SERVICE MANUAL - O. Rensch OHG

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2DC 2-3-2 Engine board Main board (KP-5060) Laser scanner unit Cassette switch Registration sensor Paper sensor Bias board (KP-5067) FET +24V2 +24V3 RSTIN PLGCLK +24V3 PLGDRN PLGRDYN FAN1 FAN2 Reset IC U3 RSTN Heater lamp HEATN control circuit ZCROSS EXITN MHVDR, THVDR, RTHDR, HVISEL, HVCLK +24V2 SLEEP +24V3 +5V TONER TNFULL Engine board (KP-5061) SWIN RESIT PAPERN THERMA CPU U1 ISUMOTA, ISUMOTNA ISUMOTB, ISUMMOTONB LAMP, LAMPHI, LAMPLOW HPSWN PFMDRN PFSEN, PFPFPER, PFCLK MRDYN EEDIO EESCK HANDSN ERASER MOTORN EEPROM U5 FEDDRN RESDRN MPFDRN +24V3 Eraser lamp control circuit Scanner board (KP-5063) Scanner home position sensor Exposure lamp Main motor Feed clutch Registration clutch MP feed clutch MP paper sensor Eraser lamp Scanner motor Optional DP CCD board Inverter board Optional paper feeder Toner sensor High voltage output circuit Waste toner sensor +24V2 Interlock switch +24V1 +24V2 5 V DC output circuit 24 V DC output circuit Exit sensor Zero cross signal detection circuit Triac Cooling fan AC input Heater lamp High voltage board Power supply board Thermistor Figure 2-3-2 Engine board circuit block diagram 2-3-2
(1) Eraser lamp control circuit The CPU (U1) turns pin #86 (ERASER) of U1 to H level, transistors (Q18) turns on consequently, and the 24 V DC given at pin #1 of connector YC14 applies to the eraser lamps. The eraser lamps thus illuminate as the current flows through the eraser lamp, the pin #2 of connector YC14, resistors (R109, R110, and R111), transistor Q18 and the ground. 2DC Engine board CPU U1 Eraser lamp cotrol circuit +24V3 YC14 Eraser lamp PDL15/AD15 86 ERASER 2 3 1 Q16 R109 R110 R111 1 2 3 PGND ERASPW ERASER GND Figure 2-3-3 Eraser lamp control circuit 2-3-3
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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.
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
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: 2DC 2-3-1 Main board +5V ASIC debug
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 and 174: 2DC 2-3-7 Operation board The opera
Page 175 and 176: 2DC Timing chart No. 1 Continuous c
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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