Image forming apparatus

An image reading apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• first slant correcting means for physically correcting a slant of a document sheet on a document platform,
• second slant correcting means for electrically processing an image signal obtained by scanning a document image so as to correct a slant of said image,
• operating history calculating means for integrating information relating to the operation of said image reading means so as to generate an operating history, and
• control means for selecting either said first slant correcting means or said second slant correcting means based on information relating to said operating history so as to correct a slant of an image to be read and output a corrected image signal.

An image forming apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• image forming means for forming an image on a recording medium based on said image signal,
• document transport means for transporting a document sheet to a predetermined position on a document platform,
• slant correcting means for physically correcting a slant of said document sheet transported onto said document platform, and
• control means for determining whether said slant correcting means is effective according to predetermined imaging conditions so as to correct a slant of an image to be recorded and output a corrected image signal to said image forming means.

An image forming apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• image forming means for forming an image on a recording medium based on said image signal,
• document transport means for transporting a document sheet to a predetermined position on a document platform,
• slant correcting means for electrically processing an image signal obtained by scanning a document image so as to correct a slant of said image, and
• control means for determining whether said slant correcting means is effective according to predetermined imaging conditions so as to correct a slant of an image to be recorded and output a corrected image signal to said image forming means.

An image forming apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• image forming means for forming an image on a recording medium based on said image signal,
• document transport means for transporting a document sheet to a predetermined position on a document platform,
• slant correcting means for physically correcting a slant of said document sheet transported onto said document platform,
• operating history calculating means for integrating information relating to the operation of said image forming means so as to generate an operating history, and
• control means for determining whether said slant correcting means is effective, based on information relating to said operating history so as to correct a slant of an image to be recorded and output a corrected image signal to said image forming means.

An image forming apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• image forming means for forming an image on a recording medium based on said image signal,
• document transport means for transporting a document sheet to a predetermined position on a document platform,
• slant correcting means for electrically processing an image signal obtained by scanning a document image so as to correct a slant of said image,
• operating history calculating means for integrating information relating to the operation of said image forming means so as to generate an operating history, and
• control means for determining whether said slant correcting means is effective, based on information relating to said operating history so as to correct the slant of an image to be recorded and output a corrected image signal to said image forming means.

An image forming apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• image forming means for forming an image on a recording medium based on said image signal,
• document transport means for transporting a document sheet to a predetermined position on a document platform,
• slant correcting means for correcting a slant of said image, and
• control means for determining whether said slant correcting means is effective according to predetermined imaging conditions so as to correct a slant of an image to be recorded and output a corrected image signal to said image forming means.

An image forming apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• image forming means for forming an image on a recording medium based on said image signal,
• document transport means for transporting a document sheet to a predetermined position on a document platform,
• slant correcting means for correcting a slant of said document sheet transported onto said document platform, and
• operating history calculating means for integrating information relating to the operation of said image forming apparatus so as to generate an operating history, and
• control means for determining whether said slant correcting means is effective based on information relating to said operating history so as to correct a slant of an image to be recorded and output a corrected image signal to said image forming means.

An image reading apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• slant correcting means for physically correcting a slant of the document sheet transported onto a document platform,
• operating history calculating means for integrating information relating to the operation of said image reading means so as to generate an operating history, and
• control means for determining whether said slant correcting means is effective based on information relating to said operating history so as to correct a slant of an image to be read and output a corrected image signal.

An image reading apparatus comprising:

• image signal generating means for scanning a document image to generate an image signal,
• slant correcting means for electrically processing an image signal obtained by scanning a document image so as to correct a slant of said image,
• operating history calculating means for integrating information relating to the operation of said image reading means to generate an operating history, and
• control means for determining whether said slant correcting means is effective based on information relating to said operating history so as to correct a slant of an image to be read and output a corrected image signal.