed switch 1 (CFSW1) does not turn off within
specified time of its turning on.

5907 ms

Cassette feed switch 1 (CFSW1) does not turn off within
the specified time of cassette paper feed clutch 2
(CPFCL2) turning on.

1953 ms

24
Multiple sheets in third
paper feeder

Cassette feed switch 2 (CFSW2) does not turn off within
specified time of its turning on.

5907 ms

Cassette feed switch 2 (CFSW2) does not turn off within
the specified time of cassette paper feed clutch 3
(CPFCL3) turning on.

1953 ms

3MH

1-4-3

(3) Paper misfeeds

Problem

Causes/check procedures

Corrective measures

(1)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from first paper
feeder).
Jam code 12

Paper is extremely curled. Change the paper.

Check if the paper feed pul­ley, separation pulley or for­warding pulley is deformed.

Check visually and replace any deformed pulley.

Broken registration switch
actuator.

Check visually and replace switch.

Defective registration
switch.

Run maintenance item U031 and turn registration switch on and
off manually. Replace the switch if indication of the corresponding
switch is not light.

Check if the cassette paper
feed clutch 1 malfunctions.

Run maintenance item U032 and select the cassette paper feed
clutch 1 to be turned on and off. Check the status and remedy if
necessary.

Electrical problem with the
cassette paper feed clutch

1.

Check (see page 1-4-9).

(2)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from second
paper feeder).
Jam code 13

Paper is extremely curled. Change the paper.

Check if the paper feed pul­ley, separation pulley or for­warding pulley is deformed.

Check visually and replace any deformed pulley.

Broken cassette feed
switch 1 actuator.

Check visually and replace switch.

Defective cassette feed
switch 1.

Run maintenance item U031 and turn cassette feed switch 1 on
and off manually. Replace the switch if indication of the corre­sponding switch is not light.

Check if the cassette paper
feed clutch 2 malfunctions.

Run maintenance item U032 and select the cassette paper feed
clutch 2 to be turned on and off. Check the status and remedy if
necessary.

Electrical problem with the
cassette paper feed clutch

2.

Check (see page 1-4-9).

(3)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from third paper
feeder).
Jam code 14

Paper is extremely curled. Change the paper.

Check if the paper feed pul­ley, separation pulley or for­warding pulley is deformed.

Check visually and replace any deformed pulley.

Broken cassette feed
switch 2 actuator.

Check visually and replace switch.

Defective cassette feed
switch 2.

Run maintenance item U031 and turn cassette feed switch 2 on
and off manually. Replace the switch if indication of the corre­sponding switch is not light.

Check if the cassette paper
feed clutch 3 malfunctions.

Run maintenance item U032 and select the cassette paper feed
clutch 3 to be turned on and off. Check the status and remedy if
necessary.

Electrical problem with the
cassette paper feed clutch

3.

Check (see page 1-4-9).

3MH

1-4-4

(4)
A paper jam in the
paper feed section is
indicated during
copying (misfeed in
vertical paper con­veying section 1).
Jam code 15

Broken registration switch,
cassette feed switch 1 or 2
actuator.

Check visually and replace switch.

Defective switch. Run maintenance item U031 and turn switch on and off manually.

Replace the switch if indication of the corresponding switch is not
light.
Registration switch, cassette feed switch 1, 2

Check if the paper feed
clutch, cassette paper feed
clutch 1, 2 or 3 malfunc­tions.

Run maintenance item U032 and select the clutch to be turned on
and off. Check the status and remedy if necessary.

Electrical problem with the
paper feed clutch, cassette
paper feed clutch 1, 2 or 3.

Check (see page 1-4-9).

Defective feed pulleys or
feed rollers.

Check visually and replace.

(5)
A paper jam in the
paper feed section is
indicated during
copying (misfeed in
vertical paper con­veying section 2).
Jam code 16

Broken cassette feed
switch 1 or 2 actuator.

Check visually and replace switch.

Defective switch. Run maintenance item U031 and turn switch on and off manually.

Replace the switch if indication of the corresponding switch is not
light.
Cassette feed switch 1, 2

Check if the paper feed
clutch, cassette paper feed
clutch 1 or 2 malfunctions.

Run maintenance item U032 and select the clutch to be turned on
and off. Check the status and remedy if necessary.

Electrical problem with the
paper feed clutch, cassette
paper feed clutch 1 or 2.

Check (see page 1-4-9).

Defective feed pulleys or
feed rollers.

Check visually and replace.

(6)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in first paper
feeder).
Jam code 22

Deformed guides along the
paper conveying path.

Check visually and replace.

Broken registration switch
actuator.

Check visually and replace switch.

Defective registration
switch.

Run maintenance item U031 and turn registration switch on and
off manually. Replace the switch if indication of the corresponding
switch is not light.

Check if the cassette paper
feed clutch 1 malfunctions.

Run maintenance item U032 and select the cassette paper feed
clutch 1 to be turned on and off. Check the status and remedy if
necessary.

Electrical problem with the
cassette paper feed clutch

1.

Check (see page 1-4-9).

Check if the right and left
registration rollers contact
each other.

Check visually and replace.

Problem

Causes/check procedures

Corrective measures

3MH

1-4-5

(7)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in second
paper feeder).
Jam code 23

Deformed guides along the
paper conveying path.

Check visually and replace.

Broken cassette feed
switch 1 actuator.

Check visually and replace switch.

Defective cassette feed
switch 1.

Run maintenance item U031 and turn cassette feed switch 1 on
and off manually. Replace the switch if indication of the corre­sponding switch is not light.

Check if the cassette paper
feed clutch 2 malfunctions.

Run maintenance item U032 and select the cassette paper feed
clutch 2 to be turned on and off. Check the status and remedy if
necessary.

Electrical problem with the
cassette paper feed clutch

2.

Check (see page 1-4-9).

(8)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in third paper
feeder).
Jam code 24

Deformed guides along the
paper conveying path.

Check visually and replace.

Broken cassette feed
switch 2 actuator.

Check visually and replace switch.

Defective cassette feed
switch 2.

Run maintenance item U031 and turn cassette feed switch 2 on
and off manually. Replace the switch if indication of the corre­sponding switch is not light.

Check if the cassette paper
feed clutch 3 malfunctions.

Run maintenance item U032 and select the cassette paper feed
clutch 3 to be turned on and off. Check the status and remedy if
necessary.

Electrical problem with the
cassette paper feed clutch

3.

Check (see page 1-4-9).

Problem

Causes/check procedures

Corrective measures

3MH

1-4-6

1-4-2 Self-diagnosis

(1) Self-diagnostic function (operation panel is a 7-segment type)

When an unexpected error is detected for some reason, a system error (A call error) will be indicated. After a system error
(A call error) is indicated, the error can be cleared by turning the main power switch off and then on. If a system error (A
call error) occurs frequently, a fault may have occurred. Check the details of the C call to take proper measures.

(2) Self diagnostic codes (operation panel is a 7-segment type)

Code Contents

Remarks

Causes Check procedures/corrective measures

A0420 First paper feeder communication

problem

Communication fails five times succes­sively.

First paper feeder
installed incor­rectly.

Check the installation state of the first paper
feeder and adjust it if it is not properly
installed.

Defective PWB. Replace the main/engine PWB or cassette

main PWB and check for correct operation.

A0500 Second paper feeder communication

problem

Communication fails five times succes­sively.

Second paper
feeder installed
incorrectly.

Check the installation state of the second
paper feeder and adjust it if it is not properly
installed.

Defective PWB. Replace the main/engine PWB or cassette

main PWB and check for correct operation.

A0510 Third paper feeder communication

problem

Communication fails five times succes­sively.

Third paper feeder
installed incor­rectly.

Check the installation state of the third paper
feeder and adjust it if it is not properly
installed.

Defective PWB. Replace the main/engine PWB or cassette

main PWB and check for correct operation.

3MH

1-4-7

(3) Self-diagnostic function (operation panel is an LCD type)

When an unexpected error is detected for some reason, a system error will be indicated. After a system error is indicated,
the error can be cleared by turning the main power switch off and then on. If the error is detected continuously, however,
perform the operation shown in Table 1-4-1. If a system error occurs frequently, a fault may have occurred. Check the
details of the C call to take proper measures.

Table 1-4-1

(4) Self diagnostic codes (operation panel is an LCD type)

System error Contents Operation

0420 First paper feeder communication problem

System error

→ service call

0500 Second paper feeder communication problem

System error

→ service call

0510 Third paper feeder communication problem

System error

→ service call

Code Contents

Remarks

Causes Check procedures/corrective measures

C0420 First paper feeder communication

problem

Communication fails five times succes­sively.

First paper feeder
installed incor­rectly.

Check the installation state of the first paper
feeder and adjust it if it is not properly
installed.

Defective PWB. Replace the engine PWB or cassette main

PWB and check for correct operation.

C0500 Second paper feeder communication

problem

Communication fails five times succes­sively.

Second paper
feeder installed
incorrectly.

Check the installation state of the second
paper feeder and adjust it if it is not properly
installed.

Defective PWB. Replace the engine PWB or cassette main

PWB and check for correct operation.

C0510 Third paper feeder communication

problem

Communication fails five times succes­sively.

Third paper feeder
installed incor­rectly.

Check the installation state of the third paper
feeder and adjust it if it is not properly
installed.

Defective PWB. Replace the engine PWB or cassette main

PWB and check for correct operation.

3MH

1-4-8

1-4-3 Image formation problems

(1) The leading edge of the image is consistently misaligned with the original.

(2) The leading edge of the image is sporadically misaligned with the original.

(3) Image center does not align with the original center.

Copy example Causes Check procedures/corrective measures

Misadjusted leading edge registration. Run maintenance mode U034 to readjust the leading edge

registration (see page 1-3-6, 17).

Copy example Causes Check procedures/corrective measures

Paper feed clutch, MP solenoid or
registration clutch installed or operat­ing incorrectly.

Check the installation position and operation of each clutch
or solenoid. If any of them operates incorrectly, replace it.

Copy example Causes Check procedures/corrective measures

Misadjusted image center line. Run maintenance item U034 to readjust the center line of

image printing (see page 1-3-7, 18).

Original is not placed correctly. Place the original correctly.

3MH

1-4-9

1-4-4 Electric problems

Troubleshooting to each failure must be in the order of the numbered symptoms.

Problem Causes Check procedures/corrective measures

(1)
The paper feeder
does not operate
when the main power
switch is turned on.

1. Poor contact in the con­nector terminals.

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

2. Defective cassette left
cover switch.

Check for continuity across the contacts. If none, replace the cas­sette left cover switch.

(2)
The cassette drive
motor does not oper­ate.

1. Poor contact in the con­nector terminals.

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

2. Defective drive transmis­sion system.

Check if the rollers and gears rotate smoothly. If not, grease the
bushings and gears. Check for broken gears and replace if any.

3. Defective cassette drive
motor.

Run maintenance item U030 and check if the cassette drive motor
operates. If not, replace the cassette drive motor.

4. Defective cassette main
PWB.

Run maintenance item U030 and check if the cassette drive motor
operates. If not, replace the cassette main PWB.

(3)
The cassette paper
feed clutch does not
operate.

1. Broken clutch coil. Check for continuity across the coil. If none, replace the clutch.

2. Poor contact in the con­nector terminals.

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

3. Defective cassette main
PWB.

Run maintenance item U032 and check if following terminals on
the cassette main PWB goes low. If not, replace the cassette main
PWB.
Cassette paper feed clutch: YC8-2 on the cassette main PWB

(4)
The message
requesting paper to
be loaded is shown
when paper is
present on the cas­sette.

1. Poor contact in the con­nector terminals of cas­sette paper switch.

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

2. Defective cassette paper
switch.

If the level of following terminal on PWB does not go low when the
switch is turned on and off, replace the switch.
Cassette paper switch: YC5-2 on the cassette main PWB

(5)
The size of paper on
the cassette is not
displayed correctly.

1. Poor contact in the con­nector terminals of cas­sette paper size width
switch or cassette paper
size length switch.

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

2. Defective cassette paper
size width switch or cas­sette paper size length
switch.

If the level of following terminal on PWB does not go low when the
switch is turned on and off, replace the switch.
Cassette paper size width switch: YC4-4 on the cassette main
PWB
Cassette paper size length switch: YC4-5, 6, 8 on the cassette
main PWB

(6)
A paper jam in the
paper feeder is indi­cated when the main
power switch is
turned on.

1. A piece of paper torn
from copy paper is
caught around cassette
feed switch 1 or 2.

Check visually and remove it, if any.

2. Defective switch. Run maintenance item U031 and turn switch on and off manually.

Replace the switch if indication of the corresponding switch is not
light.
Cassette feed switch1, 2

3MH

1-4-10

(7)
The message
requesting cover to
be closed is dis­played when the cas­sette left cover is
closed.

1. Poor contact in the con­nector terminals of cas­sette left cover safety
switch.

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

2. Defective cassette left
cover safety switch.

Check for continuity across each switch. If there is no continuity
when the switch is on, replace it.

(8)
Others.

1. Wiring is broken, shorted
or makes poor contact.

Check for continuity. If none, repair.

Problem Causes Check procedures/corrective measures

3MH

1-4-11

1-4-5 Mechanical problems

Problem Causes/check procedures Corrective measures

(1)
No primary paper feed.

Check if the surfaces of the following rollers or
pulleys are dirty with paper powder:
cassette forwarding pulley, cassette paper
feed pulley, cassette separation pulley, feed
roller and feed pulley.

Clean with isopropyl alcohol.

Check if the upper/lower forwarding pulleys,
cassette forwarding pulley, cassette paper
feed pulley, cassette separation pulley is
deformed.

Replace (see page 1-5-3, 5).

Electrical problem with the following clutches
and solenoid:
cassette paper feed clutch.

See page 1-4-9.

(2)
Skewed paper feed.

Width guide in a cassette installed incorrectly. Check the width guide visually and correct

or replace if necessary.

Deformed width guide in a cassette. Check visually and replace any deformed

guide.

(3)
Multiple sheets of paper
are fed at one time.

Paper is extremely curled. Change the paper.

Check if the cassette separation pulley is
worn.

Replace the cassette separation pulley if it is
worn (see page 1-5-3).

(4)
Paper jams.

Paper is extremely curled. Change the paper.

Deformed guides along the paper conveying
path.

Check visually and replace any deformed
guides.

(5)
Abnormal noise is heard.

Check if the pulleys, rollers and gears operate
smoothly.

Grease the bearings and gears.

Check if the following clutches and solenoid
are installed correctly:
cassette paper feed clutch.

Correct.

3MH

1-4-12

This page is intentionally left blank.

3MH

1-5-1

1-5 Assembly and Disassem bly

1-5-1 Precautions for assembly and disassembly

(1) Precautions

Before starting disassembly, press the Power key on the operation panel to off. Make sure that the Power lamp is off
before turning off the main power switch. And then unplug the power cable from the wall outlet.
Turning off the main power switch before pressing the power key to off may cause damage to the equipped hard disk.
When handling PWBs (printed wiring boards), do not touch parts with bare hands.
The PWBs are susceptible to static charge.
Do not touch any PWB containing ICs with bare hands or any object prone to static charge.
When removing the hook of the connector, be sure to release the hook.
Take care not to get the cables caught.
To reassemble the parts, use the original screws. If the types and the sizes of screws are not known, refer to the PARTS
LIST.

3MH

1-5-2

1-5-2 Paper feed section

(1) Detaching and refitting the feed roller

Follow the procedure below to replace the feed roller.

Procedure

1. Open the cassette left cover.

2. Remove the stop ring from rear side of the
feed roller and slide the bush toward the
inside.

3. Lift the rear of the feed roller upward. Slide
the feed roller toward the rear side and
remove the roller from the paper feeder.

Figure 1-5-1

4. Remove the gear, spring pin and two
bushes from the feed roller.

5. Replace the feed roller and refit all the
removed parts.

Figure 1-5-2

Feed roller

Stop ring

Bush

Feed roller

Bush

Gear

Spring pin

Bush

3MH

1-5-3

(2) Detaching and refitting the cassette separation pulley

Follow the procedure below to replace the cassette separation pulley.

Procedure

1. Pull out the cassette.

2. Remove the screw and remove the lower
paper feed unit.

Figure 1-5-3

3. Release two hooks and remove the separa­tion pulley unit from the lower paper feed
unit.

Figure 1-5-4

Lower paper feed unit

Screw

Hook

Hook

Separation pulley unit

Separation pulley unit

Separation pulley unit

Lower paper feed unit

3MH

1-5-4

4. Remove the separation pulley shaft from the
separation pulley unit.

5. Remove the cassette separation pulley from
the separation pulley shaft.

6. Replace the cassette separation pulley and
refit all the removed parts.

Figure 1-5-5

Cassette separation pulley

Separation pulley shaft

3MH

1-5-5

(3) Detaching and refitting the cassette forwarding pulley and cassette paper feed pulley

Follow the procedure below to replace the cassette forwarding pulley and cassette paper feed pulley.

Procedure

1. Remove the feed roller (see 1-5-2).

2. Remove the lower paper feed unit (see 1-5-

3).

3. Remove the screw and the pin and then
remove the cassette rear cover.

Figure 1-5-6

4. Remove the connector of the cassette paper
feed clutch.

5. Remove the stop ring and remove the cas­sette paper feed clutch.

6. Remove the stop ring and the bush.

Figure 1-5-7

Screw

Pin

Cassette rear cover

Cassette paper
feed clutch

Stop ring

Stop ring

Bush

3MH

1-5-6

7. Remove the screw and remove the upper
paper feed unit.

Figure 1-5-8

8. Remove the springs, stop ring and bush and
then remove the shaft holder from the upper
paper feed unit.

Figure 1-5-9

Screw

Upper paper feed unit

Upper paper feed unit

Stop ring

Bush

Spring

Spring

Shaft holder

3MH

1-5-7

9. Remove the cassette forwarding pulley from
the upper paper feed unit.

10. Remove the paper feed pulley shaft from the
upper paper feed unit.

11. Remove the collar and the cassette paper
feed pulley from the upper paper feed shaft.

12. Replace the cassette forwarding pulley and
cassette paper feed pulley and refit all the
removed parts.

Figure 1-5-10

Cassette forwarding pulley

Paper feed pulley shaft

Cassette paper feed pulley

Collar

3MH

1-5-8

This page is intentionally left blank.

3MH

2-1-1

2-1 Mechanical Construction

2-1-1 Mechanical construction

The paper feeder feeds paper from either of its cassette to the machine.
Cassette can hold up to 300 (80 g/m2) sheets of paper. Paper is fed from the cassette by the rotation of the cassette for­warding pulley and cassette paper feed pulley. The cassette separation pulley prevents multiple sheets from being fed at
one time, via the torque limiter.

Figure 2-1-1 Paper feeder

8

7

65

2

1

4

3

(1) Cassette forwarding pulley
(2) Cassette paper feed pulley
(3) Cassette separation pulley
(4) Cassette operation plate
(5) Feed pulley
(6) Feed roller
(7) Cassette feed switch (CFSW)
(8) Cassette paper switch (CPSW)

3MH

2-1-2

Figure 2-1-2 Paper feeder block diagram

CPSW

CFSW

CLT_RE

FEED

YC4-5,6,8

YC5-2

YC4-4

YC8-2

YC6-2

YC9-2,3,4,5

YC3 YC9

CMPWB

EPWB

PE

CPWSW CPLSW

SIZEA

SIZEB,SIZEC,SIZED

CPFCL

MOTA,MOTB,

MOTA-,MOTAB-

CDM

3MH

2-2-1

2-2 Electrical Parts Layout

2-2-1 Electrical parts layout

(1) PWBs

Figure 2-2-1 PWBs

1. Cassette main PWB (CMPWB).................... Controls electrical components of the paper feeder.

2. Cassette heater PWB (CHPWB).................. Relays the cassette heater power.

1

2

Machine front

Machine inside

Machine rear

3MH

2-2-2

(2) Switches and sensors

Figure 2-2-2 Switches and sensors

1. Cassette left cover safety switch

(CLCSSW) ................................................... Breaks the safety circuit when the cassette left cover is opened.

2. Cassette feed switch (CFSW)...................... Detects a paper misfeed.

3. Cassette paper switch (CPSW) ................... Detects the presence of paper in the cassette.

4. Cassette paper size length switch

(CPLSW)...................................................... Detects the length of paper in the cassette.

5. Cassette paper size width switch

(CPWSW) .................................................... Detects the width of paper in the cassette.

1

2

3

5

4

Machine front

Machine inside

Machine rear

3MH

2-2-3

(3) Others

Figure 2-2-3 Others

1. Cassette drive motor (CDM) ........................ Drives the paper feeder.

2. Cassette paper feed clutch (CPFCL) ........... Primary paper feed from the cassette.

3. Cassette heater (CH)

*

.................................. Dehumidifies the cassette section.

*: Option

1

2

3

Machine front

Machine inside

Machine rear

3MH

2-2-4

This page is intentionally left blank.

3MH

2-3-1

2-3 Operation of the PWBs

2-3-1 Cassette main PWB

Figure 2-3-1 Cassette main PWB silk-screen diagram

YC2

YC1

YC3

YC7

U2

YC9

YC8

YC4YC5

SW1

YC6

1

1

A1

1

1

1

1

1

1

2

3

4

8

3

2

5

7

A13

B13B1

2

2

3MH

2-3-2

Connector Pin No. Signal I/O Voltage Description

YC1 1 24V O 24 V DC 24 V DC power output to paper feeder

Connected
to the paper
feeder

2PGND -- Ground

YC2 1 +24V1 I 24 V DC 24 V DC power input from EPWB

Connected
to the
engine PWB

2PGND -- Ground

YC3 A1 5V - - Not used

Connected
to the
engine PWB
and paper
feeder

A2 SGND - - Not used

A3 5V I 5 V DC 5 V DC power input from EPWB

A4 SGND - - Ground

A5 5V I 5 V DC 5 V DC power input from EPWB

A6 SGND - - Ground

A7 SDI I 0/5 V DC (pulse) Paper feeder serial communication data signal

A8 SDO O Analog Paper feeder serial communication data signal

A9 SCLK I 0/5 V DC (pulse) Paper feeder clock signal

A10 SEL0 I 0/5 V DC Paper feeder select signal 0

A11 SEL1 I 0/5 V DC Paper feeder select signal 1

A12 SEL2 I 0/5 V DC Paper feeder select signal 2

A13 RDY O 0/5 V DC Paper feeder ready signal

B1 RDY I 0/5 V DC Paper feeder ready signal

B2 SEL2 O 0/5 V DC Paper feeder select signal 2

B3 SEL1 O 0/5 V DC Paper feeder select signal 1

B4 SEL0 O 0/5 V DC Paper feeder select signal 0

B5 SCLK O 0/5 V DC (pulse) Paper feeder clock signal

B6 SDO I 0/5 V DC (pulse) Paper feeder serial communication data signal

B7 SDI O 0/5 V DC (pulse) Paper feeder serial communication data signal

B8 SGND - - Ground

B9 5V O 5 V DC 5 V DC power output to paper feeder

B10 SGND - - Ground

B11 5V O 5 V DC 5 V DC power output to paper feeder

B12 SGND - - Not used

B13 5V - - Not used

YC4 1SGND -- Ground

Connected
to the cas­sette left
cover safety
switch, cas­sette paper
size width
switch and
cassette
paper size
length
switch

2 COVOPN O 0/24 V DC CLCSSW: On/Off

3SGND -- Ground

4 SIZEA I 0/5 V DC CPWSW: On/Off

5 SIZEB I 0/5 V DC CPLSW: On/Off

6 SIZEC I 0/5 V DC CPLSW: On/Off

7SGND -- Ground

8 SIZED I 0/5 V DC CPLSW: On/Off

3MH

2-3-3

YC5 1SGND -- Ground

Connected
to the cas­sette paper
switch

2 PE I 0/5 V DC CPSW: On/Off

3 5V O 5 V DC 5 V DC power output to CPSW

4 NC - - Not used

YC6 1SGND -- Ground

Connected
to the cas­sette feed
switch

2 FEED I 0/5 V DC CFSW: On/Off

3 5V O 5 V DC 5 V DC power output to CFSW

YC8 1 24V O 24 V DC 24 V DC power output to CPFCL

Connected
to the cas­sette paper
feed clutch

2 CLT_RE O 0/24 V DC CPFCL: On/Off

YC9 1 24V O 24 V DC 24 V DC power output to CDM

Connected
to the cas­sette drive
motor

2 MOTA O 0/24 V DC (pulse) CDM drive control signal

3 MOTB O 0/24 V DC (pulse) CDM drive control signal

4 MOTA- O 0/24 V DC (pulse) CDM drive control signal

5 MOTB- O 0/24 V DC (pulse) CDM drive control signal

Connector Pin No. Signal I/O Voltage Description

3MH

2-3-4

This page is intentionally left blank.

3MH

2-4-1

2-4 Appendixes

List of maintenance parts

Periodic maintenance procedures

Maintenance part name

Part No.

Alternative

part No.

Fig.

No.

Ref.

No.

Name used in service manual Name used in parts list

Cassette paper feed pulley PULLEY,PAPER FEED 2AR07220 - 1 2

Cassette separation pulley PULLEY,SEPARATION 2AR07230 - 2 4

Cassette forwarding pulley PULLEY,LEADING FEED 2AR07240 - 1 3

Feed roller PARTS ROLLER FEED 303HW06021 3HW06021 1 22

Feed pulley PULLEY FEED 2BL16080 - 2 5

Section

Maintenance
part/location

Method

Maintenance

cycle

Points and cautions Page

Paper feed
section

Cassette paper feed
pulley

Check or
replace

User call Clean it with alcohol if it is dirty.

Replace it if any problem such as
flawed or worn state is found.

P. 1 -5 - 5

Cassette separation
pulley

Check or
replace

User call Clean it with alcohol if it is dirty.

Replace it if any problem such as
flawed or worn state is found.

P. 1 -5 - 3

Cassette forwarding
pulley

Check or
replace

User call Clean it with alcohol if it is dirty.

Replace it if any problem such as
flawed or worn state is found.

P. 1 -5 - 5

Feed roller Check or

replace

User call Clean it with alcohol if it is dirty.

Replace it if any problem such as
flawed or worn state is found.

P. 1 -5 - 2

Feed pulley Check or

clean

User call Clean it with alcohol if it is dirty.

3MH

2-4-2

Wiring diagram

PAPER FEEDER

CMPWB

A1A2A3A4A5A6A7A8A9

A10

A11

A12

A13

YC1

4

3

2

1

CH

CHPWB

1

2

1

2

YC2

24V

PGND

1

2

1

2

YC1

24V

PGND

YC3

4

3

2

1

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

YC3 YC2

1234567

8

YC4

SGND

COVOPN

SGND

SIZEA

SIZEB

SIZEC

SGND

SIZED

123

4

YC5

SGND

PE

5V

NC

123

SGND

FEED

5V

YC6

1

2

12345

YC9

YC8

24V

CLT_RE

24V

MOTA

MOTB

MOTA-

MOTB-

16

15

13

12

1

2

3

4

5

6

7

8

9

10

11

PGND

+24V1

+5V2PF

SGND

5V2PF

SGND

LOPSDO

LOPSDI

LOPSCLK

LOPSEL0

LOPSEL1

LOPSEL2

LOPSRDY

5V

SGND5VSGND5VSGND

SDI

SDO

SCLK

SEL0

SEL1

SEL2

RDY

16

15

13

12

1

2

3

4

5

6

7

8

9

10

11

PGND

+24V1

+5V2PF

SGND

5V2PF

SGND

LOPSDO

LOPSDI

LOPSCLK

LOPSEL0

LOPSEL1

LOPSEL2

LOPSRDY

B1B2B3B4B5B6B7B8B9

B10

B11

B12

B13

RDY

SEL2

SEL1

SEL0

SCLK

SDO

SDI

SGND5VSGND5VSGND

5V

1234567

8

123

4

123

1

2

12345

CLCSSW

2

1

SGND

OPEN

CPWSW

2

1

SGND

SIZE_A

CPLSW

432

1

SIZE_B

SIZE_C

SGND

SIZE_D

CPSW

321

SGNDPE5V

CFSW

321

SGND

FEED

5V

CPFCL

CDM

321

321

432

1

2

1

2

1

123456789

101112

13

123456789

101112

13