JPH04319971A - Voltage control method in printer and device therefor - Google Patents

Voltage control method in printer and device therefor

Info

Publication number
JPH04319971A
JPH04319971A JP8804191A JP8804191A JPH04319971A JP H04319971 A JPH04319971 A JP H04319971A JP 8804191 A JP8804191 A JP 8804191A JP 8804191 A JP8804191 A JP 8804191A JP H04319971 A JPH04319971 A JP H04319971A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
development bias
density
variable
quantity
state
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
JP8804191A
Inventor
Hiroyoshi Tsuzuki
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

Links

Abstract

PURPOSE: To automatically change a development bias amount, depending upon the environment wherein a device is placed, and enable recording density to be optimized.
CONSTITUTION: The density of the environment where a device is installed, is entered through an environmental density detecting section 4, and the minimum value of document density obtained from a document density detecting section 5 is entered. The entered data are used as the quantity of state. Also, a development bias amount controlled by a development bias control section 8 is used as a manipulated variable. According to a rule to qualitatively establish a relationship between the variable and the quantity of state, an applicable manipulated variable is inferred on the basis of the extent of a fuzzy group where the detected quantity of state belongs. The device operates to regulate a development bias amount, depending upon the variable inferred as mentioned.
COPYRIGHT: (C)1992,JPO&Japio
JP8804191A 1991-04-19 1991-04-19 Voltage control method in printer and device therefor Pending JPH04319971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8804191A JPH04319971A (en) 1991-04-19 1991-04-19 Voltage control method in printer and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8804191A JPH04319971A (en) 1991-04-19 1991-04-19 Voltage control method in printer and device therefor

Publications (1)

Publication Number Publication Date
JPH04319971A true true JPH04319971A (en) 1992-11-10

Family

ID=13931744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8804191A Pending JPH04319971A (en) 1991-04-19 1991-04-19 Voltage control method in printer and device therefor

Country Status (1)

Country Link
JP (1) JPH04319971A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779735A2 (en) 1995-12-13 1997-06-18 Fuji Xerox Co., Ltd. Image quality control in image forming apparatus
US5682573A (en) * 1995-03-01 1997-10-28 Fuji Xerox Co., Ltd. Image quality control in image forming apparatus
US5729786A (en) * 1994-09-13 1998-03-17 Fuji Xerox Co., Ltd. Image forming control apparatus which retreives control rules via control cases stored in control clusters
US5734407A (en) * 1995-03-31 1998-03-31 Fuji Xerox Co., Ltd. Image quality control at restart of image forming apparatus
US5887223A (en) * 1996-08-13 1999-03-23 Fuji Xerox Co., Ltd. Image forming apparatus having high image quality control mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729786A (en) * 1994-09-13 1998-03-17 Fuji Xerox Co., Ltd. Image forming control apparatus which retreives control rules via control cases stored in control clusters
US5682573A (en) * 1995-03-01 1997-10-28 Fuji Xerox Co., Ltd. Image quality control in image forming apparatus
US5734407A (en) * 1995-03-31 1998-03-31 Fuji Xerox Co., Ltd. Image quality control at restart of image forming apparatus
EP0779735A2 (en) 1995-12-13 1997-06-18 Fuji Xerox Co., Ltd. Image quality control in image forming apparatus
US5887223A (en) * 1996-08-13 1999-03-23 Fuji Xerox Co., Ltd. Image forming apparatus having high image quality control mechanism

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Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 19991001