Image forming apparatus and image forming method with precedent pre-output processing of a print start command
US6282388A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00548
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a precedent pre-output processing of a print start command in a digital reproducing apparatus, a print start command is saved in a command queue in an engine control task, and a next sheet feed start command is transmitted immediately after a termination command indicating sheet feed of a sheet which is being processed is received from a mechanism control section. Furthermore, the precedent pre-output of a print start command is performed even when sheet feed positions are different corresponding to a preceding sheet and a following sheet in such a case of printing in a cover sheet mode or printing using an automatic duplex unit. In this case, the digital reproducing apparatus does not transmit the command which has been precedently pre-output to a mechanism control section and notifies a print control task of no transmission of the command as cancellation of the print start command, thereby preventing the next sheet from being printed at a time of occurrence of sheet empty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.