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                        ®
magicolor   5430 DL magicolor   5430 DL
®
2005.04  2005.04  V Ve er r.3.0 .3.0
magicolor   5440 DL magicolor   5440 DL THEORY OF OPERATION
®
magicolor   5450 magicolor   5450
THEORY OF OPERATION
SERVICE MANUAL
®
magicolor  5430 DL magicolor  5430 DL
®
magicolor  5440 DL magicolor  5440 DL 
®
magicolor  5450 magicolor  5450
© 2005  KONICA MINOLTA  BUSINESS TECHNOLOGIES,  INC. © 2005  KONICA MINOLTA  BUSINESS TECHNOLOGIES,  INC.
Printed  in  Japan Printed  in  Japan
Use of this manual should be 
                    
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                        5430DL_5440DL_5450_TO_PDF.book  1 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS SAFETY AND IMPORTANT WARNING ITEMS Read carefully the Safety and Important Warning Items described below to understand  them before doing service work. IMPORTANT NOTICE Because of possible hazards to an inexperienced person servicing this product as well as  the risk of damage to the product, KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.  (hereafter called the KMBT) strongly recommends that all servicin
                    
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                        5430DL_5440DL_5450_TO_PDF.book  2 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS SAFETY WARNINGS [1] MODIFICATIONS NOT AUTHORIZED BY KONICA MINOLTA  BUSINESS TECHNOLOGIES, INC. KONICA MINOLTA brand products are renowned for their high reliability. This reliability is  achieved through high-quality design and a solid service network. Product design is a highly complicated and delicate process where numerous mechanical,  physical, and electrical aspects have to be taken into consid
                    
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                        5430DL_5440DL_5450_TO_PDF.book  3 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS [2] CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE Konica Minolta brand products are extensively tested before shipping, to ensure that all  applicable safety standards are met, in order to protect the customer and customer engi- neer (hereafter called the CE) from the risk of injury. However, in daily use, any electrical  equipment may be subject to parts wear and eventual failure. In order to maintain
                    
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                        5430DL_5440DL_5450_TO_PDF.book  4 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Power Plug and Cord  Check whether the power cord is not stepped on or  pinched by a table and so on. Overheating may occur there, leading to a risk of fire.  Do not bundle or tie the power cord.  Overheating may occur there, leading to a risk of fire.   Check whether dust is collected around the power plug  and wall outlet. Using the power plug and wall outlet without removing  dust may 
                    
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                        5430DL_5440DL_5450_TO_PDF.book  5 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Ground Connection  Check whether the product is grounded properly. If current leakage occurs in an ungrounded product, you  may suffer electric shock while operating the product.  Connect power plug to grounded wall outlet. 2. Installation Requirements WARNING: Prohibited Installation Places  Do not place the product near flammable materials or vola- tile materials that may catch fire. A r
                    
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                        5430DL_5440DL_5450_TO_PDF.book  6 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS CAUTION: Inspection before Servicing  Before conducting an inspection, read all relevant docu- mentation (service manual, technical notices, etc.) and  proceed with the inspection following the prescribed pro- cedure, using only the prescribed tools. Do not make any  adjustment not described in the documentation. If the prescribed procedure or tool is not used, the prod- uct may break and a risk of 
                    
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                        5430DL_5440DL_5450_TO_PDF.book  7 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Safety Checkpoints  Do not allow any metal parts such as clips, staples, and  screws to fall into the product. They can short internal circuits and cause electric shock  or fire.  Check wiring for squeezing and any other damage.  Current can leak, leading to a risk of electric shock or  fire.  Carefully remove all toner remnants and dust from electri- cal parts and electrode units such as
                    
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                        5430DL_5440DL_5450_TO_PDF.book  8 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Safety Checkpoints  After replacing a part to which AC voltage is applied (e.g.,  optical lamp and fixing lamp), be sure to check the installa- tion state. A risk of fire exists.  Check the interlock switch and actuator for loosening and  check whether the interlock functions properly. If the interlock does not function, you may receive an  electric shock or be injured when you insert your
                    
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                        5430DL_5440DL_5450_TO_PDF.book  9 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS CAUTION: HANDLING OF SERVICE MATERIALS  Unplug the power cord from the wall outlet. Drum cleaner (isopropyl alcohol) and roller cleaner (ace- tone-based) are highly flammable and must be handled  with care. A risk of fire exists.  Do not replace the cover or turn the product ON before  any solvent remnants on the cleaned parts have fully  evaporated. A risk of fire exists.  Use only a small amount
                    
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                        5430DL_5440DL_5450_TO_PDF.book  10 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS [3] MEASURES TO TAKE IN CASE OF AN ACCIDENT 1. If an accident has occurred, the distributor who has been notified first must immedi- ately take emergency measures to provide relief to affected persons and to prevent further damage. 2. If a report of a serious accident has been received from a customer, an on-site evalua- tion must be carried out quickly and KMBT must be notified. 3. To determine the
                    
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                        5430DL_5440DL_5450_TO_PDF.book  11 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS [5] Laser Safety  This is a digital machine certified as a class 1 laser product. There is no possibility of  danger from a laser, provided the machine is serviced according to the instruction in this  manual. 5.1 Internal Laser Radiation semiconductor laser Maximum power of the laser diode 15 mW Maximum average radiation power (*) 7.2 µW Wavelength 770-800 nm *:at laser aperture of the Print Head 
                    
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                        5430DL_5440DL_5450_TO_PDF.book  12 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS the U.S.A., Canada (CDRH Regulation)  This machine is certified as a Class I Laser product under Radiation Performance Stan- dard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory  for Laser products marketed in the United States and is reported to the Center for  Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration of  the U.S. Department of H
                    
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                        5430DL_5440DL_5450_TO_PDF.book  13 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS Finland, Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT VAROITUS!  Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saat- taa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle laser- säteilylle. puolijohdelaser Laserdiodin suurin teho 15 mW aallonpituus 770-800 nm VARNING!  Om apparaten används på annat sätt än i denna bruksanvisning specificerats,  kan a
                    
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                        5430DL_5440DL_5450_TO_PDF.book  14 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS 5.2 Laser Safety Label  A laser safety label is attached to the the machine as shown below. 4138safe004c0 S-14                                                                                                                                                                                                                                                                                                   
                    
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                        5430DL_5440DL_5450_TO_PDF.book  15 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS 5.3 Laser Caution Label  A laser caution label is attached to the inside of the machine as shown below. 4138safe001c0 5.4 PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT  When laser protective goggles are to be used, select ones with a lens conforming to the  above specifications.  When a disassembly job needs to be performed in the laser beam path, such as when  working around the printerhead and P
                    
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                        5430DL_5440DL_5450_TO_PDF.book  16 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS WARNING INDICATIONS ON THE MACHINE Caution labels shown are attached in some areas on/in the machine. When accessing these areas for maintenance, repair, or adjustment, special care should  be taken to avoid burns and electric shock.  High voltage  High temperature 4138fsS001c0 S-16                                                                                                                       
                    
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                        5430DL_5440DL_5450_TO_PDF.book  17 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS  High voltage  High voltage 4138fsS002c0 S-17                                                                                                                                                                                                                                                                                                                                                                     
                    
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                        5430DL_5440DL_5450_TO_PDF.book  18 ページ  2005年4月12日 火曜日 午後4時49分 SAFETY AND IMPORTANT WARNING ITEMS S-18                                                                                                                                                                                                                                                                                                                                                                                                              
                    
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                        5430DL_5440DL_5450_TO_PDF.book  1 ページ  2005年4月12日 火曜日 午後4時49分 THEORY OF OPERATION SERVICE MANUAL ® magicolor  5430 DL ® magicolor  5440 DL  ® magicolor  5450 Main Unit 2005.04 Ver. 3.0