Initiating a shortage model

Example implementations relate to initiation of a shortage model in a printing device. For example, initiation of a shortage model may include guidance of a page of print media through a printing device by a feedshaft and an upper paper guide, where the page of print media is held by a media control surface. A shortage model may be initiated based on an amount of data to be printed. An ink nozzlemay be turned off based on the initiated shortage model. 示例实施方式涉及在打印设备中启动短缺模式。例如，启动短缺模式可以包括通过进给轴和上部纸张引导件引导打印介质页通过打印设备，其中打印介质页由介质控制表面保持。短缺模式可以基于待打印的数据量来启动。可以基于启动的短缺模式关闭墨喷嘴。