EP 0279242 B1 19921230 - REPLACEMENT UNIT FOR INK RIBBON CARTRIDGE
Title (en)
REPLACEMENT UNIT FOR INK RIBBON CARTRIDGE
Publication
Application
Priority
- DE 3705057 A 19870218
- DE 3742860 A 19871217
Abstract (en)
[origin: US4861177A] A reloadable ribbon cassette system for typewriters or office machines of similar construction employs a bottom housing in which an exchangeable supply spool core for the ribbon and an exchangeable take-up spool core can be rotatably mounted. To facilitate the reloading process a cover plate is placed onto the top face of the ribbon coiled on the supply spool core, the cover plate inserted into the bottom housing member along with the supply spool core and ribbon when they are loaded. The cover plate has a contact surface for helping to steady a fastening element disposed at the free end of the ribbon during reloading. The cover plate projects beyond the ribbon coil at least in the region of the contact shelf to prevent accidental removal of the first few turns of the coiled ribbon in axial direction. The cover plate unequivocally gives a starting point for a guide pin which is detachably connected to the fastening element, the guide pin being used for threading the ribbon around a ribbon path to the take-up spool core.
IPC 1-7
IPC 8 full level
B41J 31/10 (2006.01); B41J 32/00 (2006.01); B41J 33/00 (2006.01)
CPC (source: EP US)
B41J 31/10 (2013.01 - EP US); B41J 32/00 (2013.01 - EP US); B41J 33/00 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0279242 A2 19880824; EP 0279242 A3 19890809; EP 0279242 B1 19921230; CA 1297339 C 19920317; DE 3742860 A1 19880901; DE 3877010 D1 19930211; US 4861177 A 19890829
DOCDB simple family (application)
EP 88101214 A 19880128; CA 559054 A 19880217; DE 3742860 A 19871217; DE 3877010 T 19880128; US 15720188 A 19880218