Half-Folding Mechanism - Konica Minolta Bizhub 501 Service Manual

5. OPERATIONS
5.5

Half-folding mechanism

• The Entrance Sensor (PS4) [2] of FS detects the trailing edge of the paper.
• The paper feed amount is determined for each paper size as counted from the timing when
the trailing edge is detected. Half-folding is effected as follows. Specifically, the paper under-
goes a switchback operation and is conveyed to the half-folding position as the motor is
turned backward.
• The Half-Folding Blade [3] is lowered and the center of the paper is pinched between the
Folding Rollers and this creates a crease in the paper.
• After the half-folding, the paper is conveyed by the Conveyance Roller [7] and then the Reg-
istration Roller [1] as they are driven in that order.
[5]
[1] Registration Roller
[2] Entrance Sensor (PS4)
[3] Half-Folding Blade
[4] Folding Roller Home Sensor (PS22)
10
[3]
[6]
[4]
Theory of Operation Ver.1.0 May. 2008
[7]
[3]
[5] Folding Motor (M10)
[6] Conveyance Sensor (PS5)
[7] Conveyance Roller
[1]
[2]
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