摘要:
Systems and methods of determining a predicted usable life of components, such as a photoreceptor, associated with an imaging device. The systems and methods include a power source configured to increase an electric field across the photoreceptor. A sensor or array is configured to detect charge deficient spots (CDS) in a charge transport layer (CTL) of the photoreceptor as a result of increasing the electric field. The systems and methods are configured to determine the predicted useable life of the photoreceptor based on the detected CDS. The systems and methods are further configured to output a report of the estimation. The estimation is conducted at fixed or variable intervals throughout the life of the photoreceptor and/or imaging device.
摘要:
Systems and methods of determining a predicted usable life of components, such as a photoreceptor, associated with an imaging device. The systems and methods include a power source configured to increase an electric field across the photoreceptor. A sensor or array is configured to detect charge deficient spots (CDS) in a charge transport layer (CTL) of the photoreceptor as a result of increasing the electric field. The systems and methods are configured to determine the predicted useable life of the photoreceptor based on the detected CDS. The systems and methods are further configured to output a report of the estimation. The estimation is conducted at fixed or variable intervals throughout the life of the photoreceptor and/or imaging device.
摘要:
A system and method by which, in photoreceptor devices that use non-contact charging, an impending failure of a photoreceptor can be accurately estimated based on a determined thickness of a charge transport layer in the photoreceptor. The systems and methods may include measuring current delivered to the photoreceptor charge transport layer, measuring voltage of the photoreceptor transport layer, determining a slope of the charge device, determining the thickness of the charge transport layer based on at least one of the measured current value, voltage value, or charge device slope, and determining a photoreceptor replacement interval based on the determined thickness.
摘要:
Systems and methods of diagnosing a photoreceptor associated with an imaging device. The photoreceptor is configured to enter into a diagnostic cycle to complete a set number of cycles. A sensor or array is configured to a scan a component associated with the imaging device during each of the set of cycles to establish defect data. The defect data is analyzed to filter one or more charge deficient spots (CDS) from background noise in the defect data. The systems and methods determine whether the photoreceptor needs replacement based on the determined one or more CDS. The systems and methods are further configured to output a report of the determination. The determination is conducted at fixed or variable intervals throughout the life of the photoreceptor and/or imaging device.
摘要:
A photoreceptor charge transport layer thickness determining apparatus for a photoreceptor including a scorotron charge device having coronode wires and a scorotron grid positioned between the corona wires and the photoreceptor charge transport layer, the scorotron charge device being configured to charge the photoreceptor layer using corona discharge to generate ions directed to a surface of the photoreceptor charge transport layer. A first current measuring device measures a current supplied to the coronode wires and outputs a first current value, a second current measuring device measures a current being delivered to the scorotron grid and outputs a second current value, and a processor receives the first and second current values and determines a current delivered to the photoreceptor charge transport layer by subtracting the second current value from the first current value, and determines a thickness of the photoreceptor charge transport layer using the current value.
摘要:
A photoreceptor charge transport layer thickness determining apparatus for a photoreceptor including a scorotron charge device having coronode wires and a scorotron grid positioned between the corona wires and the photoreceptor charge transport layer, the scorotron charge device being configured to charge the photoreceptor layer using corona discharge to generate ions directed to a surface of the photoreceptor charge transport layer. A first current measuring device measures a current supplied to the coronode wires and outputs a first current value, a second current measuring device measures a current being delivered to the scorotron grid and outputs a second current value, and a processor receives the first and second current values and determines a current delivered to the photoreceptor charge transport layer by subtracting the second current value from the first current value, and determines a thickness of the photoreceptor charge transport layer using the current value.
摘要:
An apparatus and method that cleans a photoreceptor in a printing apparatus is disclosed. The method can include setting a voltage bias of an electrostatic cleaning brush in a printing apparatus to a first voltage bias. The method can include generating an image on media using a photoreceptor. The method can include cleaning the photoreceptor using the electrostatic cleaning brush operating at the first voltage bias. The method can include measuring operating conditions of the printing apparatus to determine an expected film accumulation rate on the photoreceptor. The method can include adjusting the voltage bias on the electrostatic cleaning brush to a second voltage bias based on the measured operating conditions.
摘要:
According to aspects of the embodiments, there is provided an adaptive blade lubrication apparatus that includes a lubricant unit to place a lubrication stripe of lubricating material on a portion of a main surface; a cleaning blade that engages the main surface to remove excess toner thereon; and a controller configured to control the location of each lubrication stripe of lubricating material, wherein the controller places the lubricating material based on at least one of application frequency, blade lubrication state, blade engagement with the main surface. By varying the location of the lubrication stripe, the cleaning blade is better lubricated over the entire surface of the photoreceptor with the same or less lubricant than used in single location lubrication. Blade life and reliability are improved with more effective lubrication of the blade.
摘要:
Charging devices, electrostatic imaging devices, and methods generate a charging waveform having a DC bias component and an AC component for charging the imaging surface of a charge retentive member, the AC component having a substantially squarewave waveform.
摘要:
A method and apparatus for predicting blade life in an image production device is disclosed. The method may include retrieving a number of print starts, a number of print cycles, a wear rate for print starts, and a wear rate for print cycles from a memory, calculating wear of a cleaning blade based on the number of print starts, the number of print cycles, the wear rate for print starts, and the wear rate for print cycles, wherein the wear rate for print starts and the wear rate for print cycles are weighed differently, determining if the calculated wear of the cleaning blade exceeds a predetermined threshold, wherein if it is determined that the calculated wear of the cleaning blade exceeds a predetermined threshold, sending a notification that the cleaning blade needs to be replaced.