Image forming apparatus with image density detection means for controlling image forming conditions

An image forming apparatus comprising:

• an image receiver sheet bearing member for carrying an image receiver sheet;
• image forming means for forming an image on said image receiver sheet carried on said image receiver sheet bearing member;
• detection means for detecting the fault of said image receiver sheet bearing member, said detection means being arranged in a confronting relation to said image receiver sheet bearing member and being adapted to detect the density of the image;
• display means for displaying the fault on the basis of an output from said detection means;
• and
• control means for controlling an image forming condition of said image forming means on the basis of an output from said detection means.

An image forming apparatus, comprising:

• image forming means for forming an image on an image receiver member, said image forming means including an image bearing member on which a toner image can be born and transfer means for transferring said toner image onto said image receiver member;
• first detection means for detecting a density of said toner image on said image bearing member before an image transferring operation;
• second detection means for detecting a density of said toner image on said image receiver member after an image transferring operation;
• third detection means for detecting an environmental condition;
• and
• control means for controlling an image forming condition of said image forming means on the basis of detection results from said first, second and third detection means.

An image forming apparatus, comprising:

• image forming means for forming an image on an image receiver member, said image forming means including an image bearing member on which a toner image can be born and transfer means for transferring said toner image onto said image receiver member;
• first detection means for detecting a density of said toner image on said image bearing member before an image transferring operation;
• second detection means, for detecting a transfer position of said toner image on said image receiver member, and for detecting a density of said toner image on said image receiver member after an image transferring operation;
• and
• control means for controlling an image forming condition of said image forming means on the basis of detection results from said first and second detection means.