Color printer

Claim 2

A printer including a platen, a carriage for moving a printing head along a line of printing to print from a print ribbon disposed between the print head and platen, said carriage including: cartridge housing means for replaceably supporting a plurality of print ribbon cartridges one above the other; means carried by said carriage for providing vertical movement of said cartridge housing means to bring the ribbon of a selected cartridge between the print head and the platen at any printing location in said line of printing, said means for providing vertical movement of said cartridge housing means including a pair of vertical slots in a pair of sidewalls fixed to said carriage said housing means having corresponding pins which ride in such slots; and ribbon drive means for moving ribbon past the print head as printing progresses.

Claim 3

A printer as in claim 1 including ribbon guide means offset from the end of said print head for allowing easy passage of said ribbons past said head during said vertical movements.

Claim 4

A printer including a platen, a carriage for moving a printing head along a line of printing to print from a print ribbon disposed between the print head and platen, said carriage including: cartridge housing means for replaceably supporting a plurality of print ribbon cartridges one above the other; means carried by said carriage for providing vertical movement of said cartridge housing means to bring the ribbon of a selected cartridge between the print head and the platen at any printing location in said line of printing; ribbon drive means for moving ribbon past the print head as printing progresses; said means for moving said housing means including means for moving the housing means vertically to place a pair of cartridges into association with said print head and including means for tilting said housing means clockwise or counterclockwise to bring the ribbon in the upper or lower cartridge of the pair between the print head and the platen.

Claim 5

A printer including a platen, a carriage for moving a printing head along a line of printing to print from a print ribbon disposed between the print head and platen, said carriage including: cartridge housing means for replaceably supporting a plurality of print ribbon cartridges one above the other; means carried by said carriage for providing vertical movement of said cartridge housing means to bring the ribbon of a selected cartridge between the print head and the platen at any printing location in said line of printing; ribbon drive means for moving ribbon past the print head as printing progresses; said means for moving said housing means including means for moving the housing means vertically to place a pair of cartridges into association with said print head and including means for tilting said housing means clockwise or counterclockwise to bring the ribbon in the upper or lower cartridge of the pair between the print head and the platen.

Claim 6

A printer as in claim 3 in which said ribbon drive means includes first electromagnet means for laterally moving said drive means opposite a selected cartridge and second electromagnet means for moving the drive means into cooperative engagement with the selected cartridge.

Claim 7

A printer as in claim 4 where said drive means is laterally movable into a gap between said cartridges and said second electromagent means tilts such drive means to engage a cartridge.

Claim 8

A printer including a platen, a carriage for moving a printing head along a line of printing to print from a print ribbon disposed between the print head and platen, said carriage including: cartridge housing means for replaceably supporting a plurality of print ribbon cartridges one above the other; means carried by said carriage for providing vertical movement of said cartridge housing means to bring the ribbon of a selected cartridge between the print head and the platen at any printing location in said line of printing; ribbon drive means for moving ribbon past the print head as printing progresses; means for providing a wider print gap between said print head and said platen during said vertical movement and at any printing location in said line of printing including electromagnet means for tilting said carriage away from said platen and including a pair of axes on which said carriage is slidably mounted for movement along said line of printing said electromagnet means adjusting the distance between said carriage and one of said axes to provide said tilt.

Claim 9

A printer including a platen, a carriage for moving a printing head along a line of printing to print from a print ribbon disposed between the print head and platen, said carriage including: cartridge housing means for replaceably supporting a plurality of print ribbon cartridges one above the other; means carried by said carriage for providing vertical movement of said cartridge housing means to bring the ribbon of a selected cartridge between the print head and the platen at any printing location in said line of printing; ribbon drive means for moving ribbon past the print head as printing progresses; means for providing a wider print gap between said print head and said platen during said vertical movement and at any printing location in said line of printing including electromagnet means for tilting said carriage away from said platen and including a pair of axes on which said carriage is slidably mounted for movement along said line of printing said electromagnet means adjusting the distance between said carriage and one of said axes to provide said tilt.