Clutch control developer aging or damaged ; replace the clutch .

Developer dislocation or drive gear damage ; reinstall or replace the drive gear in place .

Drum installed in place ; reinstalled.

(C ) , copy the image from time to time

Cause and Remedy :

The reason is that the charge transfer electrode or a connection to the high voltage transformer or high voltage transformer itself is damaged .

Remedy:

Check the back cover can be opened when the machine , remove the electrode socket. After copying the start button is pressed , the socket with a metal part of the electrode touching the metal frame machines , such as the discovery discharge lights sign that the electrode is good. If there is no discharge ignition, the high-voltage transformer output is bad, needs to be replaced . If you have two electrodes discharge outlet sparking phenomenon, indicating a high voltage transformer , no problem , but a bad connection electrode and the socket , or the electrodes themselves there is leakage , poor contact phenomenon, should be repaired .

( Four ) , copy after copy appears bottom ash

On the copy depth ranging from bottom ash , electrostatic copier is a common phenomenon , but also a difficult problem to solve , the presence or absence of a copy of one of the bottom ash is to identify the presence of an important indicator of good or bad quality .

Cause and Remedy :

1 . Underexposed reasons, including exposure lamp aging , illumination fall ; Light bottle open too small , a small amount of exposure . Adjust the exposure voltage , light exposure slit lamp or replacement ;

2 . Original contrast is too small ;

3 . Copy paper damp ;

4 . Developing bias is too low or no developing bias ; developing bias adjustment , maintenance developing bias circuit .

5. Developer in a small proportion of the carrier , the high proportion of toner , resulting in uniform bottom ash , but more concentrated . The reason is that too much toner is free carrier absorption is difficult . This time to re-adjust the ratio of carrier and toner .

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