Minolta Di850 Service Manual
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Minolta Di850 Service Manual

Field service
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Service Manual

[Field Service]
Di850

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Summary of Contents for Minolta Di850

  • Page 1: Service Manual

    Service Manual [Field Service] Di850...
  • Page 2 Dual references may be used on the following: Official Options name : Popular Options name EDH-5 : RADF C-403/C-404 : LT and LCT FN-115 : FNS FN-7 : FNS Cover Inserter C : PI PK-3 : PU TMG-2 ZK-2 : PZ In-System Writer : ISW...
  • Page 4 CONTENTS CONTENTS 1. DISASSEMBLY/ASSEMBLY SAFETY AND IMPORTANT WARNING ITEMS ..S-1 EXTERNAL SECTION........... 1-A-1 IMPORTANT NOTICE ....S-1 Replacing Ozone Filters ......1-A-1 Removing and Reinstalling DANGER, WARNING, AND CAUTION the External Cover........
  • Page 5 CONTENTS Removing and Reinstalling Removing and Reinstalling the Up/ the Charging Wire Cleaning Pad .... 1-F-3 Down Unit..........1-J-6 Removing and Reinstalling the PCL..1-F-3 Replacing the Up/Down Plate Wires ..1-J-7 Cleaning the Charging Corona TRAY 3 PAPER FEED UNIT......... 1-K-1 Unit/PCL ..........
  • Page 6 CONTENTS Removing and Reinstalling [12] Removing and Reinstalling Registration MC (MC1) ......1-N-5 the Actuator for Fixing Exit PS (PS2) ..1-O-8 Removing and Reinstalling ADU [13] Removing and Reinstalling Pre-registration MC (MC2)..... 1-N-6 Fixing Temperature Sensors 1 and 2 ..1-O-9 [10] Removing and Reinstalling [14] Removing and Reinstalling the Second Paper Feed Unit ....
  • Page 7 CONTENTS < FN > < PU > EXTERNAL SECTION...........1-R-1 EXTERNAL SECTION........... 1-T-1 Removing and Reinstalling the Removing the PU (Puncher) ....1-T-1 Rear Cover ..........1-R-1 PUNCH SECTION..........1-T-2 Removing and Reinstalling the Replacing the Punch unit ....... 1-T-2 Front Cover..........1-R-1 Replacing the Punch Clutch (MC1) ..
  • Page 8 CONTENTS 2. ADJUSTMENT (Image adjustment) .........2-72 [15] Running Test Mode ........2-72 HOW TO USE THIS SECTION......... 2-1 [16] Test pattern output mode ......2-73 Scope and Precautions ......2-1 [17] Test pattern density setting ......2-80 ADJUSTMENTS MADE WHEN REPLACING [18] Finisher adjustment ........2-80 PARTS ..............
  • Page 9 Positioning (FN-7 only) ......2-132 Parts Layout Drawing ..........4-1 [28] FNS Adjusting the Angle of the Stapling Di850 Parts Layout Drawing ......4-1 Stopper (FN-7 only) ....... 2-134 EDH-5 Parts Layout Drawing .....4-9 [29] FNS Adjusting the Angle of the Folding C-403/C-404 Parts Layout Drawing ..4-10...
  • Page 10 [10] Connecting the ISW connector ....5-11 UPDATING WITH ISW Trns ........5-12 Setting Up ISW Trns ........ 5-12 Copying Transfer Data (Update Data) ..5-17 Connecting the Di850 ......5-18 Updating ..........5-18 ISW Trns Messages ........ 5-23 Troubleshooting ISW Trns ....... 5-25...

  • Page 12: Safety And Important Warning Items

    IMPORTANT NOTICE Because of possible hazards to an inexperienced person servicing this copier as well as the risk of damage to the copier, Minolta Corporation strongly recommends that all servicing be performed only by Minolta-trained ser- vice technicians. Changes may have been made to this copier to improve its performance after this Service Manual was printed.

  • Page 13: Safety Warnings

    SAFETY WARNINGS MODIFICATIONS NOT AUTHORIZED BY MINOLTA Minolta copiers are renowned for their high reliability. This reliability is achieved through high-quality design and a solid service network. Copier design is a highly complicated and delicate process where numerous mechanical, physical, and electrical aspects have to be taken into consideration, with the aim of arriving at proper tolerances and safety factors.
  • Page 14 CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE Minolta copiers are extensively tested before shipping, to ensure that all applicable safety standards are met, in order to protect the customer and customer engineer (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.
  • Page 15 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Power Plug and Cord • 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 result in fire.
  • Page 16 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Ground Lead • Pay attention to the point to which the ground lead is connected. Connecting the ground lead to an improper point such as the points listed below results in a risk of explosion and electric shock: a.
  • Page 17 SAFETY AND IMPORTANT WARNING ITEMS CAUTION: Ventilation • The copier generates ozone gas during operation, but it is not sufficient to be harmful to the human body. If a bad smell of ozone is present in the following cases, ventilate the room. a.
  • Page 18 SAFETY AND IMPORTANT WARNING ITEMS DANGER: Work Performed with the Copier Powered • Take every care when servicing with the external cover detached. High-voltage exists around the drum unit. A risk of electric shock exists. WARNING: Safety Checkpoints • Check the exterior and frame for edges, burrs, and other damages. The user or CE may be injured.
  • Page 19 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 installation state. A risk of fire exists. • Check the interlock switch and actuator for loosening and check whether the interlock functions properly.

  • Page 20: Safety Information

    SAFETY INFORMATION DANGER: HANDLING OF MATERIALS FOR SERVICING • Toner and developer are not harmful substances, but care must be taken not to breathe excessive amounts or let the substances come into contact with eyes, etc. It may be stimulative. If the substances get in the eye, rinse with plenty of water immediately.

  • Page 21: Safety Circuits

    SAFETY INFORMATION SAFETY CIRCUITS This machine is provided with the following safety cir- Protection by L2 and L4 (fixing heater cuits to prevent machine faults from resulting in seri- lamps) overheating prevention circuit ous accidents. Overall protection circuit L2 and L4 (fixing heater lamps) overheating ACDB prevention circuit driver...
  • Page 22 SAFETY INFORMATION Protection by the hardware circuit The output voltages from TH1 and TH2 (fixing temperature sensor 2), TH3 (fixing tempera- ture sensor 3), and TH4 (fixing temperature sensor 4) are compared with the abnormality judgement reference value in the comparator circuit.

  • Page 23: Indication Of Warning On The Machine

    SAFETY INFORMATION INDICATION OF WARNING ON THE MACHINE Caution labels shown below are attached in some areas on/in the machine areas. When accessing these areas for maintenance, repair, or adjustment, special care should be taken to avoid burns and shock hazards. CAUTION VORSICHT ATTENTION...
  • Page 24 SAFETY INFORMATION Unplug the machine before removing platen glass. WARNING Debrancher le copieur avant de retirer la vitre d'exposition. DANGER Vor Entfernen des Vorlagenglases Netzstecker ziehen. WARNUNG Desenchufe la maquina antes de quitar el vidrio. ADVERTENCIA Estrarre la spina dalla presa prima di rimuovere il vetro di esposizione. AVVERTIMENTO Elektrische Teile DANGER...
  • Page 25 SAFETY INFORMATION Tray 1 Tray 2 CAUTION CAUTION DO NOT put your hand between the main body and tray; otherwise you may be injured. Tray 3 FN-7 Only CAUTION ATTENTION PRECAUCION CUIDADO CAUTION CAUTION ATTENTION VORSICHT Use care after opening the PRECAUCION ATTENZIONE paper exit outlet.
  • Page 26 SAFETY INFORMATION CAUTION WARNING WARNING Unplug the machine before removing panels. D brancher lÕappareil avant de retirer les panneaux arri res. Desenchufe la m‡quina antes de quitar los paneles. Desconecte a unidade da tomada antes de remover os pain is. Unplug the machine before removing panels.
  • Page 27 SAFETY INFORMATION WARNING Unplug the machine before removing panels. Débrancher l’appareil avant de retirer les panneaux arrières. Desenchufe la máquina antes de quitar los paneles. Desconecte a unidade da tomada antes de remover os painéis. Unplug the machine before removing panels.

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