Photocopy monitoring system and method for monitoring copiers
First Claim
1. A system for monitoring a paper processing device and reporting to a central station, the paper processing device including an internal diagnosing system for diagnosing malfunctions within the system, a display device for displaying the diagnosed malfunction, the diagnosing system providing an internal diagnostic signal specific to the paper processing device for causing the display device to display the malfunction comprising:
- counter means for counting the number of papers processed by the paper processing device and producing a count signal corresponding to each paper processed;
first control means for receiving the count signal, totalling the count signal and transmitting the total count at at least one of a predetermined time interval and a predetermined count interval and producing a count trigger signal;
interface means for receiving the diagnostic signal without interfering with the operation of the display device, the first control means also receiving the diagnostic signal from the interface means and in response thereto producing a diagnostic trigger signal;
modem means for transmitting the total count signal to the central station upon receipt of said count trigger signal, the modem means also receiving the diagnostic trigger signal and transmitting the diagnostic signal in response thereto to the central station; and
voltage regulator means receiving an AC power input, a power input from the paper processing device and a battery power input, said voltage regulator means providing power to said first control means utilizing said battery power when said voltage regulator means detects an absence of an input of AC power and power from said paper processing device.
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Accused Products
Abstract
A system for monitoring a variable output paper processing device is provided. The monitoring system includes a counter which counts the number of papers processed and provides a count signal for each paper counted. A controller receives the count signals and totals the counts. The controller includes an internal clock as well as an interrupt signal generator. Upon receipt of the count signal, the interrupt generator generates an interrupt signal starting the internal clock. The internal clock has a duration of a predetermined value larger than random noise signals. The controller compares the internal clock signal to the count signal and determines whether a valid count has occurred. The controller includes a CPU and RAM which are coupled by a PAL which isolates the RAM from the CPU when a voltage supplied to the CPU and PAL falls below a predetermined level.
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Citations
11 Claims
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1. A system for monitoring a paper processing device and reporting to a central station, the paper processing device including an internal diagnosing system for diagnosing malfunctions within the system, a display device for displaying the diagnosed malfunction, the diagnosing system providing an internal diagnostic signal specific to the paper processing device for causing the display device to display the malfunction comprising:
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counter means for counting the number of papers processed by the paper processing device and producing a count signal corresponding to each paper processed; first control means for receiving the count signal, totalling the count signal and transmitting the total count at at least one of a predetermined time interval and a predetermined count interval and producing a count trigger signal; interface means for receiving the diagnostic signal without interfering with the operation of the display device, the first control means also receiving the diagnostic signal from the interface means and in response thereto producing a diagnostic trigger signal; modem means for transmitting the total count signal to the central station upon receipt of said count trigger signal, the modem means also receiving the diagnostic trigger signal and transmitting the diagnostic signal in response thereto to the central station; and voltage regulator means receiving an AC power input, a power input from the paper processing device and a battery power input, said voltage regulator means providing power to said first control means utilizing said battery power when said voltage regulator means detects an absence of an input of AC power and power from said paper processing device. - View Dependent Claims (2, 3)
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- 4. A voltage regulator for a system for monitoring a paper processing device and reporting to a central station, said voltage regulator means receiving an AC power input, a power input from the paper processing device and a battery power input, and providing power to said system utilizing said battery power when said voltage regulator means detects an absence of both an input of AC power and power from said paper processing device.
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7. A system for monitoring a paper processing device and reporting to a central station comprising:
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at least one counter means for counting the number of papers processed by the printing device and producing a count signal corresponding to each paper processed; first control means for receiving the count signal, totalling said count signal and transmitting the total count at at least one of a predetermined time interval and at a predetermined count interval and producing a count trigger signal; and interrupt means for generating an interrupt signal in response to said count signal, said first control means generating an internal clock for a predetermined time interval in response to said interrupt signal, said time interval being less than the duration of said count signal and greater than the duration of random noise signals and comparing said internal generated clock to said count signal and determining a count has occurred when said count signal exceeds said internal clock signal. - View Dependent Claims (8, 9, 10)
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11. The system for monitoring a paper processing device and reporting to a central station comprising:
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counter means for counting the number of papers processed by the printing device and producing a count signal corresponding to each paper process; first control means for receiving the count signal, totalling the count signal and transmitting the total count at at least one of a predetermined time interval and a predetermined count interval and producing a count trigger signal; said first control means including a CPU for totalling the count signal, a RAM coupled to said CPU for storing the total count and a PAL coupled between said CPU and said RAM for controlling the addresses at which said RAM is operated upon by said CPU; power source means for providing power at a predetermined voltage level to said PAL and CPU, said PAL preventing access to said RAM by said CPU when said voltage falls below said predetermined level; and modem means for transmitting the total count signal to the central station upon receipt of said count trigger signal.
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Specification