toshiba_dp-4500_3500_sh.pdf

SERVICE HANDBOOK

DIGITAL PLAIN PAPER COPIER

DP4500/3500

Click the Navigation Pane button to open the overview area and

display bookmarks and thumbnails palettes.

Click the Bookmarks to open the Contents and display Bookmarks

created for the document. Click a bookmark's name to go to the

Page marked by that bookmark.

Click the Thumbnails to open the overview area and display

thumbnail images of each document page. Click a thumbnail to go

to the Page marked by that thumbnail.

GENERAL PRECAUTIONS REGARDING THE INSTALLATION

AND SERVICE FOR THE COPIER DP4500/3500

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

1. Transportation/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 for

its power source.

• The copier must be grounded for safety.

Never ground it to a gas pipe or a water pipe.

• Select a suitable place for installation.

Avoid 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 under-

neath.

• When servicing the machines with the main switch turned on, be sure not to touch live sections

and rotating/operating sections. Avoid exposure to laser radiation.

• Use suitable measuring instruments and tools.

• Avoid exposure to laser radiation during servicing.

Avoid 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.

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 warning 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 mate-

rials, 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 any 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 batteries

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.

Vorsicht :

Entsorgung des gebrauchten Batterien und RAM-ICs (inklusive

der Lithium-Batterie) nach Angaben des Herstellers.

1. ERROR CODE AND SELF-

DIAGNOSIS

2. ADJUSTMENT

3. PREVENTIVE MAINTENANCE

(PM)

4. PRECAUTIONS FOR STORING

/ HANDLING SUPPLIES AND

PA R T S

5. TROUBLESHOOTING

6. UPDATING THE FIRMWARE

7. WIRE HARNESS

CONNECTION DIAGRAMS

CONTENTS

1. ERROR CODE AND SELF-DIAGNOSIS ..................................................................................... 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 Test 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 ................................................................................................................... 2-34

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

2.9 Adjustment of Sideways Deviation of Sheet Caused by Paper Feeding .................................. 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

DP4500/3500 CONTENTS

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: