Patent ID: 9684857
Date: 2017-06-20
CPC Classifications: B41J,B42D,B65H,G06K,Y10T

Claim:
1. An image forming apparatus for outputting to a long medium having an adhesive sheet having a first adhesive side edge part and a second adhesive side edge part, the adhesive sheet temporarily adhered to a release sheet having a first release side edge part and a second release side edge part, the long medium comprising: a plurality of holes equidistantly provided on a straight line on both the first side edge part and the second side edge part in a longitudinal direction of the release sheet or all of the first adhesive side edge part and the second adhesive side edge part of the adhesive sheet and the first release side edge part and the second release side edge part of the release sheet; a plurality of first indicators repeatedly given on at least one of the first or second release side edge parts of the release sheet or all of the first adhesive side edge part and the second adhesive side edge part of the adhesive sheet and the first release side edge part and the second release side edge part of the release sheet on a straight line at spacings of an integral multiple of spacings of the plurality of holes; and a plurality of second indicators for equidistantly sectioning the plurality of holes, the plurality of second indicators are repeatedly given on at least one of the side edge parts of the release sheet or all of the first adhesive side edge part and the second adhesive side edge part of the adhesive sheet and the first release side edge part and the second release side edge part of the release sheet on a straight line different from a row of the first indicators at spacings shorter than spacings of the first indicators, wherein the plurality of holes, the plurality of first indicators, and the plurality of second indicators are provided approximately in parallel to one another, a spacing between a leading-end hole and a trailing-end hole between the pair of first indicators indicates a reference length of the long medium, the leading-end hole of the plurality of holes sectioned by the adjacent first indicators are placed on a tip side of the long medium and the trailing-end hole of the plurality of the holes sectioned by the adjacent first indicators are placed on a trailing-end side of the long medium, a first ratio of a spacing between the plurality of the holes and a unit length of the long medium and a second ratio of a difference between a spacing between the first indicators and a spacing between the second indicators and a change amount of a length of the long medium indicated by this difference are approximately equal to each other, the second indicators are provided to a side of the trailing-end holes, and each gradually come closer to the leading-end hole that pairs up with the trailing-end hole as the long medium runs toward a trailing end, a spacing between the leading-end hole and the second indicator is approximately proportional to a remaining amount of the long medium, and a change in the remaining amount is visually grasped by comparing the number of holes between the first indicator and the second indicator with the plurality of holes, the image forming apparatus comprising: first detecting sensor for detecting the first indicator of the long medium; and second detecting sensor for detecting the second indicator.