Curl Correction Mechanism

There is a curl reduction mechanism at the fusing exit.

Curling is reduced by bending the paper in the reverse direction of the curl created at the fusing nip and forcibly adding resilience using the fusing exit roller [B], fusing exit driven roller [C], and fusing junction gate [A], located at the fusing nip exit.

The fusing junction gate is retracted for duplex printing/thick paper to prevent image smearing.

Drive

The fusing junction gate [C] is rotated via the arm [B] by turning ON the fusing exit drive solenoid [A] located on the main machine side.

When the solenoid is ON, the fusing junction gate is at the 'no curl correction' position.

When the solenoid is OFF, it is put in the 'continuous curl correction' position by spring [A].

Availability of curl correction by print mode

For duplex printing, or using thick paper, the fusing junction gate is retracted to prevent image smearing.

: Curl corrected (one-side printing only)

-: Curl not corrected

	Thin Paper	Plain Paper 1	Plain Paper 2	Middle Thick	Thick Paper 1	Thick Paper 2	Thick Paper 3	Thick Paper 4
Normal Paper				-	-	-	-	-
Recycled Paper				-	-	-	-	-
Color Paper				-	-	-	-	-
Special Paper 1				-	-	-	-	-
Special Paper 2				-	-	-	-	-
Special Paper 3				-	-	-	-	-
Letterhead				-	-	-	-	-
Preprinted Paper				-	-	-	-	-
Bond Paper				-	-	-	-	-
Cardstock				-	-	-	-	-
OHP (Transparency)	-	-	-	-	-	-	-	-
Label Paper				-	-	-	-	-
Coated: Matte	-	-	-	-	-	-	-	-
Envelopes	-	-	-	-	-	-	-	-
Coated: Glossy	-	-	-	-	-	-	-	-

SP1-907-096 (Operation Setting: Fusing Exit SOL Setting)

By changing SP1-907-096, the curl correction mechanism can be enabled regardless of the paper setting.

If the fusing exit drive solenoid is ON, the curl correction function is OFF.

If the fusing exit drive solenoid is OFF, the curl correction function is ON.

For duplex printing, or printing to the 4-bin mailbox, always no curl correction regardless of the SP setting, because the fusing junction gate would interfere with the paper feed path.