Continuous medium printing apparatus

A continuous medium printing apparatus for performing printing on a continuous medium, comprising:

• a conveyance system for conveying said continuous medium along a conveying path;
• a printing section for performing printing on said continuous medium being conveyed along said conveying path;
• and
• an automatic feed-force adjustment unit for automatically adjusting feed force to be applied to said continuous medium, said automatic feed-force adjustment unit being disposed along said conveying path;
• wherein said automatic feed-force adjustment unit includes:
• a buffer section for sucking up deflection of said continuous medium produced due to a change in said feed force to be applied to said continuous medium, said buffer section being disposed on a downstream side of said conveying path from said printing section;
• a deflection quantity detection section for detecting a quantity of deflection of said continuous medium sucked up by said buffer section, as a quantity corresponding to said feed force to be applied to said continuous medium;
• a feed-force adjustment section for adjusting said feed force to be applied to said continuous medium, said feed-force adjustment section being disposed on a downstream side of said conveying path from said deflection quantity detection section;
• and
• a feed-force control section for controlling said feed-force adjustment section so that said feed force to be applied to said continuous medium varies according to said deflection quantity detected by said deflection quantity detection section.

A continuous medium printing apparatus for performing printing on both sides of a continuous medium, comprising:

• a conveyance system including means for applying a feed force to said continuous medium for conveying said continuous medium along a conveying path;
• a printing section for performing printing on said continuous medium being conveyed along said conveying path;
• a printing condition obtaining section for obtaining a printing area rate in said continuous medium as said printing condition;
• a feed-force adjustment section for adjusting the feed force applied to said continuous medium, said feed-force adjustment section being disposed on a downstream side of said conveying path from said printing section;
• and
• a feed-force control section containing means for controlling said feed-force adjustment section in such a manner that said feed force applied to said continuous medium varies according to said printing condition so as to increase when the printing area rate is high and decrease when the printing area rate is low.

A continuous medium printing apparatus for performing printing on both sides of a continuous medium, comprising:

• a conveying system including means for applying a feed force to said continuous medium for conveying said continuous medium along a conveying path;
• a printing section for performing printing on said continuous medium being conveyed along said conveying path;
• a printing condition obtaining section for obtaining a time that a scuff roller has been used as said printing condition;
• a feed-force adjustment section for adjusting the feed force applied to said continuous medium, said feed-force adjustment section being disposed on a downstream side of said conveying path from said printing section;
• and
• a feed-force control section containing means for controlling said feed-force adjustment section in such a manner that said feed force applied to said continuous medium varies according to said printing condition so as to increase when the time that said scuff roller has been used is long and decreases when the time that said scuff roller has been used is short.