Reducing I/O activity to allow a host based printing system to a

Details Reducing I/O activity to allow a host based printing system to a Reducing I/O activity to allow a host based printing system to a

1995-09-20

1997-09-09

Harvey, Jack B.

395835, G06F 132

Patent

active

056665393

ABSTRACT:
Reducing I/O port activity allows a period of inactivity to trigger the power save mode in computers. The user declares the period of inactivity. The printing system retrieves the period and relaxes the port activity by gradually lengthening the period between port accesses until the user designated value is reached. This relaxation happens under two circumstances; when the printer is idle and during communication errors. The period between port accesses is reinitialized to the normal value when a print job starts. Additionally, when the computer is awoken from the power save mode, either directly or indirectly, the port access period is shortened to its normal value. The printing system immediately starts to relax the frequency of port accesses as described above.

REFERENCES:
patent: 4922450 (1990-05-01), Rose et al.
patent: 5167024 (1992-11-01), Smith et al.
patent: 5396635 (1995-03-01), Fung
patent: 5461266 (1995-10-01), Koreeda et al.
patent: 5504907 (1996-04-01), Stewart et al.
patent: 5548763 (1996-08-01), Combs et al.

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