Replaceable sub-assemblies for electrostatographic reproducing machines
First Claim
1. A printing machine, having operating parameters associated therewith, for producing prints, comprising:
- a controller for controlling the operating parameters;
an operator replaceable sub-assembly adapted to serve as a processing station in the printing machine, said operator replaceable sub-assembly including a memory device, communicating with said controller when said replaceable sub-assembly is coupled with said printing machine, for storing a value which varies as a function of the usage of said replaceable sub-assembly, said controller adjusting a selected one of the operating parameters in accordance with the stored value for maintaining printing quality, wherein said memory device is updated by said controller in response to a predetermined period of sub-assembly usage and the operating parameter is adjusted in response to the predetermined period of sub-assembly usage; and
means, operatively associated with said controller and responsive to the stored value, for determining the level to which the selected one of the operating parameters should be adjusted.
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Accused Products
Abstract
A printing machine, having operating parameters associated therewith, for producing prints is provided. The printing machine includes a controller for controlling the operating parameters and an operator replaceable sub-assembly adapted to serve as a processing station in the printing machine. The operator replaceable sub-assembly includes a memory device, communicating with the controller when the replaceable sub-assembly is coupled with the printing machine, for storing a value which varies as a function of the usage of the replaceable sub-assembly, the controller adjusting a selected one of the operating parameters in accordance with the stored value for maintaining printing quality of the printing machine.
172 Citations
9 Claims
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1. A printing machine, having operating parameters associated therewith, for producing prints, comprising:
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a controller for controlling the operating parameters; an operator replaceable sub-assembly adapted to serve as a processing station in the printing machine, said operator replaceable sub-assembly including a memory device, communicating with said controller when said replaceable sub-assembly is coupled with said printing machine, for storing a value which varies as a function of the usage of said replaceable sub-assembly, said controller adjusting a selected one of the operating parameters in accordance with the stored value for maintaining printing quality, wherein said memory device is updated by said controller in response to a predetermined period of sub-assembly usage and the operating parameter is adjusted in response to the predetermined period of sub-assembly usage; and means, operatively associated with said controller and responsive to the stored value, for determining the level to which the selected one of the operating parameters should be adjusted. - View Dependent Claims (2, 3, 4, 5)
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6. A printing machine, having operating parameters associated therewith, for producing prints, comprising:
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a controller for controlling the operating parameters; and an operator replaceable sub-assembly adapted to serve as a processing station in the printing machine, said operator replaceable sub-assembly including a memory device, communicating with said controller when said replaceable sub-assembly is coupled with said printing machine, for storing a value which varies as a function of the usage of said replaceable sub-assembly, said controller adjusting a selected one of the operating parameters in accordance with the stored value for maintaining printing quality, wherein said operator replaceable sub-assembly includes an imaging member adapted to have a latent image recorded thereon and means for developing the latent image with developer material, and wherein the value represents an image area on which developer material has been deposited by said developing means.
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7. A method of controlling operating parameters of a printing machine which has a controller and produces prints, comprising:
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a) selectively coupling a replaceable sub-assembly, with a memory device, to the printer, wherein the memory device communicates with the controller; b) storing a value, which varies as a function of sub-assembly usage, in the memory device; c) in view of the stored value, determining the level to which a selected one of the operating parameters should be adjusted; d) adjusting the selected one of the operating parameters with the controller in accordance with the determined level of adjustment for maintaining printing quality of the printing machine; e) updating the memory device with the controller after a predetermined period of sub-assembly usage; and f) repeating steps c-e after a predetermined period of sub-assembly usage. - View Dependent Claims (8, 9)
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Specification