TOSHIBA DP4500, DP3500 SERVICE HANDBOOK

Page 1

SERVICE HANDBOOK

DIGITAL PLAIN PAPER COPIER

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DP4500/3500

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Page 2

GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND SER VICE FOR THE COPIER DP4500/3500

The installation and service should be done by a qualified service technician.

1. T ransportation/Installation

• When transporting/installing the copier, employ two persons and be sure to use the positions as indicated below . The copier is quite heavy and weighs approximately 73kg (161lb), therefore pay full attention when handling it.

• Be sure to use a dedicated outlet with AC 115V or 120V/15A (220V, 230V , 240V/10A) or more f or its power source.

• The copier must be grounded for saf ety. Never g round it to a gas pipe or a water pipe.

• Select a suitable place for installation. Av oid excessive heat, high humidity, dust, vibration and direct sunlight.

• Also provide proper ventilation as the copier emits a slight amount of ozone .

• To insure adequate working space for the copying operation, keep a minimum clearance of 80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.

• The socket-outlet shall be installed near the copier and shall be easily accessible.

2. Service of Machines

• Basically, be sure to turn the main switch off and unplug the power cord during service.

• Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the damp heater and their periphery.

• Be sure not to touch high-voltage sections such as the chargers, high-voltage transformer, IH control circuit, exposure lamp control inverter, inverter for the LCD backlight and power supply unit. Especially, the board of these components should not be touched since the electirc charge may remain in the condensers, etc. on them even after the power is turned OFF.

• Be sure not to touch rotating/operating sections such as gears, belts, pulleys, fan, etc.

• Be careful when removing the covers since there might be the parts with very sharp edges underneath.

• When servicing the machines with the main switch turned on, be sure not to touch live sections and rotating/operating sections. Av oid exposure to laser radiation.

• Use suitable measuring instruments and tools.

• Av oid exposure to laser radiation during servicing.

− Av oid direct exposure to the beam.

− Do not insert tools, parts, etc. that are reflective into the path of the laser beam.

− Remove all watches, rings, bracelets , etc. that are reflective.

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3. Main Service Parts for Safety

• The breaker , door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important for safety. Be sure to handle/install them properly.

4. Cautionary Labels

• During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the power cord during service”, “Hot area”, “Laser w arning label” etc. to see if there is any dirt on their surface and whether they are properly stuck to the copier.

5. Disposition of Consumable Parts/Packing Materials

• Regarding the recovery and disposal of the copier, supplies , consumable parts and packing materials, it is recommended to follow the relevant local regulations or rules.

6. When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related documents. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, star washers in the wrong places.

7. Basically , the machine should not be operated with an y parts removed or disassembled.

8. Precautions Against Static Electricity

• The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband,

because the ICs on it may become damaged due to static electricity.

Caution: Before using the wristband, pull out the power cord plug of the copier and make

sure that there are no uninsulated charged objects in the vicinity .

Caution : Dispose of used batteries and RAM-ICs including lithium batteri es

according to the manufacturer’s instructions.

Attention : Se débarrasser de batteries et RAM-ICs usés y compris les batteries en

lithium selon les instructions du fabricant.

V orsic ht : Entsorgung des gebrauchten Batterien und RAM-ICs (inklusive

der Lithium-Batterie) nach Angaben des Herstellers.

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1. ERROR CODE AND SELFDIAGNOSIS

2. ADJUSTMENT

3. PREVENTIVE MAINTENANCE (PM)

4. PRECAUTIONS FOR STORING / HANDLING SUPPLIES AND PARTS

5. TROUBLESHOOTING

6. UPDATING THE FIRMWARE

7. WIRE HARNESS CONNECTION DIAGRAMS

Page 5

1. ERROR CODE AND SELF-DIA GNOSIS ..................................................................................... 1- 1

1.1 Error Code ............................................................................................................................. 1-1

1.2 Self-Diagnosis Modes ............................................................................................................ 1-6

1.2.1 Input check (test mode 03) ....................................................................................... 1-8

1.2.2 Output check (test mode 03) ....................................................................................1-13

1.2.3 T est print mode (test mode 04) ................................................................................. 1-15

1.2.4 Adjustment mode (05)............................................................................................... 1-16

1.2.5 Setting mode (08) .....................................................................................................1-22

2. ADJUSTMENT............................................................................................................................ 2- 1

2.1 Formatting the Hard Disk ....................................................................................................... 2-1

2.2 Adjustment of Auto-Toner Sensor........................................................................................... 2-2

2.3 Dimensional Adjustment of Copied Image.............................................................................. 2- 4

2.3.1 Overview .................................................................................................................. 2-4

2.3.2 Paper alignment........................................................................................................ 2-6

2.3.3 Printer related adjustment ......................................................................................... 2- 7

2.3.4 Scanner related adjustment ...................................................................................... 2-11

2.4 Image Quality Adjustment...................................................................................................... 2-18

2.4.1 Image density ........................................................................................................... 2-18

2.4.2 Sharpness(HPF) adjustment ..................................................................................... 2-19

2.4.3 Gamma slope adjustment ......................................................................................... 2-19

2.4.4 Setting for the range correction ................................................................................. 2-20

2.5 High-Voltage Adjustment........................................................................................................ 2-21

2.6 Adjustment of Developer Unit ................................................................................................ 2-27

2.6.1 Adjustment of the doctor-sleeve gap......................................................................... 2-27

2.6.2 Adjustment of the developer polarity position............................................................ 2-29

2.7 Adjustment of Scanning Section............................................................................................ 2-30

2.7.1 Adjustment of carriages ............................................................................................ 2-30

2.7.2 Lens unit................................................................................................................... 2-3 4

2.8 Adjustment of Angle of the Printed Image.............................................................................. 2-37

2.9 Adjustment of Sidewa ys De viation of Sheet Caused by P aper F eeding.................................. 2-38

2.10 Key Copy Counter (MU-8, MU-10) .......................................................................................... 2-39

3. PREVENTIVE MAINTENANCE (PM) ......................................................................................... 3- 1

3.1 Maintenance Performed Every 150,000(DP4500) and

116,000 Copies (DP3500) ................................................................................................... 3- 1

3.2 Maintenance Performed Every 450,000(DP4500) and

348,000 Copies (DP3500) ................................................................................................... 3- 1

3.3 Cleaning the Units Which Have Processed 75,000 Copies (DP4500)/58,000 Copies (DP3500).. 3-1

3.4 Preventive Maintenance Checklist ......................................................................................... 3- 1

I October 2000 © T OSHIBA TECDP4500/3500 CONTENTS

Page 6

3.5 PM Kit ................................................................................................................................... 3-10

3.6 Jig List...................................................................................................................................3-11

4. PRECA UTIONS FOR STORING / HANDLING SUPPLIES AND PARTS ....................................4- 1

4.1 Precautions for Storing TOSHIBA Supplies............................................................................ 4-1

4.2 Checking and Cleaning of Photoconductive Drum .................................................................. 4- 1

4.3 Checking and Cleaning of Drum Cleaning Blade..................................................................... 4-2

4.4 Checking and Replacement of Pressure Roller Cleaning Roller .............................................. 4- 3

4.5 Checking and Cleaning of Fuser Roller and Pressure Roller ................................................... 4- 3

5. TROUBLESHOOTING ................................................................................................................ 5- 1

5.1 Diagnosis and Prescription for Each Error Code..................................................................... 5-1

5.1.1 Paper transport jam ..................................................................................................5- 1

5.1.2 Paper misf eeding ...................................................................................................... 5-10

5.1.3 Cover open jam ........................................................................................................ 5-17

5.1.4 T ransport jam (ADU and other area).......................................................................... 5-23

5.1.5 T ransport jam (RADF) ............................................................................................... 5-27

5.1.6 Paper jam in finisher ................................................................................................. 5-28

5.1.7 Drive system related service call .............................................................................. 5-48

5.1.8 Paper feeding system related service call................................................................. 5-49

5.1.9 Scanning system related service call........................................................................ 5-55

5.1.10 Fuser unit related service call ................................................................................... 5-57

5.1.11 Communication related service call .......................................................................... 5-60

5.1.12 ADF related service call............................................................................................ 5-63

5.1.13 Laser optical unit related service call ........................................................................ 5-65

5.1.14 Finisher related service call ...................................................................................... 5-66

5.1.15 Service call for others............................................................................................... 5-94

5.2 Troubleshooting for the Image ................................................................................................ 5-95

5.3 Troubleshooting for the Blown Fuse........................................................................................ 5-117

6. UPDA TING THE FIRMWARE ...................................................................................................... 6-1

6.1 Installing Software for Firmware Update ................................................................................. 6- 2

6.1.1 Outline ...................................................................................................................... 6- 2

6.1.2 Requirements ........................................................................................................... 6-2

6.1.3 Dial-up networking function ....................................................................................... 6-3

6.1.4 Installing dial-up networking ...................................................................................... 6-7

6.1.5 Setting dial-up networking ......................................................................................... 6-9

6.1.6 Installing software for FTP server ............................................................................. 6-13

6.2 Operation Procedure in [3][9] Mode........................................................................................ 6- 17

6.2.1 Outline ...................................................................................................................... 6-17

6.2.2 Preparation ...............................................................................................................6-17

6.2.3 Updating firmware ..................................................................................................... 6-19

IIOctober 2000 © TOSHIBA TEC DP4500/3500 CONTENTS

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6.2.4 Display .....................................................................................................................6-25

6.3 Updating the Firmware Using the Downloading Jig ................................................................. 6-29

6.3.1 System firmware....................................................................................................... 6-30

6.3.2 Engine firmware ........................................................................................................ 6-37

7. WIRE HARNESS CONNECTION DIAGRAMS ............................................................................ 7- 1

7.1 AC Wire Harness....................................................................................................... 7-2

7.2 DC Wire Harness ............................................................................................. Appendix

III October 2000 © TOSHIBA TECDP4500/3500 CONTENTS

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1. ERROR CODES AND SELF-DIAGNOSIS

1.1 Error Code

One of the following error codes is displayed instead of the set number while the [CLEAR/STOP] key and the digital key “8” are pressed simultaneously when the “CLEAR PAPER” or “CALL SERVICE” symbol is flashing.

Group

Paper transport jam inside the E01 Leading edge of paper not reaching the exit sensor copier (1) E02 Trailing edge of paper not passing the exit sensor

Paper misfeeding E11 ADU misfeeding

Paper transport jam inside the E20 Paper fed from the upper cassette copier (2) not reaching the registration sensor

December 2000 © TOSHIBA TEC 1 - 1

Error Code

E03 Paper remaining inside the copier at power ON E09 HDD is abnormal

(paper not reaching the registration sensor)

E12 Bypass misfeeding

(paper not reaching the registration sensor)

E13 Upper cassette misfeeding

(paper not reaching the upper feed sensor)

E14 Lower cassette misfeeding

(paper not reaching the lower feed sensor)

E15 PFP upper cassette misfeeding

(paper not reaching the PFP upper feed sensor)

E16 PFP lower cassette misfeeding

(paper not reaching the PFP lower feed sensor)

E19 LCF misfeeding

(paper not reaching the LCF feed sensor)

E21 Paper fed from the lower cassette

not reaching the registration sensor

E22 Paper fed from the lower cassette

not reaching the upper feed sensor

E30 Paper fed from the PFP upper cassette

not reaching the registration sensor

E31 Paper fed from the PFP upper cassette

not reaching the upper feed sensor

E32 Paper fed from the PFP upper cassette

not reaching the lower feed sensor

E33 Paper fed from the PFP lower cassette

not reaching the registration sensor

E34 Paper fed from the PFP lower cassette

not reaching the upper feed sensor

E35 Paper fed from the PFP lower cassette

not reaching the lower feed sensor

E36 Paper fed from the PFP lower cassette

not reaching the PFP upper feed sensor

E3C Paper fed from the LCF

not reaching the registration sensor

E3D Paper fed from the LCF

not reaching the upper feed sensor

E3E Paper fed from the LCF

not reaching the lower feed sensor

Machine Status

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

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Group

Cover open jam E40 Jam access cover opened during printing

Transport jam (ADU and other area) E51 ADU stack jam (paper not reaching the ADU entrance sensor)

Transport jam (RADF) E71 Original feeding jam

Paper jam in finisher E91 Leading edge of paper not reaching the relay unit transport

Paper transport jam inside the EB5 Paper left on the transport path due to multiple feeding copier (3) EB6 Paper left on the transport path due to multiple feeding Drive system related service call C0 1 Main motor is abnormal

Error Code

E41 Front cover opened during printing E42 PFP side cover opened during printing E43 ADU opened during printing E44 Side cover opened during printing E45 LCF side cover opened during printing E48 Relay unit opened during printing

E52 ADU transport jam (paper not reaching the ADU exit sensor) E55 Paper remaining on the transport path when CRUN is OFF

E72 Original transport jam E73 Original discharging jam E74 Original reversing jam

sensor-1

E92 Trailing edge of paper not passing the relay unit transport sen-

sor-1

E93 Leading edge of paper not reaching the relay unit transport

sensor-2

E94 Trailing edge of paper not passing the relay unit transport sen-

sor-2

E9F Punching jam EA1 Finisher paper transport delay jam EA2 Finisher paper transport stop jam EA3 Paper remaining inside the finisher at power ON EA4 Finisher front door opened during printing EA5 Finisher stapling jam EA6 Finisher early arrival jam EA7 Stack transport jam before stapling EA8 Saddle stitcher stapling jam EA9 Saddle stitcher door opened during printing EAA Paper remaining at the saddle stitcher at power ON EAB Saddle stitcher paper transport stop jam EAC Saddle stitcher paper transport delay jam EAD Print end command time-out jam EAE Receiving time time-out jam EAF Stapled stack transport jam EB3 Ready time time-out jam

Machine Status

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 2 December 2000 © TOSHIBA TEC

Page 10

Group

Paper feeding system related service call

Scanning system related service call C2 6 Peak detection error

Fuser unit related service call C4 1 Thermistor or heater is abnormal at power ON

Communication related service call C55 ADF I/F is abnormal

RADF related service call C7 1 ADF feed motor is abnormal

Laser optical unit related service call CA 1 Polygonal motor is abnormal

Error Code

C0 4 PFP motor is abnormal

(paper can be fed from cassettes other than PFP cassette)

C1 3 Upper cassette tray is abnormal (paper can be fed from the

cassettes other than the copier cassettes)

C1 4 Lower cassette tray is abnormal (paper can be fed from the

cassettes other than the copier cassettes)

C1 5 PFP upper cassette tray is abnormal (paper can be fed from

the cassettes other than the PFP upper cassette)

C16 PFP lower cassette tray is abnormal (paper can be fed from the

cassettes other than the PFP lower cassette)

C1 8 LCF tray-up motor is abnormal

(paper can be fed from the cassettes other than the LCF cassette)

C1A LCF end fence motor is abnormal

(paper can be fed from the cassettes other than the LCF cassette)

C1B LCF motor is abnormal

(paper can be fed from the cassettes other than the LCF cassette)

C2 7 Carriage home position sensor not going OFF within a fixed

time

C28 Carriage home position sensor not going ON within a fixed

time

C4 3 Thermistor is abnormal after abnormality judgment C4 4 Fuser is abnormal after abnormality judgment C45 Side thermistor is abnormal after the copier has become ready C4 7 IH power voltage is abnormal/IH initialization error C4 8 IGBT high temperature C4 9 IH circuit or coil is abnormal

C5 7 Communication error between main CPU and IPC board C5 8 Communication error between IPC board and finisher

F07 Communication error between SYS board and LGC board

F11 Communication error between SYS board and SLG board

C7 3 EEPROM initialization error C7 4 Reverse sensor adjustment error C8 1 Fan motor is abnormal C8 2 Read sensor adjustment error C8 3 Original length sensor adjustment error

CA2 H-Sync detection error

Machine Status

December 2000 © TOSHIBA TEC 1 - 3

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 11

Group

Finisher related service call CB1 Feed motor is abnormal

Service call for others C 9 4 Main CPU is abnormal

Error Code

CB2 Delivery motor is abnormal CB3 Tray lift motor is abnormal CB4 Alignment motor is abnormal CB5 Staple motor is abnormal CB6 Stapler shift motor is abnormal CB7 Height sensor is abnormal CB8 Backup RAM data are abnormal CB9 Saddle stitcher paper pushing plate motor is abnormal CBA Saddle stitcher stitch motor (front) is abnormal CBB Saddle stitcher stitch motor (rear) is abnormal

CBC Saddle stitcher alignment motor is abnormal CBD Saddle stitcher guide motor is abnormal CBE Saddle stitcher paper folding motor is abnormal

CBF Saddle stitcher paper positioning plate motor is abnormal

CC 0 Saddle stitcher sensor connector connection error CC 1 Saddle stitcher microswitch error CC 2 Communication error between finisher and saddle stitcher CC 3 Stack processing motor is abnormal CC 4 Swing motor is abnormal CC 5 Horizontal registration motor is abnormal CC 6 Punch motor is abnormal CC 8 Front jogging motor is abnormal CC 9 Upper stack tray lift motor is abnormal CCA Lower stack tray lift motor is abnormal CCB Rear jogging motor is abnormal

F10 HDD initialization error

Machine Status

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 4 December 2000 © TOSHIBA TEC

Page 12

<<Error history (08-253)>> (Example of display)

Copy mode A Paper source

0: Not selected 1: Bypass feeding 2: LCF 3: PFP(U) 4: Not used 5: PFP(L) 6: ADU feeding 7: Upper cassette 8: Lower cassette

B Paper size code

0: Not selected 1: A5-R 2: ST-R 3: LT 4: A4 5: B5-R 6: LT-R 7: A4-R 8: O THER/UNIV 9: B5 A: FOL/COM B: LG C: B4 D: LD E: A3 F: 13'LG G: 8.5*8.5 H: 8K I:16K J:16K-R

C Sort mode/Staple mode

0: Not selected 1: Group 2: Sort 7: Staple (stapling one corner -1) 8: Staple (stapling 2 places) 9: Staple (stapling one corner -2) A: Saddle stitch

D ADF mode

0: Not used 1: A UTO FEED (SADF) 2: STACK FEED

E APS/AMS mode

0: Not selected 1: APS 2: AMS

F Duplex mode

0: Not selected 1: BOOK 2: Two-sided/Single-sided 4: Two-sided/Duplex 8: Single-sided/Duplex

G Not used

0: Not used

H Image shift

0: Not used 1: BOOK 2: LEFT 3: RIGHT

I Editing

0: Not used 1: Masking 2: Trimming 3: Mirror image 4: Negative/Positive

J Edge erasing/Dual-page

0: Not used 1: Edge erase 2: Dual-page 3: Edge erase & Dual-page

K Not used

0: Not used

L Function

0: Not used 1: Copying 2: Fax input 3: Fax printing 4: LAN printer 5: DSS

EA1

Error code

3 digits

0 0 1 2 2 6 1 7 5 7 3 2

YYMMDDHHMMSS

with its last 2 digits)

6 4

MMM

3 digits

3 digits12 digits (Year indicated

6 4

NNN

2 3 6 2 1 0 0 0 0 0 0 0 ABCDEFGHIJKL

12 digits

Reproduction ratio MMM Primary scanning reproduction ratio

Shown in hexadecimal

NN N Secondary scanning reproduction ratio

Shown in hexadecimal

The latest 8 error data can be displayed in the setting mode (08-253).

December 2000 © TOSHIBA TEC 1 - 5

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 13

1.2 Self-Diagnosis Modes

Since this copier is designed to cope with multifunctions such as those of a network printer and DSS, there are many setting items which are related to each other in the self-diagnosis modes. Malfunctions such as machine locking can be caused by the internal structural problem of the program when a normal operation is attempted by pressing [0] and [9] simultaneously or [C/S] on the control panel subsequently to the adjustment. Therefore, turn OFF the power after using the self-diagnosis mode for adjustment after unpacking, service or prev entive maintenance , and then leav e the machine to the customer .

Mode

Whole control panel items lighting mode Test mode

Test print mode

Adjustment mode

Setting mode

List printing mode

Unit replacement mode

Note: To enter the desired mode, turn ON the power while two digital keys designated to each mode (e.g. [0] and

[5]) are pressed simultaneously.

Keys to

press exit

[0]+[1]+

[POWER]

[0]+[3]+

[POWER]

[0]+[4]+

[POWER]

[0]+[5]+

[POWER]

[0]+[8]+

[POWER]

[9]+[ST AR T] +[ POWER]

[6]+[ST ART]

+[ POWER]

All LEDs on the control panel are lit, and all the LCD pixels flash. Checks the status of input/output signals.

Outputs the test patterns.

Adjusts various items.

Sets various items.

Prints out the lists for the codes 05 and 08.

Performs auto-toner adjustment and clears the process counters.

Function

Keys to

[C/S]or

[0]+[9] [0]+[9]

[0]+[9]

[POWER]

OFF

[POWER]

OFF

Display

100% C TEST MODE

100% P A4 TEST PRINT

100% A A4 TEST MODE

100% D TEST MODE

100% L A4 LIST PRINT

100% K TEST MODE

• Whole control panel items lighting mode (01):

[0] [1]

[POWER]

Notes: 1. The mode can be canceled only by pressing the [C/S] key during the key check.

2. Key Check Keys with LED (Press to turn OFF the LED)

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

(All control

panel LEDs lit)

Keys without LED (Press to display the message on the control panel)

[START]

(Key check) [C/S] (Exit)

1 - 6 December 2000 © TOSHIBA TEC

[C/S] or [0] [9]

(Exit)

Page 14

• Test mode (03): Refer to “1.2.1 Input check (test mode 03)” and “1.2.2 Outpout check (test mode 03)”.

• Test print mode (04): Refer to “1.2.3 Test print mode (04)”.

• Adjustment mode (05): Refer to “1.2.4 Adjustment mode (05)”.

• List print mode

[9] [START]

[POWER]

(code)

101:05 adjustment mode

(List starts to be printed)

102: 08 setting mode

• Unit replacement mode

[6] [START]

[POWER]

(code) [POWER] OFF

1: Auto-toner adjustment 2: Drum life counter resetting (08-401) 3: Resetting of the copier running time counter (08-402) and fuser unit counter (08-403) 4: Resetting of the separation charger life counter (08-497)

[STA RT]

(Operation started)

• Setting mode (08): Refer to “1.2.5 Setting mode (08)”.

[POWER] ON

Warming up

Normal

[C/S]

Whole control panel items lit

[0][1] [0][3]

Test mode

[0][5]

Adjustment mode

[0][9][0][9]

Setting mode [0][9]

[STA RT]

[0][8] [0][4] [9][S]

T est print mode

[0][9]

[POWER] OFF

List print mode

[6][S]

Unit replacement mode

Standby

[0][5]

[POWER] OFF

To user

[S]: START key [C/S]: CLEAR/STOP key

State transition diagram of self-diagnosis mode

*1 Only when the copier is put into the adjustment mode by turning ON the power while the digital keys

[0] and [5] are pressed simultaneously and then becomes standby state by pressing [0] and [9] simultaneously, it can go back to the adjustment mode by the pressing of [0] and [5] simultaneously.

*2 In the “whole control panel items lighting mode”, copying is disabled. Enter the standby state by

pressing [0] and [9] simultaneously or [C/S] key to perform copying.

*3 Turn OFF the power after using the self-diagnosis mode, and leave the copier to the user .

December 2000 © TOSHIBA TEC 1 - 7

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 15

1.2.1 Input check (test mode 03)

The state of each input signal can be checked b y pressing the [FAX] key and the digital keys in the test mode (03).

[0] [3]

[POWER]

Note: Initialization is performed before the copier enters the test mode.

[ST ART] ([F AX]) [Digital key] (LCD ON) [0] [9]

(Exit)

[Example of display during input check]

Items to be checked and the state of the copier with the icons [A] to [H] displayed in black are listed on the following pages.

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 8 December 2000 © TOSHIBA TEC

Page 16

[FAX] key: OFF ( [FAX] LED: OFF)

Digital

key with black icon

Icon Items to check

A— B LCF connection Not connected C—

[1]

[2]

[3]

[4]

[5]

[6]

D Bypass feed sensor Paper does not exist E ADU connection Not connected F ADU opening/closing switch ADU opened G ADU exit sensor There is paper H ADU entrance sensor There is paper A— B— C PFP upper cassette paper-stock sensor Paper is almost finished D PFP upper feed sensor There is paper E PFP connection Not connected F PFP side cover opening/closing switch Cover opened G PFP upper cassette paper-empty sensor No paper H PFP upper cassette tray-up sensor Tray at upper limit position A LCF tray bottom sensor Tray at bottom position B LCF paper mis-insertion detection sensor Paper not inserted properly C— D— E— F— G— H LCF feed side paper-stock sensor Paper is almost finished A— B— C PFP lower cassette paper-stock sensor Paper is almost finished D PFP lower feed sensor There is paper E PFP motor rotation condition (motor is being rotated in the output check (03)) Abnormal rotation F— G PFP lower cassette paper-empty sensor No paper H PFP lower cassette tray-up sensor Tray at upper limit position A LCF end fence home position sensor Fence at home position B LCF end fence stop position sensor Fence at stop position C LCF standby side paper-empty sensor No paper D LCF side cover opening/closing switch Cover closed E LCF motor rotation condition (motor is being rotated in the output check (03)) Abnormal rotation F LCF tray-up sensor Tray at upper limit position G LCF feed sensor No paper H LCF feed side paper-empty sensor No paper A— B— C— D— E Upper feed sensor There is paper F— G Upper cassette paper-empty sensor No paper H Upper cassette tray-up sensor Tray at upper limit position

Copier state

December 2000 © TOSHIBA TEC 1 - 9

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 17

Digital

key with black icon

Icon Items to check

A— B— C—

[7]

[8]

[9]

[0]

D— E Lower feed sensor There is paper F— G Lower cassette paper-empty sensor No paper H Lower cassette tray-up sensor Tray at upper limit position A Bypass feed paper width sensor-3 See table 1. B Bypass feed paper width sensor-2 See table 1. C Bypass feed paper width sensor-1 See table 1. D Bypass feed paper width sensor-0 See table 1. E— F— G— H PFP upper cassette detection sensor No cassette A— B— C— D PFP lower cassette detection sensor No cassette E— F— G Upper cassette detection sensor No cassette H Upper cassette paper-stock sensor Paper is almost finished A— B— C— D LCF cassette detection switch No cassette E— F— G Lower cassette detection sensor No cassette H Lower cassette paper-stock sensor Paper is almost finished

Copier state

Table 1. Relation between the state of the bypass feed paper width sensor and paper siz e (width).

Bypass paper width sensor

3210

0 1 1 1 A3/LD 1 0 1 1 A4-R/LT-R 1 1 0 1 A5-R/ST-R 1 1 1 0 Card size 0 0 1 1 B4-R/LG 1 0 0 1 B5-R

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Paper width size

1 - 10 December 2000 © TOSHIBA TEC

Page 18

[FAX] key: ON ([FAX] LED: ON)

Digital

key with black icon

Icon Items to check

A— B— C—

[1]

[2]

[3]

[4]

[5]

D IPC board connection Not connected E— F Polygonal motor rotation condition (motor is being rotated in the output check (03)) Abormal rotation G Toner cartridge detection switch OFF H 24V power supply OFF A Registration sensor There is paper B Exit sensor There is paper C Auto-toner sensor connection Not connected D Front cover switch Cover opened E— F— G Side door switch Side cover opened H Main motor rotation condition (motor is being rotated by in the output check (03)) Abormal rotation A— B Key copy counter connection Not connected C Toner bag full detection sensor Toner is full D Fuser unit connection Unit connected E Relay unit transport sensor-2 No paper F Relay unit opening/closing switch Cover opened G— H Relay unit paper full detection sensor Paper not full A— B— C— D— E— F— G Relay unit installation Not installed H Relay unit transport sensor-1 No paper A— B— C— D— E— F RADF connection RADF connected G Platen sensor Platen cover opened H Scanner carriage home position sensor Home position

Copier state

December 2000 © TOSHIBA TEC 1 - 11

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 19

Digital

key with black icon

Icon Items to check

A— B— C—

[6]

[7]

[8]

[9]

[0]

D APS sensor (APS-5/for A4 series) / (APS-6/for LT series) No original E APS sensor (APS-4/for A4 series) No original F APS sensor (APS-3) No original G APS sensor (APS-2) No original H APS sensor (APS-1) No original A RADF tray sensor Original present B RADF empty sensor Original present C RADF jam access cover opening/closing switch Cover opened D RADF opening/closing sensor RADF opened E RADF exit sensor Original present F RADF reverse sensor Original present G RADF read sensor Original present H RADF registration sensor Original present A— B— C— D— E RADF original length sensor Original present F RADF original width sensor-1 Original present G RADF original width sensor-2 Original present H RADF original width sensor-3 Original present A— B— C— D— E— F— G— H— A— B— C— D— E— F— G— H—

Copier state

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 12 December 2000 © TOSHIBA TEC

Page 20

1.2.2 Output check (test mode 03)

State of the output signals can be checked by entering the codes in the following table in the test mode 03.

<Operation procedure> Group (1)

[0] [3]

[POWER]

(Code) [START ]

Operation

started

Code to stop

operation

[START]

Operation

stopped

[0] [9] (Exit)

Warming up

Group (2)

[0] [3]

[POWER]

(Code)

[STAR T]

Operation (One direction)

[C/S] [0] [9]

Test mode

standby

Warming up

(Exit)

Group (3)

[0] [3]

[POWER]

(Code) [START] [START] [C/S] [0] [9]

Operation

started

Operation

stopped

Test mode

standby

(Exit)

Warming up

Group (4)

[0] [3]

[POWER]

Code Function Code Function Procedure

10 1 Main motor ON 15 1 Code 101 operation OFF 1 10 2 Toner motor ON 152 Code 102 operation OFF 1 10 3 Polygonal motor (600dpi) ON 1 53 Code 103 operation OFF 1 10 8 Registration clutch ON 15 8 Code 108 operation OFF 1 109 PFP motor ON 159 Code 109 operation OFF 1 11 0 ADU motor (215mm/s) ON 16 0 Code 110 operation OFF 1 11 8 Laser ON 1 68 Code 118 operation OFF 1 12 0 Exit motor ON / forward rotation 17 0 Code 120 operation OFF 1 12 1 Exit motor ON / reverse rotation 17 1 Code 121 operation OFF 1 12 2 LCF motor ON 17 2 Code 122 operation OFF 1 201 Upper cassette feed clutch ON/OFF 3 202 Lower cassette feed clutch ON/OFF 3 20 3 Transport clutch (high speed) ON/OFF 3 204 Bypass feed clutch ON/OFF 3 20 5 Transport clutch (low speed) ON/OFF 3 20 6 LCF pickup solenoid ON/OFF 3

(Code)

[START]

[POWER] OFF

December 2000 © TOSHIBA TEC 1 - 13

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 21

Code Function Procedure

20 7 LCF end fence reciprocating movement 2 208 LCF end fence motor ON/OFF 3 209 LCF feed clutch ON/OFF 3 210 LCF transport clutch ON/OFF 3 211 RADF feed motor ON/OFF / forward rotation 3 212 RADF feed motor ON/OFF / reverse rotation 3 213 RADF read motor ON/OFF / forward rotation 3 214 RADF read motor ON/OFF / reverse rotation 3 215 RADF reverse motor ON/OFF / forward rotation 3 216 RADF reverse motor ON/OFF / reverse rotation 3 21 7 Sub-separation fan ON/OFF 3 21 8 Key copy counter count-up 2 21 9 Middle cooling fan ON/OFF 3 222 ADU clutch ON/OFF 3 225 PFP transport clutch ON/OFF 3 226 PFP upper cassette feed clutch ON/OFF 3 228 PFP lower cassette feed clutch ON/OFF 3 23 2 Relay unit gate solenoid ON/OFF 3 23 5 Discharge lamp ON/OFF 3 23 6 Exhaust fan (low speed) ON/OFF 3 23 7 Exhaust fan (high speed) ON/OFF 3 23 8 IH control board cooling fan / developer unit cooling fan ON/OFF 3 24 1 Fuser unit cooling fan ON/OFF 3 24 2 Upper cassette tray-up motor ON (tray raised) 2 24 3 Lower cassette tray-up motor ON (tray raised) 2 24 8 Developer bias +DC ON/OFF 3 24 9 Developer bias -DC1 ON/OFF 3 252 Main charger ON/OFF 3 25 3 Separation charger ON/OFF 3 25 5 Transfer guide bias ON/OFF 3 25 6 Transfer charger ON/OFF 3 261 Scanner motor ON (automatically stops at the limit position, speed can be changed by the ZOOM keys) 2 26 7 Scanner exposure lamp ON/OFF 3 26 8 Laser unit fan (high speed) ON/OFF 3 271 LCF tray-up motor UP/DOWN 2 27 8 PFP upper cassette tray-up motor ON (tray raised) 2 28 0 PFP lower cassette tray-up motor ON (tray raised) 2 29 4 RADF reverse solenoid ON/OFF 3 29 5 Power OFF mode 4 297 RADF fan motor ON/OFF 3

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 14 December 2000 © TOSHIBA TEC

Page 22

1.2.3 T est print mode (test mode 04)

The built-in test pattern can be printed out by entering the following codes in the test print mode (04).

[0] [4]

[POWER]

Note: An error code is displayed on the control panel if an error occurs in the process, but no recovery operation

Code Types of test pattern Remarks

11 1 Primary scanning direction, 33 gradation steps, error diffusion 11 3 Secondary scanning direction, 33 gradation steps, error diffusion 142 Grid pattern (Pattern width: 2 dots, Pitch: 10 mm)

(Code) [STAR T] [0] [9]

(Test pr int)

is performed. Turn the power OFF and then back ON to clear the error.

[C/S]

Warming upOperation

(Exit)

December 2000 © TOSHIBA TEC 1 - 15

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 23

1.2.4 Adjustment mode (05)

Items in the adjustment code list on the following pages can be corrected or changed in this adjustment mode (05). Turn ON the power while the digital keys [0] and [5] are pressed sim ultaneously to enter this mode.

<Procedure> Group 1

[SET]

[0] [5]

[POWER]

[Digital key]

(Code)

[ST AR T] [0] [9]

[CANCEL]

[Digital key]

*[FC] key

(Enter a value)

(Corrects value)

[INTERRUPT]

(Stores value in RAM)

[C/S]

(Test copy)

[FAX]

(Exit)

* Press [FC] to enter “–”.

Group 2

[0] [5]

[POWER]

Group 3

[0] [5]

[POWER]

Group 4

[0] [5]

[POWER]

Group 5

[Digital key]

(Code)

[Digital key]

(Code)

[Digital key]

(Code)

[UP]

[START]

[C/S] or [CANCEL]

[CANCEL]

[START]

[ST ART] [0] [9]

[Digital key]

(Sub code)

[DOWN]

(Enter a value)

(Corrects value)

[START]

[C/S]

(Corrects value)

Automatic

adjustment

[SET]

[INTERRUPT]

(Stores value in RAM)

[RESET]

[Digital key] * [FC] key

Enter a

value

(Exit)

[0] [9] (Exit)

[SET]

[INTERRUPT]

(Stores value in

RAM)

[C/S]

(Corrects value)

* Press [FC] to enter “–”.

[F AX]

Test

copy

[0] [9] (Exit)

[0] [5]

[POWER]

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

[Cassette]

Selects

cassette

[Digital key]

Selects

output

pattern

1: Code 401, 421, 440~444 2: Code 445, 498

[F AX]

T est

copy

[Digital key] (Code)

[ST ART]

(Adjustment)

1 - 16 December 2000 © TOSHIBA TEC

[Digital key]

(Enter a value)

(Stores value in RAM)

[SET]

[INTERRUPT]

[0] [9]

(Exit)

Page 24

Adjustment mode (05)

Code Items to adjust Mode

Automatic adjustment of auto-toner

200

sensor (Fuser heater ON)

201

Manual adjustment of auto-toner sensor initial value(Fuser heater ON) Developer bias DC output adjustment

205

210

Main charger grid bias output adjustment T ransf er transformer DC output adjust-

221

ment/center value Separation transformer AC output

231

adjustment/center value Laser power adjustment

286

305

Adjustment of scanner secondary scanning start position deviation

306

Adjustment of scanner primary scanning start position deviation

308

Distortion mode

340

Adjustment of scanner secondary scanning reproduction ratio

354

Adjustment of for single-sided RADF paper paper alignment for double-sided

355

paper

Automatic adjustment of RADF sen-

356

sor and EEPROM initialization

357

Fine adjustment of RADF transport speed

358

RADF sideways deviation adjustment

ALL – –

ALL 128 0~255

ALL 193 0~255

ALL 158 0~255

ALL 117 0~255

ALL 159 0~255

ALL 117 0~255

ALL 128 0~255

ALL – –

ALL 128 0~255

ALL 10 0~20

ALL – –

ALL 50 0~100

ALL 128 0~255

Default

Accept-

able Contents

value

- As the value increases, the sensor output increases correspondingly.

- The value starts changing approx. 2 minutes after this adjustment was started and is automatically set in the range of 2.35 to 2.45V.

( chapter 2.2) Adjustment value of auto-toner sensor can be displayed. As the value increases by “1”, output from the transformer increases correspondingly. Remove the developer unit and install the service jig to make adjustment. However, the service jig is not necessary to adjust the developer bias DC. ( chapter 2.5) When the value increases by “1”, the laser output increases correspondingly. When the value increases by “1”, the image shifts toward the leading edge of paper by approx. 0.17mm. When the value increases by “1”, image shifts toward the rear side of paper by approx. 0.0423mm. Moves the carriages to the adjustment position. ( chapter 2.3.4) When the value increases by “1”, the reproduction ratio of the secondary scanning direction decreases by approx. 0.025%. When the value increases by “1”, the aligning amount increases by approx. 0.5mm.

Perf orm the adjustment and initialization when the PC board or sensor of the RADF is replaced. When the value increases by “1”, the reproduction ratio of the secondary scanning direction on original fed from the RADF increases by approx. 0.1%. When the value increases by “1”, the image of original fed from the RADF shifts toward the rear side of paper by approx. 0.0423mm.

Operation procedure

group

–

December 2000 © TOSHIBA TEC 1 - 17

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 25

Adjustment mode (05)

Code Items to adjust Mode

365

RADF leading for single-sided edge position paper adjustment for double-sided

366

paper

Fine adjustment of polygonal motor

401

rotation speed (Reproduction ratio

405

adjustment of primary scanning direction)

410

Adjustment of primary scanning laser

411

writing start position

421

Fine adjustment of For units other main motor rotation than the fax speed For the fax

422

(Reproduction ratio adjustment of secondary scanning direction) Top margin adjustment (blank area

430

at the leading edge of the paper) Left margin adjustment (blank area

431

at the left of the paper along the paper feeding direction) Right margin adjustment (blank area

432

at the right of the paper along the paper feeding direction) Bottom margin adjustment (blank

433

area at trailing edge of paper) Top margin adjustment (blank area

435

at the leading edge of the paper) Left margin adjustment (blank area

436

at the left of the paper along the paper feeding direction) Right margin adjustment (blank area

437

at the right of the paper along the paper feeding direction) Bottom margin adjustment (blank

438

area at the trailing edge of the paper)

440

Secondary Upper cassette

441

scanning laser Lower cassette

442

write start position Bypass feed 443 444 445

448-0

Paper aligning PFP upper cas-

amount adjustment sette/Long size

(at the copier regis- PFP upper cas-

448-1

tration section) sette/ Middle size

448-2

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

LCF PFP ADU

PFP upper cassette/Short size

ALL 50 0~100

PRT 133 0~255

PPC 129 0~255

PPC 128 0~255

PRT 128 0~255

ALL 13 8 0~255

FAX 139 0~255

PPC 0 0~255

PRT 24 0~255

PRT 0 0~255

ALL 7 0~15 ALL 24 0~40 ALL 8 0~15 ALL 8 0~15 ALL 8 0~15 ALL 8 0~15 ALL 10 0~63

ALL 10 0~63

ALL 8 0~63

Accept-

Default

1 - 18 December 2000 © TOSHIBA TEC

able Contents

value

When the value increases by “1”, the copied image of original fed from the RADF shifts toward the trailing edge of paper by approx. 0.1mm. When the value increases by “1”, the reproduction ratio of the primary scanning direction increases by approx. 0.07%. (approx.0.5mm/ 4steps) When the value increases by “1”, the writing start position shifts to the front side by approx. 0.0423mm. When the value increases by “1”, the reproduction ratio of the secondary scanning direction increases by approx. 0.055%. (approx. 0.5mm/4steps)

When the value increases by “1”, the blank area becomes wider by approx. 0.0423mm.

When the value increases by “1”, the image shifts toward the leading edge of paper by approx.

0.4mm.

When the value increases by “1”, the aligning amount increases by approx. 0.8mm. <Paper length> Long size: 330mm or longer Middle size: 220mm~329mm Short size: 219mm or shorter

Operation procedure

group

5 1

1 1

5 5 5 5 5 5 3

Page 26

Adjustment mode (05)

Code Items to adjust Mode

449-0

Paper aligning PFP lower cas-

amount adjustment sette/Long size

(at the copier regis- PFP lower cas-

449-1

tration section) sette/ Middle size

449-2

450-0

450-1

450-2

452-0

452-1

452-2

455-0 455-1 455-2

457

458-0

458-1

458-2

458-3

Fine adjustment of A4-R / LT-R

468-0

binding position / B4

468-1

folding position A3 / LD

468-2

Adjustment of LCF

497-4

sideways

deviation

Adjustment of ADU Long size

498-0

sideways Short size

498-1

deviation

Fine adjustment of Center value

501

manual density 503

504

505

506

507

PFP lower cassette/Short size Upper cassette /Long size Upper cassette /Middle size Upper cassette /Short size Lower cassette /Long size Lower cassette /Middle size Lower cassette /Short size ADU/Long size ADU/Middle size ADU/Short size LCF Bypass feed /Long size Bypass feed /Middle size Bypass feed /Short size Bypass feed /post card

(A4 / LT or smaller)

Light step value

ALL 10 0~63

ALL 8 0~63

ALL 20 0~63

ALL 22 0~63

ALL 19 0~63

ALL 12 0~63

ALL 10 0~63

ALL 38 0~63 ALL 38 0~63 ALL 38 0~63 ALL 8 0~63 ALL 28 0~63

ALL 28 0~63

ALL 21 0~63

ALL 24 0~63

ALL 0 -14~14 ALL 0 -14~14 ALL 0 -14~14 ALL 12 8 0~255

ALL 14 8 0~255 ALL 14 8 0~255

PPC 128 0~255

(Photo)

PPC 128 0~255

(Text/Photo)

PPC 128 0~255

(Text)

PPC 20 0~255

(Text/Photo)

PPC 12 0~255

(Photo)

PPC 26 0~255

(Text)

Accept-

Default

(25 for JPN)

(23 for JPN)

able Contents

value

When the value increases by “1”, the aligning amount increases by approx. 0.8mm. <Paper length> Long size: 330mm or longer Middle size: 220mm~329mm Short size: 219mm or shorter

When the value increases by “1”, the aligning amount increases by approx. 0.5mm. When the value increases by “1”, the aligning amount increases by approx. 0.8mm.

When the value increases by “1”, binding / folding position shifts toward the right page by 0.25mm. When the value increases by “1”, the image shifts toward the front side by 0.0423mm. When the value increases by “1”, the image shifts toward the front side by 0.0423mm. When the value increases, the image of the center step density becomes darker.

When the value increases, the image of the “light” steps becomes lighter.

Operation procedure

group

3 3 3 1 3

3 3 3 3

5 5

December 2000 © TOSHIBA TEC 1 - 19

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 27

Adjustment mode (05)

Code Items to adjust Mode

508

Fine adjustment of Dark step value

manual density 509

510

512

Fine adjustment of automatic density

514

515

570

Range correction on original

manually set on the original glass 571

572

593

Gamma data slope adjustment

594

595

620

Sharpness adjustment (HPF inten-

sity) 621

622

PPC 20 0~255

(Text/Photo)

PPC 25 0~255

(Photo)

PPC 14 0~255

(Text)

PPC 128 0~255

(Photo)

PPC 128 0~255

(Text/Photo)

PPC 128 0~255

(Text)

PPC 12 11~14,

(Text/Photo)

PPC 12 31~34,

(Photo) 41~44

PPC 44

(Text)

PPC 0 0~9

(Text/Photo)

PPC 0 0~9

(Photo)

PPC 0 0~9

(Text)

PPC 1 0~99

(Text/Photo)

PPC 2 0~99

(Photo)

PPC 5 0~99

(Text)

Accept-

Default

value

(12 for JPN)

(8 for JPN)

(44 for JPN)

21~24,

able Contents

When the value increases, the image of the “dark” steps becomes darker.

When the value increases, the image becomes darker.

Set whether the value of the background peak and text peak are fixed or not. If they are fixed, the range correction is performed with standard values. The values of the background peak and text peak affect the reproduction of the background density and text density respectively.

Background peak Text peak 1: fixed fixed 2: varied fixed 3: fixed varied 4: varied varied When the value increases, the image becomes darker.

The number of units: Enter one of the following fixed values in the copying mode. 1: Text/Photo 2: Photo 5: Text The number of tens: intensity 0: default value 1 to 9: when the value increases, the image becomes sharper.

• In case of Te xt/Photo mode (code

620), 2 1

Fixed value for the Text/ Photo mode Enter a number (0 to 9)

Operation procedure

group

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 20 December 2000 © TOSHIBA TEC

Page 28

Adjustment mode (05)

Code Items to adjust Mode

693

Range correction on original set on the RADF

694

695

PPC 12 11~14,

(Text/Photo)

PPC 12 31~34,

(Photo) 41~44

PPC 44

(Text)

Accept-

Default

(44 for JPN)

21~24,

able Contents

value

Background peak Text peak 1: fixed fixed 2: varied fixed 3: fixed varied 4: varied varied

Operation procedure

group

December 2000 © TOSHIBA TEC 1 - 21

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 29

1.2.5 Setting mode (08)

The items in the setting code list can be set or changed in this setting mode (08).

<Procedure> Group 1

[CANCEL]

[0] [8]

[POWER]

[Digital key]

(Code)

[START]

[Digital key]

[Select icon]

Sets or

changes value

(Corrects value)

[C/S]

[SET]

or [INTERRUPT] (Stores value in RAM)

Group 2

[0] [9] (Exit)

[0] [8]

[POWER]

Group 3

[0] [8]

[POWER]

[Digital key]

(Code)

[Digital key]

(Code)

[START]

[SET]

[INTERRUPT]

Adjustment value

cannot be changed

[CANCEL]

[START] [Digital key]

(1st setting)

(Corrects value)

[0] [9] (Exit)

[START] [Digital key]

[C/S]

(2nd setting)

(Corrects value)

[SET]

[INTERRUPT]

(Stores value in RAM)

[C/S]

[0] [9] (Exit)

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 22 December 2000 © TOSHIBA TEC

Page 30

Code Name Mode Default

200

Date and time setting

201

Destination selection

202

Setting for externally installed copy counter

203

Line adjustment mode

204

Auto clear timer setting

205

Energy saver timer setting

206

Auto-power off timer setting

220

Language displayed at power ON

224

Paper size for bypass feed Paper size for upper cas-

225

sette

226

Paper size for lower cassette

227

Paper size for PFP upper cassette

228

Paper size for PFP lower cassette

ALL – 13 digits

ALL 0:EUR 0~2

1:UC

2:JPN

ALL 0 0~3

ALL 0 0~1

ALL 3 0~10

ALL 11 0~15

ALL 9 0~20

ALL 0 0~4

ALL UNDEF 0~255

ALL JPN:A4 0~255

UC: LT

EUR:A4

ALL JPN:A3 0~255

UC: LD

EUR:A3

ALL JPN:A4-R 0~255

UC: LT-R

EUR:A4-R

ALL JPN:B4 0~255

UC: LG

EUR:A4

Setting mode (08)

Accept-

able

Value

Year / month / date / day / hour / minute / second Example: 00 03 01 5 13 27 49 0:EUR 1:UC 2:JPN

0: External copy counter not used 1: Coin controller 2: Copy key card 3: Key copy counter 0: For factory shipment 1: For line *Field: ‘0' must be selected *Need to be checked when K-SRAM was changed. Timer to return the machine to the default settings when the [START] key is not pressed after the function and mode were set. 0: Max. (150 sec.) 1 to 10: Set number X 15 sec. Timer to automatically switch to the energy saving mode when the copier has not been used. 0: Disabled 1: 30sec. 2: 60sec. 3: 90sec. 4: 120sec. 5: 150sec. 6: 3min. 7: 4min. 8: 5min. 9: 7min. 10: 10min. 11: 15min. 12: 20min. 13: 30min. 14: 45min. 15: 60min. Timer to automatically turn OFF the power when the copier has not been used. 0: 3min. 1: 5min. 2: 10min. 3: 15min. 4: 20min. 5: 25min. 6: 30min. 7. 40min

8. 50min. 9: 60min. 10: 70min. 11. 80min.

12. 90min. 13. 100min. 14. 110min.

15. 120min. 16. 150min 17. 180min.

18. 210min. 19. 240min. 20. Not used 0: Language1 1: Language2 2: Language3 3: Language4 4: Language5 Press the icon on the LCD to select the size Press the icon on the LCD to select the size

Press the icon on the LCD to select the size

Contents

Operation procedure

group

December 2000 © TOSHIBA TEC 1 - 23

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 31

Code Name Mode Default

Paper size (A3)

229

feeding/widthwise direction Paper size (A4-R)

230

feeding/widthwise direction Paper size (A5-R)

231

feeding/widthwise direction Paper size (B4)

232

feeding/widthwise direction Paper size (B5-R)

233

feeding/widthwise direction Paper size (LT-R)

234

feeding/widthwise direction Paper size (LD)

235

feeding/widthwise direction Paper size (LG)

236

feeding/widthwise direction Paper size (ST-R)

237

feeding/widthwise direction Paper size (COMPUTER)

238

feeding/widthwise direction Paper size (FOLIO)

239

feeding/widthwise direction Paper size (13 inch LG)

240

feeding/widthwise direction Paper size (8.5X8.5inch)

241

feeding/widthwise direction Paper size (Non-standard)

242

feeding/widthwise direction Paper size (8K)

244

feeding/widthwise direction Paper size (16K-R)

245

feeding/widthwise direction Service call telephone

250

number

PM counter setting value

251

PM counter current value

252

Error history display

253

PFP/LCF installation

255

Paper size for LCF

256

ALL 420/297 182~432

ALL 297/210 182~432

ALL 210/148 182~432

ALL 364/257 182~432

ALL 257/182 182~432

ALL 279/216 182~432

ALL 432/279 182~432

ALL 356/216 182~432

ALL 216/140 182~432

ALL 356/257 182~432

ALL 330/210 182~432

ALL 330/216 182~432

ALL 216/216 182~432

ALL 432/279 148~432

ALL 390/270 182~432

ALL 270/195 182~432

ALL 0 14 digits

ALL

DP4500: 150000 DP3500: 116000

(0 for JPN) ALL 0 ALL – – ALL 0 0~4

ALL JPN:A4 0~255

UC: LT

EUR:A4

Setting mode (08)

Accept-

able

Value

/140~297

/105~297

/140~297

Telephone numbers up to 14 digits can be entered. Use the HELP/INFO key to enter a hyphen (-).

0~99999999

Displays the latest 8 error data. 0: Automatic 1: PFP single cassette type installed 2: PFP two cassette type installed 3: LCF installed 4: PFP/LCF not installed Press the icon on the LCD to select the size

Contents

Operation procedure

group

1 2 1

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 24 December 2000 © TOSHIBA TEC

Page 32

Code Name Mode Default

Copying total counter

257

value

MAX9 selection

300

Original counter display

302

Screen selection

331

A3/LD double count set-

352

ting Upper cassette counter

356

Lower cassette counter

357

Bypass feed counter

358

LCF counter

359

PFP upper cassette

360

counter Copy scan counter

361

Copy counter

362

Fax scan counter

363

Fax transmission coun-

364

ter Fax reception counter

365

Fax/list counter

366

Printer counter

367

DSS scan counter

368

PFP lower cassette

370

counter ADU counter

372

ADF counter

374

HDD error counter

390

HDD error counter

391

HDD error counter

392

ALL – 1~2

PPC 0 0~2

ALL 0 0 or 2

EUR : 2 ALL 0 0~1 ALL 1 0~1

ALL 0

ALL 0 ALL 0 ALL 0

ALL 0

PPC 0 0~32767

FAX 0 0~32767

LAN 0 0~32767 DSS

Setting mode (08)

Accept-

able

Value

1: > (Counter value displayed at left is

2: < (Counter value displayed at right is

0:999 1:99 2:9 0: Not displayed 2: Displayed

0: Copy 1: FAX 0: Single count 1: Double count

0~99999999

0~99999999 0~99999999 0~99999999

0~999999999

0~99999999

Counter for paper fed from the upper cassette Counter for paper fed from the lower cassette Counter for paper fed from the bypass tray Counter for paper fed from LCF Counter for paper fed from the PFP upper cassette Counts number of scannings in the copying mode. Counts number of printings in the copying mode. Counts number of scannings in the fax transmission mode. Counts number of documents transmitted

Counts number of polling documents received Counts number of fax documents and lists/ reports (including group list) which are output Counts number of printings in the printer mode Counts number of scannings in the DSS scanner mode Counts paper fed from the PFP lower cassette Counts number of automatic duplex copies Counts papers fed from ADF Reset by HDD formatting Reset by HDD formatting Reset by HDD formatting

Contents

overwritten on the counter value on the right)

overwritten on the counter value on the left) ( 1-32)

Operation procedure

group

–

1 1

1 1 1

1 2 2 2

December 2000 © TOSHIBA TEC 1 - 25

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 33

Code Name Mode Default

Fuser roller thermistor

400

error counter

Drum life counter

401

(enter 0 to reset the counter) Copier running time

402

counter (enter 0 to reset the counter) Fuser unit counter

403

(enter 0 to reset the counter) Developer material

404

counter (enter 0 to reset the counter) Pre-running time before

408

1st print (thick paper)

Fuser roller temperature

410

during printing

Fuser roller temperature

411

during standby state

Fuser roller temperature

412

in energy saver mode Fuser roller temperature

413

for thick paper Correction of toner den-

414

sity adjustment value

Correction of toner sup-

455

ply amount

Setting for switchback

462

operation to copy mixedsized original on RADF Speed switching of sub-

469

separation fan

ALL 0 0~19

ALL 0

ALL 0 0~15

ALL 12 0~14

ALL 12 0~12

ALL 0 0~1

ALL 2 0~4

ALL 0 0~8

ALL 0 0~2

ALL 0 0~1

Setting mode (08)

Accept-

able

Value

0: No error 1: C41 occurred once 2: C41 occurred continuously 3: Not used 4: Error C43 5: Error C44 6: Error C43 7: Error C44 8: Error C45 9: Error C44 10: Error C47 11: Error C47 12: Error C48 13: Error C49 14: Error C47 15: Error C48 16: Error C49 17: Error C47 18: Error C48 19: Error C49

0~99999999

Counts drum rotation time (sec.)

Counts the copier running time (min.)

Counts the fuser roller rotation time (sec.)

Counts the total consumed paper (Long size: double count)

0: Not used 1: 1sec. 2: 2sec. 3: 3sec. 4: 4sec. 5: 5sec. 6: 6sec 7: 7 sec 8: 8sec. 9: 9sec. 10: 10sec. 11: 12 sec. 12: 14sec. 13: 16sec. 14: 18sec. 15: 20sec. 0: 140°C 1: 145°C 2: 150°C 3: 155°C 4: 160°C 5: 165°C 6: 170°C 7: 175°C 8: 180°C 9: 185°C 10: 190°C 11: 195°C 12: 200°C 13: 205°C 14: 210°C 0: 140°C 1: 145°C 2: 150°C 3: 155°C 4: 160°C 5: 165°C 6: 170°C 7: 175°C 8: 180°C 9: 185°C 10: 190°C 11: 195°C 12: 200°C 0: OFF 1: 100°C

0: Not used 1: 195°C 2: 200°C 3: 205°C 4: 210°C Corrects the toner density adjustment value set in 05-201. 0: 0 bit (No correction) 1: +3 bit 2: +6 bit 3: +9 bit 4: +12 bit 5: -3 bit 6: -6 bit 7: -9 bit 8: -12 bit Corrects the rotation time of the toner motor during toner supply 0: 100% 1: 90% 2: 80% 0: Disabled 1: Enabled

0: High speed 1: Low speed

Contents

Operation procedure

group

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 26 December 2000 © TOSHIBA TEC

Page 34

Code Name Mode Default

Paper source priority

480

selection

Paper source automatic

481

alternation

Feeding retrying

482

Pre-running rotation of

483

polygonal motor

Auto-stop of pre-running

484

rotation of polygonal motor Rotation of polygonal

485

motor during the standby state Auto-stop timer for pre-

486

running rotation of polygonal motor Polygonal motor rotation

489

number during the standby state Polygonal motor rotation

490

in the energy saver mode Separation charger life

497

counter (enter 0 to reset the counter) Density mode priority

503

selection at power on Copy mode priority se-

550

lection Screen setting for auto-

602

matic energy saver/automatic power off Setting for automatic

603

duplexing mode

APS priority selection

604

ALL 0 0~5

ALL 1 0~2

ALL 0 0~1 ALL 0 0~2

ALL 0 0~1

ALL 0 0~2

ALL 5 0~5

ALL 0 0~1

ALL 0

PPC 0 0~1

PPC 0 0~2

ALL 1 0~1

EUR: 0

PPC 0 0~3

PPC 0 0~2

Setting mode (08)

Accept-

able

Value

0: A4/LT 1: LCF 2: Upper cassette 3: Lower cassette 4: PFP upper cassette 5: PFP lower cassette Set if the cassette is automatically changed to the other cassette which has the paper of the same size when paper in the selected cassette has run out. 0: OFF 1: ON (Changed to the cassette which has the same

2: ON (Changed to the cassette which has the same

0: ON 1: OFF 0: ON (Motor starts rotating when original

1: OFF 2: ON (Motor starts rotating when original

0: Motor stops (according to the setting

1: Motor not stopped 0: Rotated (corresponding to the setting

1: Stopped 0: 15 sec. 1: 30sec. 2: 45sec. This setting only effective when 08-484 is set to “0” 0: 38090.55[rpm] 1: 35000[rpm] 2: 30000[rpm] 3: 25000[rpm] 4: 20000[rpm] 5: 10000[rpm] 0: Stopped 1: 10000[rpm]

0~99999999

Counts the total number of consumed paper (Long size: double count)

0: Automatic density 1: Manual density

0: Text/Photo 1: Photo 2: Text

0: Display OFF 1: Display ON

0: Disabled 1: Single-sided to duplex 2: Two-sided to duplex 3: User selection 0: APS 1: AMS 2: None

Operation

Contents

paper direction and size: ex. A4 to A4)

paper size. Paper with the different direction is acceptable as long as the size is the same: ex. A4 to A4-R, L T-R to L T)

is placed on the RADF tray or original glass.

is placed on the RADF tray.

vaue in 08-486)

value in 08-489)

procedure

group

1 1

December 2000 © TOSHIBA TEC 1 - 27

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 35

Code Name Mode Default

RADF priority mode se-

607

lection

BOOK duplex copy

611

Summer time mode

612

Paper size designation

613

for OTHER key

Original size priority

618

(same/mixed size) Time lag before auto-

619

start of bypass feeding

Blank copying preven-

625

tion mode during RADF jamming Outer guide elimination

626

when paper size is not selected for a bypass feed printing

Rotation printing in the

627

non-sort mode for original fed from RADF

Direction priority of origi-

628

nal image Department manage-

629

ment setting

PPC 0 0~1

ALL 0 0~1

PPC JPN:A5R 0~255

EUR:FOLIO

UC:COMP

PPC 0 0~1

ALL 4 0~10

PPC 0 0~1

PPC 1 0~1

PPC 0 0~1

PPC 0 0~2

PPC 7 0~7

Setting mode (08)

Accept-

able

Value

0:Continuous feed (original fed by press-

1: Single feed (original automatically fed

0: Left page to right page 2: Right page to left page 0: Not summer time 1: Summer time Press the icon on the LCD to select the size

0: Same sized original 1: Mixed sized original Time to take to add paper and resume paper feeding when paper in the bypass tray has run out during the bypass feed copying. 0: Paper is not dra wn in unless the START

1~10: Setting value x 0.5sec. 0: Disabled 1: Enabled (Printing is started after the

When a size is not selected for a bypass feed printing, 0: OFF (Outer guide not eliminated (im-

1: ON (Image printed with a standard width

Set if the rotation printing is performed when an original fed from the RADF needs to be printed in the same direction with the original placed on the original glass. 0: Not performed 1: Performed 0: Automatic 1: Portrait 2: Landscape

Contents

ing the START key)

by setting it on the tray)

key is pressed.

scanning is finished completely)

age printed in the largest size))

detected by the bypass guide.)

Value COPY FAX LAN/DSS

0X X X 1 XX 2X X 3 X 4X X 5 X 6X 7

---- Function enabled

X ----- Function disabled

Operation procedure

group

2 1

Width setting for image

636

shift copying (linkage of front side and back side)

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

ALL 0 0~1

0: Enabled 1: Disabled

1 - 28 December 2000 © TOSHIBA TEC

Page 36

Code Name Mode Default

Counter display for

637

printer UI

Time display

639

Date display format

640

Automatic sorting mode

641

(RADF) Sorter mode priority se-

642

lection Reproduction ratio in

645

editing mode

Image position of 2-in-1

646

or 4-in-1

Returning finisher tray

648

when printing is finished

Magazine sort setting

649

2 in 1/4 in 1 setting

650

Annotation printing for-

651

mat setting

Cascade operation set-

652

ting Cascade operation set-

653

ting Direction priority for an-

657

notation printing Auto-start setting for by-

658

pass feed printing

PPC 1 0~2

PPC 1 0~1 PPC JPN:0 0 ~2

UC:2

EUR:1

PPC 2 0~4

PPC 0 0~4

PPC 1 0 0~10

PPC 0 0~1

ALL 0 0~1

PPC 0 0~1

PPC 0 0~1 PPC 0 0~3

PPC 0 0~1

PRT 0 0~ 1

PPC 0 0~1

PRT 0 0~ 1

Setting mode (08)

Accept-

able

Value

0: Not displayed 1: Only total counter displayed 2: T otal counter , copy counter , f ax/list coun-

0: OFF 1: ON 0: 2000.11.28 1: 28.11.2000 2: 11.28.2000

0: Disabled 1: STAPLE 2: SORT 3: GROUP 4: ALTERNATION 0: NON SOR T 1: STAPLE 2: SORT 3: GROUP 4: ALTERNATION Set the reproduction ratio for “X in 1” printing (including magazine sort) to “Reproduction ratio x adjustment reproduction ratio” 0: 90% 1: 91% 2: 92% 3: 93% 4: 94% 5: 95% 6: 96% 7: 97% 8: 98% 9: 99% 10: 100% 0: Images placed at the upper left corner

1: Images placed in the center of each

Set whether the finisher tray is returned to the 1-bin when printing is finished or not 0: Not returned 1: Returned 0: Left page to right page 1: Right page to left page 0: Horizontal 1: Vertical

0: OFF OFF 1: ON OFF 2: OFF ON 3: ON ON Note: Hyphen printing format ON: -1- OFF: 1 0: OFF 1: ON

0: OFF 1: ON

0: Short edge 1: Long edge Set if the paper is automatically fed into the copier when it is placed in the bypass tray. 0: Auto-start OFF. Sheet is f ed by pressing

1: Auto-start ON

Contents

ter and printer counter displayed

of each page

page

Hyphen Dropout

(page number) (annotation/page number)

the [START] key.

Operation procedure

group

1 1

December 2000 © TOSHIBA TEC 1 - 29

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 37

Code Name Mode Default

659

Auto-start setting for bypass feed printing

672

Initialization of department management information

690

HDD formatting

691

HDD type display

693

HDD standby mode

839

Control by humidity sensor

840

Toner density temperature control

855

Fuser roller temperature during printing on OHP Developer bias DC ad-

860

justment

861

Developer bias DC adjustment

862

Developer bias DC adjustment

PPC 1 0~1

–– –

ALL – 2 ALL – 0~2

ALL 242 0~255

ALL 0 0~3

ALL 1 0~1

ALL 7 0~7

PRT 128 0~255

PPC 128 0~255

(Text/

Photo)

PPC 128 0~255

(Text)

Setting mode (08)

Accept-

able

Value

Set if the paper is automatically fed into the copier when it is placed in the bypass tray. 0: Auto-start OFF. Sheet is f ed by pressing

1: Auto-start ON Initializes the department managment information. * Enter the code with the digital keys and

2: Normal format 0: Not formatted 1: Not used 2: Normal format Timer for the HDD to enter the standby mode. * This value may need to be changed

0: Auto-toner control 1: Not used 2: Main charger grid, developer bias and

3:Auto-toner, main charger grid,

Set if the toner density is controlled by the thermistor. 0: Controlled 1: Not controlled (Default) 0: 165°C 1: 170°C 2: 175°C 3: 180°C 4: 185°C 5: 190°C 6: 195°C 7: 200°C Adjusts the developer transformer DC output adjustment value in 05-205 (in PRT mode) Adjusts the developer transformer DC output adjustment value in 05-205 (in PPC Text/Photo mode) Adjusts the developer transformer DC output adjustment value in 05-205 (in PPC text mode)

Contents

the [START] key.

press the [INITIALIZE] icon to perform the initialization. If the area storing the department management information is destroyed for some reason, “Enter Department code” is displayed on the control panel even if the department management function is not set on. In this case, initialize the area with this code. This area is normally initialized at the factory.

when the HDD is replaced since the HDDs of the different manufactureres have their own characteristics.

laser power control

developer bias and laser power control

Operation procedure

group

–

1 2

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 30 December 2000 © TOSHIBA TEC

Page 38

Code Name Mode Default

863

Developer bias DC adjustment

Main charger grid bias

864

adjustment

Main charger grid bias

865

adjustment

Main charger grid bias

866

adjustment

Main charger grid bias

867

adjustment

Laser power adjustment

872

Laser power adjustment

873

System firmware ROM

900

version

Printer ROM version

903

Scanner ROM version

905

RADF ROM version

907

Finisher ROM version

908

FROM main section soft-

920

ware version FROM internal program

921

version UI data fixed area ver-

922

sion UI data common area

923

version Version of UI data 1st

924

language in HDD Version of UI data 2nd

925

language in HDD Version of UI data 3rd

926

language in HDD Version of UI data 4th

927

language in HDD Version of UI data 5th

928

language in HDD Version of UI data in

930

FROM displayed at power ON

PPC 128 0~255

(Photo)

PRT 128 0~255

PPC 128 0~255

(Text/

Photo)

PPC 128 0~255

(Text)

PPC 128 0~255

(Photo)

PRT 128 0~255

PPC 128 0~255

ALL – –

ALL – – ALL – – ALL – – ALL – –

ALL

ALL – –

Setting mode (08)

Accept-

able

Value

Adjusts the developer transformer DC output adjustment value in 05-205 (in PPC Photo mode) Adjusts the main charger transformer output adjustment value in 05-210 (in PRT mode) Adjusts the main charger transformer output adjustment value in 05-210 (in PPC Text/Photo mode) Adjusts the main charger transformer output adjustment value in 05-210 (in PPC Text mode) Adjusts the main charger transformer output adjustment value in 05-210 (in PPC Photo mode) Adjusts the laser power adjustment value in 05-286 (in PRT mode) Adjusts the laser power adjustment value in 05-286 (in PPC mode) JPN: T320SJXXXX UC: T320SUXXXX EUR: T320SEXXXX Others: T320SXXXXX 320M-XXX 320S-XXX DF-XXX SDL-XXX FIN-XXX VX.X/X.X

VXXX.XXX

Contents

Operation procedure

group

2 2 2 2

December 2000 © TOSHIBA TEC 1 - 31

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

Page 39

<<Procedure to copy the total counter value (08-257)>>

1. Turn ON the power while [0] and [8] are pressed simultaneously .

2. Enter the code “257” with the digital ke ys and press the [START] key (the following is displa y ed). Note: Before performing the following operations, note the current counter values.

3. Enter the value “1” or “2” with the digital ke y and press the [START] k ey. The value entered is displayed on the left of the “%”, and the [SET] icon is displayed. Note: The value can be erased by pressing the [C/S] k ey to change as long as the [START] k ey is not

pressed. (The value on the left of the “%” is reset to “0” by pressing the [C/S] k ey. )

• Enter “1” to copy the value of the total counter

(LGC board) (A) onto the value of the backup counter (SLG board) (B).

• Enter “2” to copy the value of the backup coun-

ter (SLG board) (B) onto the value of the total counter (LGC board) (A).

4. Press the [SET] icon to complete overwriting of the counter value.

(A) (B)

Note: The screen returns to the code entry screen

without copying (overwriting) the value when the [CANCEL] icon is pressed.

DP4500/3500 ERROR CODES AND SELF-DIAGNOSIS

1 - 32 December 2000 © TOSHIBA TEC

Page 40

2. ADJUSTMENT

2.1 Formatting the Hard Disk

<Procedure> (1 ) Turn ON the power while the digital ke ys [0] and [8] are pressed simultaneously. (2 ) Confirm that “Test Mode” is display ed on the control panel. Enter the code “690” and press the [START]

key. The display changes to “System Mode”. (3) Enter “2” and then press the [SET] icon or [INTERRUPT] k e y. (4) “Wait” is displayed. (5 ) T urn OFF the power after the message “Wait” is gone.

December 2000 © TOSHIBA TEC 2 - 1 DP4500/3500 ADJUSTMENT

Page 41

2.2 Adjustment of Auto-Toner Sensor

Note: Check if the cleaning blade is pressed against the drum before performing this adjustment.

<Procedure> (Code “200” in the adjustment mode (05)) (1 ) Install the cleaner and developer unit in the copier (the cleaning blade is in contact with the drum). (2 ) T urn ON the power while the digital ke ys “0” and “5” are pressed simultaneously.

The following is displayed on the control panel.

100%

[0][5]

[POWER]

(3) Enter “200” using the digital keys and press the [START] key.

The display changes as follows.

[200] [START]

Note: A : indicates the controlled value of the auto-toner sensor output. Press the Up or Down

icon to change the value.

B : indicates the output voltage of the auto-toner sensor (2.30 V in the abov e case).

The drum, developer unit, etc. are in operation.

C : indicates the latest adjustment value.

(4) After about two minutes, the value B automatically starts changing.

TEST MODE

230% TEST MODE

128

200

128

230% TEST MODE WAIT

128

(5) After a short time, the value B becomes stable and the display changes as follows.

240% ADJUSTMENT MODE

128

(6) Check if the value B is within the range of 235 to 245 (the output voltage range of the auto-toner

sensor is 2.35 V to 2.45 V).

DP4500/3500 ADJUSTMENT 2 - 2 December 2000 © TOSHIBA TEC

200

128

150

Page 42

(7) If the value B is not within the range of 235 to 245%, press the Up or Down icon to adjust the value

manually.

Note: The relation between the icons and the values A and B is as follows.

Icon to be pressed Value A Value B

Up Increased Increased

Down Decreased Decreased

(8) Press the [SET] icon or [INTERRUPT] key.

The drum, developer unit, etc. are stopped and the following is displayed.

[SET]

[INTERRUPT]

100% TEST MODE READY

[0] [9]

100%

December 2000 © TOSHIBA TEC 2 - 3 DP4500/3500 ADJUSTMENT

Page 43

2.3 Dimensional Adjustment of Copied Image

2.3.1 Overview

The followings are the items in the copy image dimensional adjustment mode. The adjustment must be performed in the following order.

Items to adjust Code

(1) Paper alignment (450) (452) (448) (449)

(455) (457) (458)

a) Reproduction ratio of primary scanning direction

(Fine adjustment of polygonal motor rotation speed) (401)

b) Image position of primary scanning direction

(Laser writing start position) (411) (410)

c) Reproduction ratio of secondary scanning direction

(Fine adjustment of main motor rotation speed) (421)

d) Image position of secondary scanning direction

(Laser writing start position) (441) (440) (443) (444) (445) (442)

(2) Printer related adjustmet(3) Scanner related adjustment

e) Image position of primary scanning direction during

duplex copying (Laser writing start position) (498) a) Image distortion – b) Reproduction ratio of primary scanning direction

(Fine adjustment of polygonal motor rotation speed/PPC) (405) c) Image position of primary scanning direction

(Deviation correction of the scanner primary scanning

start position) (306) d) Reproduction ratio of secondary scanning direction (340) e) Image position of secondary scanning direction

(Deviation correction of the scanner secondary

scanning start position) (305) f) Top margin (430) g) Right margin (432) h) Bottom margin (433)

DP4500/3500 ADJUSTMENT 2 - 4 December 2000 © TOSHIBA TEC

Page 44

[Procedure to input the adjustment values]

In accordance with the following procedure, adjust each adjustment item so that the measured values obtained from the test copy satisfy the specification. Single-side test copying can be performed (in the normal copy modes) by pressing the [F AX] k ey immediately after entering the adjustment mode (05).

100%

[0] [5]

[POWER]

[Digital keys]: Enter a code.

[START]

[Digital keys]:Enter an adjust-

ment value.

[C/S] Corrects the value

[SET]

[INTERRUPT]

[FAX]: Test copy

V alue “ZZZ” is newly stored in BC-RAM instead of “YYY”.

TEST MODE

100%

TEST MODE

Current adjustment value

100%

TEST MODE

100%

WAIT WARMING UP

XXX

ZZZYYY

Varies depending on the code “xxx” entered with the digital keys.

Code No.

Adjustment value newly entered (YYY is default display).

If the copied image does not satisfy the specifications, return to y, and perform the adjustment again.

[0] [9]:To exit the adjustment

mode

December 2000 © TOSHIBA TEC 2 - 5 DP4500/3500 ADJUSTMENT

100%

COPYING

Page 45

2.3.2 Paper alignment

<Procedure> (The adjustment code for each cassette is as follows.)

Copier

Upper Lower

cassette cassette

(450) (452)

(1)

[POWER]

Current value

[0] [5]

displayed

Enter new

PFP

Upper Lower

cassette cassette

(448) (449)

In case of adjustment for papers in the copier

cassette, PFP, ADU and bypass tray

[STA RT](Code) (Sub-code) [START]

value

(Stores value in the RAM)

[SET]

[INTERRUPT]

(2 ) Check if image void is occurring. If there is any,

reduce the value as in “31” n “30” n “29”… until the void disappears. At this time, make sure there are no paper jams. Increasing the aligning amount may increase the scraping noise caused by the paper and the Mylar as the paper is transported by the registration roller . Decrease the value if the noise is annoying.

(3) P erf orm the same procedure for the ADU , LCF

and bypass feeding.

ADU

(455)

[Cassette selection] [FAX]

V oid

LCF

(457)

(Test print)

50~100mm

Bypass

feed

(458)

[0] [9]

(Exit)

Note: When paper thinner than that specified is used, paper jams may occur frequently at the registra-

tion section. In this case, it is advised to change (reduce) the aligning amount. However, if the aligning amount is reduced too much, this may cause the shift of the leading edge position. Select the appropriate value when the adjustment value is changed while confirming if the leading edge is not shifted.

* As a tentative countermeasure, the service life of the feed roller can be extended by increasing the

aligning amount.

DP4500/3500 ADJUSTMENT 2 - 6 December 2000 © TOSHIBA TEC

Page 46

2.3.3 Printer related adjustment

(a) Reproduction ratio adjustment of the primary scanning direction (fine adjustment of polygonal motor

rotation speed/PRT)

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n(Adjustment mode)

2. Press [1] and [FAX]. (A grid pattern of 10 mm squares is printed out: Use A3 (LD) in the lower cassette .)

3. Measure the distance A from the first grid line to the 21st of the grid pattern.

4. Check if the distance A is within 200 ± 0.5 mm or not.

5. If not, change the value taking the following procedure, and measure the distance A again. <Procedure> (Adjustment mode)n(Enter the code [401] with the digital k eys)n[START]

n(Enter a value (acceptable values: 0 to 255) with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM n“100% A” is displa yed.nPress [1]n[FAX]n(A grid pattern is printed out)

*The larger the adjustment value, the longer the distance A becomes (approx. 0.5 mm/4 steps).

(b) Image position adjustment of the primary scaning direction (the adjustment of the laser writing start

position)

1. Turn ON the power while the digital ke ys [0] and [5] are pressed simultaneously . n(Adjustment mode)

2. Press [1]n[F AX] (A grid pattern is printed out: Use A3 (LD) in the lo wer cassette.)

3. Measure the distance B from the leading edge of the paper to the 6th line of the grid pattern.

4. Check if the distance B is in the range of 52 ± 0.5 mm.

5. If not, change the value taking the following procedure and measure the distance B again. <Procedure> (Adjustment mode)n(Enter the code [411] with the digital k eys)nPress [START]

n(Enter a value (acceptable values: 0 to 255) with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n“100% A” is displayed. nPress [1]n[FAX]n(A grid pattern is printed out.)

*The larger the adjustment value, the longer the distance B becomes

(approx. 0.5 mm/10 steps).

6. After the adjustment for the code 411 is completed, apply the same adjustment value for the code 410. <Procedure> (Adjustment mode)n(Enter the code [410] with the digital k eys)nPress [START]

n(Enter the same value entered in the step 5 above with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM.

Note: The first line of the grid pattern is occasionally not printed out.

December 2000 © TOSHIBA TEC 2 - 7 DP4500/3500 ADJUSTMENT

Page 47

rotation speed)

1. Turn ON the power while the digital ke ys [0] and [5] are pressed simultaneously . n(Adjustment mode)

2. Press [1] and then [F AX]. (A grid pattern is printed out. Use A3 (LD) in the low er cassette.)

3. Measure the distance C from the 1st line at the trailing edge of the paper to the 21st line of the grid pattern.

4. Check if the distance C is within the range of 200 ± 0.5 mm.

5. If not, change the value taking the following procedure and measure the distance C again.

<Procedure> (Adjustment mode)n(Enter the code [421] with the digital k eys)n[START]

n(Enter a value (acceptable values: 0 to 255) with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n“100% A” is displa yed.nPress [1]n[FAX]n(A grid pattern is printed out)

*The larger the adjustment value, the longer the distance C becomes (0.5 mm/4 steps).

(d) Image position adjustment of the secondary scanning direction (the adjustment of the laser writing

start position) This adjustment has to be performed for each paper source. The following table shows the order of the paper source to be adjusted, code, paper size and acceptable values.

Order for

adjustment size value

1 Lower cassette 441 A3 0 to 40 2 Upper cassette 440 A4 0 to 15 3 LCF 443 A4 0 to 15 4 PFP 444 A3 0 to 15 5 ADU 4 4 5 A 3 0 to 15 Paper fed from the lower cassette 6 Bypass feed 44 2 A 4 0 to 15

Paper source Code

Paper Acceptable

Remarks

1. Turn ON the power while the digital ke ys [0] and [5] are pressed simultaneously . n(Adjustment mode)

2. Press [1] ([3] for ADU)n[FAX]. (A grid pattern is printed out.)

3. Measure the distance D from the leading edge of the paper to the 5th line of the grid pattern.

4. Check if the distance D is within the range of 52 ± 0.5 mm.

5. If not, change the value taking the following procedure and measure the distance D again.

<Procedure> (Adjustment mode)n(Enter the code [see tab le abov e] with the digital ke ys)n[START]

n(Enter a value (the acceptable values: see the table above) with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n“100% A” is displa yednPress [1] ([3] for ADU)n[FAX]n(A grid pattern is printed out)

*The larger the adjustment value, the shorter the distance D becomes (0.4 mm/steps).

DP4500/3500 ADJUSTMENT 2 - 8 December 2000 © TOSHIBA TEC

Page 48

(e ) Image position adjustment of the primary scanning direction during duplex printing (the adjustment of

the laser writing start position)

(e-1) Adjustment for long-sized paper

1. Turn ON the power while the digital ke ys [0] and [5] are pressed simultaneously . n(Adjustment mode)

2. Press [3]n[FAX] (A grid pattern is printed out on both sides of the paper: Use A3 (LD) in the lower cassette.)

3. Check the grid pattern on the back side of the paper. Measure the distance E from the leading edge of the paper to the 6th line of the grid pattern.

4. Check if the distance E is in the range of 52 ± 0.5 mm.

5. If not, change the value taking the following procedure and measure the distance E again.

<Procedure> (Adjustment mode)n(Enter the code [498] with the digital k eys)nPress [0]n[START]

n(Enter a value (acceptable values: 0 to 255) with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n“100% A” is displayed. nPress [3]n[FAX]n(Grid patterns are printed out on both sides of the paper)

*The larger the adjustment value, the longer the distance E becomes

(approx. 0.5 mm/10 steps).

(e-2) Adjustment for short-sized paper After the adjustment for long-sized paper is completed, apply the same adjustment v alue f or short-sized paper.

<Procedure> (Adjustment mode)n(Enter the code [498] with the digital k eys)nPress [1]n[START]

n(Enter the same value entered for long-sized paper with the digital keys) nPress the [SET] icon or the [INTERRUPT] key to store the value in the RAM.

Note: The first line of the grid pattern is occasionally not printed out.

December 2000 © TOSHIBA TEC 2 - 9 DP4500/3500 ADJUSTMENT

Page 49

Feeding direction

B, E

121

[Grid pattern]

<Order of distances to be adjusted> [0] [5] [POWER] n [1] ([3] for duplex copying) n [FAX] A: 05-401 (lower cassette, A3/LD) n 200±0.5 mm (+0.5 mm/4 steps) B: 05-411 (lower cassette, A3/LD) n 52±0.5 mm (+0.5 mm/10 steps) n enter the same value for 05-410. C: 05-421 (lower cassette, A3/LD) n 200±0.5 mm (+0.5 mm/4 steps) D: 05-441 (lower cassette, A3/LD), 440 (upper cassette, A4/LT), 443 (LCF, A4/L T), 444 (PFP, A3/LD), 445

(ADU, A3/LD), 442 (bypass feed, A4/LT) n 52±0.5 mm (–0.4 mm/steps)

E: 05-498-0, 498-1 n 52±0.5 mm (+0.5 mm/10 steps)

DP4500/3500 ADJUSTMENT 2 - 10 December 2000 © TOSHIBA TEC

Page 50

2.3.4 Scanner related adjustment

(a) Image distortion adjustment

Feeding direction

Step 1

Step 2

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously.

2. Press [F AX] to make a copy of any image on a sheet of A3 (LD) paper.

Feeding direction

Adjustment screw for the mirror-1

3. Enter [308] and press the [START] key to mov e the carriage to the position for adjustment (exit side).

4. Make an adjustment in the order of step 1 and

[Step 1] In the case of A: Tighten the adjustment screw

for mirror-2 (CW).

In the case of B: Loosen the adjustment screw

for mirror-2 (CCW).

[Step 2] In the case of C: Tighten the adjustment screw

for mirror-1 (CW).

In the case of D: Loosen the adjustment screw

for mirror-1 (CCW).

Adjustment screw for the mirror-2

December 2000 © TOSHIBA TEC 2 - 11 DP4500/3500 ADJUSTMENT

Page 51

(b) Reproduction ratio adjustment of the primary scanning direction (fine adjustment of the polygonal

motor rotation speed/PPC)

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Place a ruler on the original glass (along the direction from the rear to the front of the machine).

3. Press the [F AX] key and make a copy in the condition of A3 (LD), 100% and lower cassette.

4. Measure the distance A from 10 mm to 270 mm of the copied image of the ruler.

5. Check if the distance A is within the range of 260±0.5 mm.

6. If not, change the value taking the following procedure, and repeat the steps 3 to 5 until the distance falls within range.

<Procedure> (Adjustment mode) n (Enter the code [405] with the digital k eys) n [START]

n (Enter a value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment v alue , the higher the reproduction ratio and the longer the

distance A become (approx. 0.5 mm/4 steps).

Copied image of the ruler

50 100 150 200 250

Feeding direction

DP4500/3500 ADJUSTMENT 2 - 12 December 2000 © TOSHIBA TEC

Page 52

primary scanning start position)

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Place a ruler on the original glass with its leading edge pushed against the rear side and its side along the original scale on the left.

3. Press the [F AX] key and make a copy in the condition of A3 (LD), 100% and lower cassette.

4. Measure the distance B from the left edge of the paper to 10 mm of the copied image of the ruler.

5. Check if the distance B is within the range of 10±0.5 mm .

6. If not, change the value taking the following procedure, and repeat the steps 3 to 5 until the distance falls within range.

<Procedure> (Adjustment mode) n (Enter the code [306] with the digital k eys) n [START]

n (Enter a value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment value, the more the image is shifted to the left and the

distance B becomes narrower (0.0423 mm/step).

Copied image of the ruler

50 100 150 200

Feeding direction

December 2000 © TOSHIBA TEC 2 - 13 DP4500/3500 ADJUSTMENT

Page 53

(d ) Reproduction ratio adjustment of the secondary scanning direction

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Place a ruler on the original glass with its leading edge pushed against the original scale on the left.

3. Press the [F AX] key and make a copy in the condition of A3 (LD), 100% and lower cassette.

4. Measure the distance C from 210 mm to 410 mm (in case of A3) or from 220 mm to 420 mm (in case of LD) of the copied image of the ruler.

5. Check if the distance C is within the range of 200±0.5 mm.

6. If not, change the value taking the following procedure, and repeat steps 3 to 5 until the distance falls within range.

<Procedure> (Adjustment mode) n (Enter the code [340] with the digital k eys) n [START]

n (Enter a value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] k e y to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment value, the lower the reproduction ratio becomes. (0.05

mm/step)

Copied image of the ruler

200 250 300 350 400

Feeding direction

C (LD)

C (A3)

DP4500/3500 ADJUSTMENT 2 - 14 December 2000 © TOSHIBA TEC

Page 54

(e ) Image position adjustment of the secondary scanning direction (Deviation adjustment of the scanner

secondary scanning start position)

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Place a ruler on the original glass with its leading edge pushed against the original scale on the left.

3. Enter “305” with the digital keys and press the [START] key n [SET] icon or [INTERRUPT] key n [FAX] key to make a copy in the condition of A3(LD), 400% and lower cassette .

4. Measure the distance D from the leading edge of the paper to 10 mm of the copied image of the ruler.

5. Check if the distance D is within the range of 34±0.5 mm.

6. If not, change the value taking the following procedure, and repeat the steps 3 to 5 until the distance falls within range.

<Procedure> (Adjustment mode) n (Enter the code [305] with the digital k eys) n [START]

n (Enter a value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment value, the more the image is shifted to the leading edge (0.68

mm/step).

Copied image of the ruler

10 20 30 40

Feeding direction

December 2000 © TOSHIBA TEC 2 - 15 DP4500/3500 ADJUSTMENT

Page 55

(f) T op margin

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Open the platen cover or ADF.

3. Press the [F AX] key and make a copy in the condition of A3 (LD), 100% and lower cassette.

4. Measure the blank area E at the leading edge of the copied image.

5. Check if the blank area E is within the range of 3±0.5 mm.

6. If not, change the value taking the following procedure, and repeat the steps 3 to 5 until the distance falls within range.

<Procedure> (Adjustment mode) n (Enter the code [430] with the digital k eys) n [START]

n (Enter a value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment value, the wider the blank area becomes (0.0423 mm/step).

Feeding direction

(g ) Right margin

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Open the platen cover or ADF.

3. Press the [F AX] key and make a copy in the condition of A3 (LD), 100% and lower cassette.

4. Measure the blank area F at the right side of the copied image.

5. Check if the blank area F is within the range of 2±0.5 mm.

6. If not, change the value taking the following procedure, and repeat the steps 3 to 5 until the area falls within range.

<Procedure> (Adjustment mode) n (Enter the code [432] with the digital k eys) n [START]

n (Enter a value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment value, the wider the blank area at the right side becomes

(0.0423 mm/step).

Feeding direction

DP4500/3500 ADJUSTMENT 2 - 16 December 2000 © TOSHIBA TEC

Page 56

(h ) Bottom margin

1. T urn ON the power while the digital k eys [0] and [5] are pressed simultaneously. n (Adjustment mode)

2. Open the platen cover or ADF.

3. Press the [F AX] key and make a copy in the condition of A3 (LD), 100% and lower cassette.

4. Measure the blank area G at the trailing edge of the copied image.

5. Check if the blank area G is within the range of 2±0.5 mm.

6. If not, change the value taking the following procedure, and repeat the steps 2 to 4 until the area falls within range.

<Procedure> (Adjustment mode) n (Enter the code [433] with the digital k eys) n [START]

n (Enter value (acceptable values : 0 to 255) with the digital keys) n Press the [SET] icon or the [INTERRUPT] key to store the value in the RAM. n (“100% A” is displayed.)

* The larger the adjustment value, the wider the blank area at the trailing edge be-

comes (0.0423 mm/step).

Feeding direction

December 2000 © TOSHIBA TEC 2 - 17 DP4500/3500 ADJUSTMENT

Page 57

2.4 Image Quality Adjustment

2.4.1 Image density

Perform the image density adjustment in the adjustment mode “05” if the user requests to change the image density.

Copy mode

T ext/Photo

50 3 501 5 04 Manual density center value The larger the value, the darker the image becomes

Code

Adjust the image density to satisfy the user’s request b y taking the follo wing procedure while studying the image obtained from the test copy and the currently entered values.

505 506 507 508 509 510 51 4 5 12 51 5 Automatic density

[Digital keys]: Enter the code.

Photo Text

[0] [5]

[POWER]

[START]

Items to adjust Remarks

Manual density light step value Manual density dark step value

100%

TEST MODE

100%

TEST MODE

The larger the value, the lighter the image of the lighter steps become The larger the value, the darker the image of the darker steps become The larger the value, the darker the image becomes

Varies depending on the code “xxx” entered with the digital keys.

Code No.

XXX

[Digital keys]:Enter the adjust-

ment value.

[C/S] Corrects the values

[SET]

V alue “ZZZ” is ne wly stored in BC-RAM instead of “YYY”.

[INTERRUPT]

[F AX]: Test copy

Return to y to make the adjustment again

[0] [9]: To exit the adjustment

mode

ZZZYYY

Current adjustment value

100%

TEST MODE

100%

WAIT W ARMING UP

100%

COPYING

Notes) 1. Only one single-sided copy can be made.

2. Since the duplex copying is disabled, make a test copy after exiting the adjustment mode.

Newly entered adjustment value (YYY is the default display).

DP4500/3500 ADJUSTMENT 2 - 18 December 2000 © TOSHIBA TEC

Page 58

2.4.2 Sharpness (HPF) adjustment

If user requests to make the image sharpness softer or harder, adjust the sharpness setting (HPF intensity) in the adjustment mode “05”.

Code

Copy mode

T e xt/Photo

62 0 62 1 622 Sharpness setting

Photo T ext

Items to adjust Remarks

Enter one of the following values in the copy mode.

(HPF intensity)

Units: 1: Text/Photo 2: Photo 5: Text Tens: 0: Use default value

1~9: Change intensity

(The larger the value, the sharper the image becomes.)

• Example of value entry in case the copy mode is “Text/Photo”.

2 1

Fixed value for Text/Photo mode Enter a value 0 to 9

The entry procedure of the adjustment value is the same as that for “2.4.1 Image density”.

2.4.3 Gamma slope adjustment

If the user requests to change the gamma slope, perform the gamma slope adjustment in the adjustment mode “05”.

Code

Copy mode

T ext/Photo

593 5 94 5 95 Gamma slope adjustment 0: Use default value (equivalent to the

Photo T ext

Items to adjust Remarks

set value 5)

1 to 9: Gamma data (The larger the value,

the darker the image becomes)

The entry procedure of the adjustment value is the same as that for “2.4.1 Image density”.

December 2000 © TOSHIBA TEC 2 - 19 DP4500/3500 ADJUSTMENT

Page 59

2.4.4 Setting for the range correction

The range correction on the values of the background peak/text peak can be set in the adjustment mode (05). If they are fixed, the range correction is performed with standard values. The values of the background peak and text peak affect the reproduction of the background density and text density respectively.

Code

Copy mode

Text/Photo

570 5 71 57 2 Range correction

693 6 94 69 5 Range correction

Photo Text

Items to set Remarks

for original manually set on the original glass

for original set on the RADF

The following are the default values set for each copy mode.

Text/Photo: 12, Photo: 12, Text: 44

Units: Setting for the automatic density mode Tens: Setting for the manual density mode

1: Value of the background peak - fixed

Value of the text peak - fixed

2: Value of the background peak

- varies depending on image data to be copied. Value of the text peak - fixed

3: Value of the background peak - fixed

Value of the text peak

- varies depending on image data to be copied.

4: Value of the background peak

- varies depending on image data to be copied. Value of the text peak

- varies depending on image data to be copied.

The entry procedure of the adjustment value is the same as that for “2.4.1 Image density”.

DP4500/3500 ADJUSTMENT 2 - 20 December 2000 © TOSHIBA TEC

Page 60

2.5 High-Voltag e Adjustment

(1) Preparation

Developer Bias Main Charger Transfer Charger Separation Charger

Developer unit

Cleaner unit

Developer unit connector of the copier

(+) terminal

(–) terminal

Digital Tester

Function switch Full-scale Remarks

How to turn on the power

Remarks

Disconnect the connector. Remove the drum and install the cleaner unit in the copier.

Not connected Connect in the hole at the

front side of the developer unit.

Connect to the machine frame (to ground).

Use a digital tester with an input resistance of 10 M (RMS value) or higher. Attach the door switch jig and press the front cover opening/closing switch while the front cover is open.

Refer to (b) Connection Refer to (c) Connection Refer to (d) Connection for for developer bias for main charger transfer/separation charger adjustment. adjustment. adjustment.

Remove from the copier. (Not used) Install the unit together with the current measuring jig in the copier. NOTE 1:Connect the green cable of the current measuring jig to ground on the

copier frame. Refer to (a) Installation of current measuring jig. Connect the jig detection conector with the developer unit connector of the copier.

Connect to the main charger case (between the case and the terminal).

Connect with the white cable of the current measuring jig (to ground).

1,000 V

Connect with the red cable of the current measuring jig.

(a ) Installation of the current measuring jig Notes: 1.Clean the toner recovery auger when the

toner is sticking to it. Then attach the jig.

2.Do not damage the tip of the separation fingers.

3.Remove the cleaner stay before installing the jig.

1. Unlock the cleaning blade using the blade releasing jig. ( Chapter 11.5 [C] in the Service Manual)

2. Insert the shaft through the hole at the front side of the cleaner.

3. Put the shaft through the current measuring jig and put it into the rear hole to fix it to the cleaner. Attach the cleaner stay.

4. Install the cleaner unit in the copier with 2 screws, and connect the jig detection connector with the connector of the dev eloper unit in the copier . Fix the green cable of the current measuring jig to the machine frame.

Notes: 1. Set the current measuring jig in the center of the cleaner unit.

2. High-voltage adjustment cannot be performed without connecting the jig detection connector (except the developer bias adjustment).

Page 61

(b ) Connection for developer bias adjustment

Front cover opening/closing switch

(–) terminal Connected to the machine frame

Front cover opening/closing switch

(+) terminal

Connect the jig detection connector with the developer unit connector

(+) terminal

(d ) Connection for transfer/separation charger adjustment

Front cover opening/closing switch

Connect the jig detection connector with the developer unit connector

Grounded to the machine frame (green cable)

(–) terminal (Connect the white cable of the jig)

Grounded to the machine frame (green cable)

(–) terminal (Connect the white cable of the jig)

(+) terminal (Connect the red cable of the jig)

Page 62

(2) Operation

NOTES

1. After the drum is replaced with a new one, reset the drum life counter to “0” (08-401).

2. After the developer material is replaced with a new one, reset the developer material life counter to “0” (08-404).

3. After the separation charger wire is replaced with a new one, reset the separation charger life counter to “0” (08-497).

4. A current measuring jig is necessary to adjust the high-voltage output (except the developer bias adjustment).

5. If the connectors of the current measuring jig and the developer unit of the copier are not connected with each other, high-voltage adjustment codes except those for the developer bias are not accepted. Do not connect anything with the connector of the developer unit of the copier during the measurement of the developer bias.

6. After the high-voltage transformer is replaced with a new one, the output of the main charger, developer bias charger , transf er charger and separation charger need to be checked and adjusted.

Connect the digital testers as described in (1) Preparation, and follow the procedure on the next page to adjust the output from the main charger, de veloper bias charger , transf er charger and separation charger .

Page 63

[0][5]

[POWER]

[Digital keys]: Enter the code.

[ST AR T]

[UP] or [DOWN]

[SET] icon

[INTERRUPT]

: Adjust the value “YYY” to satisfy the following table.

Code 210 205 221 Adjustment value –790 ±5V –521 ±5V 413 ±45mV

Code 231 Adjustment RMS value 1267 ±115mV Value Mean value 1235 ±112mV

: Adjusted value “YYY” is stored in the BC-RAM.

100%

TEST MODE

100%

TEST MODE

YYY

Current set value

Main Developer

charger

Separation

Center value

100%

TEST MODE

XXX

bias charger

Transfer charger

Center value

Code No.

Return to y to enter the other adjustment mode.

[0][9] : To exit the adjustment mode.

Note: The “adjustment value” indicates the output voltage of the D/A converter (IC47 and IC48) on the logic PC

board. The relation between the output voltage and adjustment value is as follows:

Output voltage = (Adjustment value + 1)

256 ✕ 5 V

Page 64

(3 ) Precautions

(a) Developer bias

Note for adjustment

Adjust the developer bias if fogging occurs over the entire image even though the main charger grid voltage and toner density are appropriate. However, the following may occur if the developer bias is lowered too much:

• Image contrast becomes low.

• Image is patchy or blurred.

• The carrier in the developer material adheres to the photoconductive drum, causing scratches around the cleaner.

(b) Transfer

Items to check before adjustment Blotched image or poor transfer can be also caused by matters other than defective adjustment of transfer output. Check the f ollowing items bef ore adjusting the transf er charger. If there is no prob lem, adjust the output of the transfer charger .

• Is the charger wire incorrectly installed or dirty? Is the transfer guide deformed?

• Is the developer unit properly installed? Is the developer magnetic brush in contact with the drum?

Is the developer sleeve rotating during copying? Is the toner density low?

• Is the copy paper fed straight? Is the copy paper abnormally moist?

• Is the rotation of the registration roller normal?

• Is the output of the transfer guide bias normal?

• Is the separation output different from the set value?

• Is the developer bias value an appropriate one?

• Are the transfer/separation charger case and the drum shaft grounded? Is the transfer/separation

transformer grounded?

• Is the transfer insulation film (transparent film) damaged or deformed?

Note for adjustment When blotched image appear:

• If blotched image appear in halftone areas, lower the transfer output value. Remember that transfer

performance becomes low if the transfer output value is lowered too much. When transfer is poor: Increase the transfer output value under the following conditions. Remember that blotched image appear if the transfer output value is increased too much.

• Transfer is poor even though the charger wire is not dirty.

• Thick paper has been frequently used.

Page 65

Items to check before adjustment Poor paper separation from the drum can be also caused by matters other than defectiv e adjustment of the separation output. Check the following items before making an adjustment. If there is no problem, adjust the output of the separation charger .

• Is the charger wire incorrectly installed or dirty?

• Is the developer unit installed properly? Is the developer magnetic brush in contact with the drum?

Is the developer sleeve rotating during copying? Is the toner density low?

• Is the copy paper fed straight? Is the copy paper abnormally moist?

• Is the rotation of the registration roller normal?

• Is the output of the main charger normal?

• Is the transfer output different from the set value?

• Is the transfer/separ ation charger case grounded? Is the transfer/separ ation transformer grounded?

• Is the sub-separation fan rotating?

• Is the separation finger in contact with the drum surface?

Note for adjustment When poor paper separation occurs: Increase the separation output value under the following conditions. Remember that if the separation output value is increased too much, blotched image occurs and separation perf ormance becomes low .

• P oor separation occurs e ven though the charger wire is not dirty.

• Thin paper has been frequently used. When poor transfer occurs:

• Decrease the separation output value when poor transfer occurs. Remember that the separation per-

formance becomes low if the separation output value is decreased too much.

Page 66

2.6 Adjustment of Developer Unit

2.6.1 Adjustment of the doctor-sleeve gap

Tool to be used: Doctor-sleev e jig (1 ) Take out the de v eloper unit from the copier .

Remove the top cover and dispose the developer material ( Chapter 12.5 in the Service Manual).

(2) Remove 2 screws to take off the developer

sleeve cover. Place the developer unit on a flat surface.

(3) Loosen 4 screws fixing the doctor blade.

(4) Lift up the toner scattering prevention sheet

(urethane sheet), and insert the jig of the gauge “0.45” into the gap between the developer sleeve and doctor blade (front and rear).

(5) Tighten the screws while the doctor blade is

pressed against the doctor-sleev e jig lightly.

(6) Inser t the jig of the gauge “0.40” into the gap

between the developer sleeve and doctor blade. Confirm that the jig moves smoothly to the front and rear sides, and the jig of the gauge “0.50” cannot be inserted into the gap.

Note: Before adjusting or checking the gap, make

sure the mark on the developer sleeve is facing the blade.

Page 67

(7 ) Confirm that the both ends (rear and front) of the toner scattering prevention sheet get in between the

developer slee ve and doctor b lade support holder.

Note: Make sure that the side seals are attached on the toner scattering prevention sheet.

[Front] [Rear]

Side seal

Toner scattering prevention sheet

(8 ) Put the pin at the back of the developer sleeve

cover into the positioning hole of the doctor blade support holder. Tighten the screws (one each for the front and the rear) to fix the developer sleeve cover.

Note: 1. Tighten the screw of the front side first.

2. Attach the developer sleeve cover properly , otherwise the cover may be def ormed.

3. Make sure that the toner scattering prevention sheet is not caught between the doctor blade and the developer sleeve.

Side seal

Toner scatter ing prevention sheet

Positioning hole

(9) Attach the top cover. Securely hook it on the

Screw

latches and fit the protrusion of the developer unit into the cut-out part of the cover.

Toner scatter ing prevention sheet

Page 68

2.6.2 Adjustment of the developer polarity position

(1) Remove the developer unit from the copier

( Chapter 12.5 in the Service Manual).

(2) Loosen the fixing screw of the polarity adjust-

ment lever. Move the lever and adjust the polarity position using the scale on the frame.

Notes: 1. Do not loosen or remove the fixing screw

of the lever unnecessarily since it is adjusted with a special jig at the factory.

2. When the screw needs to be loosened for disassembly, mark the position of the polarity adjustment lever and reassemble it where it was. Howev er , when the new dev eloper sleeve is installed, the height “H” in the figure below has priority over the position of the lever in assembling the developer unit.

Scale

Polarity adjustment lever

Fixing screw of the polarity adjustment lever

H = 15.1mm

Page 69

2.7 Adjustment of Scanning Section

2.7.1 Adjustment of the carriages

(1) Installing the carriage wire

Install a new carriage wire as in the following figure when it is replaced.

[Front side]

Idler pulley

Carriage-2

Carriage wire (black)

Bracket for Carriage-1

Hook

Spring

Wire winding pulley

Idler pulley

[Rear side]

Idler pulley

Carriage-2

Carriage wire (silver)

Bracket for Carriage-1

Hook

Spring

Wire winding pulley

Idler pulley

(2 ) Adjustment of the carriage wires

Adjustment is not necessary since a cer tain tension is applied to the carriage wires by the tension springs. Note: Make sure that the tension applied to the wire is normal.

Page 70

(3) Adjustment of the positions of the carriages-1

and -2 a. Move the carriage-2 to the exit side. Loosen

one screw fixing the front side idler pulley bracket. Tighten the screw again while the positions A and B are pushed against inside the frame of exit side.

b . Fix 2 brackets (one each at the rear and the

front) attached to the wire temporarily to the base of the carriage-1. Push the positions C and D of the carriage-1 against inside the frame of the exit side while the carriage-2 is also pushed against inside the frame of the exit side, and then fix the carriage-1 to the wire. * The adjustment screw of the carriage-2 can-

not be reached when the carriage-1 has been fixed temporarily to the wire bracket.

Frame of exit side

Carriage-1

Position C (D)

Position A (B)

Carriage-2

Exit side Feeding side

Carriage-1

Position C (D) Position A (B)

Rear side Front side

Carriage-2

Frame of exit side

Page 71

(4 ) Winding the wire around the pulleys

Wind the wire around the wire pulley: a. Put the ø3 ball terminal located at the center of

the wire into a hole on the wire pulley . One end of the wire with a hook attached comes to the outside.

b. Wind the wires around the wire pulleys of the

front and rear sides. The number of turns to be wound are as follows:

· 2 turns to the opposite side of the boss.

· 4 turns to the boss side. After winding the wires around the pulleys, attach the wire holder jigs not to loosen the wires.

[Rear side] [Front side]

Hook

Ball terminal

Wire pulley

Ball terminal

2 turns

Hook

4 turns

Pulley (rear)

Wire

Pulley (front)

4 turns

Hook

Ball terminal

2 turns

(Front)

Wire pulley

Ball terminal

(Rear)

Wire pulley

Wire holder jig

Page 72

Notes: 1. P a y attention to the follo wing when the wires are wound around the pulleys:

· Do not twist the wire.

· Wind the wires tightly so that they are in complete contact with the surface of the pulleys.

· Each turn should be pushed against the previously wound turn so that there is no space be-

tween them.

2. When the wire holder jig is attached, make sure that the wire is not shifted or loosened.

3. The wire should come out of the slot of the wire holder jig.

4. Attach the wire holder jig with its one side with the wider space between the slots facing the exit side.

[Front side] [Rear side]

No space between turns

Ball terminal (ø3)

Wire holder jig

Pulley

Exit side

Feeding side

Page 73

2.7.2 Lens unit

(1) Replacment of the lens unit

· Since the lens unit is precisely adjusted at the factory, it must not be readjusted in the field and some of the components cannot be replaced. If any of the components is defective, replace the whole unit.

· When the unit is replaced with a new one, do not loosen or remove the 8 screws indicated with the arrows.

Rear side

Front side

· Handle the unit with care. Do not hold the lens and adjusted part (hold the unit as shown below).

Rear side

Do not hold the lens and adjusted part.

Front side

Page 74

(2 ) Adjustment of the magnification ratio of the lens

Feeding direction

Notes: 1. P erf orm magnification ratio adjustment of

the lens only when the lens unit has been removed or is to be replaced.

2. Before making this adjustment, check that the primary scanning reproduction ratio of the printer is correct.

Copied ruler Actual ruler

a. Place a ruler on the original glass and make a copy on a A4(LT)-sized paper at a 100% reproduction

ratio . b . Compare the copied ruler with the actual ruler to see the difference in size. c. Mak e adjustment following the procedure below , so as to mak e the distance between each mark on the

rulers match.

Note: After this adjustment is finished, be sure to perform the “deviation adjustment of the scanner primary

scanning start position”.

1. Remove the original glass and lens cover.

2. Loosen the 2 screws fixing the lens unit.

Rear side

Marks

Front side

Page 75

3. Slide the lens unit forward or backward using the marks on the lens base as a guide.

The following table shows the relation between the difference in the reproduction ratio between the

copied ruler and the actual ruler and the movement amount of the lens unit.

Reproduction-ratio error Movment amount of unit

0.1 % 0.5 mm

0.2 % 0.9 mm

0.3 % 1.4 mm

Reproduction ratio error is small

Direction of movement

Reproduction ratio error is large

0.4 % 1.8 mm

0.5 % 2.3 mm

0.6 % 2.7 mm

Exit side

Lens unit

0.7 % 3.2 mm

0.8 % 3.6 mm

0.9 % 4.1 mm

1.0 % 4.5 mm

Note: Finer adjustment can be made in the “Fine adjustment of polygonal motor rotation speed”.

4. Attach the lens cover and original glass. Make a copy to confirm the reproduction ratio.

5. Remove the original glass and lens cover again, and tighten 2 screws to fix the lens unit.

6. Reattach the lens cover and original glass.

Feeding side

Page 76

2.8 Adjustment of Angle of the Printed Image

(1 ) Print out a grid pattern in the test print mode (04-142). Measure the deviation A (see the figure below)

against the distance of 240mm in the feeding direction on the grid pattern. (2 ) Remove the rear side upper cover . (3 ) Look at the scale on the frame and write down the position of the stay before making an adjustment. (4 ) Loosen the adjustment screw and slide the stay as much as the deviation A on the printed grid pattern

in the direction as described below to adjust the deviation of the laser optical unit.

ex.) If the grid line is slanted by 1mm to the rear side, slide the stay 1mm downward.

Feeding

direction

Feeding

direction

240

(a) The grid line is slanted to the rear

side against the feeding direction. n Slide the stay downward.

Scale (space between

Stay

each mark: 1mm)

240

(b) The grid line is slanted to the front

side against the feeding direction. n Slide the stay upward.

Adjustment screw

Stay

Note: Print out an image and check if it is positioned properly. Adjust the printer section following “2.3

Dimentional Adjustment of Copied Image” if necessary .

Page 77

2.9 Adjustment of Sideways Deviation of Sheet Caused by Paper Feeding

• The center of the copied image shifts to the front

side. n Move the guide to the front side (the direction A in the figures below).

Feeding

direction

Center

Rear

• Bypass feeding

• The center of the copied image shifts to the rear side. n Move the guide to the rear side (the direction B in the figures below).

Feeding direction

Center

Rear

• Cassette feeding

Page 78

2.10 Key Copy Counter (MU-8, MU-10)

The following 2 parts are needed to install the key cop y counter.

Counter socket

MU-10

Key copy counter

MU-8

<Installation procedure> (1) Remove the rear side upper cover. (2) Remove the feeding side upper cover, and cut

out the cover for the key copy counter.

(3 ) Pull out the harness connector from the hole on

the frame, and cut the shorted harness of the connector. (Treat the cut harness properly to avoid its being shorted on the machine frame). Disconnect the dummy connector .

Screw hole to attach the socket

Harness connector

Dummy connector

Page 79

(4) Connect the connector of the counter socket with

the harness connector of the copier.

(5) Install the counter socket to the copier frame

with two M3 screws.

(6) Attach the feed side upper cover and the rear

side upper cover .

(7 ) Insert the key copy counter with its arrow mark

facing up.

Socket connector

Connector of the copier

M3 screws

Arrow mark

(8) Enter the value “3” for the code 202 in the set-

ting mode (08).

Page 80

3. PREVENTIVE MAINTENANCE (PM)

3.1 Maintenance Performed Every 150,000 (DP4500) and 116,000 Copies (DP3500)

(1) Preparation

a. Ask the user about the current machine conditions and note them down. b . Before starting maintenance, make some sample copies and save them. c. T urn OFF the power and be sure to unplug the copier .

(2 ) Perform preventiv e maintenance using the follo wing checklist and the illustrations. Ref er to the Serv-

ice Manual if necessary.

(3) When the maintenance is finished, plug in the copier, turn ON the power and make some copies to

confirm that the copier is working properly .

3.2 Maintenance Performed Every 450,000 (DP4500) and 348,000 Copies (DP3500)

(1 ) Replace all the supplies. (2) Check the components in the drive section (gears, pulleys, timing belts, etc.). Replace them with

new ones if they are damaged.

(3) Check all the adhesives such as tape and Mylars if they are damaged or have become unstuck.

Replace them with new ones if necessary . (4 ) Check the performance of all the switches and sensors. Replace them with new ones if necessary. (5 ) Clean inside the copier thoroughly.

3.3 Cleaning the Units which Have Processed 75,000 Copies (DP4500)/58,000

Copies (DP3500)

Clean inside the machine as needed following the checklist.

3.4 Preventive Maintenance Checklist

Symbols used in the checklist

Cleaning Lubrication Replacement Operation check Date

A Clean with alcohol

Clean with soft pad, cloth or vacuum cleaner

L Launa 40

Coating SI Silicon oil W White grease

(Molycoat)

AV Alvania No.2

The number of sheets consumed before replacement (Value x 1,000)

Replace if deformed or damaged

After cleaning or replacement, confirm there is no problem.

User name

Serial No.

Inspector’s

name

Remarks

Page 81

[Preventive Maintenance Checklist]

Notes: 1. Perform cleaning and apply lubrication every 150,000 copies for DP4500 and 116,000 copies for

DP3500. Apply lubrication to the replacement parts according to the replacement cycle.

2. Values under “Replacement” indicate the replacement cycle for the DP4500/DP3500.

3. <P-I> under “Remarks” indicates page and item number in the Parts List.

4. The replacement cycle of the parts in the feeding section depends on the number of sheets fed from each paper source.

5. Do not put oil on the rollers, belts and belt pulleys.

Replace-

Section Items to check Cleaning

Scanner

Laser unit

Drive system

Feeding

section

1. Original glass

2. ADF original glass

3.Mirror-1

4. Mirror-2

5. Mirror-3

6. Reflector

7.Lens

8. Exposure lamp

9. Automatic original detection sensor

10.Slide sheet (front and rear)

11.Slit glass

12.Main motor drive unit gear

13.Pickup roller (upper and lower)

14.Feed roller (upper and lower)

15. Separation roller (upper and lower)

16. Transport roller

17. Paper guide (all)

18.Drive gear (tooth face and shaft)

19.One side of the GCB bushing to which the shaft is inserted

20. Registration roller

21. Paper guide

or A *1 or A

or A <P9

A <P14-I7>

A <P18-I19>

Lubri- -ment Operation Remarks

cation (x1,000 check <P-I>

sheets)

<P20-I2>

-I41,42>

W W 80/80 *2

<P13-I20>

W 80/80 *2

<P13-I20>

AV 80/80 *3

<P13-I9>

W*4

<P18

-I1,7,12>

Page 82

Section Items to check Cleaning

Bypass

feed unit

Drum

Main charger

22. Pickup roller

23. Feed roller

24. Separation pad

25.Bypass tray

26.Drive gear (tooth face and shaft)

27.One side of the GCB bushing to which the shaft is inserted

28. Discharge lamp

29.Drum shaft

30. Photoconductive drum

31.Ozone filter

32. Charger case

33. Charger wire

34.Contact point of terminals

35. Charger wire cleaner

36. Grid

Replace-

Lubri- -ment Operation Remarks

cation (x1,000 check <P-I>

sheets)

80/80 <P17-I18> 80/80 <P17-I14> 80/80 <P16-I4>

150/116 *5

<P24-I31>

150/116 <P10-I16>

150/116

150/116 <P22-I15>

<P22-I10>

<P22-I3>

Transfer/

separation

charger

Cleaner

37. Charger case

38. Transfer charger wire

39. Separation charger wire

40. Pre-transfer guide

41. Post-transfer guide

42. Separation supporter

43. Terminal cover

44.Contact point of terminals

45.Whole unit

46. Drum cleaning blade

47. Toner bag

or A or A

150/116

150/116 *8

8/8

<P23-I6>

<P23-I12>

<P24-I4> Should be replaced togeth-

er with toner

by operator <P27-I30>

Page 83

Section Items to check Cleaning

Cleaner

Developer

unit

Fuser unit

ADU

48. Recovery blade

49.Separation finger for drum

50.Whole unit

51. Developer material

52.Front shield

53.Oil seal (5pcs.)

54. Guide roller

55.Developer unit lower stay

56.Toner car tridge dr ive gear shaft

57.Inside of the toner cartridge stay

58.Fuser roller

59. Pressure roller

60.Separation finger for fuser roller

61.Separation finger for pressure roller

62. Pressure roller cleaning roller

63.One side of the cleaning roller to which the shaft is inserted

64.Thermistor (2pcs.)

65.Fuser unit entrance guide

66. Exit/reverse guide

67.Exit roller

68. Drive gear

69. Transport roller (upper, middle and lower)

70.One side of the GCB bushing to which the shaft is inserted

71.One side of the plastic bushing to which the shaft is inserted

72. Paper guide

or A <P25-I9>

A <P28-I10> A A A <P30-I2>

Replace-

Lubri- -ment Operation Remarks

cation (x1,000 check <P-I>

sheets)

<P24-I18>

150/116

150/116 *10

AV 450/348 *11

150/116 *12

150/116 *13

150/116 *14

<P24-I13>

<P25-I34>

<P25-I33>

<P29-I5>

<P29-I1>

<P30-I13> <P29-I10>

<P29-I8>

<P32

-I7,14>

Page 84

542 863 91710

115157

35 34

28 3332

65596066675864

62,63

4630

48 72

49 42 37

15 21 16141353

[Front side]

Page 85

Remarks “*” in the Preventive Maintenance Chec k List

*1 Original glass

Clean both sides of the original glass.

Note: Make sure that there is no fingerprints or oil staining on part of the original glass on where the original

scale is mounted since the shading correction plate is located below the scale to be scanned.

*2 Pickup roller and feed roller

Apply white molycote of quantity like one grain of rice to the shaft of the idler gear (see the figure below) when the pickup roller and feed roller are replaced with new ones.

Notes: 1. Do not put the white molycote to the idler gear tooth and the other parts.

2. Do not put oil to the roller surface. In case that it was, wipe it off in the same manner of the cleaning with alcohol.

Apply white molycote

*3 Separation roller

Apply Alvania No .2 ov er the entire inner surf ace of the spring. Put some silicon oil on a cloth and wipe parts of holder shown in the following figure with it when the separation roller is replaced with a new one.

Note: Do not put oil or grease on the roller surface. In case that they were, wipe them off in the same manner

of the cleaning with alcohol.

Apply grease on the inner surface

Apply silicon oil

Page 86

*4 Drive gears in the paper feeding section (teeth face and shafts)

Apply some white molycote to the teeth faces and shafts of the drive gears.

Note: Make sure that oil is not running over or scattered around as the gear is rotated coming into the clutch

after applying molycote to the gear which is located near the clutch. The quantity of molycote should be smaller than that to be applied to the other parts.

*5 Phtoconductive drum

Refer to “4.2 Checking and Cleaning of Photoconductive Drum”.

*6 Main charger case/main charger wire

Clean the main charger case and wire with a cloth soaked in water and then squeezed tightly.

Note: Be careful of the following when attaching a new wire (length: 363mm).

• Insert the wire securely into the V-grooves of the front and rear sides.

• Do not twist the wire.

• Do not touch the wire with your bare hand.

*7 T ransf er/separation charger case and transfer/separation charger wire

Clean the transfer/separation charger case and wire with a cloth soaked in water and then squeezed tightly.

Notes: 1. Do not deform the metal plate of the pre-transfer guide.

2. Be careful of the following when attaching a new wire (length: 353mm).

• Insert the wire securely into the V-grooves of the front and rear sides.

• Do not twist the wire.

• Do not touch the wire with your bare hand.

*8 Drum cleaning blade

Since the edge of the blade is breakable and can be easily damaged by matters such as the adherence of paper dust. Replace the cleaning blade with a new one if poor images are copied due to the damaged blade regardless of the number of copies which have been made.

*9 Separation fingers for the drum

The paper jam may be caused if the tip of the separation finger is damaged or deformed. If there is any problem with it, replace the finger with a new one regardless of the number of copies which have been made. If any mark which was made by the finger appears on the copied image , clean the tip of the finger .

Notes: 1. Wipe the tip of the finger lightly with a dry cloth trying not to deform it.

Do not leave the lint on the tip.

2. Apply patting power to the tip of the fingers and drum surface after replacing or cleaning them to reduce the load on the drum surface by the finger.

Page 87

*10 Developer material

Be sure to perform the auto-toner adjustment after replacing the developer material.

*1 1 Oil seal Locations of the oil seals used in this developer unit (5 in total)

a. One at the rear side of the developer sleeve shaft b. Two at both sides of the shaft of mixer-1 c. Two at both sides of the shaft of mixer-2

Procedure for replacement of the oil seal

1. Stick something thin like a screwdriver into the depression of the oil seal to take it out.

2. Push in the new oil seal in parallel with the frame of the developer unit or bushing of the mixer shaft paying attention to its direction.

3. Apply grease (Alvania No .2; quantity lik e one grain of rice) evenly over the entire surface of the oil seal. Assemble the mixer and developer sleeve.

Note: Wipe off excessive grease.

4. Apply grease (Alvania No .2; quantity lik e one or two grains of rice) on the entire surface of the shafts of the mixer and the developer sleeve evenly, and attach the bushings.

(Bushing side)

Grease

Oil seal

(Inside of frame)

Grease

Excessive grease

Shaft

Page 88

*12 Fuser roller and pressure roller

Refer to “4.5 Checking and Cleaning of Fuser Roller and Pressure Roller”.

*13 Separation fingers for fuser roller and pressure roller

The paper jam may be caused if the tip of the finger is damaged or deformed. If there is any problem with it, replace the finger with a new one regardless of the number of copies which have been made. Do not damage the tip of the finger during the cleaning. The finger ma y be damaged if the toner adhering to the tip of it is scraped off forcibly. Replace the finger if the toner is sticking to it heavily.

*14 Pressure roller cleaning roller

Refer to “4.4 Checking and Replacement of Pressure Roller Cleaning Roller”.

*15 Thermistor

Clean the thermistor with alcohol if the toner or dirt is sticking to it when the fuser roller is replaced. Do not deform or damage the thermistor during the cleaning. Replace the thermistor with a new one if it is damaged or deformed regardless of degree.

Page 89

3.5 PM Kit

Item Part name Qty.

1 Developer material D-3500 1 2 Drum cleaning blade BL-3500D 1 3 Separation finger for drum SCRAPER-DRUM 3 4 Main charger wire WIRE-CH-363 1 5 Main charger grid GRID-220 1 6 Transfer charger wire WIRE-CH-060*353 1 7 Separation charger wire WIRE-CH-060*353 1 8 Ozone filter FILTER-OZ-320 1

9 Fuser roller HR-3500-U 1 10 Pressure roller HR-3500-L 1 11 Pressure roller cleaning roller SHAFT-CLN-P/R 1 12 Separation finger for fuser roller SCRAPER-H/R 6

[Location of PM parts]

4529

8 7

Page 90

3.6 Jig List

Item

Door switch jig 100 1 Doctor-sleeve jig 100 2 Brush 1 00 3 Current measuring jig 10 0 4 Wire holder jig 10 0 5 Downloading jig (DLM board) 100 6 Downloading jig (DLS board) 10 0 7 Blade releasing jig 100 8 Developer material nozzle 100 9

Parts list

Page Item

Page 91

Page 92

4. PRECAUTIONS FOR STORING/HANDLING SUPPLIES AND PARTS

4.1 Precautions for Storing TOSHIBA Supplies

A. Toner and De veloper Material

Toner and developer material should be stored in a shaded place where the ambient temperature is between 10 to 35°C (no condensation), and should be also protected from direct sunlight during transportation.

B. Photoconductive Drum

Like the toner and developer material, the photoconductive drums should be stored in a dark place where the ambient temperature is between 10 to 35°C (no condensation). Keep the drum awa y from places where it may be exposed to high humidity, chemicals and/or chemical gases.

C. Drum Cleaning Blade

This blade should be stored horizontally on a flat place where the ambient temperature is between 10 to 35°C, and should be also protected from high humidity, chemicals and/or chemical gases.

D. Fuser Roller

Keep the fuser roller away from place where it may be subjected to high humidity, chemicals and/or chemical gases.

E. Cleaning Roller

Keep the cleaning roller away from place where it may be exposed to high humidity, chemicals and/or chemical gases.

F. Cop y P aper

Do not store copy paper in place where it ma y be subjected to high humidity. After a package is opened, be sure to store the paper in a storage bag.

4.2 Checking and Cleaning of Photoconductive Drum

(1 ) Use of gloves Since fingerprints or oil stains on the drum surface affects the quality of the copy image and degrades the characteristics of the photoconductor, do not touch the drum surface with y our bare hands.

(2 ) Handling precautions As the drum surface is very sensitive, be sure to handle the drum carefully when installing or removing it so as not to damage its surface. When the drum is replaced with a new one, apply patting powder (lubricant) on the entire surface of the new drum (including both edges to where the OPC is not coated) and separation finger of the cleaner before installing them. The drum counter must be cleared to 0 (zero) in the setting mode 08 – 401.

Page 93

Note:

1. Application of the patting powder is to reduce friction among the drum, the cleaning blade and the

separation finger . If this process is not perf ormed, the drum and the cleaning blade may be damaged.

2. Remove any fibers or lint adhering to the blade since they can damage the drum and blade, or allows

defective cleaning.

(3 ) Installation of the copier and storage of the drum Do not install the copier in a place where it may be exposed to high temper ature, high humidity, chemicals and/or chemical gas. Do not leave the drum in a brightly lit place for a long time. Otherwise, it would be fatigued and causes background fogging on the copied image right after it is installed in the machine. How ever, this phenomenon will decrease as time elapses.

(4 ) Cleaning the drum At the preventive maintenance, wipe the entire surface of the drum softly using the specified cleaning cotton (dry soft pad). Use sufficiently thick cleaning cotton so as not to touch the drum surface directly with your fingertips or nails. Remove y our rings and wristwatch before cleaning so as not to damage the drum. Do not use organic solvents such as alcohol or silicone oil as they have a bad influence on the drum. Do not use selenium refresher either.

(5 ) Scratches on the photoconductive drum surface If the surface is scratched and the aluminum base is exposed, black spots or streaks will appear on the copied images. Since those scratches can damage the cleaning blade, replace the drum with a new one.

(6 ) Used photoconductive drums Dispose of the used drums following the regulations regarding industrial waste established by your local municipal office.

4.3 Checking and Cleaning of Drum Cleaning Blade

(1 ) Handling Precautions Since the edge of the cleaning blade performs the cleaning operation, pay attention to the followings:

• Do not hit or rub the blade edge with anything hard.

• Do not rub the edge with a dry cloth or soft pad.

• Do not stain the edge with oil or fingerprints, etc.

• Do not put solvents such as paint thinner on the blade.

• Do not leave lint or dirt on the blade edge.

• Do not put the blade close to a heat source.

(2) Cleaning Clean the blade edge softly with a cloth soaked in water and afterwards squeezed hard.

Page 94

4.4 Checking and Replacement of Pressure Roller Cleaning Roller

(1 ) Handling Precautions Do not put solvents such as paint thinner on the cleaning roller .

(2 ) Defective Cleaning and Corrective Action Judge if there is defectiv e cleaning by seeing the toner left on the pressure roller . If the toner is adhering to the roller heavily, cleaning has not performed sufficiently. In this case , replace the cleaning roller with new one. The cleaning roller is gradually degraded due to being sujected to the heat from the fuser roller and toner adhesion. Replace it with new one after a certain amount of copies have been made .

4.5 Checking and Cleaning of Fuser Roller and Pressure Roller

(1 ) Handling Precautions

a. Fuser roller

• Do not put oil, fingerprints, etc. on the fuser roller .

• As a thin fluoroplastic coating is applied on the roller, def ectiv e cleaning can be caused by hitting or rubbing the roller surface with something hard.

b . Pressure roller

• Do not put oil, fingerprints, etc. on the pressure roller .

(2) Checking

• Check the fuser roller for staining and damage. Clean it if necessary.

• Clean the separation fingers and check if the tips are damaged.

• Check the cleaning effect of the cleaning roller .

• Check if the thermistor is in proper contact with the fuser roller.

• Check the fusing condition of the toner image.

• Check the gap between the entrance guide and the pressure roller .

• Check if the the fuser roller is rotated properly .

(3 ) Cleaning the fuser roller Paper jam occurs when the fuser roller is dirty. Clean the roller surface with a cloth. It can be cleaned effectively while the roller is slightly warm.

Note:

Do not rub or try to scrape off the toner from the fuser roller using your nails or anything hard since the roller can be easily damaged. Do not apply silicone oil to the fuser roller .

Page 95

Page 96

5. TROUBLESHOOTING

5.1 Diagnosis and Prescription for Each Error Code

5.1.1 Paper transport jam

[E01] Leading edge of paper not reaching the exit sensor [E02] Trailing edge of paper not passing the exit sensor

Open the jam access cover. Is there any paper on the transport path?

YES

Remove the paper .

▼▼

▼

▼▼

Is the exit sensor working? (P erf orm the input check in the test mode: 03-[FAX]ON/[2]/[B])

▼

1. Check if the connector of the exit sensor is disconnected.

▼▼

▼

2. Check if the connector J315 on the LGC board is disconnected.

3. Check if the connector pins are disconnected and the harnesses are open-circuited.

4. Check if the conductor pattern on the LGC board is short- or open-circuited.

5. Replace the exit sensor .

YES

▼▼

▼

▼▼

Is the registration clutch working? (Perf orm the output check in the test mode: 03-108/158)

6 . Replace the LGC board.

1 . Check if the connector of the registration clutch is disconnected.

▼▼

▼

2 . Check if the connector J313 on the LGC board is disconnected.

3. Check if the connector pins are disconnected and the harnesses are open-circuited. 4 . Check if the conductor pattern on the LGC board is short- or open-circuited. 5 . Replace the registration clutch. 6 . Replace the LGC board.

YES

▼▼

▼

▼▼

Check the registration roller . Replace it if it is worn out.

Page 97

[E03] Paper remaining inside the copier at power ON

Open the cover of the unit/area whose picture is flashing on the control panel. Is there any paper on the transport path? (Refer to the following tab le)

YES

Remove the paper .

▼▼

▼

▼▼

▼

Is the sensor in the jamming area working? (Perf orm the input check in the test mode: ref er to the following table.)

1 . Check if the connector of the sensor is disconnected.

▼▼

▼

2 . Check if any of the connectors on the LGC board is disconnected.

YES

▼▼

▼

▼▼

Replace the LGC board.

Relation between the jamming area and the corresponding sensors/covers (If a jam is occuring in the ADU, LCF or PFP, check the board in each unit.)

Jamming area Cover Sensor Test mode/Input check

Registration sensor 03-[F AX]ON/[2]/[A]

Registration area Jam access cover

Upper feed sensor 03-[F AX]OFF/[6]/[E]

Exit area Jam access cover Exit sensor 03-[FAX]ON/[2]/[B]

ADU entrance sensor 03-[F AX]OFF/[1]/[H]

ADU ADU

ADU exit sensor 03-[F AX]OFF/[1]/[G]

Feeding area

Side cover Lower feed sensor 03-[FAX]OFF/[7]/[E]

(main unit) LC F LCF side cover LCF feed sensor 03-[F AX]OFF/[5]/[G]

PFP upper feed sensor 03-[FAX]OFF/[2]/[D]

PFP PFP side cover

PFP lower feed sensor 03-[F AX]OFF/[4]/[D] Relay unit transport sensor-1

03-[F AX]ON/[4]/[H]

Relay unit Relay unit

Relay unit transport sensor-2

03-[F AX]ON/[3]/[E]

Page 98

[E09] HDD is abnormal

(1 ) Check if the connectors of the HDD are disconnected. (2 ) Check if the connector pins are disconnected and the harnesses are open-circuited. (3 ) Replace the HDD. (4 ) Replace the SYS board.

[E20] Paper fed from the upper cassette not reaching the registration sensor

Open the jam access cover. Is there any paper in front of the registration sensor?

YES

Remove the paper .

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Is the registration sensor working? (Perf orm the input check in the test mode: 03-[FAX]ON/[2]/[A])

1 . Check if the connector of the registration sensor is disconnected.

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2 . Check if the connector J313 on the LGC board is disconnected.

YES

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Is the upper cassette feed clutch working? (Perf orm the output check in the test mode: 03-201)

1. Check if the connector of the upper cassette feed clutch is disconnected.

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2 . Check if the connector J310 on the LGC board is disconnected.

3. Check if the connector pins are disconnected and the harnesses are open-circuited. 4 . Check if the conductor pattern on the LGC board for short- or open-circuited. 5 . Replace the upper cassette feed clutch. 6 . Replace the LGC board.

YES

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Check the upper cassette feed roller and separation roller. Replace them if the y are worn out.

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[E21] Paper fed from the lower cassette not reaching the registration sensor [E30] Paper fed from the PFP upper cassette not reaching the registration sensor [E33] Paper fed from the PFP lower cassette not reaching the registration sensor [E3C] Paper fed from the LCF not reaching the registration sensor

Open the jam access cover. Is there paper in front of the registration sensor?

YES

Remove the paper .

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▼

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▼

Is the registration sensor working? (Perf orm the input check in the test mode: 03-[FAX]ON/[2]/[A]

1 . Check if the connector of the registration sensor is disconnected.

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2 . Check if the connector J313 on the LGC board is disconnected.

YES

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Are the transport clutches working? (Perform the output check in the test mode: 03-203, 205)

6 . Replace the LGC board.

1 . Check if the connectors of the transport clutches are disconnected.

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2 . Check if the connector J311 on the LGC board is disconnected.

YES

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Check the transport roller. Replace it if it is worn out.

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[E22] Paper fed from the lower cassette not reaching the upper feed sensor [E31] Paper fed from the PFP upper cassette not reaching the upper feed sensor [E34] Paper fed from the PFP lower cassette not reaching the upper feed sensor [E3D] Paper fed from the LCF not reaching the upper feed sensor

Open the jam access cover. Is there paper in front of the upper feed sensor?

YES

Remove the paper .

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▼

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Is the upper feed sensor working? (P erf orm the input check in the test mode: 03-[F AX]OFF/[6]/[E])

1 . Check if the connector of the upper feed sensor is disconnected.

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2 . Check if the connector J313 on the LGC board is disconnected.

YES

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Are the transport clutches working? (Perform the output check in the test mode: 03-203, 205)

6 . Replace the LGC board.

1 . Check if the connectors of the transport clutches are disconnected.

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2 . Check if the connector J311 on the LGC board is disconnected.

YES

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Check the transport roller. Replace it if it is worn out.