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等级: 六袋长老
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Bsd-on:CH9.7 Dispense Motor has failed. Procedure Enter the Diag. Enter DC330[093-003](Dispense Motor). Select Start. Dispense Motor is heard rotating. (ON duration is 2 sec.) Yes No Open the PWB Chassis. (REP 2.1.1) +24VDC is measured between J430-8 (+) on the IOT PWB and GND (-). Yes No Seeing BSD CH1.8, check the +24VDC circuit to J430-8 on the IOT PWB. Turn off the power. Disconnect Connectors P/J201 on the Dispense Motor. Measure the wire-wound resistance of the Dispense Motor. The resistance between P201-1 and -2 pins is between 22.0 and 27.0 ohms. Yes No Replace the Dispense Motor (PL 12.4). Check the following for continuity: IOT PWB J436-A2 to Dispense Motor J201-1 IOT PWB J436-A1 to Dispense Motor J201-2 Every resistance is 1 ohm or less. Yes No Check any wire with more than 1 ohm for an open wire or poor contact. Perform the following: Disconnect and reconnect the cable between J431 on the IOT PWB and J401 on the MCU PWB. Remove the Toner Dispenser. (REP 12.1.2) Check that there is no such load as poor Auger rotation, toner blocking and Drive gears binding. If no problem is found, replace the Flexible Print Cable (PL 2.1), IOT PWB (PL 2.1) and MCU PWB (PL 2.1) in order. Open the PWB Chassis. (REP 2.1.1) +5VDC is measured between Relay Connectors J690-1 (+) and -3(-). Yes No +5VDC is measured between J406-B8 (+) and -B6 (-) on the MCU PWB. Yes No +5VDC is measured between J400-2 (+) on the MCU PWB and GND (-). Yes No Seeing BSD CH1.6, check the +5VDC circuit to J400-2 on the MCU PWB. Replace the MCU PWB (PL 2.1). Check the wires between J406-B8 on the MCU PWB and Relay Connector J470-1, and between J406-B6 on the MCU PWB and Relay Connector J470-3 for an open wire or poor contact. Disconnect Relay Connector J470. +3.3VDC is measured between Relay Connector J470-2 (+) and GND (-). Yes No Check the wire between Relay Connector J470-2 and J406-B7 on the MCU PWB for a short to the frame. If the wire is good, replace the MCU PWB (PL 2.1). Turn off the power. Remove the Toner Dispenser. (REP 12.1.2) Check the following for continuity: Relay Connector P690-1 to Low Toner Sensor J140-3 Relay Connector P690-2 to Low Toner Sensor J140-2 Relay Connector P690-3 to Low Toner Sensor J140-1 Every resistance is 1 ohm or less. Yes No Check any wire with more than 1 ohm for an open wire or poor contact. Remove the Low Toner Sensor. There is any toner on the detection area of the Low Toner Sensor. Yes No Check for toner blocking, poor Auger rotation, gears binding, etc. Replace defective parts, if any (PL 12.7). Replace the Low Toner Sensor (PL 12.7). |
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等级: 三袋长老
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按原理来说是the Low Toner Sensor检测不到有粉下来,可能是Dispense Motor不转或者是粉结块导致无法下粉,当然the Low Toner Sensor也是有可能坏的,总之就绕着这两个零件或者相关的线路检查就对了 补充一下: Dispenser:指的是粉仓,接收粉筒的粉再给显影仓加粉的那个中间部件 Low Toner Sensor:就是检测有没有粉的传感器(特别留意刮这个传感器的小铁丝有没有问题) Dispense Motor:就是搅粉马达 |
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