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Ink supply adjustment mechanism for an ink ribbon cartridge

IP.com Disclosure Number: IPCOM000171936D
Original Publication Date: 2008-Jun-23
Included in the Prior Art Database: 2008-Jun-23
Document File: 4 page(s) / 226K

Publishing Venue

IBM

Abstract

Disclosed is a mechanism to adjust the amount of ink supply in the ribbon cartridge of a impact printer by using a thin metal sheet as a shutter.

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Ink supply adjustment mechanism for an ink ribbon cartridge

Disclosed is a mechanism to adjust the amount of ink supply in the ribbon cartridge of a impact printer by using a thin metal sheet as a shutter.

Fig.1 shows a ribbon cartridge which is installed in the impact printer. Fig.2 shows a plane view of the internal mechanism at the right side of the ribbon cartridge. The ink ribbon is fed into the right side in the ribbon cartridge with the feed gears whenever the print head moves to the left or right. The ink is supplied to the feed gear with the ink supply pad, and is supplied to the ink ribbon through the feed gear as shown in Fig.2. Fig.3 shows the ink storage pad on the cartridge cover. The ink storage pad stores a lot of ink and supplies the ink to the ink supply pad by contacting.

Fig.4 shows the detailed parts of the mechanism to adjust the ink supply. The ink storage pad, ink supply pad and packing are made of felt etc. The shutter is made of thin stainless steel and has the lever made of plastic. The shutter is installed in the slit of the cartridge cover. The ink is not supplied when the shutter is closed as shown in Fig.5. The packing prevents an ink leak when the shutter slides in the slit. The ink is supplied from the ink storage pad to the ink supply pad when the shutter is moved to the right as shown in Fig.6. The amount of i...