谢谢版主的回复
还有一个疑问就是同一个文件用HP1300普通激打打印和C500打印,C500打出来会比HP打出来的字粗.
小的或粗点的字会糊掉, HP的却很清晰
打印文件是同一个,内容是K100的文字

我们的c6500正在调试,看到此帖,打了一个类似的样张,果然效果要好很多,基本是看不出来的

这个肯定是软件问题了，RIP不一样经常打印出来的文字粗细不一样的，没有比较不明显，一比较就看出来了。另外，这个问题跟你文件的格式、打印PS选择PPD的不同，转换PDF的设置都有关系的。

版主的这个看起来像是幻灯片。

不过确实有一本C500的维修手册，针对各个出错代码的，在下一直在找，不过找到一本英文的，是技术支持人员用的。贴一个常用的SC29-07,08,09,10的出错维修过程

Solution ID TAUS0640730EN00 Solution Usage 20
Description
SC29-07, SC29-08, SC29-09, SC29-10 error codes.
Solution
PROBABLE CAUSES:
1. Use the SC29-xx troubleshooting flow chart prior to attempting the other resolutions below.
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.

再发一个，为什么双面打印速度变慢？

Solution ID TAUS0640735EN00 Solution Usage 0
Description
Print speed is slower in the 2-sided copy mode.
Solution
CAUSE: Key Operator mode Memory Switch 42 (Side 2 Drum Clock Adjust) is enabled (ON).
SOLUTION: Set Memory Switch 42 to OFF.
Note: With this switch set to OFF, the print speed will increase but the Side 2 Drum Clock Adjustment is disabled.
SPECIAL NOTE: This solution was provided by Konica Business Technologies Corporation in Japan.