Second Transfer Mechanism; Second Transfer Control - Develop ineo+ 6500 Service Manual

Theory of Operation Ver1.0 Sep.2006
11.3.3

Second transfer mechanism

• The cam [5] is rotated by the second transfer pressure/release motor (M34).
• When the cam pushes the pressure arm [6], the second transfer roller /Lw [7] is pushed up and pressed to
the transfer belt unit [4].
• Pressure can be selected from "Normal [2]" or "Low [3]". (If the image failure (transfer failure) occurs when
printing onto thick papers, select "Low".)
• Pressure can also be selected from the paper setting in the basic screen by setting "1" for DipSW1-0.
• When the cam further rotates, the pressure to the pressure arm is released and the second transfer roller /
Lw comes down to be released from the transfer belt unit [1].
[1] Released
[2] Pressed (Normal)
[3] Pressed (Low)
[4] Transfer belt unit
11.3.4

Second transfer control

A. Second transfer operation
• The toner on the transfer belt is transferred onto paper when the paper is conveyed in between the transfer
belt and the second transfer roller /Lw.
B. Second transfer roller /Up DC bias
The DC bias for the second transfer roller changes depending on the following conditions:
• Process speed
• Black-and-white mode or color mode
• Humidity
• Type of paper
• Front side or back side of paper
C. Operation timing
Refer to "9.3.1 Image creation
(See P.43)
[7]
[6]
[1]
control".
11. INTERMIDIATE TRANSFER SECTION
[4]
[5]
[2]
[5] Cam
[6] Pressure arm
[7] Second transfer roller /Lw
[3]
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