Image forming apparatus, preview display method therefor, and recording medium

A preview display method for an image forming apparatus, comprising:

• customizing a key selection screen with one or more than one operation key to enable a feature of the image forming apparatus, being thereon, according to a user operation, so that at least one of the operation keys will not appear thereon;
• obtaining information of a key selection screen customized on a different image forming apparatus or information of another key selection screen previously customized on the image forming apparatus;
• making a display portion display the customized key selection screen according to the obtained information;
• and
• comparing second features currently installed on the image forming apparatus to first features installed on the image forming apparatus originally before the customization or to first features installed on the different image forming apparatus, and
• wherein if it is judged based on the comparison results that the second features include one or more than one feature of the print function, not included in the first features, the display portion indicates that there is a new feature having been installed on the image forming apparatus while displaying a preview image of print data to be outputted.

A non-transitory computer-readable recording medium having a preview display program stored thereon to make a computer execute:

• customizing a key selection screen with one or more than one operation key to enable a feature of the image forming apparatus, being thereon, according to a user operation, so that at least one of the operation keys will not appear thereon;
• obtaining information of a key selection screen customized on a different image forming apparatus or information of another key selection screen previously customized on the image forming apparatus;
• making a display portion display the customized key selection screen according to the obtained information;
• and
• comparing second features currently installed on the image forming apparatus to first features installed on the image forming apparatus originally before the customization or to first features installed on the different image forming apparatus, and
• wherein if it is judged based on the comparison results that the second features include one or more than one feature of the print function, not included in the first features, the display portion indicates that there is a new feature having been installed on the image forming apparatus while displaying a preview image of print data to be outputted.