A fixing device comprising: a fixing rotator; a pressure rotator to contact the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium bearing a toner image is conveyed; and a cleaning device to clean a surface of at least one of the fixing rotator and the pressure rotator, the cleaning device including: a device housing; a cleaning web to slide over the at least one of the fixing rotator and the pressure rotator to clean the surface of the at least one of the fixing rotator and the pressure rotator; a web holder to hold and send out the cleaning web; a winder to wind the cleaning web; a cleaning pressure rotator to press the cleaning web against the at least one of the fixing rotator and the pressure rotator; a pressure applier to press against the cleaning web along a width direction of the cleaning web perpendicular to a direction in which the cleaning web is wound, a pressure holder projecting beyond an end portion of the pressure applier in a width direction of the pressure applier parallel to the width direction of the cleaning web to hold the pressure applier; and characterized by a temporary holder to temporarily hold the pressure applier, wherein the temporary holder includes: a square hole formed in a first end portion of the pressure holder and having a step portion; a convex portion formed in the device housing and engageable with the square hole; a rod formed in a second end portion of the pressure holder and projecting in a width direction of the pressure holder parallel to the width direction of the cleaning web; and a hole, formed in the device housing, into which the rod is insertable. a fixing rotator; a pressure rotator to contact the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium bearing a toner image is conveyed; and a cleaning device to clean a surface of at least one of the fixing rotator and the pressure rotator, a device housing; a cleaning web to slide over the at least one of the fixing rotator and the pressure rotator to clean the surface of the at least one of the fixing rotator and the pressure rotator; a web holder to hold and send out the cleaning web; a winder to wind the cleaning web; a cleaning pressure rotator to press the cleaning web against the at least one of the fixing rotator and the pressure rotator; a pressure applier to press against the cleaning web along a width direction of the cleaning web perpendicular to a direction in which the cleaning web is wound, a pressure holder projecting beyond an end portion of the pressure applier in a width direction of the pressure applier parallel to the width direction of the cleaning web to hold the pressure applier; and characterized by a temporary holder to temporarily hold the pressure applier, wherein the temporary holder includes: a square hole formed in a first end portion of the pressure holder and having a step portion; a convex portion formed in the device housing and engageable with the square hole; a rod formed in a second end portion of the pressure holder and projecting in a width direction of the pressure holder parallel to the width direction of the cleaning web; and a hole, formed in the device housing, into which the rod is insertable. a cleaning web to slide over the at least one of the fixing rotator and the pressure rotator to clean the surface of the at least one of the fixing rotator and the pressure rotator; a web holder to hold and send out the cleaning web; a winder to wind the cleaning web; a cleaning pressure rotator to press the cleaning web against the at least one of the fixing rotator and the pressure rotator; a pressure applier to press against the cleaning web along a width direction of the cleaning web perpendicular to a direction in which the cleaning web is wound, a pressure holder projecting beyond an end portion of the pressure applier in a width direction of the pressure applier parallel to the width direction of the cleaning web to hold the pressure applier; and characterized by a temporary holder to temporarily hold the pressure applier, wherein the temporary holder includes: a square hole formed in a first end portion of the pressure holder and having a step portion; a convex portion formed in the device housing and engageable with the square hole; a rod formed in a second end portion of the pressure holder and projecting in a width direction of the pressure holder parallel to the width direction of the cleaning web; and a hole, formed in the device housing, into which the rod is insertable. a square hole formed in a first end portion of the pressure holder and having a step portion; a convex portion formed in the device housing and engageable with the square hole; a rod formed in a second end portion of the pressure holder and projecting in a width direction of the pressure holder parallel to the width direction of the cleaning web; and a hole, formed in the device housing, into which the rod is insertable.