Facsimile apparatus with reciprocating printing bar

Claim 1

In a facsimile receiver having a frame carrying a drum provided with a printing helix, a supply roller for carrying a rolled web of paper and drive means including a drive roller for driving said paper; and a guide roller for guiding said web of paper between said drum and a printing bar; the improvement comprising a support carrying the printing bar; a presser-roller for pressing the paper web against the drive roller; a chassis carrying said support for said printing bar, said guide roller and said presser-roller; and means for pivotally mounting said chassis about an axis parallel to the axis of said drum between a first position in which the web of paper is held against said guide roller between the drum and the printing bar and between the drive roller and the presser-roller, and a second position wherein said guide roller and said presser-roller as well as said printing bar are positioned remote from said drum and said supply roller, said printing bar comprising a yoke and an elongated support member slideably mounted in said yoke for movement in the direction of the longitudinal axis thereof, said printing bar being carried by said elongated support member, and means responsive to rotation of said guide roller for reciprocating said elongated support member, said guide roller having a groove in the form of a closed loop in the surface thereof, and said means for reciprocating said elongated support member comprises a guide rod connected to said printing bar support and engaging said groove so as to reciprocate in the direction of the axis of said guide roller.