Media size sense system and firmware algorithm for an image formation device

An image formation device having a media size sensing system for preventing incorrect media size selection, the image formation device comprising:

• a media storage area for storing media, the media storage area having at least one adjustable media guide disposed thereon, and at least one sensor associated with the adjustable media guide to determine a position of the at least one adjustable media guide;
• a media size sensing routine or circuit that converts a position signal received from the at least one sensor into a value corresponding to a dimension of the print media;
• and
• a media size comparing routine or circuit that compares the value to a plurality of predetermined groups of media having respective ranges of width dimensions, determines a predetermined group of media having a dimension within a certain range of the value, determines whether the image formation device performs a function based on the comparison of the value to the predetermined group of media, determines a number of media in a predetermined group of media having a width dimension within a predetermined range of the converted value;
• determines whether the at least one side guide has been located at a current position previously when there are two or more media in the predetermined group of media;
• determines whether a metric measurement default is in an ON or an OFF position;
• and selects from the predetermined group of media a most frequently selected print media having a metric measurement when the metric measurement is in the ON position.

An image formation device, comprising:

• a controller that controls:
• detecting a width dimension of print media disposed in the image formation device by a position of at least one side guide;
• converting the position of the at least one side guide to a value corresponding to the width dimension of the print media;
• comparing the converted value to a plurality of predetermined groups of media having respective ranges of width dimensions;
• determining a number of media in a predetermined group of media having a width dimension within a predetermined range of the converted value;
• determining whether the at least one side guide has been located at a current position previously when there are two or more media in the predetermined group of media;
• determining whether a metric measurement default is in an ON or an OFF position;
• selecting from the predetermined group of media a most frequently selected print media having a metric measurement when the metric measurement is in the ON position;
• and
• determining whether the image formation device performs a function based on the comparison of the converted value to the predetermined group of media.

A computer readable medium containing a computer program for enabling the prevention of incorrect media size selection in an image formation device, the computer program comprising instructions to:

• detect a width dimension of print media disposed in the image formation device by a position of at least one side guide;
• convert the position of the at least one side guide to a value corresponding to the width dimension of the print media;
• compare the converted value to a plurality of predetermined groups of media having respective ranges of width dimensions and determine a predetermined group of media having a width dimension within a predetermined range of the converted value;
• determine whether the image formation device performs a function based on the comparison of the converted value to the predetermined group of media;
• determine a number of media in the predetermined group of media having a width dimension within a predetermined range of the converted value;
• determine whether the at least one side guide has been located at a current position previously when there are two or more media in the predetermined group of media;
• determine whether a metric measurement default is in an ON or an OFF position;
• select from the predetermined group of media a most frequently selected print media having a metric measurement when the metric measurement is in the ON position;
• compare a required print media width dimension to the converted value;
• and
• execute a print request of the image file based on a comparison between the required print media width dimension of the image file and the converted value.