A printer for printing images, comprising - a set of storage holders for housing consumables used for printing images, each storage holder provided with a detector for detecting a status of the storage holder; - a proximity sensor arranged for measuring a distance (41, 42) from the printer to at least one wearable (51, 52) associated with an operator for maintaining a condition of the consumables present in the set of storage holders; - a controller configured to select the operator based on the measured distance (41, 42) from the printer to the at least one wearable (51, 52), to check whether or not a task is assigned to the operator to abolish the status of a storage holder of the set of storage holders, and in case of a positive check, to process the status of the storage holder, and to transmit, when the status of the storage holder corresponds to a predetermined threshold, a signal to the wearable (51, 52) associated with the selected operator, the signal corresponding to the task for the operator to abolish the status of the storage holder, wherein the printer comprises a timer configured for timing a duration of a period from a first time point at which the signal corresponding to the task for the operator to abolish the status of the storage holder is transmitted to the wearable (51, 52) associated with the selected operator, and wherein the controller is configured to compare the duration with a predetermined period corresponding to the task for the operator to abolish the status of the storage holder, and to transmit, when the duration of the period exceeds the predetermined period, a warning signal to the wearable (51, 52) associated with the selected operator, wherein the controller is configured to record the duration of the period from the first time point to a second time point at which the proximity sensor measures that the wearable (51, 52) of the selected operator passes a predetermined minimum distance (41, 42) for a corresponding task, a calculator is arranged for calculating an average duration of the period from the first time point to the second time point, and wherein the controller is configured to adapt the predetermined period according to the average duration of the period calculated by the calculator. - a set of storage holders for housing consumables used for printing images, each storage holder provided with a detector for detecting a status of the storage holder; - a proximity sensor arranged for measuring a distance (41, 42) from the printer to at least one wearable (51, 52) associated with an operator for maintaining a condition of the consumables present in the set of storage holders; - a controller configured to select the operator based on the measured distance (41, 42) from the printer to the at least one wearable (51, 52), to check whether or not a task is assigned to the operator to abolish the status of a storage holder of the set of storage holders, and in case of a positive check, to process the status of the storage holder, and to transmit, when the status of the storage holder corresponds to a predetermined threshold, a signal to the wearable (51, 52) associated with the selected operator, the signal corresponding to the task for the operator to abolish the status of the storage holder, wherein the printer comprises a timer configured for timing a duration of a period from a first time point at which the signal corresponding to the task for the operator to abolish the status of the storage holder is transmitted to the wearable (51, 52) associated with the selected operator, and wherein the controller is configured to compare the duration with a predetermined period corresponding to the task for the operator to abolish the status of the storage holder, and to transmit, when the duration of the period exceeds the predetermined period, a warning signal to the wearable (51, 52) associated with the selected operator, wherein the controller is configured to record the duration of the period from the first time point to a second time point at which the proximity sensor measures that the wearable (51, 52) of the selected operator passes a predetermined minimum distance (41, 42) for a corresponding task, a calculator is arranged for calculating an average duration of the period from the first time point to the second time point, and wherein the controller is configured to adapt the predetermined period according to the average duration of the period calculated by the calculator.