A printer prevents color smear when a paper roll mounted on the printer is initially fed. The printer includes a plurality of printing units each having a thermal head and an ink ribbon, and a platen roller having an outer surface opposite the plurality of printing units. The platen roller can be rotated by a stepping motor. A printing medium is arranged on a roll at the most upstream side of the delivery path. A printed result of a predetermined printing length is obtained by sequentially trans...

A printer comprising a supporting structure and a print disc having a curved peripheral surface with characters formed thereon. The print disc is mounted on the supporting structure for rotation about a rotational axis. Paper is moved over the peripheral surface in a direction generally parallel to the rotational axis, and one or more hammers cooperate with the paper and the characters for effecting printing on the paper. A guide generally conforms the paper to at least a portion of the curved p...

The printer includes a common feed and eject portion constructed as friction belt drive; it further includes a friction drum and a print head and cutter between the drum and the ejection portion which participates in the advance during printing but runs a little longer than the friction drum to hold the paper taut. This period is extended during advance after printing the last line to tension the paper during cutting. The combination of feed and eject permits front end feeding and ejection.

A printer having a printing head which prints characters across lines on a recording medium. The printer includes a frame having a driving shaft rotatably supported thereon and a motor for rotating the driving shaft in first and second directions. The printer also includes a paper feeding mechanism and a platen releasing mechanism. A clutch mechanism is driven by the driving shaft and is operatively coupled to the paper feeding and platen releasing mechanisms for selective operation thereof.

An improved printer of the type including an exposing and printing box in which a strip of printing paper is intermittently introduced into an exposing section in the downward direction substantially in parallel to the optical axis of light beam coming down from a light beam source is disclosed. A mirror fixedly mounted on a turnable mirror support is disposed at the position located in the proximity of the bottom of a trimming dark box so as to allow the direction of propagation of light beam t...

The present invention relates to a printer which can print in at least two print colors and is especially capable of outputting a desired print color. The printer comprises a printing unit having plural developing colors, and a printer control unit which outputs image data, which has been input from host equipment and developed in a bit map memory, into the printing unit. The printer control unit has plural color modulation data, and selects one of these color modulation data for color modulatio...

A printer for printing both image information and additional character information superimposed on the image. The printer comprises an additional character information generation circuit, a display circuit for displaying the additional character information generated by the additional character information generation circuit, and a selecting circuit for selecting characters and/or symbols in the additional character information. A plurality of additional character information symbols and/or char...

A printer includes a housing containing a removable ink ribbon cartridge and a platen. In use, the platen is located over the ink ribbon in the cartridge. The platen is pivotable from the in use position to a raised position to provide clearance for removal and replacement of the cartridge.

A printer is provided which has an openable front panel. This front panel is opened to load printing paper into a paper tray which is invisibly located behind the front panel. The paper tray is provided in a mechanical sub-chassis movably disposed within a mechanical main chassis of the printer. The sub-chassis is laterally slidable relative to the main chassis via a pair of guide rails and is rotatable to open the front panel via a pair of arm plate to expose the paper tray outside of the print...

A printer comprising: printing means for forming an image on a paper; setting means for setting independently a plural kind of analytical conditions for printing information; a plurality of store means each for storing a set of setting values which correspond to the analytical conditions of said plural kind of printing information set by said setting means; first selective means for selecting one among said plurality of said store means; a plurality of analytical means each for analyzing inputte...