Abstract:
When a quantity of light of a liquid crystal back light falls below a predetermined value, a detecting section of an input device outputs to a first control section a failure-detected signal indicating that a failure occurred in the liquid crystal back light of an operation panel. When a touched area is inputted from a touch panel after the failure-detected signal was inputted, the first control section, referring to a failure time table, transmits setting information corresponding to a display area that includes the touched area to a second control section of an image forming apparatus.
Abstract:
One embodiment of a sheet transport apparatus is provided with a sheet transport path for transporting a sheet in a predetermined transport direction, a reflective type optical sensor in which light irradiated from a light-emitting portion to a transported sheet is reflected and reflected light from the sheet is received by a light-receiving portion to detect a presence/absence of the sheet, an irradiated light adjustment portion that adjusts a light amount of the light-emitting portion, a non-image region locating portion that detects an image state on a sheet to locate a non-image region of the sheet, and a control portion that adjusts the light amount of the light-emitting portion by controlling the irradiated light adjustment portion based on a measured value on the non-image region located by the non-image region locating portion.