An inkjet printing apparatus includes a print head including a plurality of nozzles, a cap, and a storing unit, and a control unit. The control unit controls the print head to start and perform an intra-standby preliminary discharge operation where a preliminary discharge operation to discharge ink into a cap is performed at predetermined time intervals during a standby period after the print head finishes a printing operation to print an image, continue the intra-standby preliminary discharge operation if an accumulated value of an amount of ink stored in a storing unit during the preliminary discharge operation is not greater than a threshold value, stop the intra-standby preliminary discharge operation if the stored accumulated value of the amount of ink is greater than the threshold value, and bring the print head into contact with the cap and terminating the standby period if the standby period exceeds a predetermined time period.

An image processing apparatus configured to perform processing according to a job includes a detection unit configured to detect a change in job information which is information related to the job, and a generation unit configured to generate a log related to the processing of the job. in a condition that the job includes a plurality of pages, in a case where the change in the job information is not detected by the detection unit, the generation unit generates one log with the job as a unit and in a case where the change in the job information is detected by the detection unit, the generation unit generates a log even during the job based on job information before the change.

An image forming apparatus, having a cartridge detachably attached to the image forming apparatus and including a first compartment configured to store a colorant, a container configured to be connected with the cartridge and including a second compartment configured to store the colorant flowing from the cartridge, and a display configured to display a first object indicating a first remainder amount and a second object indicating a second remainder amount in a single screen, is provided. The first remainder amount is a remainder amount of the colorant stored in the first compartment, and the second remainder amount is a remainder amount of the colorant stored in the second compartment.

A liquid discharge apparatus includes a case receiving a cartridge, a tank, a head, and a controller to: when the cartridge is installed in the case, calculate an outflow amount Qc based on heights Hc, Hs and flow path resistances; read the amounts Vc, Vs from a memory; subtract the outflow amount Qc from the read liquid amount Vc to calculate new liquid amount Vc; add the outflow amount Qc to the read liquid amount Vs to calculate new liquid amount Vs; store the calculated liquid amounts Vc, Vs in the memory; after a time period from at the time the calculated liquid amounts Vc, Vs stored elapses, again calculate the outflow amount Qc and the liquid amounts Vc, Vs and store the calculated liquid amounts Vc, Vs in the memory.

A liquid discharge apparatus is configured to activate a first notification in a case where a liquid level of a tank is less than a threshold. In a case where a cartridge is installed after activating the first notification, a controller determines outflow amount Vcs of the liquid flowing into the tank based on the liquid amount of the installed cartridge, and controls a notification device based on the determined outflow amount Vcs.

A method for responding to read/write consumable volume information in an imaging device. The method includes: receiving first consumable volume information from the imaging device and storing the received first consumable volume information; receiving second consumable volume information from the imaging device; obtaining, by the imaging cartridge chip, the first consumable volume information and transmitting the first consumable volume information to the imaging device when the imaging device requests reading consumable volume information stored in the imaging cartridge chip for determining a remaining consumable volume in an cartridge; obtaining, by the cartridge chip, the second consumable volume information and transmitting the second consumable volume information to the imaging device when the imaging device requests reading consumable volume information stored in the imaging cartridge chip to indicate the remaining consumable volume in the cartridge, the second consumable volume information being less accurate than the first consumable volume information.

An image forming apparatus, having a first container with a first compartment, a second container with a second compartment, a recorder, a display, and a controller, is provided. The controller controls the display to display a first screen and a second screen. The first screen contains a first object having a form that reflects an amount of a colorant in the first compartment and a second object having a form that reflects an amount of the colorant in the second compartment. The second screen contains a third object having a form that reflects one of the amount of the colorant in the first compartment, the amount of the colorant in the second compartment, and a total amount of the colorant in the first compartment and the second compartment.

Certain examples relate to mixing and/or supply cartridges for printing apparatus. One example implementation includes a reservoir to receive printing material from a printing apparatus and to return the received printing material to the printing apparatus. A storage medium stores a reservoir printing material level parameter indicative of the amount of printing material in the reservoir; a recirculation cycle counter indicative of the number of recirculation events experienced by the cartridge; a maximum recirculation cycle parameter indicative of the maximum number of recirculation events that may be experienced by the cartridge.

An Imaging device includes a print monitoring engine to monitor an ink level of an ink cartridge installed in the imaging device and track a print count for each ink level. The print count for each ink level indicates a number of prints printed during a one percent drop in the ink level. Further, a print capacity estimation engine is to determine an average print rate for the ink cartridge based on the print count for each one percent drop in ink level and determine a print capacity estimate of the ink cartridge based at least on the average print rate and the current ink level. Further, an Ink cartridge controlling engine is to deactivate the ink cartridge upon occurrence of a predetermined event and activate the deactivated ink cartridge in response to an activation input from a user, wherein the activation input is based on the print capacity estimate.

In an image-recording device, a mount body detachably holds a cartridge. The cartridge has a first chamber configured to store consumable therein. A tank is in communication with the cartridge, and the tank has a second chamber. Consumable in the first chamber is capable of moving into the second chamber. A controller determines whether a residual quantity of consumable stored in the first chamber of the cartridge held by the mount body is lower than or equal to a prescribed threshold. The controller expands, when a specific condition is satisfied, a maximum quantity of consumable up to which consumable is capable of being stored in the second chamber. The specific condition includes a first condition that the residual quantity of consumable stored in the first chamber is higher than the prescribed threshold, and a second condition that information notifying that the cartridge is to be replaced is received.