摘要:
The invention relates to a print system and a method for stopping the print system from printing. The print system comprises a control unit for controlling the printing of sheets, a print engine for printing recording material on the sheets, an input tray for holding sheets to be printed upon, and a finishing unit. The method comprises the steps of scheduling a plurality of sheets for printing by the print engine and for finishing by the finishing unit, the scheduling step comprising a first step of sending a sheet request for a sheet of the plurality from the control unit to the finishing unit and a second step of, upon receiving the sheet request, replying by the finishing unit an earliest expected arrival time of the sheet at the finishing unit, which earliest expected arrival time is respected by the print engine as a minimum delay time between the sheet and a previous sheet preceding the sheet, wherein in case of an exception which requires operator intervention the method comprises the steps of submitting an earliest expected arrival time by the finishing unit to the control unit which is so huge that a gap in time between a particular sheet which has not left the input tray and a previous sheet which is preceding the particular sheet becomes larger than a travel time of the previous sheet from the input tray to the finishing unit, submitting an artificial notification by the finishing unit to the control unit, after the previous sheet has been deposited in the finishing unit, the artificial notification reporting a severe error at the print system that normally leads to a print engine stop, and stopping the print engine by the control unit before the particular sheet leaves the input tray.
摘要:
The invention relates to a method of using an interface device to interface to a processing unit (28), the interface device and the processing unit being comprised in a station (12) of a plurality of stations (12,14,16) in a sheet processing line, the method comprising - using the interface device (34) to receive a control signal from an upstream station (10). The method comprises - determining a comparison result by comparing a selection part of the control signal with a reference, the selection part being comprised in an addressing part of the control signal; - in case of a negative comparison result, determining a further control signal from the control signal, at least a further addressing part of the further control signal being derived from and differing from the addressing part of the control signal and using the interface device to output the further control signal to a further interface device corresponding to a further processing unit of a downstream station; and - in case of a positive comparison result, sending an instruction signal from the interface device to the processing unit.
摘要:
The invention relates to a print system and a method for stopping the print system from printing. The print system comprises a control unit for controlling the printing of sheets, a print engine for printing recording material on the sheets, an input tray for holding sheets to be printed upon, and a finishing unit. The method comprises the steps of scheduling a plurality of sheets for printing by the print engine and for finishing by the finishing unit, the scheduling step comprising a first step of sending a sheet request for a sheet of the plurality from the control unit to the finishing unit and a second step of, upon receiving the sheet request, replying by the finishing unit an earliest expected arrival time of the sheet at the finishing unit, which earliest expected arrival time is respected by the print engine as a minimum delay time between the sheet and a previous sheet preceding the sheet, wherein in case of an exception which requires operator intervention the method comprises the steps of submitting an earliest expected arrival time by the finishing unit to the control unit which is so huge that a gap in time between a particular sheet which has not left the input tray and a previous sheet which is preceding the particular sheet becomes larger than a travel time of the previous sheet from the input tray to the finishing unit, submitting an artificial notification by the finishing unit to the control unit, after the previous sheet has been deposited in the finishing unit, the artificial notification reporting a severe error at the print system that normally leads to a print engine stop, and stopping the print engine by the control unit before the particular sheet leaves the input tray.