SERVICE MANUAL - O. Rensch OHG

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2DC 1-6-1 Precautions for assembly and disassembly (1) Precautions • Be sure to turn the main switch off and disconnect the power plug before starting disassembly. • When handling PCBs, do not touch connectors with bare hands or damage the board. • Do not touch any PCB containing ICs with bare hands or any object prone to static charge. • Use only the specified parts to replace the fixing unit thermostat. Never substitute electric wires, as the copier may be seriously damaged. • Do not perform aging without the waste toner tank installed during maintenance service. • Use the following testers when measuring voltages: Hioki 3200 Sanwa MD-180C Sanwa YX-360TR Beckman TECH300 Beckman DM45 Beckman 330* Beckman 3030* Beckman DM850* Fluke 8060A* Arlec DMM1050 Arlec YF1030C * Capable of measuring RMS values. • Prepare the following as test originals: 1. NTC (new test chart) 2. NPTC (newspaper test chart) 1-6-1
2DC 1-6-2 Removing the process unit 1. Open the front top cover. 2. Open the front cover. 3. Lift the process unit together with the toner container out of the copier. Front top cover Front cover Process unit Figure 1-6-1 Removing the process unit CAUTIONS • After removing the process unit, seal it in the protective bag and place it on flat surface. Do not place the process unit in a dusty area. • Do not give impact to the process unit. • Do not place floppy disks near the process unit. 1-6-2
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KM-1500 SERVICE MANUAL Published in
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Safety precautions This booklet pro
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1. Installation Precautions WARNING
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• Do not pull on the AC power cor
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2DC (8) The eraser lamp does not tu
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2DC 1-1-1 Specifications Type......
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2DC (2) Operation panel * ⁄ ( ^ @
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2DC 1-3-1 Unpacking and installatio
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CAUTIONS • Be sure to hold both t
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2DC 3. Remove the nine tapes, the t
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2DC 3. Remove the process unit from
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2DC 9. Hold the process unit stable
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2DC Connect the power cord. 1. Conn
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2DC 4) Press down on the stopper ex
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2DC 1-3-2 Installing the document p
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2DC CAUTION Be sure to tighten the
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2DC 1-4-1 Maintenance mode The copi
Page 35 and 36: 2DC Section Fixing and cleaning Ope
Page 37 and 38: 2DC Maintenance item No. U005 U019
Page 43 and 44: 2DC Maintenance item No. U087 Descr
Page 63 and 64: 2DC 1-5-1 Paper misfeed detection (
Page 65 and 66: Section Jam code Description Condit
Page 67 and 68: Problem Causes/check procedures Cor
Page 69 and 70: 2DC • DP Problem Causes/check pro
Page 71 and 72: 2DC Code Contents Causes Remarks Ch
Page 73 and 74: 2DC Code Contents Causes Remarks Ch
Page 75 and 76: 2DC 1-5-3 Image formation problems
Page 77 and 78: 2DC (3) Image is too light. Causes
Page 79 and 80: 2DC (9) Black dots appear on the im
Page 81 and 82: 2DC (15)Fixing is poor. Causes 1. W
Page 83 and 84: Problem Causes Check procedures/cor
Page 85: 2DC 1-5-5 Mechanical problems Probl
Page 89 and 90: 2DC (2) Removing the right cover 1.
Page 91 and 92: 2DC 1-6-5 Removing the MP feed roll
Page 93 and 94: 2DC 1-6-6 Removing the transfer rol
Page 95 and 96: 2DC (2) Removing the main board 1.
Page 97 and 98: 2DC (3) Removing the power supply b
Page 99 and 100: 2DC 1-6-8 Removing the main motor a
Page 101 and 102: 2DC 10. Remove the main board (See
Page 103 and 104: 2DC 1-6-9 Removing and splitting th
Page 105 and 106: 2DC (1) Removing the separation cla
Page 107 and 108: 2DC (3) Removing the heat roller WA
Page 109 and 110: 2DC (4) Removing the thermistor 1.
Page 111 and 112: 2DC (6) Removing the press roller W
Page 113 and 114: 2DC 4. Remove the two screws. 5. Sl
Page 115 and 116: 2DC 6. Remove three screws. 7. Remo
Page 117 and 118: 2DC 1-6-12 Removing the ISU unit 1.
Page 119 and 120: 2DC 1-6-13 Removing the exposure la
Page 121 and 122: 2DC 1-6-14 Removing the scanner mir
Page 123 and 124: 2DC 7. Remove three screws and then
Page 125 and 126: 2DC 1-6-16 Removing the main charge
Page 127 and 128: 2DC (2) Adjusting the center line o
Page 129 and 130: 2DC (4) Adjusting the amount of sla
Page 131 and 132: 2DC (6) Adjusting magnification of
Page 133 and 134: 2DC (8) Adjusting the scanner cente
Page 135 and 136: 2DC (10) Adjusting the DP magnifica
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2DC (12) Adjusting the DP trailing
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2DC (14) Adjusting the margins for
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2DC 2-1-1 Paper feeding system The
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2DC (2) Paper feeding mechanism Dri
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2DC Scanner unit Original ISU unit
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2DC 2-1-3 Electrophotographic syste
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2DC (2) Main charging (2-1) Photo c
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2DC (3) Exposure The charged surfac
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(3-2) Drum surface potential The la
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(5) Transfer The image developed by
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2DC (6-1) Fuser unit mechanism 0 !
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2DC 2-2-1 Electrical parts layout (
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2DC 2-3-1 Main board +5V ASIC debug
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(1) Eraser lamp control circuit The
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The AC power for the heater is appl
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(3) Polygon motor control circuit T
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2DC 2-3-4 Bias board The bias board
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(1) Interlock switch The interlock
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2DC 2-3-7 Operation board The opera
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2DC Timing chart No. 1 Continuous c
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2DC Timing chart No. 3 Continuous c
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KYOCERA MITA EUROPE B.V. Hoeksteen
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SERVICE MANUAL - O. Rensch OHG

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