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只看该作者 #17 | |||
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正式会员
等级: 六袋长老
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cause: Dmax control /k resulted in an abnormality estimated parts : printer control board, developing unit ,gamma sensor active solutions use the flow chart Subject: SC29-07, SC29-08, SC29-09, SC29-10 error codes. Description: SC29-07, SC29-08, SC29-09, SC29-10 error codes. Solution: PROBABLE CAUSES: 2. Setup adjustment performed incorrectly. Recall the process adjustment standard data and perform the gamma auto adjustment after insuring that the drum cartridges and charge coronas are properly seated. To recall the process adjustment standard data, perform the following: a. Power on the copier while pressing 3 and 6 on the control panel. b. Select PROCESS ADJUSTMENT followed by RECALL STANDARD DATA. c. Select YES and then perform the normal setup. 3. The transfer roller behind the transfer belt has dislodged from the power block assembly. Check the corresponding transfer roller (p/n 65和谐26120R) for the corresponding color code that might have dislodged from the power block assemblies (p/n 65和谐-2810, p/n 65和谐-2820). Also, check the continuity of the blocks. 4. Excessive yellow due to high yellow charge grid (shown on Adjustment List as Grid Y 1/1(V) setting = 1015), due to failed HV-1. Replace HV-1 (p/n 65和谐84010). 5. Bias contact on the rear of the developing unit is malformed resulting in insufficient contact with the bias spring located on inside of the machine on the rear side. Reform the bias contact so that it contacts the spring on the inside of the machine. 6. Faulty Gamma Sensor. Replace the Sensor Unit Assembly (Image Color Registration Unit) (p/n 65和谐-2950). 7. Worn developer. Replace developer. 8. The toner spew mylar located just below the magnet roller of the developing unit is misaligned resulting in the developer on the magnet roller not developing correctly on the sleeve resulting in PS11 (Gamma sensor) not reading the patch correctly. Remove the developing unit, then loosen the 3 screws located on the toner spew mylar guide allowing the black plastic plate which the mylar is mounted on to move down. Retighten the 3 screws and reinstall the developing unit. WARNING: Do not touch the screws for the doc blade because it is factory set. |
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只看该作者 #25 | |||
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荣誉版主
等级: 七袋长老
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引用:
我现在知道你说的什么意思了,但我还是保留我的观点,50检测出来的数值没有太大参考价值,一般判断显影仓碳粉、载体的多少我们还是通过L检测来判断,因为50检测的值只是相对值,表示相对标准值是多还是少,L检测的值才是具体值。虽然官方是不允许多次执行L检测的,但实际使用中,通过执行L检测来调整显影仓T/C比,对解决漏载体、白斑等问题很有效果。 文档写的低于180载体就要换掉,我觉得写的有问题吧,新换载体这个值都是低于180的吧,哪位最近新换了载体,做完L检测后看下这个值,是不是低于180的。我印象里面一般正常状态值都是低于180的。 此帖于 2009-06-16 13:05 被 moonyboy 编辑. |
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右列会员因为此帖价值甚高向 moonyboy 表示感谢: |
湖南万马 (2009-09-01)
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只看该作者 #26 | ||
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正式会员
等级: 四袋长老
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引用:
另外,这个值偏离正常值很多,印的效果才上来,能说明什么? 传感器故障吗? 此帖于 2009-06-16 16:35 被 bjdr 编辑. |
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