Method for determining a state of processing solution in a printer processor and a printer processor

A method for determining a state of processing solution in a printer processor which exposes a photosensitive material to light emitted from a light source and processes the material with processing solution, the printer processor having a function to correct exposure conditions in response to at least the amount of light from the light source, characteristics of the photosensitive material, and a state of the processing solution by adjusting values of a plurality of parameters for exposure condition correction, comprising the steps of:

• (a) storing a history of change of a value of at least one parameter of the plurality of parameters;
• and
• (b) determining whether or not the state of the processing solution is in a preferable state based on the stored history of change of the value of the at least one parameter of the plurality of parameters, wherein
• the at least one parameter is a predetermined master correction parameter, and
• the printer processor adjusts the values of the parameters of the plurality of parameters corresponding to the amount of light from the light source and the characteristics of the photosensitive material, and
• then adjusts the value of the master correction parameter in response to the change in the processing solution state, and
• later performs the step (a).

A printer processor which performs exposure of a photosensitive material to light emitted from a light source and processing of the photosensitive material with processing solution, and which effects correction of an exposure condition in response to at least one of the amount of light from the light source and characteristics of the photosensitive material, another exposure of the photosensitive material to record a predetermined test image thereon and processing of the photosensitive material on which the predetermined test image has been recorded with the processing solution, and measurement of density of the test image which has been recorded on the processed photosensitive material, the printer processor having a function to adjust a predetermined master correction parameter value for exposure condition correction so that the measured density of the test image is in a predetermined range, comprising:

• history-of-change storing means for storing a history of change of the master correction parameter value;
• and
• processing solution state determining means for determining whether or not the processing solution is in a preferable state based on the history of change of the master correction parameter value stored by the history of change storing means, wherein the processing solution state determining means determines whether or not the processing solution is in the preferable state based on one of a change rate or a change amount of the master correction parameter value adjusted latest relative to the master correction parameter value which was adjusted before the latest adjustment, and on one of a change rate and a change amount of the master correction parameter value adjusted latest relative to one of an average value of a plurality of the master correction parameter values which were adjusted during a predetermined period before the latest adjustment and an average value of the master parameter values which were adjusted before the latest adjustment for a predetermined number of times.

A printer processor which performs exposure of a photosensitive material to light emitted from a light source and processing of the photosensitive material with processing solution, and which effects correction of an exposure condition in response to at least one of the amount of light from the light source and characteristics of the photosensitive material, another exposure of the photosensitive material to record a predetermined test image thereon and processing of the photosensitive material on which the predetermined test image has been recorded with the processing solution, and measurement of density of the test image which has been recorded on the processed photosensitive material, the printer processor having a function to adjust a predetermined master correction parameter value for exposure condition correction so that the measured density of the test image is in a predetermined range, comprising:

• history-of-change storing means for storing a history of change of the master correction parameter value;
• processing solution state determining means for determining whether or not the processing solution is in a preferable state based on the history of change of the master correction parameter value stored by the history of change storing means, and
• prohibition means for prohibiting that the master correction parameter value is adjusted before correction of the exposure condition is effected in response to characteristics of a photosensitive material which has been newly loaded on the printer processor.

A printer processor which performs exposure of a photosensitive material to light emitted from a light source and processing of the photosensitive material with processing solution, and which effects correction of an exposure condition in response to at least one of the amount of light from the light source and characteristics of the photosensitive material, another exposure of the photosensitive material to record a predetermined test image thereon and processing of the photosensitive material on which the predetermined test image has been recorded with the processing solution, and measurement of density of the test image which has been recorded on the processed photosensitive material, the printer processor having a function to adjust a predetermined master correction parameter value for exposure condition correction so that the measured density of the test image is in a predetermined range, comprising:

• history-of-change storing means for storing a history of change of the master correction parameter value;
• and
• processing solution state determining means for determining whether or not the processing solution is in a preferable state based on the history of change of the master correction parameter value stored by the history of change storing means, said printer processor being constructed to correct upon activation thereof, the exposure condition automatically in response to the amount of light, and then adjust the master correction parameter value automatically in response to the change in the state of the processing solution.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state as a plurality of exposure condition correction parameters, said exposure condition correcting means correcting said exposure condition by adjusting values of said plurality of exposure condition correction parameters;
• and a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state, by adjusting values of a plurality of exposure condition correction parameters;
• and
• a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters;
• wherein
• the memory is constructed so that it stores a history of change of the value of the processing solution correction parameter, and
• the printer processor further comprises a processing solution state determining means for determining whether or not the processing solution is in a preferable state based on the history of change of the value of the processing solution correction parameter stored in the memory, wherein
• the processing solution state determining means determines whether or not the processing solution is in the preferable state based on one of a change rate and a change amount of the value of the processing solution correction parameter adjusted latest to the value of the processing solution correction parameter which was adjusted before the latest adjustment, and on one of a change rate and a change amount of the value of the processing solution correction parameter adjusted latest to an average value of a plurality of the values of the processing solution correction parameter which were adjusted during a predetermined period before the latest adjustment and an average value of the values of the processing solution parameter which were adjusted before the latest adjustment for a predetermined number of times.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state, by adjusting values of a plurality of exposure condition correction parameters;
• a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters;
• and
• a prohibition means for prohibiting that the value of the processing solution correction parameter is adjusted before the exposure condition is corrected in response to characteristics of a photosensitive material which has been newly loaded on the printer processor.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state, by adjusting values of a plurality of exposure condition correction parameters;
• and
• a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters, wherein
• the exposure condition is automatically corrected in response to the amount of light detected at the beginning of the operation and then the value of the processing solution correction parameter is automatically adjusted in response to a change in the processing solution state.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least one of:
• the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state, by adjusting values of a plurality of exposure condition correction parameters;
• and
• a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters;
• wherein
• the memory is constructed so that it stores a history of change of the value of the processing solution correction parameter, and
• the printer processor further comprises a processing solution state determining means for determining whether or not the processing solution is in a preferable state based on the history of change of the value of the processing solution correction parameter stored in the memory, wherein
• the processing solution state determining means determines whether or not the processing solution is in the preferable state based on one of a change rate and a change amount of the value of the processing solution correction parameter adjusted latest to the value of the processing solution correction parameter which was adjusted before the latest adjustment, and on one of a change rate and a change amount of the value of the processing solution correction parameter adjusted latest to an average value of a plurality of the values of the processing solution correction parameter which were adjusted during a predetermined period before the latest adjustment and an average value of the values of the processing solution parameter which were adjusted before the latest adjustment for a predetermined number of times.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least one of:
• the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state, by adjusting values of a plurality of exposure condition correction parameters;
• a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters;
• and
• a prohibition means for prohibiting that the value of the processing solution correction parameter is adjusted before the exposure condition is corrected in response to characteristics of a photosensitive material which has been newly loaded on the printer processor.

A printer processor comprising:

• an exposing section for exposing a photosensitive material to light emitted from a light source to record an image thereon;
• a processing solution processing section for processing the photosensitive material on which the image was recorded with processing solution;
• an exposure condition correcting means for correcting an exposure condition in response to at least one of:
• the amount of light from the light source, characteristics of the photosensitive material, and a change in the processing solution state, by adjusting values of a plurality of exposure condition correction parameters;
• and
• a memory for storing a value of the processing solution correction parameter for correcting the exposure condition in response to the change in the processing solution state, as a value of one exposure condition correction parameter of the plurality of exposure condition correction parameters, wherein
• the exposure condition is automatically corrected in response to the amount of light detected at the beginning of the operation and then the value of the processing solution correction parameter is automatically adjusted in response to a change in the processing solution state.