A method of operating a printer compares print job parameters for a current print job to be printed by the printer to a database of print job parameters for previously performed print jobs to identify media issues that may be caused by printing the current print job at a nominal printhead/media transport path distance. The gap between the printheads and the media transport is adjusted for identified media issues. Additionally, the method evaluates the image data content of the current print job to identify media issues that may arise from the printing of each sheet in the print job. If media issues are identified from the image data content, then the gap between the printheads and the media transport is further adjusted for sheets corresponding to the identified media issues caused by the image data content. An inkjet printer capable of being operated in this manner is also disclosed.

A method of operating a printer compares print job parameters for a current print job to be printed by the printer to a database of print job parameters for previously performed print jobs to identify media issues that may be caused by printing the current print job at a nominal printhead/media transport path distance. The gap between the printheads and the media transport is adjusted for identified media issues. Additionally, the method evaluates the image data content of the current print job to identify media issues that may arise from the printing of each sheet in the print job. If media issues are identified from the image data content, then the gap between the printheads and the media transport is further adjusted for sheets corresponding to the identified media issues caused by the image data content. An inkjet printer capable of being operated in this manner is also disclosed.

Examples relate to adjusting systems to adjust a distance between a print medium support and a printhead. The adjusting system comprises a support structure and a print medium input beam and a print medium output movably coupled to the support structure to support the print medium support. The adjusting system further comprises an input and an output beam driving assembly to respectively move the print medium input and output relative to the support structure between an upper and a lower end including a home position. In addition, the adjusting system comprises an input beam sensor assembly and an output beam sensor assembly comprising a reference sensor and a relative sensor.

Examples relate to adjusting systems to adjust a distance between a print medium support and a printhead. The adjusting system comprises a support structure and a print medium input beam and a print medium output movably coupled to the support structure to support the print medium support. The adjusting system further comprises an input and an output beam driving assembly to respectively move the print medium input and output relative to the support structure between an upper and a lower end including a home position. In addition, the adjusting system comprises an input beam sensor assembly and an output beam sensor assembly comprising a reference sensor and a relative sensor.

A method of printing with coffee-based ink comprises providing a thermal ink-jet cartridge having a quantity of a coffee-based ink disposed within; receiving optical density data from a user via a touch-screen computerized interface, where the data describes an optical density of the coffee-based ink present within an ink-jet pod; and computing a customized droplet-size for the coffee-based ink in its current state within the thermal ink-jet cartridge. A suitable printing apparatus can include coffee-based ink in a cartridge, an image-processing system, an image processing module for determining, inter alia, droplet size and missing/defective nozzles, and a nozzle-compensation module. Suitable ink formulations are human-edible and aqueous.

Disclosed is droplet ejecting apparatus that ejects droplets of a functional liquid onto a workpiece to draw a pattern. The droplet ejecting apparatus includes: a workpiece table; a droplet ejecting head configured to eject the droplets onto the workpiece placed on the workpiece table; a movement mechanism configured to relatively move the workpiece table and the droplet ejecting head in a main scanning direction and a sub-scanning direction; and a control unit configured to: detect a position of the workpiece or a position of the workpiece table while relatively moving the workpiece table and the droplet ejecting head along a plurality of scanning lines extending in the main scanning direction and set side by side in the sub-scanning direction; and create, based on a detection result, a correction table that indicates a correlation between a position of the movement mechanism and a positional correction amount of the workpiece table.

A recording device includes a recorder, a placement portion, an adjustment mechanism, a movement mechanism, a medium detector, an input portion, and a notification portion. The recorder performs a first operation of moving the placement portion to a first position to cause at least a portion of the placement portion to be located at a detection position, causing the medium detector to detect, at the first position, whether or not the medium is at a reference position, and causing the notification portion to notify information based on a detection result of the medium detector, and a second operation of moving the placement portion to cause an entire region of the placement portion in a second direction to pass through the detection position, causing the medium detector to detect whether or not the medium is at the reference position while the medium is passing through the detection position, and causing the notification portion to notify the information based on the detection result of the medium detector.

A recording device includes a recorder, a placement portion, an adjustment mechanism, a movement mechanism, a medium detector, an input portion, a notification portion, and storage. The recorder performs a positional information notification operation of causing the notification portion to notify positional information of the placement portion in a first direction based on identification information of a medium input by the input portion and correspondence information stored in the storage, and a detection result notification operation including moving the placement portion so that an entire region in the second direction of the placement portion passes through a detection position, causing the medium detector to detect whether the medium is located at a reference position during when the medium is passing through the detection position, and causing the notification portion to notify information based on a result of the detection by the medium detector.

A modular pallet for a textile printing machine, to hold textile products of different shapes and sizes to allow for effective printing on the products, the modular pallet having two parts, a first part which is fixed to the printing machine and is designed for removably fitting a second, modular part. The second part is made up of a range of exchangeable parts which are shaped and configured for different textile products. Each exchangeable part is able to fit into the first part, so that the pallet can be modified for printing different textile products.

A modular pallet for a textile printing machine, to hold textile products of different shapes and sizes to allow for effective printing on the products, the modular pallet having two parts, a first part which is fixed to the printing machine and is designed for removably fitting a second, modular part. The second part is made up of a range of exchangeable parts which are shaped and configured for different textile products. Each exchangeable part is able to fit into the first part, so that the pallet can be modified for printing different textile products.