摘要:
A printing apparatus or printing system that uses multiple print engines to form an image on a substrate. The printing apparatus or printing system may be a surface printing system or a reverse printing system. Each of the multiple print engines has at least one color station. The color stations are arranged in the print engines and between the multiple print engines based on whether the printing system is a surface printing system or a reverse printing system to control the order in which colorant is formed on a substrate. Multiple print engines allow for, among other things, a greater color gamut and therefore assists in expansion of the standard color gamut.
摘要:
An apparatus develops an electrostatic latent image on a charge-retentive surface. A donor roll is selectably rotatable in a process direction and in a reverse direction relative to the process direction. A toner mover loads toner particles onto a portion of the surface of the donor roll. A metering blade is disposed downstream of the toner mover in the process direction. A seal is disposed upstream of the toner mover in the process direction, and is adapted to remove at least approximately half of the undeveloped toner from the donor roll.
摘要:
An apparatus which develops a latent image recorded on an image receiving member with marking particles. A chamber in a developer housing stores a supply of charged marking particles. The marking particles having a charge distribution. A donor roll is positioned in the chamber of the housing to transport marking particles closely adjacent to the latent image to develop the latent image. A rotating, elongated member moves the marking particles. An electrical bias is applied between the elongated member and the donor roll to selectively attract marking particles from the elongated member to the donor roll. The marking particles attracted to the donor roller have a charge distribution with a selected range. The range of the charge distribution of the marking particles attracted to the donor roller is less than the range of the charge distribution of the marking particles being moved by the elongated member.
摘要:
Multi-stage fixing systems for fixing toner to a substrate, printing apparatuses and methods of fixing marking material to a substrate are provided. An exemplary embodiment of the multi-stage fixing systems includes a softening device for softening toner applied to a substrate by a marking device; and a fixing device for fixing the softened toner to the substrate. The fixing device includes a first fixing member including a first surface; a first thermal energy source for actively heating the first surface; and a second fixing member including a second surface, the first surface and the second surface form a fixing nip at which the substrate with softened toner is received. The first fixing member and the second fixing member are operable to apply heat and pressure to the substrate and softened toner received at the fixing nip to fix the toner to the substrate.
摘要:
Fixing systems, printing apparatuses and methods for fixing marking material to a substrate are provided. An exemplary embodiment of the fixing systems includes a pre-heating device for pre-heating a substrate and marking material disposed on a surface of the substrate; a fixing device disposed downstream from the pre-heating device, the fixing device including fixing members which oppose each other and form a fixing nip; and a first thermal energy source for heating at least one of the fixing members; wherein the fixing members apply pressure and thermal energy to the pre-heated substrate and marking material at the fixing nip to fix the toner to the substrate; and a conditioning device positioned (a) upstream from the pre-heating device, (b) between the pre-heating device and the fixing device, or (c) downstream from the fixing device. The conditioning device includes conditioning members which oppose each other and form a conditioning nip. The conditioning device does not include a thermal energy source that actively heats the conditioning members.
摘要:
A printing apparatus or printing system that uses multiple print engines to form an image on a substrate. The printing apparatus or printing system may be a surface printing system or a reverse printing system. Each of the multiple print engines has at least one color station. The color stations are arranged in the print engines and between the multiple print engines based on whether the printing system is a surface printing system or a reverse printing system to control the order in which colorant is formed on a substrate. Multiple print engines allow for, among other things, a greater color gamut and therefore assists in expansion of the standard color gamut.
摘要:
Fixing systems, printing apparatuses and methods for fixing marking material to a substrate are provided. An exemplary embodiment of the fixing systems includes a pre-heating device for pre-heating a substrate and marking material disposed on a surface of the substrate; a fixing device disposed downstream from the pre-heating device, the fixing device including fixing members which oppose each other and form a fixing nip; and a first thermal energy source for heating at least one of the fixing members; wherein the fixing members apply pressure and thermal energy to the pre-heated substrate and marking material at the fixing nip to fix the toner to the substrate; and a conditioning device positioned (a) upstream from the pre-heating device, (b) between the pre-heating device and the fixing device, or (c) downstream from the fixing device. The conditioning device includes conditioning members which oppose each other and form a conditioning nip. The conditioning device does not include a thermal energy source that actively heats the conditioning members.
摘要:
Multi-stage fixing systems for fixing toner to a substrate, printing apparatuses and methods of fixing marking material to a substrate are provided. An exemplary embodiment of the multi-stage fixing systems includes a softening device for softening toner applied to a substrate by a marking device; and a fixing device for fixing the softened toner to the substrate. The fixing device includes a first fixing member including a first surface; a first thermal energy source for actively heating the first surface; and a second fixing member including a second surface, the first surface and the second surface form a fixing nip at which the substrate with softened toner is received. The first fixing member and the second fixing member are operable to apply heat and pressure to the substrate and softened toner received at the fixing nip to fix the toner to the substrate.
摘要:
An apparatus develops an electrostatic latent image on a charge-retentive surface. A donor roll is selectably rotatable in a process direction and in a reverse direction relative to the process direction. A toner mover loads toner particles onto a portion of the surface of the donor roll. A metering blade is disposed downstream of the toner mover in the process direction. A seal is disposed upstream of the toner mover in the process direction, and is adapted to remove at least approximately half of the undeveloped toner from the donor roll.
摘要:
A fixing device includes a first fixing member a second fixing member that are movable to engage and disengage a fixing nip defined by the first and second fixing member. The fixing nip is disengaged to accommodate entry and exit of a cut sheet, and engaged to accommodate warm-pressure fixing a marking material image to the cut sheet.