The transfer belt contact motor [B] turns the CMY contact cam shaft [C] when the machine starts to make
a color print. The CMY contact cams slide the right and left sliders [D] and these sliders lift the belt transfer
rollers for each OPC drum (CMY) to the transfer belt. Because of this mechanism, the life of the transfer
belt is longer (it is not necessary for the transfer belt to touch the color OPC drums when the machine makes
a black and white print). However, if the customer selects "Off" with the "ACS" setting, the four OPC drums
always touch the image transfer belt.
The ITB (image transfer belt) contact sensor [E] detects if the image transfer rollers for each OPC drum
(CMY) touch the transfer belt. If they do not touch the transfer belt during color printing, the machine stops
and shows SC 445, 446, or 447.
ITB (Image Transfer Belt) Cleaning Unit
The ITB cleaning blade [A] in the cleaning unit removes remaining toner on the image transfer belt after
image transfer to the paper. The toner collection coil [B] moves the collected waste toner to the outlet for
the waste toner bottle.
The ITB cleaning unit has a shutter mechanism at the outlet for the waste toner bottle. When the ITB unit is
removed, the shutter closes the outlet to prevent waste toner from falling.
6. Detailed Section Descriptions
190
6
Summary of Contents for PE-MF1
Page 11: ...10...
Page 15: ...1 Installation 14 1...
Page 17: ...2 Preventive Maintenance 16 2...
Page 24: ...6 Release the belt B 7 Front cover unit C x 4 Exterior Covers 23 3...
Page 34: ...4 Color AIO motor C x 3 AIO Cartridge 33 3...
Page 48: ...4 Registration clutch A x 1 Paper Transfer 47 3...
Page 56: ...4 Paper end sensor assembly A x 1 5 Paper end sensor B hooks Paper Feed 55 3...
Page 59: ...4 Paper exit sensor B hooks x 1 3 Replacement and Adjustment 58 3...
Page 88: ...3 ADF drive board A all s hooks ADF 87 3...
Page 113: ...4 Troubleshooting 112 4...
Page 161: ...Paper Path 6 Detailed Section Descriptions 160 6...
Page 223: ...MEMO 222...
Page 224: ...MEMO 223...
Page 225: ...MEMO 224...