SERVICE MANUAL - O. Rensch OHG

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2DC 2-3-8 Scanner board The scanner board consists of scanner driver circuit Q1 to Q5 and exposure lamp driver circuit U1, relays signals from engine board, main board, operation board, CCD board and optional document processor. Scanner board MOTA MOTNA MOTB MOTNB Driver circuit (U1) ISUMOTA ISUMOTNA ISUMOTB ISUMOTNB Scanner motor Engine board LAMP LAMPHI LAMPLOW Exposure lamp driver circuit (Q1, 2, 3, 4, 5) CCD board Inverter board Exposure lamp HPSWN Scanner home position switch Main board Operation board Optional DP Figure 2-3-13 Scanner board circuit block diagram 2-3-14
2DC Timing chart No. 1 Continuous copying of an A4R/8 1 /2" × 11" original onto two sheets of A4R/8 1 /2" × 11"R copy paper OVSYNC YC3-4 5397 ms HPSWN MOTA, MOTNA, MOTB, MOTNB MOTORN YC10-4 YC11-1,2,3,4 YC4-9 97 ms 367 ms 248 ms 99 ms 1375 ms MHVDR HVCLK FEDDRN YC8-5 YC7-7 YC4-1 100 ms 390 ms 263 ms 81 ms 263 ms 390 ms 89 ms REGDRN RESIT YC6-2 YC8-8 100 ms 100 ms EXITN YC7-10 ERASERN YC14-2 RTHVDR THVDR YC7-16 YC8-2 100 ms 157 ms 100 ms 167 ms PSEL1 YC7-11 PSEL2 HVISEL YC7-9 YC7-14 110 ms 110 ms 100 ms 100 ms 9 ms 2-4-1
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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
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2DC Section Fixing and cleaning Ope
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2DC Maintenance item No. U005 U019
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2DC Maintenance item No. U087 Descr
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2DC 1-5-1 Paper misfeed detection (
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Section Jam code Description Condit
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Problem Causes/check procedures Cor
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2DC • DP Problem Causes/check pro
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2DC Code Contents Causes Remarks Ch
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2DC Code Contents Causes Remarks Ch
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2DC 1-5-3 Image formation problems
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2DC (3) Image is too light. Causes
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2DC (9) Black dots appear on the im
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2DC (15)Fixing is poor. Causes 1. W
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Problem Causes Check procedures/cor
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2DC 1-5-5 Mechanical problems Probl
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2DC 1-6-2 Removing the process unit
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2DC (2) Removing the right cover 1.
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2DC 1-6-5 Removing the MP feed roll
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2DC 1-6-6 Removing the transfer rol
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2DC (2) Removing the main board 1.
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2DC (3) Removing the power supply b
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2DC 1-6-8 Removing the main motor a
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2DC 10. Remove the main board (See
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2DC 1-6-9 Removing and splitting th
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2DC (1) Removing the separation cla
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2DC (3) Removing the heat roller WA
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2DC (4) Removing the thermistor 1.
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2DC (6) Removing the press roller W
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2DC 4. Remove the two screws. 5. Sl
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2DC 6. Remove three screws. 7. Remo
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2DC 1-6-12 Removing the ISU unit 1.
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2DC 1-6-13 Removing the exposure la
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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
Page 137 and 138: 2DC (12) Adjusting the DP trailing
Page 139 and 140: 2DC (14) Adjusting the margins for
Page 141 and 142: 2DC 2-1-1 Paper feeding system The
Page 143 and 144: 2DC (2) Paper feeding mechanism Dri
Page 145 and 146: 2DC Scanner unit Original ISU unit
Page 147 and 148: 2DC 2-1-3 Electrophotographic syste
Page 149 and 150: 2DC (2) Main charging (2-1) Photo c
Page 151 and 152: 2DC (3) Exposure The charged surfac
Page 153 and 154: (3-2) Drum surface potential The la
Page 155 and 156: (5) Transfer The image developed by
Page 157 and 158: 2DC (6-1) Fuser unit mechanism 0 !
Page 159 and 160: 2DC 2-2-1 Electrical parts layout (
Page 161 and 162: 2DC 2-3-1 Main board +5V ASIC debug
Page 163 and 164: (1) Eraser lamp control circuit The
Page 165 and 166: The AC power for the heater is appl
Page 167 and 168: (3) Polygon motor control circuit T
Page 169 and 170: 2DC 2-3-4 Bias board The bias board
Page 171 and 172: (1) Interlock switch The interlock
Page 173: 2DC 2-3-7 Operation board The opera
Page 177 and 178: 2DC Timing chart No. 3 Continuous c
Page 179: KYOCERA MITA EUROPE B.V. Hoeksteen
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SERVICE MANUAL - O. Rensch OHG

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