GB2271650B - Image forming apparatus - Google Patents

Image forming apparatus

Info

Publication number
GB2271650B
GB2271650B GB9324285A GB9324285A GB2271650B GB 2271650 B GB2271650 B GB 2271650B GB 9324285 A GB9324285 A GB 9324285A GB 9324285 A GB9324285 A GB 9324285A GB 2271650 B GB2271650 B GB 2271650B
Authority
GB
United Kingdom
Prior art keywords
image forming
forming apparatus
image
forming
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.)
Expired - Lifetime
Application number
GB9324285A
Other versions
GB9324285D0 (en
GB2271650A (en
Inventor
Noboru Sawayama
Yoshihiro Mitekura
Takayuki Maruta
Katsuhiro Aoki
Koji Okabayashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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
Priority claimed from JP2113093A external-priority patent/JP3023139B2/en
Priority claimed from JP02213339A external-priority patent/JP3124540B2/en
Priority claimed from JP21980590A external-priority patent/JP3172170B2/en
Priority claimed from JP03035371A external-priority patent/JP3051470B2/en
Priority claimed from GB9108985A external-priority patent/GB2244350B/en
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB9324285D0 publication Critical patent/GB9324285D0/en
Publication of GB2271650A publication Critical patent/GB2271650A/en
Application granted granted Critical
Publication of GB2271650B publication Critical patent/GB2271650B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch
    • 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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00025—Machine control, e.g. regulating different parts of the machine
    • G03G2215/00029—Image density detection
    • G03G2215/00033—Image density detection on recording member
    • G03G2215/00037—Toner image detection
    • G03G2215/00042—Optical detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
GB9324285A 1990-04-27 1993-11-25 Image forming apparatus Expired - Lifetime GB2271650B (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP2113093A JP3023139B2 (en) 1990-04-27 1990-04-27 Image forming device
JP11309290 1990-04-27
JP02213339A JP3124540B2 (en) 1990-08-10 1990-08-10 Image forming device
JP21981090 1990-08-20
JP21980690 1990-08-20
JP21980590A JP3172170B2 (en) 1990-08-20 1990-08-20 Image forming device
JP21981190 1990-08-20
JP21980990 1990-08-20
JP26801690 1990-10-05
JP30652590 1990-11-13
JP03035371A JP3051470B2 (en) 1990-04-27 1991-02-05 Image forming apparatus and image forming method
GB9108985A GB2244350B (en) 1990-04-27 1991-04-26 Image forming method and apparatus for the same

Publications (3)

Publication Number Publication Date
GB9324285D0 GB9324285D0 (en) 1994-01-12
GB2271650A GB2271650A (en) 1994-04-20
GB2271650B true GB2271650B (en) 1994-08-17

Family

ID=27583067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9324285A Expired - Lifetime GB2271650B (en) 1990-04-27 1993-11-25 Image forming apparatus

Country Status (1)

Country Link
GB (1) GB2271650B (en)

Also Published As

Publication number Publication date
GB9324285D0 (en) 1994-01-12
GB2271650A (en) 1994-04-20

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20110425