Image forming apparatus, image forming method, and non-transitory recording medium which performs adjustment of image formation based on adjusted sheet size

An image forming method, comprising:

• determining a sheet size of a sheet stored in a sheet storage by a first sheet sensor included in an image forming apparatus;
• feeding a first sheet from the sheet storage to a transport path by a feeder included in the image forming apparatus, an amount of the feeding being determined based on the sheet size;
• reading the first sheet fed to the transport path and confirming or adjusting the sheet size of the sheet using a second sheet sensor included in the image forming apparatus;
• and
• performing adjustment of image formation on the sheet by a hardware processor included in the image forming apparatus based on the confirmed or adjusted sheet size,
• wherein the second sheet sensor reads a sheet size larger than a sheet size determined by the first sheet sensor.

An image forming method, comprising:

• determining a sheet size of a sheet stored in a sheet storage by a first sheet sensor included in an image forming apparatus;
• feeding a first sheet from the sheet storage to a transport path by a feeder included in the image forming apparatus, an amount of the feeding being determined based on the sheet size;
• reading the first sheet fed to the transport path and confirming or adjusting the sheet size of the sheet using a second sheet sensor included in the image forming apparatus;
• feeding a second sheet following the first sheet to the transport path by the feeder;
• forming an adjustment image on the second sheet in the transport path by an image former included in the image forming apparatus;
• and
• calculating a distance value between an edge of the sheet and the adjustment image based on the confirmed or adjusted sheet size, calculating an image adjustment value by comparing the distance value with a predetermined ideal distance value, and performing adjustment of image formation on the sheet by a hardware processor included in the image forming apparatus based on the image adjustment value.

An image forming method, comprising:

• determining a sheet size of a sheet stored in a sheet storage by a first sheet sensor included in an image forming apparatus;
• feeding the sheet from the sheet storage to a transport path by a feeder included in the image forming apparatus, an amount of the feeding being determined based on the sheet size;
• forming an adjustment image on the sheet in the transport path by an image former included in the image forming apparatus;
• reading the sheet fed to the transport path and confirming or adjusting the sheet size of the sheet using a second sheet sensor included in the image forming apparatus;
• calculating a difference between the sheet size determined by the first sheet sensor and the adjusted sheet size, and changing an ideal distance value according to the difference;
• and
• calculating a distance value between an edge of the sheet and the adjustment image based on the sheet size determined by the first sheet sensor, calculating an image adjustment value by comparing the distance value with the changed ideal distance value, and performing adjustment of image formation on the sheet based on the image adjustment value.

A non-transitory recording medium storing a computer readable program that causes a computer to execute:

• determining a sheet size of a sheet stored in a sheet storage by a first sheet sensor included in an image forming apparatus;
• feeding a first sheet from the sheet storage to a transport path by a feeder included in the image forming apparatus, an amount of the feeding being determined based on the sheet size;
• reading the first sheet fed to the transport path and confirming or adjusting the sheet size of the sheet using a second sheet sensor included in the image forming apparatus;
• and
• performing adjustment of image formation on the sheet by a hardware processor included in the image forming apparatus based on the confirmed or adjusted sheet size,
• wherein the second sheet sensor reads is capable of reading a sheet size larger than a sheet size determined by the first sheet sensor.