1. A print control device comprising; a processor; and a memory including instructions that, when executed by the processor, cause the processor to perform operations including: acquiring print job information for causing a print output device to print an image, the print job information including a print job and a print setting information required for execution of the print job; determining whether to execute a preflight processing for checking the print job, based on the print setting information and a condition information specifying a condition for executing the preflight processing; upon determining to execute the preflight processing, executing the preflight processing and then generating print output information for printing the image on a print sheet based on the print job information; upon determining not to execute the preflight processing, generating the print output information based on the print job information without executing the preflight processing; and outputting the generated print output information to the print output device wherein the print control device further comprises a storage configured to store a plurality of pieces of the condition information and priority numbers respectively associated with the plurality of pieces of the condition information, and wherein the operations include: selecting one of the plurality of pieces of the condition information stored in the storage depending on the priority numbers, and determining whether to execute the preflight processing based on the print setting information and the selected piece of the condition information wherein the plurality of pieces of the condition information specify at least one of: a condition that a total number of pages of print sheets to be produced based on the print job information is less than a reference page number, and an indication of whether preflight processing is to be performed when said condition is satisfied; a condition that no imposition processing is to be executed, and an indication of whether preflight processing is to be performed when said condition is satisfied; a condition that imposition processing is to be executed, and an indication of whether preflight processing is to be performed when said condition is satisfied; and a condition that an alternative font is to be used as a substitute for a font used to express characters included in the print job information, and an indication of whether preflight processing is to be performed when said condition is satisfied.