Transfer Belt Unit; Transfer Belt Bias - Ricoh A172 Service Manual

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7. TRANSFER BELT UNIT

Transfer Belt Bias (Face Side: Normal Humidity)

Transfer Belt Bias Depending on Humidity Range (1C Mode: Face Side)

This machine changes the transfer belt bias voltage for every mode and

every copy cycle.

For 1C copy mode, which is more influenced by environmental conditions,

the transfer belt bias output is divided into five ranges by four threshold

values (as mentioned in the table above) and is determined by the output of

the humidity sensor. Only three different bias settings are present as the

factory setting for each environment.

The transfer belt bias voltage data can be monitored in the SP Adjustment

Mode P-5 and 6. These data should not be changed. For more details, see

the SP Mode Section.

Humidity (g/m