Ricoh M5 Service manual

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RICOH M5

S E R V I C E M A N U A L

O P E R A T I N G

I N S T R U C T I O N S

May, 25, 1985

INTRODUCTION

The Ricoh M5 is a desktop plain paper copier which is carefully manufactured to exacting standards of high performance. It consistently yields high contrast copies with a superior finish.

This

manual contains detailed instructions on the opera-

tion

and

care of

the

M5. TO get the

maximum

versatility

from

this

copier,

all

operators should

carefully

read and

follow the instructions in this manual. Please keep this manual in the holder provided on the machine.

MAJOR FEATURES

1 . Copies everything from business cards to A4 (8-1/2” x 1 l“)sized documents.

2 . Easy-to-maintain cartridge design.

3. Black, blue, green and red color application.

4 . Lightweight design for easy transport.

5 . “Clam-shell” design makes misfeeds easy to clear.

6 . Simple and reliable operation.

7 . Inner cassette makes the copier compact.

May, 25, 1985

CONTENTS

1. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-1. Unpacking procedure . . . . . . . . . . . . . . . . . . . 1 1-2. Installation procedure . . . . . . . . . . . . . . . . . . . 2 1-3. Installation requirements . . . . . . . . . . . . . . . . 6

2. GUIDE TO COMPONENTS . . . . . . . . . . . . . 9 2-1. Overall machine layout . . . . . . . . . . . . . . . . . 9 2-2. operation panel . . . . . . . . . . . . . . . . . . . . . . ...10 2-3. Operator controls . . . . . . . . . . . . . . . . . . . . . ..ll

3. COPYING 0 . . . . . . . . . . . . . . . . . . . . . . . . .. < . . . . ...13 3-1 . Starting the copier . . . . . . . . . . . . . . . . . . . . . . 13 3-2 . Normal copying . . . . . . . . . . . . . . . . . . . . . ...13 3-3 . Manual feed copying . . . . . . . . . . . . . . . . . ...14 3-4 . Two-sided copying . . . . . . . . . . . . . . . . . . ...15 3-5 . Color copying . . . . . . . . . . . . . . . . . . . . . . . ...16

4 . REPLENISHING SUPPLIES .

. . . . . . . . . . . . . . . . . ...17

4-1. Loading paper...........

*.. . . . . . . . . . . ...17

4-2. Adding toner . . . . . . .

. . . . . . . . . . . . . . . . . ...19

5 . REPLACING THE MASTER UNIT . . . . . . . . . . . . . . . 21

6 . TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . ...23 6-1. Clearing misdeeds . . . . . . . . . . . . . . . . . . . . ...23 6-2. Troubleshooting guide . . . . . . . . . . . . . . . . . . 24 6-3. Service codes . . . . . . . . . . . . . . . . . . . . . . . ...27

7’IAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . ...28

8TRANSPORTING THE COPIER . . . . . . . . . . . . . . ...29

9 DO’S AND DON’TS . . . . . . . . . . . . . . . . . . . . . . . ...29

10 . SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . ...30

May, 25, 1985

1. INSTALLATION

1-1. UNPACKING PROCEDURE

1. Take out the accessary box and the machire.

2 .

R e m o v e t h e

t w o

cushion

 

blocks.

 

 

3,

Open the viny

bag

and take

 

out the machine.

 

4.

C h e c k t h e q u a n t i t y o f t h e

 

accessories using the follow-

 

ing list.

 

 

1)

Cassette

1 pc

2)

Copy Tray

1 pc

3) Master

Unit

1 pc

(115V

and 220V

machines

only)

 

 

Note: Keep the master unit in the box until installing it in the copier.

4)

Power

Supply

Cord

1 pc

5)

Toner

1

cartridqe

(Black)

 

 

 

.

 

( 1 1 5 V a n d 2 2 0 V m a c h i n e s only)

–1-

May, 25, 1985

1-2. INSTALLATION PROCEDURE

Release Latch

1 . Remove the two strips of tape.

Slider

Z. Move the slider to the left until the right edge of the copier is exposed.

3. Squeeze the release latch and open the top unit.

4.Remove the three strips of tape and the silica gel.

Turn to the next page.

2 –

May, 25, 1985

5. Lower the master release lever.

Master Release Lever

6 . R e m o v e t h e t h r e e w e d g e s from the master unit.

Note: Do not touch the master (purple material) and avoid’ exposing it to light.

7. Insert the master unit into the copier until it stops.

8. Peel the polyester cover off of the master.

9. Return the master release lever to its original position.

10. Shake a cartridge of oner well.

11 . Set the pins of he toner cartridge into the slots on the development unit. Then, turn the cartridge counterclockwise.

12 . Install the cartridge crank

on

t h e s h a f t . T h e n , t u r n t h e

cartridge

crank clockwise

to

strip off

the cartridge seal.

 

Remove the cartridge crank.

Note: At installation, it is recommended to load two cartridges of toner.

13. Lower the top unit.

Turn to the next page.

4

May, 25, 1985

14.Load paper in the cassette a s shown on page 17, and insert the loaded cassette until it stops.

15.Install the copy tray on the left side of the machine.

16. Connect the power supply cord.

17. When not using this instruction booklet, keep it in the holder on the back of the copier.

This completes machine installation.

– 5 –

May, 25, 1985

1-3. INSTALLATION REQUIREMENTS

The installation Iocatlon should be carefully chosen because environmental condi- 1l-ons greatly affect the performance of a copier

Optimum environmental conditions:

. Temperature . . . . . . . . 10–30° C

. Well-ventilated and wide room

 

(50-86° F )

Minimum ventilation: air tur-

. Humidity . . . . . . . . .

15–90% RH

nover 3 times/hour

. On a strong and level base (a sturdy desk, etc. )

. The copier must be level within 5 mm (1 3/64”) both front to rear and left to right

Turn to the next page.

6

May, 25, 1985

Environments to avoid:

Locations exposed to direct sun-

Dusty areas ‘

light or strong light (more than

 

1,500 Iux)

 

Areas

higher than

2,000 m

(6,500

ft) above sea

level

Areas where the copier may be subjected to frequent strong vibration

Locations

directly exposed to the cool air from an aircondi -

tioner or to reflected heat from a space heater

(Sudden

temperature changes from low to high or vice ver-

sa may

cause condensation within the copier. )

 

 

– 7

POWER CONNECTION

Connect the power cord to a power source as shown below

a)115 V/60Hz : More than 12A

b)220 V/50Hz : More than 6A

c)240 V/50Hz : More than 6A

Voltage must not fluctuate more than 10%.

D o n o t s e t a n y t h i n g o n t h e power cord.

Ground the copier properly to prevent accidents.

Do not ground to a gas line.

Make sure the plug is firmly inserted in the outlet.

Avoid multiwiring.

If an extension cord must be used, it must have a capacity of more than 300 V/30A

(300WZOA for 220/240V machine) and be less than 5m (5.5 yds) long.

ACCESS TO COPIER

More than 12 cm (4-3/4”)

Place the copier near a power source providing. clearance as shown.

8

May, 25, 1985

2. GUIDE TO COMPONENTS

2-1. OVERALL MACHINE LAYOUT

 

 

 

Cassette

 

 

 

I

 

 

Guide

Exit Cover

 

\

 

 

Top Unit

/

Master Unit

– 9

M a y , 2 5 , 1 9 8 5

2-3. OPERATOR CONTROLS

Check Paper Path Indicator

Lights when there is a paper misfeed within the copier.

Replace Master Unit Indicator

Lights when it is time to change the master unit.

Add Toner Indicator

Lights when it is time to change the toner cartridge.

Check Cassette Indicator

Lights when either no paper is in the cassette or the cassette is not properly positioned.

Image Density Indicators

Shows the image density level selected.

(Five levels from darkest to lightest)

Copy Counter

Shows the number of copies entered. While copying, this counter shows the number of copies made. (Count up type.)

Wait Indicator

Lights when the copier is warming up. Copies cannot be made when this indicator is on.

– 1 1 –

May, 25, 1985

Manual Feed Indicator

Lights when copy paper has been inserted.

Blinks when the next sheet of

copy paper should be inserted.

Start Key

Press to start copy operation.

Clear/Stop Key

Press to cancel the copy num-

ber entered. While copying, press to stop copy operation.

Increase Quantity Key

Press to increase the copy entry number. (The maximum number of copies that can be entered is 20.)

Decrease Quantity Key

Press to reduce the copy entry number.

Image Density Keys

Use these keys to make copies lighter or darker.

– 1 2 –

May, 25, 1985

3. COPYING

.

3-1. STARTING THE COPIER

 

 

,

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn on the main switch.

 

 

 

 

 

 

 

 

 

 

The Wait indicator ( ~ )

will turn

 

 

 

 

 

 

on, which means the copier is

 

 

 

warming

up. When

this

indica or

 

 

 

turns off,

copies can

be m

ade.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-2. NORMAL COPYING

1 . Raise the platen cover and place the original face down on the exposure glass.

Make sure the original is flush with both he front and the right scales

2. Adjust the image density to match the type and quality of the original by pressing the Image Density keys.

1 3

May, 25, 1985

3. Enter the number of copies

required

b y p r e s s i n g the

Increase

Quantity key.

(Use the

Decrease Quantity

key if you enter too many copies.)

* Up to 20 copies can be entered at one time.

* Press the Clear/Stop key to cancel the entry.

4 Press the Start Key.

The number of copies made will be continuously shown by the copy counter.

(To stop the machine during a multicopy run, press the Clear/Stop key.)

3-3. MANUAL FEED COPYING

Use the manual feed entrance to copy onto paper of

unusual

size or weight.

 

 

1 .

Insert

paper into the

manual

 

 

 

 

 

feed

entrance

( t h e

s p a c e

 

 

 

 

 

 

 

 

 

 

above the cassette) until the

 

 

 

 

 

Manual

Feed indicator

lights.

 

 

 

 

 

N o t e : M a k e s u r e t h a t t h e

 

 

 

 

 

 

 

 

 

 

 

paper is

flush

against

 

 

 

 

 

the front

edge

of

the

 

 

 

 

 

 

manual feed guide

as

 

 

 

 

 

shown.

 

 

 

 

 

 

 

2Position the original on the

 

 

 

 

 

exposure glass and press the

 

 

 

 

 

Start key.

 

 

 

 

 

 

3.

I f m a k i n g m u l t i p l e c o p i e s ,

 

 

 

 

 

insert the next sheet of paper

 

 

 

 

 

into the entrance when the

 

 

 

 

 

Manual Feed indicator starts to

 

 

 

 

 

blink.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 1 4 –

May, 25, 1985

3-4. TWO-SIDED COPYING

1. Copy the first side in the normal manner. Then, insert the copy into the manual feed entrance u n t i l t h e M a n u a l Feed indicator lights.

Important:

The copy must be inserted facedown, and flush against the front edge of the manual feed guide.

2. Set the second original, and

press the Start key. 1

– 1 5 –

May, 25, 1985

3-5. COLOR COPYING

Blue, green, and red development units and toner are available as

options in

addition

to standard black. (You need a separate development unit for each color.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Example: Making a green

and blue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

copy.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 . Install the green development

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

unit

in

the

copier.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Place

the

black development

 

 

 

 

 

 

 

 

 

 

 

 

 

unit in the spare development

 

 

 

 

 

 

 

 

 

 

 

 

 

unit

case.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Place

the original to be copied

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in green on the exposure glass,

 

 

 

 

 

 

 

 

 

 

 

 

 

and

make

the copy.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Insert the copy faceup into the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

manual

feed entrance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 . Exchange the green and blue development units.

5. Place the

original to

be copied

in blue on the exposure glass

and press

the Start

key.

– 1 6 –

May, 25, 1985

4. REPLENISHING SUPPLIES

1 .

Lift

up

and

pull

out the

 

cassette.

 

 

 

2.

Load

paper into the

cassette

 

so that it is flush with the front

 

and

side

fences.

 

 

Note: The

cassette

holds

 

 

approximately

100

 

 

sheets.

 

 

3 . Press down the corners of the paper stack so that they catch underneath the corner separators.

4, Insert the loaded cassette until

– 1 7 –

May, 25, 1985

Paper Storage

Paper should always be stored properly,

because poor paper condition will result in

.poor image reproduction, creased

copies,

and

paper jams.

Generally, to avoid absorption of

moisture and

curling:

 

 

 

 

. Avoid storing paper in humid

 

 

 

 

 

 

 

 

areas.

 

 

 

 

 

. NEVER store paper where it will be exposed to heat.

Store on a FLAT SURFACE. Use OLDER STOCK first.

Do not lay any heavy objects on paper.

. Keep open reams of paper in the PACKAGE, and store as you would unopened paper.

– 1 8 –

1.Open the top unit.

2. Take out the toner cartidge.

3. Shake a new cartridge of toner well

4. Set

the

pins of the

toner

cartridge

into

the

slots

on

the

development

unit. Then,

turn

the

 

cartridge

counter-

clockwise.

5. Install the cartridge crank onto the shaft and turn the cartridge crank clockwise to strip off the cartridge seal.

Then, remove the cartridge crank and lower the top unit.

1 9

Toner Storage

Store in a COOL, DARK place.

NEVER store

toner where it will

be exposed to

heat.

. Keep out of

reach of children.

Do not take

internally.

Do not lay anything heavy on toner cartridges.

2 0

May, 25, 1985

5.REPLACING THE MASTER UNIT

1.Squeeze the release latch and

open the top unit.

2 . Lower the master release lever and slide Out the used master unit.

Dispose of the used unit using the provided vinyl bag.

3 R e m o v e t h e t h r e e w e d g e s from the new master unit

4. Insert the master unit into the copier.

5. Peel off the polyester cover that protects the master.

6. Returnth e master release lever to its original position.

7. Lower the top unit.

22

May, 25, 1985

6. TROUBLESHOOTING

6-1. CLEARING MISFEEDS

before exiting the copier.

1

Raise the top unit and remove

 

the

jammed

paper.

 

 

Note: Do not

touch the master

 

 

(purple

material).

2

If the paper

 

is

caught

inside

 

the

cassette,

 

pull out the

 

cassette and remove the jam-

 

med paper.

 

 

 

 

3

If the paper

 

is

caught

under

 

the

development

unit,

remove

 

the jammed paper by pulling

 

on

the leading

edge.

 

 

This prevents the rollers from

 

getting dirty.

 

 

 

 

Note: The copy image is not fused at this time; be careful not to get hands or clothing dirty.

4 If the paper is caught in the fusing unit, rotate the paper reverse knob counterclockwise to release it.

WARNING: The fusing unit is hot . Avoid touching it.

5 If the jammed paper can not be removed by rotating the paper reverse knob, close the top u n i t a n d r e m o v e t h e c o p y tray. Then, o p e n t h e e x i t cover and remove the jammed paper.

W A R N I N G : Avoid touching the INNER parts of the machine.

23 –

May, 25, 1985

(3) Clean the corona wire with the short pad of the cleaner. Gently rub the cleaner along the wire.

(4) Keep the cleaner on the holder

inside the copier.

#

2. Copies have Dark stripes or Heavy Background

First, try pressing the Lighter key to adjust the image density.

If that does not help, do the following:

Clean the exposure glass and platen cover. (See page 28.)

Clean the fiber optics.

(1)Open the top unit and take out the master unit. Set it on a clean sheet of paper.

(2)Insert the long pad of the cleaner in the fiber optics slot, and slide it from end to end.

the ed

May, 25, 1985

4. Copies cannot

be

Made

I

on?

 

 

Is

 

Wait

for the copier to

warm

up.

See page 23.

3 . N o t h i n g H a p p e n s W h e n Main switch is Turn-

O n

No Indicators On –

IS the power cord plugged in?

Has it been firmly inserted into the copier?

. IS the top unit completely clos- ed?

. Is the development unit in t h e machine?

Check that the cassette is loaded

See page 21.

and properly set.

 

See page 17.

 

u on?

Is a service code

See page 19.

displayed?

 

See page 27.

– 26

May, 25, 1985

6-3. SERVICE CODES

The copier’s microcomputer constantly monitors mechanical and electrical functions. If a malfunc-

will

turn on and a service code will

be

displayed in the copy count-

er. If this happens, turn off the main switch, wait a few seconds, and then turn it on again.

Then, try operating the copier. If the service code is displayed again, call your dealer and tell him which code is on.

(The service code tells the service representative w h i c h t o o l s a n d parts to bring.)

– 2 7 –

May, 25, 1985

7. MAINTENANCE

To maintain a high copy quality, clean the exposure glass and platen cover regularly.

Exposure Glass

Clean the exposure glass with a soft cloth and commercial glass cleaner.

. Platen C o v e r

Clean the platen cover with a damp cloth. If stains do not come off, use a weak cleaning solution.

Note: If the waterproof paper covering the platen cover pad becomes badly stained, you can obtain a new one from your dealer.

– 2 8 –

May, 25, 1985

8. TRANSPORTING THE COPIER

\

 

r

Before moving the copier from its place of installation, remove the copy tray and secure the slider with strips of tape. The copier may be badly damaged if it is moved when the slider is not properly secured. F o r M A X I M U M safety, use the grips diagonally opposite each other to handle the copier.

Leave the master unit and development unit in the machine.

I

9. DO’S AND DON’TS

.

 

Operating

Cautions

 

 

 

1.

While copying:

 

 

 

 

Do not turn off the main switch. Do

not hold the slider.

 

Do not lift the platen cover.

Do not

unplug

the power cord.

2 .

Do not overload the cassette. (The

MAXIMUM capacity is 100 sheets.)

3 .

Do not let the copy tray become overloaded (The MAXIMUM capacity is 20 copies.)

4 .

Do not lay anything weighing

more than 3 kg on the exposure glass.

5 .

Do not lay tools or other hard objects on the exposure glass.

6.

Keep corrosive liquids, such as acid,

off the

machine.

7.

Do not touch the copy paper

if your

fingers

are wet or oily; fingerprints may appear

 

on the copy.

 

 

 

8.Do not allow paper clips, staples, or other small metallic objects to fall inside the machine.

9.To avoid misfeeds, copy transparencies without a backing sheet. (Use recommended transparencies.)

10.Do not touch the master (purple material) and avoid exposing it to light.

General Cautions

1, Since some parts of the copier are supplied with high voltage, make sure the main switch is off before working on the copier.

2. Do not modify or replace any parts other than the ones mentioned in this manual.

3. When not using the copier for a long period, disconnect the power supply plug.

4, Never store the master unit where it will be exposed to heat,

– 2 9 –

May, 25, 1985

10. SPECIFICATIONS

,

 

 

 

Configuration

Copy Process

Originals

Copy Size

: Desktop (moving platen)

: Dry process (mono-component toner)

: Sheet/Book

: M a x i m u m

– A4 (8-1/2” X

11“)

M i n i m u m

– Business card

size (84 x 49

 

mm) (3-1/2” x

2“)

Multiple Copying

: up to 20

 

Warm-Up

Time

: Approximately

15 seconds

Automatic

Reset

:

After 60 seconds

First Copy

Time

: 10 s e c o n d s

 

Copying Speed

:

8

copies/minute

Reproduction Ratio

:

1

: 1

 

Paper Feed

: Single cassette

(100 sheets) and Manual

 

 

 

Feed

 

Toner Supply

Copy Paper

Copy Paper Weight

Power Source

: Cartridge (black, blue, red, and green)

: Bond paper/colored paper/mailing labels OHP transparencies/translucent paper mimeographic paper

: 52 to 157 g/m2 (14to 42 lb) (Manual Feed)

: 1 15V/601+z/l 2A

220 V/50 Hz/6A, 240 V/50 Hz/6A

Power Consumption

Dimensions

Weight

: 1.2 WA (1

15V),

1.4 WA

(220/240V)

.

 

D

 

H

. w

 

 

404 mm

x 485

mm x 225 m m

(16“X 19“

x

8 - 7/8”)

 

: Approximately

20 kg (44

lb)

Note: To obtain the best

copies, use Ricoh FT paper or a similar bond paper,

Ask

your sales

or

service representative to recommend a brand of paper

that

is suitable

for

use with the M 5 .

Specifications are subject to change without notice.

– 3 0 –

S E R V I C E M A N U A L

 

May, 25, 1985

9. Cleaning of Parts

 

Fiber Optics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

... 3-29

10. Lubrication of Parts

 

Fiber Optics Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

... 3-30

Development

 

1 . Black Development

3-31

2 . Color Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 33

3 . Bias Application . . .

3 - 35

4 . Drive Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 36

5 . Toner End Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

...3-37

6 . Development Cover Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

...3-38

7 . Bias Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-39

8 . Toner End Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-40

9 . Replacement of Parts

 

Toner Metering Blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-41

Image Transfer and Separation

 

I. Image Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-42

2. paper Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-42

3. Transfer Corona Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-43

4. Replacement of Parts

 

Transfer Corona Nylon Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-44

Transfer Corona Wire..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-45

Transfer/Bias PowerPack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-46

Cleaning

l. introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-47

2. Toner Overflow Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..3~48

3. Toner Overflow Sensor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-49

Quenching

 

l. introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

...3-50

2. Quenching Lamp Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-51

3. Replacement of Parts

 

Quenching Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

3-52

Paper Feed and Registration

1 . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-53

2 . Manual Paper Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-53

3 . Paper Feed Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-54

4 . Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-55

5 . Paper Feed Solenoid Circuits and Timing . . . . . . . . . . . . . . . . . . . . . . . ...3-57

 

May, 25,1985

6 . Replacement of Parts

 

Paper Feed Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 58

Registration Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 59

Paper Feed Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 60

7 . Adjustment of Parts

 

Leading Edge Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-61

8 , Lubrication of Parts

 

Paper Feed Spring Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 

Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 63

Image Fusing

1 . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 6 4

2 . Drive Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 65

3 . Fusing Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66

4 . Fusing Lamp Control Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 68

5 . Replacement of Parts

Fusing Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 7 0

Hot Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Pressure Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 72

Hot Roller Strippers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 73

Fusing Thermoswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 7 4

Other Mechanical and Electrical Components

1 . Safety Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 75

2 . Pulse Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 76 3 . Jam Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 77 4 . Indicator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 78 5 . Replacement of Parts

Exterior Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 79 Standing up Clamshell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 80 Ozone Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81 Main Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 82 Pulse Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 83 Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8 4 Dc Power Supply Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 85 Mylar and Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 86

Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Service Tables

 

 

I. Maintenance Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1

2. Maintenance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

3. Lubrication

Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...................

5-3

 

.- .

5 - 4

4. DIP Switch Table . . . . .

5. Service Call Conditions

5-5

6. Special Tools . . . . . . . .

5-6

Troubleshooting . . . . . . . . . .

6-1

Electrical Data .

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

7-1

4

SECTION 1

SPECIFICATIONS

Configuration:

Copy Process:

Originals: .-.

Maximum Original Size:

Copy Paper Size:

Copy Paper Weight:

Acceptable Original Weight:

Reproduction Ratio:

Copying Speed:

First Copy:

Warm-upTime:

Operation Control:

Start Switch:

Copy Counter:

Clear/Stop:

Image Density:

Automatic Reset:

Indicators:

Photoconductor:

May, 25, 1985

Desktop (Moving platen)

Mono-component dry toner process

Book/sheet

A4 (210 x 297 mm)

Letter (8-1 /2” x 11”)

Maximum: A4 (210 x 297 mm)

Letter (8-1/2” x 11“)

Minimum: Business card size (49 x 84 mm, 2“ x 3-1/2”) (Lengthwise feed only)

Cassette Feed: 60 to 80 g/m2 (16 to 21 lb) Manual Feed: 52 to 157 g/m2 (14 to 42 lb)

Maximum: 3 Kg

11

8 copies per minute (All sizes)

10 seconds

Approximately 15 seconds (Room temperature 20°C) Microcomputer

Profile key

1 to 20 copies (Count-up) Profile key

Exposure intensity control (Fixed bias)

After 60 seconds (Copy counter only)

1 . “check paper Path” indicator

2.“Replace Master Unit” indicator

3.“Check Cassette” indicator

4.“Add Toner” indicator

5 . “Image Density” indicator

6 “Ready” indicator

7 . “Manual Feed” indicator Organic photoconductor (Master)

1-1

Master Charge:

Exposure System:

Exposure Lamp:

Exposure LampHeater:

Optics:

Development:

Toner Replenishment:

Toner Consumption:

Development Bias:

Image Transfer:

Cleaning:

Quenching:

Paper Feeding:

Paper Feed System:

Image Fusing:

Fusing Lamp:

Copy Tray Capacity:

Self-diagnostic Codes:

Power Source:

Power Consumption:

May, 25, 1985

Single-wire with grid plate (Scorotron)

Slit exposure, moving platen

Fluorescent lamp 14 W

5 W (When plugged in)

Fiber optics

Floating electrode roller system (mono-component dry toner)

Cartridge (70 g/black toner) (50 g/color toner)

1700 copies Negative fixed bias

Single wire dc corotron (Negative charge)

Cleaning blade

LED Lamps

Cassette (100 sheet capacity) and manual feed

Pick-up, feed roller and corner separators

Heat roll type, Teflon and silicone rubber rollers

1,050 w

20 sheets

El : Exposure

E2: Slider

E3: Development

E5: Fusing

E6: Functional Drive

E7: Master Unit

1 15V/60Hz 12 A

220 V, 240 V/50Hz 6 A

Maximum: 1.2 kW (115 V)

Maximum: 1.4 kW (220/240 V)

1-2

X 1 9 “ X 8 - 7 / 8 ” )
X 19“ X8 - 7 / 8 ”)

Dimensions:

Weight:

Optional Equipment:

May, 25, 1985

(W x D x H)

Without Cassette and Copy Tray 404mm x 485 mm x 225 mm (16“

With Cassette and Copy Tray 610 mm x 485 mm x 225mm ( 2 4 ”

Approximately 20 kg (44 lb)

-Cassettes (LT and A4 sizes)

-Development Units (Color toner)

1-3

SECTION 2

OVERALL MACHINE

INFORMATION

I. Functional Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

2-1

2. Copy processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

2-2

3. Mechanical Component Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

2-4

4. Electrical Component Layout.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-6

5. Drive Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

2-8

6. Power Distribution

 

-AC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

2-10

-DC Power Suppiy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

2-11

-Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

2-12

I

1. Functional Operation

/

2-1

2 8 Copy Process

2-2

2-3

May, 25, 1985

3. Mechanical Component Layout

2 - 4

May, 25, 1985

A

2-5

‘1

May, 25, 1985

4. Electrical Component Layout

2-6

+ 163 hidden pages