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A method to detect poor attachment of the ink ribbon cartridge of a dot-matrix printer

IP.com Disclosure Number: IPCOM000011899D
Original Publication Date: 2003-Mar-25
Included in the Prior Art Database: 2003-Mar-25
Document File: 2 page(s) / 16K

Publishing Venue

IBM

Abstract

Disclosed is a method to detect the poor attachment of the ink ribbon cartridge of a dot matrix printer by using a plate spring between the ink cartridge and the printer frame.

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At least one non-text object (such as an image or picture) has been suppressed.
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A method to detect poor attachment of the ink ribbon cartridge of a dot-matrix printer

  Figure 1 shows the top and front view of a print carrier. Figure 2 shows the detail of the left side of the printer. The print carrier on the carrier shaft can move to right and left. The printer detects the sensor lever of the print carrier by using a home sensor near the left side of the print carrier when the print carrier moves to the left side. The printer initializes the position of the print carrier by using this sensor. The printer has a plate spring on the left side of the printer frame. When a ribbon cartridge is not set the printer, the plate spring obstructs the home sensor. When the ribbon cartridge is set the printer, the plate spring does not obstruct the home sensor. While the carrier is moving, the printer checks the home sensor. If the printer detects shutting off the sensor when the print carrier is not at the position of shutting off the sensor, the printer judges either the ribbon cartridge is out of place or the carrier is jammed.

Figure 1. Top and Front front view of the printer.

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Figure 2. Detail of the left side of the printer.

Disclosed by International Business Machines Corporation

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