Ricoh M156, Обучение по обслуживанию

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59
Rm-MF1/Rm-P1 Training
Slide 59
Image Transfer Current Timing

There are two transfer current levels: low and high.

Low level: Before image transfer starts, the PSU supplies
+10uA to the transfer roller to prevent positively charged
toner from sticking to the drum.

High level: During image transfer, the PSU supplies high
current to the transfer roller to attract toner to the paper.

When the trailing edge of the paper has passed the transfer
roller, the PSU stops supplying transfer current.

If the machine is printing more pages, the PSU supplies low
level current.

You can adjust these levels, but when increasing the
transfer current level, use caution:

Increasing the transfer current level may produce ghost
images.

Increasing the transfer current level might damage the
drum.
No additional notes