Stencil printing machine

A stencil printing machine comprising a stencil drum and an opposite which are a pair of cylindrical parts located with their external peripheral surfaces being close to each other, a stencil sheet being detachably wound on the external peripheral surface of said stencil drum, and

• serving to perform a stencil printing process by rotating said stencil drum and said opposite in order that the external peripheral surfaces thereof are located close to each other and moved in the same direction while said stencil sheet is pressed against said opposite, and by making said stencil sheet in contact under pressure with a sheet of paper passing between said stencil drum and said opposite by the pressing force of said stencil drum,
• wherein said stencil drum is detachably mounted on said stencil printing machine and is provided with a stencil drum control section;
• and
• wherein a machine body of said stencil printing machine is provided with a machine body control section comprising:
• a control unit,
• a storage unit connected to said control unit for storing information about a pressing force of said stencil drum relative to said machine body, and
• a machine body/stencil drum communication unit;
• wherein said machine body/stencil drum communication unit of said machine body control section is in communication with said stencil drum control section for exchanging data between said machine body of said stencil printing machine and said stencil drum.

A stencil printing machine comprising a stencil drum and an opposite which are a pair of cylindrical parts located with their external peripheral surfaces being close to each other, a stencil sheet being detachably wound on the external peripheral surface of said stencil drum, and

• serving to perform a stencil printing precess by rotating said stencil drum and said opposite in order that the external peripheral surfaces thereof are located close to each other and moved in the same direction while said stencil sheet is pressed against said opposite, and by making said stencil sheet in contact under pressure with a sheet of paper passing between said stencil drum and said opposite by the pressing force of said stencil drum,
• wherein said stencil drum is detachably mounted on said stencil printing machine and is provided with a first storage unit for storing information about a pressing force of said stencil drum against said opposite, and
• wherein a machine body of said stencil printing machine is provided with a second storage unit for storing information about a pressing force of said stencil drum relative to said machine body,
• wherein said stencil printing machine further comprises:
• a standard pressing force determination unit for determining a standard pressing force;
• a correction value calculation unit for calculating a correction value by the use of the information about the pressing force as stored in said first storage unit of said stencil drum and the information about the pressing force as stored in said second storage unit of said machine body;
• and
• a calculation unit for calculating the pressing force by the use of said standard pressing force and said correction value.

A stencil print ing machine comprising a stencil drum and an opposite which are a pair of cylindrical parts located with their external peripheral surfaces being close to each other, a stencil sheet being detachably wound on the external peripheral surface of said stencil drum, and

• serving to perform a stencil printing precess by rotating said stencil drum and said opposite in order that the external peripheral surfaces thereof are located close to each other and moved in the same direction while said stencil sheet is pressed against said opposite, and by making said stencil sheet in contact under pressure with a sheet of paper passing between said stencil drum and said opposite by the pressing force of said stencil drum,
• wherein said stencil drum is detachably mounted on said stencil printing machine and is provided with a stencil drum control section for controlling an operational value of a pressing force to be exerted on said stencil drum against said opposite, said control section comprising:
• a control unit;
• a standard operational quantity storage unit for storing a standard operational quantity, determined based on a printing speed, a printing density and a temperature of said stencil drum, of said stencil drum relative to said opposite,
• a correction value storage unit for storing a drum correction value related to said stencil drum and said stencil printing machine;
• and
• a calculation unit for calculating the operational value of said pressing force as a function of said standard operational quantity and said drum correction value.

A stencil printing machine comprising a stencil drum and an opposite which are a pair of cylindrical parts located with their external peripheral surfaces being close to each other, a stencil sheet being detachably wound on the external peripheral surface of said stencil drum, and

• serving to perform a stencil printing precess by rotating said stencil drum and said opposite in order that the external peripheral surfaces thereof are located close to each other and moved in the same direction while said stencil sheet is pressed against said opposite, and by making said stencil sheet in contact under pressure with a sheet of paper passing between said stencil drum and said opposite by the pressing force of said stencil drum,
• wherein said stencil drum is detachably mounted on said stencil printing machine and wherein a machine body of said stencil printing machine is provided with a machine body control section for controlling a pressing force to be exerted to said stencil drum against said opposite, said control section comprising:
• a control unit;
• a standard operational quantity storage unit for storing a standard operational quantity, determined based on a printing speed, a printing density and a temperature of said stencil drum, of said stencil drum relative to said machine body,
• a correction value storage unit for storing a machine body correction value related to said machine body and said stencil drum installed therein;
• and
• a calculation unit for calculating the operational value of said pressing force as a function of said standard operational quantity and said machine body correction value.

A method for controlling an operational value of a pressing force to be exerted to a stencil drum relative to an opposite both of which are installed in a stencil printing machine, said method comprising the steps of:

• inputting into a standard operational quantity storage unit a standard operational quantity, determined based on a printing speed, a printing density and a temperature of said stencil drum, of said stencil drum relative to said opposite;
• inputting into a correction value storage unit a drum correction value corresponding to said stencil drum and said opposite;
• and
• calculating the operational value of said pressing force as a function of the standard operational quantity and the drum correction value.

A method for controlling an operational value of a pressing force to be exerted to a stencil drum installed in a machine body of a stencil printing machine which has a machine body control section, said method comprising the steps of:

• inputting into a standard operational quantity storage unit of said machine body control section a standard operational quantity, determined based on a printing speed, a printing density and a temperature of said stencil drum, of said stencil drum relative to said machine body;
• inputting into a correction value storage unit of said machine body control section a drum correction value related to said stencil drum and said machine body;
• and
• calculating the operational value of said pressing force as a function of said standard operational quantity and said drum correction value.

A method for controlling an operational value of a pressing force to be exerted to a stencil drum of a stencil printing machine, said method comprising the steps of:

• inputting into a correction value calculation unit a drum correction value corresponding to a printing drum installed in the stencil printing machine;
• inputting into said correction value calculation unit a machine body correction value;
• calculating a pressing force correction value as a function of the drum correction value and the machine body correction value;
• and
• calculating the operational value of the pressing force as a function of the pressing force correction value and a standard pressing force.