Image forming apparatus

An image forming apparatus, comprising:

• an optoelectric conversion element for converting an image read from a document to an input electric signal;
• signal processing means for converting the input electric signal from said optoelectric conversion element to digital image data;
• and
• timing generating means for generating a timing signal to be applied to said optoelectric conversion element and said signal processing means,
• wherein the timing signal has a delay amount adjusted in accordance with a delay time between the input electric signal and the output digital image data per each of respective processing elements of said signal processing means sequentially supplied in an order of the respective processing elements.

An image forming apparatus comprising:

• a CCD element converting an image read from a document to an electric signal;
• a signal processor converting the electric signal from said CCD element to digital image data;
• and
• a timing generator generating a timing signal to be applied to said CCD element and said signal processor,
• wherein said timing generator includes:
• a first pattern signal generator repeatedly generating a previously established pattern signal;
• a second pattern signal generator repeatedly generating the previously established pattern signal and stopping the generation of the previously established pattern signal only during a predetermined time period of one scanning to generate a signal in an active state during a time period set from an external trigger signal;
• and
• a third pattern signal generator generating a timing signal starting at generation of a trigger signal in a main scanning.

An image forming apparatus, comprising:

• a CCD element converting an image read from a document to an input electric signal;
• a signal processor converting the input electric signal from said CCD element to digital image data;
• and
• a timing generator generating a timing signal to be applied to said CCD element and said signal processor,
• wherein the timing signal has a delay amount adjusted in accordance with a delay time between the input electric signal and the output digital image data per each of respective processing elements of said signal processor sequentially supplied in an order of the respective processing elements.

A method of forming an image in an image forming apparatus, comprising steps of:

• converting an image read out from a document to an electric signal;
• converting the electric signal to digital image data;
• and
• generating a timing signal to be applied in said steps of converting the image read out from the document and converting the electric signal,
• wherein said step of generating said timing signal further include the substeps of:
• repeatedly generating a previously established pattern signal;
• repeatedly generating the previously established pattern signal and stopping the generation of the previously established pattern signal only during a predetermined time period of one scanning to generate a signal in an active state during a time period set from an external trigger signal;
• and
• generating a timing signal starting at generation of a trigger signal in a main scanning.

A method of forming an image in an image forming apparatus comprising steps of:

• converting an image read out from a document to an input electric signal by an optoelectric conversion operation;
• converting the input electric signal to digital image data;
• and
• generating a timing signal to be applied in said steps of converting the image read out from the document and converting the electric signal,
• wherein the timing signal has a delay amount adjusted in accordance with a delay time between the input electric signal and the output digital image data per each of respective processing elements.

An image forming apparatus comprising:

• a CCD element converting an image read from a document to an electric signal;
• a signal processor converting the electric signal from said CCD element to digital image data;
• and
• a timing generator generating a timing signal to be applied to said CCD element and said signal processor, said timing generator not using an exclusively integrated circuit for the CCD element,
• wherein said timing generator includes:
• a first pattern signal generator repeatedly generating a previously established pattern signal;
• a second pattern signal generator repeatedly generating the previously established pattern signal and stopping the generation of the previously established pattern signal only during a predetermined time period of one scanning to generate a signal in an active state during a time period set from an external trigger signal;
• and
• a third pattern signal generator generating a timing signal starting at generation of a trigger signal in a main scanning.