JPS58181060A - Electrophotographic apparatus - Google Patents

Electrophotographic apparatus

Info

Publication number
JPS58181060A
JPS58181060A JP57064924A JP6492482A JPS58181060A JP S58181060 A JPS58181060 A JP S58181060A JP 57064924 A JP57064924 A JP 57064924A JP 6492482 A JP6492482 A JP 6492482A JP S58181060 A JPS58181060 A JP S58181060A
Authority
JP
Japan
Prior art keywords
toner
area
original
size
max
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.)
Pending
Application number
JP57064924A
Other languages
Japanese (ja)
Inventor
Toshiyuki Asakawa
Tadayuki Tsuda
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 JP57064924A priority Critical patent/JPS58181060A/en
Publication of JPS58181060A publication Critical patent/JPS58181060A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/60Apparatus which relate to the handling of originals
    • G03G15/605Holders for originals or exposure platens

Abstract

PURPOSE:To attach a toner also to an area other than an oridinal exposure area, and to render the amt. of toner to be used constant, by providing a colored face near an original placing area. CONSTITUTION:In an electrophotographic copying machine capable of copying an original of size up to size B4 at the max, most of the copy size to be used is A4. An area corresponding to the difference between B4 and A4 becomes a white area not causing a latent image on a photosensitive drum, so no toner transfers from a developing roll to the drum. Such an unbalanced consumption of the toner causes filming of the toner and deficient density of a copy. In order to prevent such trouble, colored parts 22, 23, 26 are provided on the outside parts of the max. original size area on an original placing glass 6 or on an original pressing plate 25, and toner consumption is made constant.
JP57064924A 1982-04-19 1982-04-19 Electrophotographic apparatus Pending JPS58181060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57064924A JPS58181060A (en) 1982-04-19 1982-04-19 Electrophotographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57064924A JPS58181060A (en) 1982-04-19 1982-04-19 Electrophotographic apparatus

Publications (1)

Publication Number Publication Date
JPS58181060A true JPS58181060A (en) 1983-10-22

Family

ID=13272071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57064924A Pending JPS58181060A (en) 1982-04-19 1982-04-19 Electrophotographic apparatus

Country Status (1)

Country Link
JP (1) JPS58181060A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0552861U (en) * 1991-12-25 1993-07-13 カシオ電子工業株式会社 Image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0552861U (en) * 1991-12-25 1993-07-13 カシオ電子工業株式会社 Image forming device

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