Process and device for transferring toner
AssigneeNexPress Solutions LLC
InventorsGerhard Bartscher, Udo Dräger
Life of this patent
Estimating the term…
Abstract
Toner material is transferred from a locally charged imaging member to a printed material with a d.c. voltage applied onto an a.c. voltage having voltage peaks in the range of 6-8 kV with a duration of 0.5-1.5 μsec combined with it.
Claims4
Process for transferring toner (8) from an imaging member (10) or photoconductor onto printed material (5) by applying a d.c. voltage in the area between said imaging member (10) and said printed material (5), and combining with said d.c. voltage, at least periodically, an a.c. voltage having voltage peaks with an amplitude in the range of 6-8 kV and a duration in the range of 0.5-1.5 μsec.
Device (30) for transferring toner (8) from an imaging member (10) or photoconductor onto printed material (5) comprising:
- a source for a d.c. voltage in the area between the imaging member (10) and the printed material (5), and an additional source for an a.c. voltage provided, at least periodically, between said printed material and a back-up device, said a.c. voltage having voltage peaks with an amplitude in the range of 6-8 kV and a duration in the range of 0.5-1.5 μsec.
Dependencies are inferred from the claim text.