Ricoh FT4227-S Service Manual FT4227

INTRODUCTION

The A085/A087/A08 8 cop ier is based on the A069/A073/A07 4 cop ier, the base copier.

This documentation gathe rs the modif ications to the base copier’s service manual that service personnel will need to service this cop ier. This package contains the following:

° A table of contents for the modified manual ° A list of the major difference s between this copier and the base

copier

° A set of selected pages to replace th e ones in th e base copier’s

manual, including revised specifica tions SP mode tables.

° An explanation of this mode l’s new fu nct ions ° An explanation of DF’s (A497) new f unction ° A section for the new sorter sta ple r (A 374)

IMPORTANT SAFETY NOTICES

PREVENTION OF PHYSICAL INJURY

1. Before disassembling or assembling parts of the copier and peripherals, make sure that the copier power cord is unplugged.

2. The wall outlet should be near the copier and easily accessib le.

3. Note that some components of the copier and the paper tray unit are supplied with electrical voltag e even if the main switch is turned off.

4. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components.

5. If the hot roller temperature is low when the main switch is turned on, the copier starts idling automatically when the warm-up period is completed. Keep hands away from the mechanical and the electrical components to avoid any injury.

6. If the start key is pressed before the copier completes the warm-up period (Ready indicator starts blinking), keep hands away from the mechanical and the electrical components as the copier starts making copies as soon as the warm-up period is completed.

7. The inside and the metal parts of the fusing unit beco me extremely hot while the copier is operating. Be careful to avoid touching those components with your bare hands.

HEALTH SAFETY CONDITIONS

1. Never operate the copier without the ozone filters installed.

2. Always replace the ozone filters with the specified ones at the specified intervals.

3. Toner and developer are non-toxic, b ut if you get either of them in your eyes by accident, it may cause temporary eye discomfort. Try to remove with eye drops or flush with water as first aid. If unsuccessful, get medical attention.

OBSERVANCE OF ELECTRICAL SAFETY STANDARDS

1. The copier and its peripherals must be installed and maintained by a customer service representative who has completed the training co urse on those models.

2. The RAM board on the main control board has a lithium battery which can explode if replaced incorrect ly. Replace the battery only with an identical one. The manufacturer recommends replacing the entire RAM board. Do not recharge or burn this battery. Used batteries must be handled in accordance with local regulations.

SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL

1. Do not incinerate the toner cartridge or the used toner. Toner dust may ignite suddenly when exposed to open flame.

2. Dispose of used toner, developer, and organic photoconductor according to local regulations. (These are non-toxic supplies.)

3. Dispose of replaced parts in accordance with local regulations.

4. When keep ing used lithium batteries in order to dispose of them later, do not put more than 100 batteries per sealed box. Storing larger numbers or not sealing them apart may lead to chemic al reactions and heat build-up.

SECTION 1

OVERALL MACHINE

INFORMATION

10 July 1992 MAJOR DIFFER ENT POINTS FROM THE BASE COPIER : A069/A073/A074

1. MAJOR DIFFERENT POINTS FROM THE

BASE COPIER : A069/A073/A074

The major different points of this copier A085/A087/A088 fr om the base cop ier A069/A073/A074 are listed in the fo llowin g table:

No. Section/Item This model (A085/A087/A088) Base model

(A069/A073/A074)

Major features

1 Copy speed 27 copies/min.

(A4/11 x "8 16 copies/min. (A3) 15 copies/min. (11" x 17")

2 First copy time 5.4 seconds

for type 1 & 3: upper tray

5.8 seconds for type 2: LCT

(A4/11" x 8 3 Color copy Not applicable Opti on 4 Overlay mode Not applicable Standard for A074 5 Edit function Not applicable Option for A 074 6 Shadows from

pasted originals

7 Combine 2 originals

mode

Erased for normal thickness

paper

Standard with ARDF Not applicable

1/2" sideways )

Operation panel

8 Guidance display Not applicable Standard for A074 9 Beeper Not applicable Standard

10 Indicators (LEDs) The following indicators are not

applicable:

Color copy, full size, overlay,

ten keys zoom, enlarge,

reduce, special features, editor

boar d guidance , area memory ,

use d toner tank, close cover,

set key co unter , call service,

zoom, start key (red/ green)

The f ollowing indicator has

been newly added:

Combine 2 originals

11 Keys The following keys are not

applicable:

Col or copy, ten keys zoom

Optics

12 1st scanne r Newly designed

(The newly designed main

reflector lets shadows be

erased when copying pasted

originals.)

33 copies/min. (A4 / 11"X8 19 copies/min. (A3) 18 copies/min. (11" x 17")

4.5 seconds for type 1 & 3: upper tray

4.9 seconds for type 2: LCT (A4/11" x 8

Not erased

Standard (Ove rlay/area memory; A074 only, editor board guidance; option)

Not applicable

Standard

Original

1/2" sideways )

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MAJOR DIFFERENT POINTS FROM THE BASE COPIER : A069/A073/A074 10 July 1992

No. Section/Item This model (A085/A087/A088) Base model

(A069/A073/A074)

Development

13 Development unit

shift mechanism

Not applicable Standard

Around the drum

14 Automatic drum

current adjustment

Not applicable Standard

Paper Feed

15 Tray lock Solenoid

(not for duple x tr ay)

Not applicable Standard

Fusing

16 Fusing unit Newly designed

(Serviceability has been

improved. The fusing roller

pressure a nd the nip band

width are less.)

17 Pressure roller Newly designed

(The diameter at the middle is

slightly smaller than that at the

ends, reducing the occurrence

ratio of creasing afte r f us ing.)

Original

Original (common with A006)

Process control

18 Process speed 150 mm/sec.

(The ma in motor speed is the

same, but its output is slowed

down by a step-down pulley.)

19 Grid bias voltage Vgi (for image): -715 V

V gp (for sensor pattern): -480 V

20 Separation corona

current

G correction Applies another -2 0 V to the

21 V

22 Exposure lamp

voltage

23 Color toner density

control

24 Development bias

voltage control for color toner

ac 190 µA ac 210 µA

grid bias voltage after the drum

has rotated 2, 44, 75, and 105

hours.

The target lamp voltage for the

first copy of a copy run is

decreased by –0 .5 V.

Not applicable Standard

180 mm/sec.

Vgi (for image): -745 V V gp (for sensor pattern): -500 V

Applies another -20 V to the grid bias voltage after the drum has rotated 2, 37, 63, and 88 hours.

The target lamp voltage for all the copies of a copy run are the s ame.

Pe ripheral equipment

25 Color development

unit

26 Edit erase lamp unit

(Editing interface adapter type B)

27 Editor board Not applicable Option for A074

Not applicable Option

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10 July 1992 MAJOR DIFFER ENT POINTS FROM THE BASE COPIER : A069/A073/A074

No. Section/Item This model (A085/A087/A088) Base model

(A069/A073/A074)

28 Sorter stapler (A366;

fixed bin type)

29 Sorter stapler (A374;

moving bin type)

30 Auto reverse

document feeder (A497)

Not applicable Option

Option Not applicable

Option with combine 2

origi nals mode

(The software has been

changed. The ARDF with the

new ROM has a different

destination code.

The ARDF can be also installed

on other current models

(A069/A073/A074/A053).)

Option

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SPECIFICATIONS 10 July 1992

2. SPECIFICATIONS

Configuration: Desktop Copy Process: Dry electrostatic transfer system Originals: Sheet/Book Original Size: Maximum A3/11" x 17" Copy Paper Size: Maximum A3/11" x 17"

Minimum B5/11" x 81/2" - Paper tray

A6/51/2" x 8 1/2"(lengthwise)

-By-pass feed table

(LCT B5/A4/11" x 81/2" sideways only)

(Duplex Copying) Multiple: Single:

A4 and B5/81/2" x 11" (sideways) Maximum A3/ 11" x 17" Minimum B5/8" x 13"

Copy Paper Weight: • 250-sheet paper tray and 1000-s heet large

capacity tray: 52 –128g/m2, 14 –34lb

• By-pass feed table:

52 –157g/m2, 14 –42lb

• Duplex:

64 –105 g/m2, 17 –28lb

Reproduction Ratios: 4 Enlargement and 6 Reduction

A4/A3 Version LT/LDG Version

200%

Enlargement

Full S iz e 100% 100%

Reduction

141% 122% 115%

93% 82% 75% 71% 65% 50%

200% 155% 129% 121%

93% 85% 77% 74% 65% 50%

Receiving Tray Capacity:

250 sheets (B4/81/2" x 14" and smaller) 100 sheets (A3/ 11" x 17")

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10 July 1992 SPECIFICATIONS

Power Source: 115V, 60HZ, more than 12A (for N.A)

110V, 60HZ, (for Taiwan) 220/230/240V, 50HZ/60HZ, more than 8A (for EU and AA)

Power Consumption: Maximum: 1.5 KW

Warm-up: 0.77 KW Stand -by : 0.14 KW Co py Cycle (average): 1.2 KW

Noise Emission: Stan d-by: less than 40 dB

Copy Cycle (average):

less than 56 dB (copier only) less than 59 dB (full system)

Maximum:

less than 62 dB (copier only) less than 65 dB (full system)

Dimensions:

Width Depth Height

Type 1

Type 2

Type 3

697 mm (1035 mm)

27.4" (40.7")

871 mm (1075 mm)

34.3" (42.2")

871 mm (1075 mm)

34.3" (42.2")

600 mm

23.6"

600 mm

23.6"

600 mm

23.6"

542 mm (574 mm)

21.3" (22.6")

542 mm (574 mm)

21.3" (22.6")

542 mm (574 mm)

21.3" (22.6")

( ): When the by-pass feed table is opened, the copy tray is extended, and the platen cover is installed.

Weight: Copier only (Without the optional platen

cover= Approximately 2 kg (4.4 lb)) Type 1: approximately 77 kg (169.4 lb)

Type 2: approximately 87 kg (191.4 lb)

Type 3: approximately 83 kg (182.6 lb) Zoom: From 50% to 200% in 1% steps Copying Speed: 27 copies/minute (A4/81/2" x 11" sideways)

16 copies/minute (A3)

15 copies/minute ("11 x 17") Copying Speed

with ARDF:

(Single copy (1 to 1),

27 copies/minute (A4/81/2" x 11" sideways)

16 copies/minute (A3)

15 copies/minute ("11 x 17") full size) Warm-up Time: Less than 110 seconds (20°C)

1-5

SPECIFICATIONS 10 July 1992

First Copy Time: 5.4 seconds (A4/81/2" x 11" sideways)

Type 1, 3: (Upper tray feed)

5.8 seco nd s

Type 2: (Large capacity tray feed) Copy Number Input: Ten keys, 1 to 999 (count up or count down) manual Image Density

7 steps Selection: Automatic Reset: 1 minute standard setting; can also be set to 3

minutes or no auto reset. Copy Paper Capacity: • By-pass feed table; appr oximately 20 sheets

• Paper tray: app roximately 250 sheets

• Large capacity tray; approximately 1000 sheets

Toner Replenishment: Black: cartridge exchange

(320 g/cartridge)

Optional Equipment: • Platen cover

• Document feeder

• Paper tray unit with one paper tray

• Paper tray unit with three paper trays

• 10 bin micro sorter

• 20 bin mini sorter

• 20 bin mid i sorter

• 20 bin sorter stapler

• Sorter adapter (needed when installing the

mini or midi sorter, or the sorter stapler)

• Interface PCB (needed when installing the

sorter stapler or the menu reader)

• Key counter

• Menu reader ( except for Europe)

• A3 counter (service part)

1-6

(A328)

(A326)

10 July 1992 MACHINE CONFIGURA TION

3. MACHINE CONFIGURATION

3.1 COPIER

TYPE 1 (A085) TYPE 2 (A088) TYPE 3 (A087) UPPER TRAY 250 DUPLEX 250 LOWER TRAY 250 250 250 LCT – 1,000 1,000

3.2 OPTIONAL EQUIPMENT

10BIN SORTER (A327)

20BIN SORTER

(A423)

20BIN SORTER

(A411)

MENU READER (A952)

ARDF (A497)

SORTER ADAPTER

SORTER ST APLER

(A374)

PAPER TRAY UNIT

(A325)

1-7

PAPER TRAY UNIT

MACHINE CONFIGURATI ON 10 July 1992

REQUIRED

COPIER

TYPE 1

(A085)

1 TRAY

PAPER

TRAY UNIT

SORTER

DOCUMENT

FEEDER MENU READER (A952) o o o **

(A325)

3 TRAY

(A326)

10 BIN (A327)

20 BI N MINI

(A423)

20 BIN MIDI

(A411) 20 BIN

STAPLER

(A374)

ARDF (A497) o o o

TYPE 2

(A088)

ooo

ooo *

ooo * **

TYPE3 (A087)

OPTIONAL

EQUIPMENT

SORTER

ADAPTER

(A328)

INTERFACE

PCB

(A344)

NOTE: * The sorter adapter is required to install the 20 bin

mini sorter, 20 bin midi sorter or sorter stapler .

* * The I/F board is required to install the sorter stapler

or Menu Reader.

1-8

SECTION 2

DETAILED SECTION

DESCRIPTION

[Fig. 2]

10 July 1992 OPTICS

1. OPTIC S

1.1 FIRST SCANNER

[C]

[B]

[Fig. 1]

The first scanner of this copier has been re-designed from the one for the base model (A069/A073/A074) to reduce shadows of p asted originals.

Although the exposure lamp’s rating voltage is the same, the shape of the reflectors have been changed, as shown above. Figure 1 is fo r the base model, and figure 2 is for this copier.

[A]

[B]

[A]

For figure 1, the light intensity [A] reflected from the main reflector is stronger than the light intensity [B] reflected from the sub reflector. The proportion is about 65% to 35%. Under this condition, as the scanner moves under the original, the lead edge shadow [C] of the pasted parts of an original might appear on copies.

For figure 2, the proportion of the light intensity [A,B] reflected from the main and sub reflectors is almost 50% to 50%. Under this condition, both the lead and trail edges of the pasted parts of an original will not make shadows.

Shadows might appear not only at the lead edge, but also the inner side of the pasted parts. The light intensity of the exposure lamp at both ends is slig htly stronge r than that at the center. This is nece ssary to have even exposure on the drum surface through the lens. Because of this, eliminating the side edge shadow of pasted parts of an original is very difficult. Although the light intensity dis tribution of the expo sur e lamp from end to end has been slightly changed on this model, the side edge shadow might appear on thick pasted originals.

2-1

SECTION 3

INSTALLATION

10 July 1992 COPIER INSTALLATION

1. COPIER I NSTALLATION

1.1 ACCESSORY CHECK

1. Receiving Tray.......................................................................1

2. Outer Decal - Symbol Explanation .........................................1

3. Sorter Key Top and Cover.....................................................1

4. Counter Set Key (–17 machine only) .....................................1

5. Installation Procedure ............................................................1

6. Operating Instructions (Except –27 machine)........................1

7. New Equipment Condition Report

(–17, –19, –27, –29 machine only) ................................ 1

8. Envelope for NECR (–17 machine only).................................1

9. User Survey Card (–17 machine only)...................................1

10. Equipment Quality Report (–15 machine only).......................1

3-1

[E]

COP I ER INS TALLATION 10 July 1992

1.2 INSTALLATION PROCEDURE

[A]

NOTE:

[B]

[D]

[C]

[A]

Keep the shipping retainers after installing the machine. They will be reused if in the future the machine is transported to an another location. Proper reinstallation of the shipping retainers is required in order to avoid any transport damage.

1. Remove the 12 strips of tape [A] as shown.

2. Open the front door and remove 4 strips of tape [B] as shown.

3. Pull out the duplex tray [C] and remove the 2 str ips of tape [D] and 3 sheets of paper [E] (duplex machine only).

3-2

10 July 1992 COPIER INSTALLATION

[A]

[D]

[B]

[C]

[E]

4. Remove the left scale [A] (2 shoulder screws).

5. Remove the scanner lock pin [B] simply by pulling it up from the front and the r ear side of the left scale bracket .

6. Reinstall the left scale.

7. Remove the left optics cover [C] (1 screw).

8. Remove the scanner lock plate [D] (1 screw) and reinstall the left optics cover.

9. Remove the ship ping retainer [E] ho lding the ozone filter. The retainer is taped on the upper exit cover.

3-3

[C]

COP I ER INS TALLATION 10 July 1992

[E]

[C]

[B]

[A]

[D]

[F]

10. Push the development unit lock lever [A] to the right (to the lock position).

11. Move the development release lever [B] to the right and pull out the black development unit [C] half way. Holding the toner supply unit [D] with your right hand and the bottom of the development unit with your left hand, pull the unit all the way out . Place the unit on a clean sheet of paper.

12. Separate the toner supply unit from the development unit (3 screws).

13. Pour one pack of black developer [E] into the development unit while turning the development roller knob [F] counterclockwise. This will distribute the developer inside the unit.

14. Remount the toner supply unit on the development unit.

3-4

10 July 1992 COPIER INSTALLATION

[B]

[C]

[A]

[D]

[E]

15. Lower the transfer & separation corona unit by pulling down the release lever [A].

16. Turn the cleaning unit release lever [B] counterclockwise to the upright posit ion . (Th e cleaning unit is released from the drum.)

17. Remove t he drum pr ot ective sheet [C] from the developm ent unit opening.

CAUTION: To avoid damaging the pick-off pawls, remove the drum

protective sheet by pulling the lower side as shown in the figure.

18. Turn the cleaning unit release lever clockwise to the set position.

19. Remove the clean ing blade lock plate [D].

20. Reset the transfer & separation corona unit [E].

3-5

[D]

[E]

COP I ER INS TALLATION 10 July 1992

[B]

[C]

[A]

[F]

21. Install the black development unit [A] in the copier, and remove the cover sheet [B] from the toner supply unit.

NOTE: • When installing the development unit, be sure that the

development unit rail is placed directly on the development unit guide rail.

• Make sure that the development release lever [C] is in its

original p os ition after the development unit is set.

22. Shake the toner cartridge [D] well from side to side. While pushing the toner cartridge in, insert it halfway into the holder with the seal [E] up.

23. As you peel off the seal, insert the cartridge completely. While pushing the toner cartridge in, turn it counterclockwise until it stops.

24. Slide out the charge coron a unit [F] until it is fully extended and push it back in to the o riginal position. Rep eat th is actio n several time s.

3-6

10 July 1992 COPIER INSTALLATION

[B]

[D]

[F]

[E]

[C]

[A]

25. Close the front door and set the copy tray [A].

NOTE: The following steps from 26 to 29 are required only to install the

optional platen cover [B].

26. Remove the rear cover (remove 2 screws and loosen 2 screws).

27. Install the 2 shoulder screws [C] on the top cover as shown.

28. Pass the harness [D] throu gh the hole of the top cover and install the optional platen cover (2 screws).

29. Couple the platen cover sensor connector [E] (3P white) with the copier and reinstall the rear cover.

30. Stick the symbols explanation decal [F] on the top cover as shown. (If the ARDF will be installed, stick the decal on the corresponding position of the ARDF.)

31. If local voltage is 230 V or 240 V, perform t he vo ltage change procedure (following the installation procedure).

3-7

COP I ER INS TALLATION 10 July 1992

32. Load A3 ( 11" x 17") paper either in the 1st or the 2nd paper t ray and plug in the machine.

33. While pressing both the "1" and "3" on the operation panel number keys, turn on the main switch in order to access the SP mode.

NOTE: Release the number keys after confirming that the auto image

density indicator and the copy counter number "0" are blinking.

34. Enter "65" using the number keys and then press the enter key. (The copier starts the black developer initialization, and this lasts about 5 minutes.)

35. Enter "66" using the number keys and press the enter key. Press "1", then the enter key. (The copier performs the drum initial setting.)

3-8

+ 53 hidden pages