发明名称 MULTICOLOR IMAGE TRANSFER METHOD AND APPARATUS
摘要 <p>Color toner images are transferred in registry to a receiving sheet (66) held on a transfer drum (18). To facilitate releasing the sheet with the last image the drum surface is roughened, providing at least 0.002 inches between peaks and valleys (89). To offset difficulties created by such roughening in initial securing of the sheet to the drum, a transfer field is not applied as the leading edge of the sheet leaves the nip. The transfer field is applied after a short portion of the sheet, for example, 0.25 inches has left the nip.</p>
申请公布号 WO1991006897(A1) 申请公布日期 1991.05.16
申请号 US1990006256 申请日期 1990.10.26
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