Toshiba FC-22 manual Automatic Initialization of Image Quality Control

1.5 Automatic Initialization of Image Quality Control

(1)At the time of unpacking

Prior to copy-image dimensional adjustment, perform the 05-879 “Automatic initialization of image quality control” procedure.

(2)When any of the following parts is replaced, be sure to perform the 05-879 “Automatic initialization of image quality control” procedure.

• Processing unit	• Transfer belt unit	• Photoconductive drum
• Laser optical unit	• Image quality sensor	• Developer material

Note: When performing automatic adjustment of gamma correction in addition, “Automatic initialization of

image quality control” should be done first.

(3)When performing automatic adjustment of gamma correction in cases other than the above ones, do the 05-878 “Forced performing of image quality control” procedure before automatic gamma value correction.

Code	Adjustment item		Content
878	Forced performing of	<Procedure>
	image quality control	(1)	While pressing [0] and [5] simultaneously, turn the power ON. n
			Adjustment mode
		(2)	Input [878] with digital keys and press [START].
		(3)	When the adjustment finishes normally, the copier will return to
			the adjustment mode’s initial state.
			If an abnormal condition has occurred, take appropriate action by
			referring to “4. TROUBLESHOOTING”.
879	Automatic initialization of	<Procedure>
	image quality control	(1)	While pressing [0] and [5] simultaneously, turn the power ON. n
			Adjustment mode
		(2)	Input [879] with digital keys and press [START].
		(3)	When the adjustment finishes normally, the copier will return to
			the adjustment mode’s initial state.
			If an abnormal condition has occurred, take appropriate action by
			referring to “4. TROUBLESHOOTING”.

FC-22 ADJUSTMENT 1 - 50 January 2000 © TOSHIBA TEC