Heat-fixing apparatus for color video printer including a stationary heat tube

A heat-fixing apparatus for performing a heat-fixing process in a color video printer after a receiver paper, having an upper surface and an under surface, has undergone a developing process for developing an image on the receiver paper, said apparatus comprising:

• heating means for heating the under surface of the receiver paper thereby heat-fixing the image which has been developed on said receiver paper said heating means including a stationary heat tube enclosing a heat source therein;
• receiver paper feeding and discharging means for feeding the receiver paper to the heating means after said receiver paper has been processed by the developing process, under the condition that said under surface of the receiver paper is in contact with said heating means, and for discharging the receiver paper which has been processed by the heat-fixing process;
• and
• an additional heat source which is disposed above said heating means in order to selectively generate additional heat;
• and
• a blower for selectively providing a hot air current for the upper surface of said receiver paper when said receiver paper is processed by said h eat-fixing process, and for selectively providing a cooling air current for cooling said receiver paper after being processed by the heat-fixing process.

A heat-fixing apparatus for performing a heat-fixing process in a color video printer after a receiver paper, having an upper surface and an under surface, has undergone a developing process for developing an image on the receiver paper, said apparatus comprising:

• heating means for heating the under surface of the receiver paper, thereby heat-fixing the image which has been developed on said receiver paper, said heating means including a rotary heat roller enclosing a stationary heat tube with a heat source therein;
• and
• receiver paper feeding and discharging means for feeding the receiving paper to the heating means after said receiver paper has been processed by the developing process, under the condition that said under surface of the receiver paper is in contact with said heating means, and for discharging the receiver paper which has been processed by the heat-fixing process, said receiver paper feeding and discharging means including.
• upper and lower paper feed guide plate members for guiding the receiver paper, after said receiver paper has been processed by said developing process, to an upper surface of said heating means;
• a first electrification member for electrifying said receiver paper with a predetermined polarity in order to make the under surface of said receiver paper contact a paper contact part of said heating means;
• a second electrification member for electrifying said heating means with an opposite polarity to said predetermined polarity of said receiver paper;
• and
• paper separating members for separating said receiver paper, which has been processed by the heat-fixing process, from said heating means and for then discharging said receiver paper.

A heat-fixing apparatus for performing a heat-fixing process in a color video printer after a receiver paper, having an upper surface and an under surface, has undergone a developing process for developing an image on the receiver paper, said apparatus comprising:

• heating means for heating the under surface of the receiver paper, thereby heat-fixing the image which has been developed on said receiver paper, said heating means including a stationary heat tube enclosing a heat source therein;
• and
• receiver paper feeding and discharging means for feeding the receiver paper to the heating means after said receiver paper has been processed by the developing process, under the condition that said under surface of the receiver paper is in contact with said heating means, and for discharging the receiver paper which has been processed by the heat-fixing process, said receiver paper feeding and discharging means including,
• upper and lower paper feed guide plate members for guiding the receiver paper, after said receiver paper has been processed by said developing process, to an upper surface of said heating means;
• an electrification member for electrifying said receiver paper with a predetermined polarity in order to make the under surface of said receiver paper contact a paper contact part of said heating means;
• and
• upper and lower paper discharge rollers for forcibly drawing the receiver paper having been processed by said heat-fixing process, and for separating said receiver paper from said heating means in order to discharge said receiver paper from said heat-fixing apparatus.

A heat-fixing apparatus for performing a heat-fixing process in a color video printer after a receiver paper, having an upper surface and an under surface, has undergone a developing process for developing an image on the receiver paper, said apparatus comprising:

• heating means for heating the under surface of the receiver paper, thereby heat-fixing the image which has been developed on said receiver paper, said heating means including a rotary heat roller enclosing a stationary heat tube with a heat source therein;
• and
• receiver paper feeding and discharging means for feeding the receiver paper to the heating means after said receiver paper has been processed by the developing process, under the condition that said under surface of the receiver paper is in contact with said heating means, and for discharging the receiver paper which has been processed by the heat-fixing process, said receiver paper feeding and discharging means including,
• upper and lower paper feed guide plate members for guiding the receiver paper to a contact part of said heat roller;
• a lower paper discharge guide plate member for guiding discharge of said receiver paper to a position below said contact part of the heat roller;
• an insulation part for insulating a part of said heat roller in order to cut off heat transfer to margins of said receiver paper, said insulation part being integrally formed with said heat roller and having the same outer diameter as that of a center contact part of the heat roller;
• a compression roller for making said margins of the receiver paper closely contact said insulation part of the heat roller, said compression roller being disposed on said heat roller;
• upper and lower discharge rollers for discharging the receiver paper which has been processed by said heat-fixing process and guided by said lower paper discharge guide plate member;
• and
• paper discharge guide means for automatically separating said receiver paper which has passed through said paper discharge rollers form said paper discharge rollers, and for discharging said receiver paper from the heat-fixing apparatus.

A heat-fixing apparatus for performing a heat-fixing process in a color video printer after a receiver paper, having an upper surface and an under surface, has undergone a developing process for developing an image on the receiver paper, said apparatus comprising:

• heating means for heating the under surface of the receiver paper, thereby heat-fixing the image which has been developed on said receiver paper, said heating means including a rotary heat roller enclosing a stationary heat tube with a heat source therein;
• and
• receiver paper feeding and discharging means for feeding the receiver paper to the heating means after said receiver paper has been processed by the developing process, under the condition that said under surface of the receiver paper is in contact with said heating means, and for discharging the receiver paper which has been processed by the heat-fixing process, said receiver paper feeding and discharging means including,
• a belt guide roller spaced apart from said heat roller by a predetermined distance;
• an endless plate belt connected between said belt guide roller and said heat roller;
• a compression roller for pressing an image transferred part of said receiver paper to said endless plate belt and for causing the receiver paper to wrap about said heat roller in response to a biasing force of a compression member;
• a paper feed guide plate member for supporting said receiver paper to closely in contact with said endless plate belt between said heat roller and said belt guide roller;
• a blower for circulating an air current at a lower part of said paper feed guide plate member in order to cool said receiver paper;
• and
• power transmission means for driving said heat roller, said belt guide roller and said compression roller.