发明名称 |
Method for adjusting transfer voltage controls based on environmental conditions to improve print quality in a direct transfer image forming device |
摘要 |
The present application is directed to methods of controlling the transfer voltage in a transfer nip formed between the photoconductive member and the transfer member. The methods offset the effects of large transfer current spikes caused when a media sheet enters and exits the transfer nip and account for temperature and humidity operating parameters using wet-bulb temperature measurements to adjust the transfer voltage. The control may include either ramping up or ramping down the transfer voltage. The ramped transfer voltage may include a series of alternating positive and negative steps that generally trend to ramp up or down. The size of the steps may further be adjusted to provide a smooth transition.
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申请公布号 |
US8036547(B2) |
申请公布日期 |
2011.10.11 |
申请号 |
US20080240495 |
申请日期 |
2008.09.29 |
申请人 |
LEXMARK INTERNATIONAL, INC. |
发明人 |
BOOTH ROBERT REED;BROCKMAN RYAN DAVID;EMBRY KERRY LELAND;ETTER PAUL WESLEY;MARIN CLAUDIA ALEXANDRA;RIGGS TRAVIS ALAN |
分类号 |
G03G15/16 |
主分类号 |
G03G15/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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