1. An image forming method comprising: storing a job ticket for specifying an output condition into a first job ticket storing area of a storage section equipped in an image forming apparatus, the output condition being specified for outputting image data onto an output medium; editing the job ticket stored in the first job ticket storing area by using an operation section equipped in the image forming apparatus; when a request for editing the job ticket is received from a remote operation apparatus connected to the image forming apparatus, reading out the job ticket from the first job ticket storing area and writing the read job ticket into a second job ticket storing area in the storage section, the second job ticket storing area being configured to store the job ticket capable of being edited only by the remote operation apparatus; allowing the remote operation apparatus to exclusively edit the job ticket stored in the second job ticket storing area; reading out, when a request for saving the job ticket is received from the remote operation apparatus, the job ticket edited by the remote operation apparatus from the second job ticket storing area and writing the read job ticket into the first job ticket storing area; and outputting the image data onto the output medium by applying the job ticket edited by using the operation section and/or by applying the job ticket edited by using the remote operation apparatus.