Basically I arrived to a machine th

Basically I arrived to a machine that would not come to ready and after 5 min or so would code SC670. After pulling the rear covers and reseating all the connectors I concluded I had lost power to the BICU, IOB, and PFB. The controller would turn on but none of the other boards would receive power. All fuses on the AC power board tested good. Per Ricoh tech support hotline we opened all covers and rebooted the machine, It came to ready. After closing the covers one by one I found the machine would code again after closing the main drawer.After checking all the wires I found the thermistor wire pinched on the fuser causing a short when the drawer was closed. I rerouted and everything is working great.Just wanted to pass along my findings for everyone.Thanks for the heads up on this one Mitch. My SC670 turned out to be a faulty AC Drive Board. The field techs spent a lot of time swapping controller , IOB, IPU etc following the theory that one board wasn't talking to another but got nowhere. Dragged the box back here to the workshop and I did some reading first and came up with your post which led me to check the power supply. Yep, one of the 5v rails was dead so some of the boards weren't communicating as they were never being turned on. Half an hour with the multimeter found that the AC Drive wasn't fully powering up the PSU ECO and PSU FW.The trick to this game is to read everything you can first but to start fault finding with an open mind. Be prepared to admit that you've gone down a blind ally and go back to square one and start again. Too often techs get one fixed idea in their head and spend hours even days trying to prove wilder and wilder theory's. One again thanks for pointing me in the right direction.I had a machine that was throwing SC670 on startup. A ribbon cable and multiple boards later the SC code still existed. The problem was narrowed down to connector CN203 on the Imaging IOB board, then further narrowed to the "ID Chip" PCB:TCB (Yellow). The PCB:TCB was swapped with another color (Cyan) but the problem remained with (Yellow). After ruling out a pinched/shorted wiring harness, I remembered there is small "chip" on the toner bottle. So we finally removed the toner bottle (Yellow) and the problem went away entirely. Put the bottle back in and it the SC670 came back. Swapped the bottle with a good one and problem solved. There happened to be some sort of defective "chip" on this particular toner bottle. Hope no one ever has this problem, but if you do maybe this will help.

Basically I arrived to a machine that would not come to ready and after 5 min or so would code SC670. After pulling the rear covers and reseating all the connectors I concluded I had lost power to the BICU, IOB, and PFB. The controller would turn on but none of the other boards would receive power. All fuses on the AC power board tested good. Per Ricoh tech support hotline we opened all covers and rebooted the machine, It came to ready. After closing the covers one by one I found the machine would code again after closing the main drawer.After checking all the wires I found the thermistor wire pinched on the fuser causing a short when the drawer was closed. I rerouted and everything is working great.Just wanted to pass along my findings for everyone.Thanks for the heads up on this one Mitch. My SC670 turned out to be a faulty AC Drive Board. The field techs spent a lot of time swapping controller , IOB, IPU etc following the theory that one board wasn't talking to another but got nowhere. Dragged the box back here to the workshop and I did some reading first and came up with your post which led me to check the power supply. Yep, one of the 5v rails was dead so some of the boards weren't communicating as they were never being turned on. Half an hour with the multimeter found that the AC Drive wasn't fully powering up the PSU ECO and PSU FW.The trick to this game is to read everything you can first but to start fault finding with an open mind. Be prepared to admit that you've gone down a blind ally and go back to square one and start again. Too often techs get one fixed idea in their head and spend hours even days trying to prove wilder and wilder theory's. One again thanks for pointing me in the right direction.I had a machine that was throwing SC670 on startup. A ribbon cable and multiple boards later the SC code still existed. The problem was narrowed down to connector CN203 on the Imaging IOB board, then further narrowed to the "ID Chip" PCB:TCB (Yellow). The PCB:TCB was swapped with another color (Cyan) but the problem remained with (Yellow). After ruling out a pinched/shorted wiring harness, I remembered there is small "chip" on the toner bottle. So we finally removed the toner bottle (Yellow) and the problem went away entirely. Put the bottle back in and it the SC670 came back. Swapped the bottle with a good one and problem solved. There happened to be some sort of defective "chip" on this particular toner bottle. Hope no one ever has this problem, but if you do maybe this will help.

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结果 (简体中文) 1: [复制]

复制成功！

基本上，我到达一台无法使用的机器，大约5分钟后代码SC670。拉下后盖并重新固定所有连接器后，我得出结论，我已经失去了BICU，IOB和PFB的电源。控制器将打开，但其他所有板均不通电。交流电源板上的所有保险丝均测试良好。根据理光技术支持热线，我们打开了所有机盖并重新启动了机器，一切就绪。一一关上盖子后，我发现机器在关上主抽屉后会再次编码。 检查完所有电线后，我发现热敏电阻的电线被夹在定影器上，导致抽屉关闭时短路。我改行了，一切正常。 只是想将我的发现传达给所有人。 感谢您对这一米奇的注意。我的SC670原来是交流驱动板有故障。现场技术人员花了很多时间来交换控制器，IOB，IPU等，原因是一个电路板不与另一个电路板交谈，但是却无济于事。把盒子拖回车间去了，我先读了几句话，然后拿出你的帖子，使我检查了电源。是的，5v滑轨之一已死，因此某些板无法通信，因为它们从未被打开。用万用表半小时后，发现交流变频器未完全为PSU ECO和PSU FW供电。 该游戏的诀窍是首先阅读所有内容，然后以开放的态度开始发现错误。准备承认您已经失明了一个盟友，回到方格并重新开始。技术人员经常会想到一个固定的主意，并花费数小时甚至数天来证明越来越荒谬的理论。 再次感谢您为我指明了正确的方向。 我有一台机器在启动时抛出了SC670。带状电缆和多个板卡之后，SC代码仍然存在。问题被缩小到成像IOB板上的连接器CN203，然后进一步缩小为“ ID芯片” PCB：TCB（黄色）。将PCB：TCB换成另一种颜色（青色），但问题仍然存在（黄色）。排除线束被夹/短路后，我记得碳粉瓶上有小的“碎片”。因此，我们最终卸下了墨粉瓶（黄色），问题完全消失了。放回瓶子，SC670回来了。用一个好瓶子交换瓶子，问题解决了。在此特定的碳粉瓶上碰巧有某种有缺陷的“碎片”。希望没有人遇到这个问题，但是如果您这样做，可能会有所帮助。

正在翻译中..

结果 (简体中文) 2:[复制]

复制成功！

基本上，我到了一台机器，不会来准备， 5 分钟左右后，将代码 SC670 。在拉拉后盖并重新安装所有连接器后，我得出结论，我已失去电源到 BICU、IOB 和 PFB。控制器将打开，但其他主板不会通电。交流电源板上的所有保险丝均经过良好测试。根据理光技术支持热线，我们打开所有封面，重新启动机器，它准备好了。一个个地合上盖子后，我发现机器在关闭主抽屉后会再次编码。 检查所有电线后，我发现热敏电阻线被挤压在保险丝上，导致抽屉关闭时短路。我改道了，一切都很成功。 只是想为大家传递我的发现 谢谢你对这个的提醒，米奇。我的 SC670 原来是有故障的交流驱动板。现场技术人员花了很多时间交换控制器，IOB，IPU等理论，一个板不说话，但一无所获。把盒子拖回车间，我先读了一些书，想出了你的帖子，让我检查电源。是的，其中一个 5v 导轨死了，所以一些板没有通信，因为他们从来没有打开。半小时的万用表发现， Ac 驱动器没有完全通电的 Psu Eco 和 Psu Fw 。 这个游戏的诀窍是先阅读一切你可以，但开始错误发现与开放的心态。准备好承认你已经失明了，回到原点，重新开始。很多时候，技术人员头脑中有一个固定的想法，甚至花费数小时甚至数天试图证明更狂野和狂野的理论。 再次感谢指我正确的方向。 我有一台在启动时扔 Sc670 的机器。带状电缆和多个板后，SC 代码仍然存在。问题缩小到成像 IOB 板上的连接器 CN203，然后进一步缩小到"ID 芯片"PCB：TCB（黄色）。PCB：TCB 已换用另一种颜色（青色），但问题仍然存在（黄色）。排除了捏/短路线束后，我记得碳粉瓶上有小"芯片"。因此，我们终于取出了碳粉瓶（黄色），问题完全消失了。把瓶子放回去， SC670 又回来了。把瓶子换成了好瓶子，问题解决了。这个碳粉瓶上碰巧有某种有缺陷的"芯片"。希望从来没有人有这个问题，但如果你这样做，也许这将有助于。

正在翻译中..

结果 (简体中文) 3:[复制]

复制成功！

基本上，我来到一台机器前，它还没有准备好，大约5分钟后，代码为SC670。在拉动后盖和重新拔插所有的连接器后，我得出结论：我失去了BICU、IOB和PFB的电源。控制器会打开，但其他板都不会通电。交流电源板上的所有保险丝均测试良好。根据理光技术支持热线，我们打开所有盖子并重新启动机器，它就准备好了。一个接一个地关上盖子后，我发现机器在关上主抽屉后会重新编码。 检查完所有的电线后，我发现热敏电阻线夹在定影器上，导致抽屉关闭时短路。我改了路线，一切都很好。 只是想把我的发现告诉大家。 谢谢你的提醒，米奇。我的SC670原来是一个有故障的交流驱动板。现场技术人员花了大量时间交换控制器、IOB、IPU等，因为他们认为一个董事会不与另一个董事会对话，但却一无所获。把盒子拖回到车间，我先看了看，然后写了你的帖子，让我去检查电源。是的，其中一个5v的轨道是死的，所以一些电路板无法通信，因为它们从来没有被打开过。使用万用表半小时后发现交流驱动器没有完全接通PSU ECO和PSU FW。 这个游戏的诀窍是先阅读所有你能读的东西，但要以开放的心态开始寻找错误。准备好承认你已经失去了一个盲目的盟友，回到原点，重新开始。太多时候，技术人员脑子里有一个固定的想法，花上几个小时甚至几天的时间来证明越来越荒诞的理论 再次感谢你给我指出了正确的方向。 我有一台启动时抛出SC670的机器。一条带状电缆和多块电路板后来SC代码仍然存在。问题被缩小到成像IOB板上的连接器CN203，然后进一步缩小到“ID芯片”印刷电路板：TCB（黄色）。这个PCB:TCB是换成了另一种颜色（青色），但问题仍然存在（黄色）。在排除了线束挤压/短路的可能性后，我想起碳粉瓶上有一个小“芯片”。所以我们终于把墨粉瓶（黄色）取下，问题就完全解决了。把瓶子放回去，SC670就回来了。换了一个好的瓶子，问题就解决了。这只碳粉瓶上碰巧有某种缺陷的“芯片”。希望没有人会有这个问题，但如果你这样做也许会有帮助。

正在翻译中..

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