Browse Prior Art Database

End of Ribbon Functional Operation for a Resistive Ribbon Printer

IP.com Disclosure Number: IPCOM000040686D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 2 page(s) / 74K

Publishing Venue

IBM

Related People

Beck, JL: AUTHOR [+4]

Abstract

A resistive ribbon printer with an off carrier ribbon automatically goes to a special ribbon load mode upon an end of ribbon detect. This releases the ribbon, and a message appears on a display informing an operator to load a new ribbon and the keys to press to continue operation. After loading, electronics verify that the ribbon has been correctly loaded and return the printer to the ribbon load position with a special message on the display when a problem occurs. A special end of ribbon verification mode prevents inadvertent entry into the end of ribbon mode. When an end of a ribbon is detected, a printer automatically goes into a ribbon load mode in which its carrier is moved to a special position which releases the ribbon from the mechanism and positions the mechanism so that the ribbon load path is fairly straight.

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End of Ribbon Functional Operation for a Resistive Ribbon Printer

A resistive ribbon printer with an off carrier ribbon automatically goes to a special ribbon load mode upon an end of ribbon detect. This releases the ribbon, and a message appears on a display informing an operator to load a new ribbon and the keys to press to continue operation. After loading, electronics verify that the ribbon has been correctly loaded and return the printer to the ribbon load position with a special message on the display when a problem occurs. A special end of ribbon verification mode prevents inadvertent entry into the end of ribbon mode. When an end of a ribbon is detected, a printer automatically goes into a ribbon load mode in which its carrier is moved to a special position which releases the ribbon from the mechanism and positions the mechanism so that the ribbon load path is fairly straight. A first message then appears on the display to inform the operator to load a new ribbon and the keys that need to be depressed to continue operation. After the old ribbon is removed and a new ribbon is manually loaded by the operator, the electronics perform a quick test to determine that the ribbon was loaded correctly. If an error was made in loading the ribbon, the mechanism returns to the ribbon load position, and a second message is presented on the display to inform the operator of the error. The electronics can detect several possible ribbon loading errors, including twists t...