Konica Minolta A00F011 Service Manual - Page 111
Fusing roller drive control, Fusing speed switching control, Fusing speed control control of loop
View all Konica Minolta A00F011 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 111 highlights
magicolor 4650EN magicolor 4650DN 20. Fusing section 20.2 Drive Theory of operation Ver.1.0 Nov. 2007 Pressure belt Composition/Operation Fusing roller Fusing motor (M4) A011T2C543AA 20.3 Operation 20.3.1 Fusing roller drive control A. Fusing speed switching control • The fusing motor provides drive for the fusing section. • To prevent poor fusing performance, the fusing speed is changed in two steps according to the paper type. Fusing speed Plain paper (mm/s) 144 Thick paper, envelops, gloss paper, OHP (mm/s) 72 B. Fusing speed control (control of loop before fusing) • To prevent double transferred images and brush effects from occurring, the difference between the fusing speed and the media conveyance speed during image transfer is corrected. • The media loop sensor detects the length of the loop formed in the media between the 2nd transfer roller and the fusing pressure roller. The fusing speed is then varied according to the length of the loop detected. By varying the fusing speed, paper is prevented from being misfed or contacting the charge neutralizing cloth. No loop control is provided to perform the fusing process when envelopes are used (to prevent wrinkles). 76