Toshiba f98l473 Service Note

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Page 1

BSI(Service Note) TOSHIBA

TOSHIBA TEC CORPORATION

2-4-1, Shibakoen, Minato-ku, TOKYO, 105-8524 JAPAN

BSI No

F98L473

SUBJECT

New Model DP-2570 (Service Manual)

MODEL

CATEGORY

New Model Description

----------

CONTENT

We are pleased to announce the availability of our newes t copier, the DP-2570. The DP-2570 is very similar to the DP-2460, expect for minor changes. No Service Manual has been specially prepared for the DP-2570 and this BSI, in which the differences from the DP-2460 are shown, is to serve as a substitute.

DP2570

FIELD APPLICATION

Others

FACTORY APPLICATION

UNIT

Other

Date

99/01/06

----

The changed points in the DP-2460 Service Manual have been sent by PDF file. Changed points are shown shaded, however, pay attention to the following points.

Refer to "DP-2570 Unpacking/Setup instructions" in the Unpacking/Setup instructions of th e copier (DP-2460 Service Manual 21.1).

The files name is shown as pages for the Service Manual .

#e21-45.pdf #e02-5_10_11_12_16.pdf#e09-1_2_3.pdf#e16-75.pdf #e21-25.pdf

#e21-28.pdf #e01-4.pdf

Page 2

21.12 Key Copy Counter MU-8/MU-10

To install the key copy counter, the following parts are required:

• MU-10 Counter socket

• MU-8 Key copy counter Counter socket

• MU-10

Key copy counter

• MU-8

(1) Remove the right top cover (feed side).

Cut the window for the counter.

(2) Pull out the harness connector from the open-

ing in the machine frame.

(3) Cut the short harness of the connector.

Protect the ends of the cut harness not to make a short circuit with the machine frame etc.

Note: Remove the rear cover if the harness con-

nector is in the back etc.

Screw holes for the socket

Harness connector

December 1998 © TOSHIBA 21 - 45 2470 UNPACKING INSTRUCTIONS

Page 3

[B] PC boards

[Front side]

No. Name

CM Key PC board (PWA-F-KEY-230) CN Display PC board (PWA-F-DSP-230)

Liquid crystal display PC board (K-LCD-TOUCH-230)

CP Panel PC board (PWA-F-PNL-230) CQ Control panel PC board (PWA-F-CNT-230) CR High-voltage power supply (PS-HVT-220) CS Logic PC board (PWA-F-LGC-220) DT Image process PC board (PWA-F-IMG-220) DK Discharge LED PC board (LP-ERS) DL CCD PC board (PWA-F-CCD-220)

*2: Option

[Rear side]

No. Name

Scanning motor drive PC board (PWA-F-SDV-220) Manual size detection PC board (PWA-F-SFB-220)

DO*2 Hard disk drive (HDD) DP System PC board (PWA-F-SYS-222) DQ Page memory PC board (PWA-F-PMB-777) DR*2 PM extension memory (KR-3007)

PRT PC board (PWA-F-LANPRT-799+PWA-F-EXT-799)

EK*2

Extension interface PC board (PWA-F-DSI-784)

EL*2 Smoothing PC board (PWA-F-BRT-503) DS*2

FAX PC board (PWA-F-SFY-500+PWA-F-NCU-500*)

December 1998 © TOSHIBA 2 - 5 2470 OUTLINE OF THE MACHINE

Page 4

(5) Heaters and lamps

Parts list

Symbol

EXP EXPO-LAMP Exposes the original Halogen lamp 18 13

HTR HTR-LAMP (Heater lamp) Fixing Halogen lamp 25 6

ERS LP-ERS Discharges the drum LED 22 27

Code name

(Exposure lamp) 180W

(Discharge LED PC board)

Function

Remarks

900W (100V series) 1100W (200V series)

Page Item

DHU DHL D-HTR-L (Damp heater L)

DHU2 D-HTR-U2 Keeps optical mirrors warm Cement resistor 8 24

D-HTR-U (Damp heater U) Keeps optical system warm

Keeps the drum and transfer/separation charger case warm

(Damp heater for mirror)

Cement resistor 11 20 Cement resistor 3 30

(6) PC boards

Symbol

LGC PWA-F-LGC-220 Controls the entire copier 7 27

(Logic PC board)

DSP PWA-F-DSP-230 Controls the control panel 2 21

(Display PC board)

KEY PWA-F-KEY-230 Controls operation keys 2 22

(Key PC board)

PNL PWA-F-PNL-230 Controls operation keys 2 23

(Panel PC board)

CNT PWA-F-CNT-230 Controls operation keys 2 24

Code name

Function

Remarks

Parts list

Page Item

(Control panel PC board)

LCD K-LCD-TOUCH-230 LCD and touch panel 2 27

(LCD PC board)

IMG PWA-F-IMG-220 Controls image reading and 8 34

(Image process PC board) processing

SDV PWA-F-SDV-220 (Scanning Controls the scanning motor drive 8 33

motor drive PC board)

CCD PWA-F-CCD-220 Photoelectric transfer by CCD (11 19)

(CCD PC board)

December 1998 © TOSHIBA 2 -10 2470 OUTLINE OF THE MACHINE

Page 5

(6) PC boards

Symbol

ERS LP-ERS-130 Discharge LED 22 27

(Discharge LED PC board)

SFB PWA-F-SFB-220 (Manual

size detection PC board)

FUS PWA-F-FUS-351 Fuse for the damp heater circuit 3 31

(Fuse PC board)

SYS PWA-F-SYS-222 Controls the entire system 7 17

(System PC board)

PMA1 PMA-T222S1 ROM for destination 7 18

(ROM PC board)

PMB PWA-F-PMB-777 Stores the image data and holds the 7 19

(Page memory PC board) storage data

PMM KR-3007 (PM extension Holds the storage data when Option 7 20

memory PC board) employing the PM PC board

BRT PWA-F-BRT-503 Controls the smoothing process Option 103 10

(Smoothing PC board) when employing the GDI

Code name

Detect width of the manual feed size

Function

Remarks

Parts list

Page Item

14 16

DSI PWA-F-DSI-784 DSI interface board Option – –

PMA2 PMA-T222S2 ROM for program

(ROM PC board)

FAX PWA-F-SFX-500+PWA-F- FAX circuit Option

NCU-500* (F AX PC board)

PRT PWA-F-LANPRT-799+PWA- Printer controller Option

F-EXT-799(PRT PC board)

NIC (KR-7010/7011/7012) Network Interface board Option

(Network Interface Card PC board)

December 1998 © TOSHIBA 2 - 11 2470 OUTLINE OF THE MACHINE

Page 6

(7) Transformers

Symbol

HVT PS-HVT-220 Generates high voltages for

(Main charger) each process Minus (Main charger grid) Minus (Developer bias) Minus (plus

(Transfer) Plus (Separation) AC+DC (minus) (Transfer bias) Plus (Pre-Cleaning discharge charge)

ACC PS-ACC-220 Supplies electrical power for 7 26

(Switching power supply) entire copier and controls the

Code name

exposure lamp

Function

Remarks

Mono unit type

selectable)

AC+DC (minus)

Parts list

Page Item

7 31

(8) Others

Parts list

Symbol

ATS SNR-ATC Reads toner density with a magnetic 23 33

Code name

(Auto-toner sensor) sensor

Function

Remarks

Page Item

THMS1 THMS1-HTR Detects temperature of the heat roller 26 19

(Heat-roller thermistor-1)

THMS2 THMS2-HTR Detects the temperature of the heat roller 26 19

(Heat-roller thermistor-2) end

THMS-D THMS-DRM Detects temperature of atomosphere 23 32

(Drum thermistor) around the drum

THERMO1

THERMO2

HDD KQ-2011 Stores the storage data when Option 103 8

K-THERMO-HTR Prevents abnormal heating of heat roller 26 8 (Thermostat) THERMO-SCN Prevents abnormal heating of the 18 12 (Thermostat) exposure lamp

(Hard disk drive) employing the PMB

December 1998 © TOSHIBA 2 - 12 2470 OUTLINE OF THE MACHINE

Page 7

2.4 Removal of Covers and PC Boards

2.4.1 Removal of covers [A] Front cover

(1) Open the front cover. (2) Remove the pins on the hinges at both ends (1

each).

[A]

[B] Rear cover

(1) Remove the 9 screws.

[C] Upper exit cover

(1) Open the front cover and remove the 3 screws.

[D] Lower exit cover

(1) Remove the 5 screws.

[E] Upper feed cover

(1) Open the front cover and the bypass tray and

then remove the 4 screws.

[B]

[C]

[D]

[E]

[F] Feed cover (left and right)

(1) Remove the paper feed cover. (2) When removing the left feed cover, open the

front cover.

[A]

[B]

(3) Remove the screws (2 on each side).

[F]

December 1998 © TOSHIBA 2 - 16 2470 OUTLINE OF THE MACHINE

Bypass tray

[F]

Page 8

9. PRINTING

9.1 Introduction

Electrical signals which are converted in the scanning portion are processed to the image signals in the image process portion and the image signals light up the laser diode in the laser drive portion. The laser beams are irradiated on a photosensitive surface after passing through the lens, polygonal mirror, fθ lenses and mirrors. As this set of components is very susceptible to dust, they are assembled in a clean room. Also, they are adjusted to a high quality. For this reason, this unit should not be disassembled unnecessarily in the field.

Laser unit

Laser diode

Polygonal mirror motor

Polygonal mirror

[Exit side]

Polygonal mirror motor drive board

Lens-1

[Front side]

Polygonal mirror motor

HSYNC detection mirror

Laser drive board

To the drum

Lens

[Rear side]

Mirror-1

HSYNC detection board

Slit glass (Laser light window)

Lens

Aperture

Lens-2

Mirror-2

[Feed side]

Fig. 9.1-1 Laser scanning unit overview

December 1998 © TOSHIBA 9 - 1 2470 PRINTING

Page 9

Rear side

Laser drive board

Feed side

Front side

Exit side

Polygonal motor drive board

Polygonal motor

Fig. 9.1-2 Laser optical unit overview

2470 PRINTING 9 - 2 December 1998 © TOSHIBA

Page 10

9.2 Structure

(1) Laser Unit The laser unit comprises a laser diode, finite lens and aperture.

1 Laser diode

The laser diode is compact, efficient, low-priced, operates on lower power, and has a long life. However, it is sensitive to heat. Laser diode controls emission of laser beams based on the laser control (ON/OFF) signals from the laser drive board.

2 LASER SAFETY

The beam of the semiconductor laser is itself extremely weak (about 5 mW), but focusing the parallel rays results in an increase in energy to which extended exposure is hazardous. The laser optical system of the digital plain paper copier is encased in metal which in turn is housed in the external cover. There is thus no risk of leaks during use, nor during normal servicing. Note, however, that the laser beam is not visible, and extreme care must be exercised when servicing involves focusing the laser. Such operations are hazardous and must not be attempted unless you are specifically trained to work in this area. The warning label shown below is attached on the left side of the upper inner cover.

DANGER–INVISIBLE LASER RADIATION WHEN OPTICAL UNIT OPEN OR DRUM UNIT REMOVED

AND INTERLOCK DEFEATED. AVOID DIRECT EXPOSURE TO BEAM.

VORSICHT–UNSICHTBARE LASERSTRAHLUNG. WENN DIE ABDECKUNG GEÖFFNET ODER

DIE TROMMEL ENTFERNT UND DIE VERRIEGELUNG UNWIRKSAM GEMACHT WIRD. NICHT DIREKT DEM STRAHL AUSSETZEN.

DANGER–RAYON LASER INVISIBLE LORSQUE LE BLOC OPTIQUE EST OUVERT, LE

TAMBOUR RETIRE ET LE VERROUILLAGE HORS D’USAGE. EVITER L’EXPOSITION DIRECTE AU RAYON.

[CAUTION]

• Do not insert tools that are highly reflective into the path of the laser beam.

• Remove all watches, rings, bracelets, etc.

December 1998 © TOSHIBA 9 - 3 2470 PRINTING

Page 11

16.8 System control circuit (PWA-SYS) 24/29

GND

SA23-1

12A4

13A1

SA22-1

13A1

SA21-1

13A1

SA20-1

12A7

SA0-1A

12A4

SA1-1

SA2-1

12A4

SA3-1

12A4

303231

SA4-1

12A4

SA5-1

12A4

282526

SA6-1

12A4

SA7-1

12A4

SA8-1

12A4

2421221920

SA11-1

SA10-1

SA12-1

SA9-1

12A4

SA13-1

12A4

SA14-1

12A4

SA15-1

12A4

SA16-1

12A4

SA17-1

12A4

SA18-1

12A4

141615

SA19-1

12A4

SBHE-0A

13A1

13A4

AEN-0A

IORDY-1

5E8 13E3

9876543

SD4-1A

SD3-1A

SD1-1A

SD0-1A

SD2-1A

12A1

SD5-1A

12A1

SD6-1A

12A1

TX24R10

J73

GDI IMG DATA

VDD

(NT5V) (NT5V)

SD7-1A

GND

SMEMW-0A

SMEMR-0A

13A5

12A4

SA26-1

12A4

SA25-1

12A4

SA24-1

13E3

IO16-0

13E3

MEM16-0

686566

707271

B14

B13

B12

GND

6461625960

GDDAK-0A

GDIRQ-1

GDDRQ-1

13E6

13A4

13E6

B11

B10

B9B8B7

SIOWR-0A

SIORD-0A

13A4

TX24R10

J73

SD10-1A

SD9-1A

12A1

SD8-1A

12A1

[CN80][CN80]

VDD

J71

53313V

SRDY-0

RSTGD-1A

13A5

545655

NT3.3

SD14-1A

12A1

SD12-1A

SD13-1A

12A1

SD11-1A

12A1

SD15-1A

12A1

A13

A14

A12

A10

A11

13E3

524149484746454443

PDAT0-1

PDAT1-1

PDAT2-1

PDAT3-1

PHDEN-0

PVDEN-0

PRCLK-0

PDCLK-0

PHSYN-0

SDAT0-1

SDAT1-1

SDAT2-1

SDAT3-1

23D5

23B3

23D5

23B3

23C5

23B3

23D5

23B3

23C5

23B3

23C5

SHDEN-0

23C5

SVDEN-0

23A3

SDCLK-1

23A3

8763452

Page 12

21.6 Hard Disk Unit (KQ-2011)

1. When performing the installation, turn off the power switch of the copier and unplug the power cord from the outlet.

2. <<Unpacking Procedure>> Open the carton box.

3. Tak e out the hard disk unit and the accessories.

Note) P a y sufficient care when carrying the hard

disk unit. (See the sketch.)

The accessories include the following.

• Retaining bracket

• Connection harness

• BID screw (M4 x 8) (3 pcs.)

• BID screw (M3 x 4) (4 pcs.)

6 8 7 6

Page 13

21.7 Smoothing Unit (BRT Board) (KR-

3015)

1. When performing the installation, turn off the power switch of the copier and unplug the power cord from the outlet.

2. <<Unpacking Procedure>> Open the carton box.

3. Take out the inter nal extension board and locking support.

4. <<Installation Procedures>> Remove the glass fix (with 2 screws).

Page 14

1.5 System list

STAPLE-600

KA-2060PC

MP-1501A4

MP-1501LT

MR-3006A,MR-3006E

RADF

MU-8

MU-10

KR-3015

KQ-2011

MY-1006

KR-8002

MD-5004

MJ-1003

KE-2060

Staple cartridge

Finisher

Original cover

HDD

Slot cover

ADU

BRT board

MF-2460U

MF-2460E

KR-6012AS(ASD)

KR-6012HK(ASD)

KR-6012AU(AVD)

KR-7010

KR-7011

KR-7012

KR-7015

Damp heater

DSI board

ROM

FAX board

RAM board

Cassette module

Key counter

KD-1003

KD-2009

KK-2460

LCF

KR-3007

Extension memory

board for PM

PFP(2 cassettes)

Working tray

PFP(1 cassette)

NIC board

PRT board

EXTENSION

board