Abstract: In one example, a printer with parallel/serial operational sequencing includes an engine control unit and an image processor unit each coupled to a set of sub-systems. A network unit is coupled to the image processor unit to monitor network packets while the engine control unit, the set of sub-systems, and the image processor unit are in sleep states. When a first predetermined packet is received, the network unit signals with a first modulation signal that the image processor unit is to awaken first before the image processor unit determines whether to awaken the engine control unit and any of the set of sub-systems. When a second predetermined packet is received, the network unit signals with a second modulation signal that the image processor unit, the engine control unit, and a portion of the set of sub-systems are to awaken at the same time.

Abstract: A print system with a ratio-based adaptive switching technique includes a printing unit to print an image on a recording medium in a color mode or a monochrome mode. A number (cM) of monochrome pages printed in the color mode and a total number (pN) of printed pages are monitored. A ratio cM/pN that is indicative of excess cartridge wear of the print system is determined. Print-job performance and cartridge wear of the print system are optimized based on the determined ratio using a first and second threshold.

Abstract: A printing device tracks characteristics regarding duplex print jobs received and printed at the printing device. The print device adjusts the start time of a duplex print engine of the printing device following receipt of a new duplex print job at the printing device to print the new duplex print job, based on the tracked characteristics, to optimize a balance between print job performance and print engine wear.

Abstract: Example implementations relate to fast page first print optimization. For example, a system according to the present disclosure, may include a host driver coupled to a printing device. The host driver may send a command to the printing device indicating implementation of a fast page first feature, implement a page description language (PDL) on the printing device that defines print parameters for a print job on a first command of each page of the print job. Moreover, in response to the definition of the print parameters, and during or prior to startup of a print engine on the printing device, the host driver may determine if a print optimization of the fast page first feature would reduce a first page out time (FPOT) of the print job.

Abstract: A printing device tracks characteristics regarding duplex print jobs received and printed at the printing device. The print device adjusts the start time of a duplex print engine of the printing device following receipt of a new duplex print job at the printing device to print the new duplex print job, based on the tracked characteristics, to optimize a balance between print job performance and print engine wear.

Abstract: A disabler circuit is disclosed for disabling a function of a device. The disabler circuit includes a switch electrically coupled to an input voltage and to ground. The disabler circuit further includes a fuse electrically coupled a series with the switch between the input voltage and ground. The disabler circuit also includes a resistor electrically coupled and parallel with the switch and in series with the fuse between the input voltage and ground. If the switch is off, then current flows from the input voltage to ground through the resistor and the fuse and the current is too small to blow the fuse. If the switch is on, then current flows from the input voltage to ground through the switch and the fuse and is large enough to blow the fuse. In specific embodiment, the disabler circuit is part of a formatter in a printer to disable a duplexing function of the printer.

Abstract: A disabler circuit is disclosed for disabling a function of a device. The disabler circuit includes a switch electrically coupled to an input voltage and to ground. The disabler circuit further includes a fuse electrically coupled a series with the switch between the input voltage and ground. The disabler circuit also includes a resistor electrically coupled and parallel with the switch and in series with the fuse between the input voltage and ground. If the switch is off, then current flows from the input voltage to ground through the resistor and the fuse and the current is too small to blow the fuse. If the switch is on, then current flows from the input voltage to ground through the switch and the fuse and is large enough to blow the fuse. In specific embodiment, the disabler circuit is part of a formatter in a printer to disable a duplexing function of the printer.

Abstract: An image-formation device is disclosed which includes an image-formation mechanism and a controller. The image-formation mechanism is capable of forming images on media. The controller is capable of dynamically determining a first-page out (FPO) time for the image-formation mechanism based on at least changing characteristics of the image-formation mechanism.