Boots – shoes – and leggings
Patent
1985-05-14
1988-05-03
Zache, Raulfe B.
Boots, shoes, and leggings
355 14R, 371 15, G06F 1516, G06F 1100, G03G 1500
Patent
active
047424834
ABSTRACT:
A laser printer receiving font data and program data through removable font cartridges, which permit the user to interchange the particular font style as desired, and allows the servicing of the system by a separate maintenance program which is downloaded from the font cartridge. The laser printer sytstem includes a microprocessor which reads a particular address on the font cartridge to indicate whether the information stored thereon is font data or program information. If the information on the cartridge is a program, a subsequent font cartridge address location indicates whether an operating system or a maintenance program is resident thereon and is to be downloaded into the microprocessor system. Upon loading of such maintenance program, the maintenance operator may individually select a specific test according to a sequence of interactive system prompts. The maintenance tests include manipulation of the mechanical elements and cycling of associated printer components, together with testing of electronic components incorporated in the system. The condition ascertained by the tests is reported on the front panel by error codes, and the system may be again placed into normal operation by cycling the power, wherein the font data is available through the same port which had previously received the maintenance program. The resulting laser printer provides a flexible and simplified operation and maintenance of a complex electronic and mechanical printer system with a minimum of user familiarity with internal system operations.
REFERENCES:
patent: 4188668 (1980-02-01), Finlay
Minolta Camera Company, Ltd.
Zache Raulfe B.
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