A scale and scanner system includes a controller to control operation of the scale and scanner system. A scale calibration parameter memory for storing scale calibration parameters is coupleable to the controller. A scanning module and a scale module are coupleable to the controller. When the controller is not coupled to the scanning module or scale module, the scale calibration parameter memory remains in the system.

A scale and scanner system includes a controller to control operation of the scale and scanner system. A scale calibration parameter memory for storing scale calibration parameters is coupleable to the controller. A scanning module and a scale module are coupleable to the controller. When the controller is not coupled to the scanning module or scale module, the scale calibration parameter memory remains in the system.

A scale and scanner system includes a controller to control operation of the scale and scanner system. A scale calibration parameter memory for storing scale calibration parameters is coupleable to the controller. A scanning module and a scale module are coupleable to the controller. When the controller is not coupled to the scanning module or scale module, the scale calibration parameter memory remains in the system.

An image controller of an image forming apparatus is configured to generate a light emission signal for detection for forming light emission for detection, and transmit the light emission signal for detection to a laser controller through a flexible flat cable, and the laser controller is configured to cause a semiconductor laser to emit light in accordance with the light emission signal for detection, and determine, based on a PD signal output from a PD that has received a light beam, whether improper connection has occurred in the flexible flat cable.

An image controller of an image forming apparatus is configured to generate a light emission signal for detection for forming light emission for detection, and transmit the light emission signal for detection to a laser controller through a flexible flat cable, and the laser controller is configured to cause a semiconductor laser to emit light in accordance with the light emission signal for detection, and determine, based on a PD signal output from a PD that has received a light beam, whether improper connection has occurred in the flexible flat cable.

Examples are disclosed that relate to a resonant scanning mirror system comprising a mirror structure mounted to a frame via an adhesive. One example provides a resonant scanning mirror system comprising a frame defining a perimeter around a space, the frame including a mirror mounting portion having an opening. The mirror system also comprises a mirror structure spanning the space, the mirror structure having an oscillating mirror portion and a foot, the foot being attached to the mirror mounting portion with an adhesive and being positioned such that a location of the opening in the mirror mounting portion at least partially defines a location of an edge of a fillet of the adhesive where the adhesive meets the foot of the mirror structure.

Examples are disclosed that relate to a resonant scanning mirror system comprising a mirror structure mounted to a frame via an adhesive. One example provides a resonant scanning mirror system comprising a frame defining a perimeter around a space, the frame including a mirror mounting portion having an opening. The mirror system also comprises a mirror structure spanning the space, the mirror structure having an oscillating mirror portion and a foot, the foot being attached to the mirror mounting portion with an adhesive and being positioned such that a location of the opening in the mirror mounting portion at least partially defines a location of an edge of a fillet of the adhesive where the adhesive meets the foot of the mirror structure.

To provide an optical scanning device including a lower housing including an opened upper part, an upper housing that covers the upper part of the lower housing, and an f lens on which a beam reflected by a rotating polygon mirror is incident. The lower housing includes a raised area being raised upward from a lower housing bottom surface. The f lens is mounted to face a bottom side of the raised area.

To provide an optical scanning device including a lower housing including an opened upper part, an upper housing that covers the upper part of the lower housing, and an f lens on which a beam reflected by a rotating polygon mirror is incident. The lower housing includes a raised area being raised upward from a lower housing bottom surface. The f lens is mounted to face a bottom side of the raised area.

The present invention relates to a head device of a three-dimensional modelling equipment, and a modelling plane scanning method using the same, the head device of a three-dimensional modelling equipment comprising: a modelling light source array having a plurality of modelling light sources; a light guide part, installed at a given position above a modelling plane, having a function of reflecting modelling rays from the modelling light source array so as to be incident on the modelling plane; and a controller for controlling the operations of the modelling light source array and the light guide part in a conjoined manner, wherein a plurality of modelling rays generated from the plurality of modelling light sources are irradiated while forming one line scan having a first axial direction on the modelling plane, and the light guide part continuously or intermittently moves the one line scan on the modelling plane to irradiate the modelling light rays across the modelling plane. The present invention has the effects of enabling high-speed scanning to be performed, and modelling precision to be enhanced through precise scanning control.