JPS5767945A - Picture processor - Google Patents

Picture processor

Info

Publication number
JPS5767945A
JPS5767945A JP55144810A JP14481080A JPS5767945A JP S5767945 A JPS5767945 A JP S5767945A JP 55144810 A JP55144810 A JP 55144810A JP 14481080 A JP14481080 A JP 14481080A JP S5767945 A JPS5767945 A JP S5767945A
Authority
JP
Japan
Prior art keywords
high voltage
primary
displayed
display
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55144810A
Other languages
Japanese (ja)
Other versions
JPH0370224B2 (en
Inventor
Sunao Nagashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP55144810A priority Critical patent/JPS5767945A/en
Publication of JPS5767945A publication Critical patent/JPS5767945A/en
Publication of JPH0370224B2 publication Critical patent/JPH0370224B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To know whether the control is normally carried out for both the primary and secondary high voltage outputs, by simulaneously display both the primary and secondary high voltages at a display means. CONSTITUTION:The value obtained by multiplying the primary and secondary high voltage output arithmetic values stored in random memories M1 and M2 of a CPU41 by a reduction copy magnification ratio 0.7 through an ALU is displayed at a display devide 61. This high voltage primary output is displayed at a display device 61-2 in the form of numerical value 0-9; while the high voltage secondary output is displayed at a display device 61-3 in the form of numerical value 0-9. As a result, both the high voltage primary and secondary outputs can be roughly known at a time. Then the contrast potential, i.e., the difference between the bright part potential and the dark part potential of a drum 11 is calculated and displayed on a display device 61. Thus whether or not the normal control is carried out for boty the high voltage primary and secondary outputs can be known by looking at the contrast potential.
JP55144810A 1980-10-15 1980-10-15 Picture processor Granted JPS5767945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144810A JPS5767945A (en) 1980-10-15 1980-10-15 Picture processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144810A JPS5767945A (en) 1980-10-15 1980-10-15 Picture processor

Publications (2)

Publication Number Publication Date
JPS5767945A true JPS5767945A (en) 1982-04-24
JPH0370224B2 JPH0370224B2 (en) 1991-11-06

Family

ID=15370982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144810A Granted JPS5767945A (en) 1980-10-15 1980-10-15 Picture processor

Country Status (1)

Country Link
JP (1) JPS5767945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61121065A (en) * 1984-11-16 1986-06-09 Mita Ind Co Ltd Method for discriminating abnormal state of copying machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477882A (en) * 1977-12-02 1979-06-21 Canon Kk Control device
JPS5553344A (en) * 1978-10-15 1980-04-18 Canon Inc Image former

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477882A (en) * 1977-12-02 1979-06-21 Canon Kk Control device
JPS5553344A (en) * 1978-10-15 1980-04-18 Canon Inc Image former

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61121065A (en) * 1984-11-16 1986-06-09 Mita Ind Co Ltd Method for discriminating abnormal state of copying machine

Also Published As

Publication number Publication date
JPH0370224B2 (en) 1991-11-06

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