Konica Minolta bizhub C658 Service Manual page 1970

bizhub C658/C558/C458/C368/C308/C258
[1] Registration motor (M3)
[3] Registration roller
[5] Document reading roller/2
3.4.2 Switching mechanism for document switchback/exit
(1) Document switchback section
• The switchback path switching guide film provides a route toward the switchback path.
• In the 2-sided mode, the document switchback exit roller is rotated backward. This allows the trailing edge of the original to move along
the upper side of the switchback path switching guide film to be fed to the switchback path, so that the original is fed to the registration
roller.
• The switchback path switching guide film is fixed at all times.
[3]
[5]
[1] Document switchback exit roller
[3] Registration roller
3.4.3 Switchback exit roll pressure/retraction control
• Operation of the document exit roller release solenoid causes the lever to be pushed down and the document exit roll to be lowered, so that
the document exit roll is spaced away from the document exit roller.
• This spacing operation is performed during switchback for reading of the back side of the originals and for putting pages in numerical order
in the 2-sided mode.
[1]
[1] Document switchback exit roller
[3] Lever
3.4.4 Faxed document stamp function
• Mounting optional "Stamp unit SP-501" allows a stamp to be placed on a faxed document.
• The stamp solenoid located upstream of the document exit roller is energized when the original is about to be fed out and the stamp
mounted on the solenoid plunger is pressed against the surface of the original. This places a faxed mark (+) on the surface of the original.
• This function is enabled when "System2/Stamp/Set*1 (default setting: Unset)" is turned ON using the Service Mode and the user selects
"Application/TX Stamp*2 (default setting: OFF)" on the "Scan/Fax" screen.
• This function is not used for "Copy" or "Scan".
[2]
[1]
[4]
[2] [3]
PB THEORY OF OPERATION DF-629 > 3. OPERATION
[2] Document reading motor (M1)
[4] Document reading roller/1
[6] Document switchback exit roller
[2] Switchback path switching guide film
- -
[2] Document exit roll
[4] Document exit roller release solenoid (SD1)
PB-13