Ricoh MP C307

9
Fuse Location .................................................................................................................................................. 520
Other Troubleshooting ......................................................................................................................................... 522
When You Cannot Open the Right Door ........................................................................................................ 522
When Fluorescent or LED Lamps Flicker ...................................................................................................... 524
When Abnormal Noise Occurs ....................................................................................................................... 525
7. Detailed Descriptions ......................................................................................................................................... 528
Differences between MP C307/C407 and C306/C406 ....................................................................................... 528
ADF Unit ............................................................................................................................................................. 531
Overview ......................................................................................................................................................... 531
Original Transport Drive ................................................................................................................................. 532
Original Set Detection ..................................................................................................................................... 533
Original Transport Path ................................................................................................................................... 533
Double-feed Detection (Optional)................................................................................................................... 535
Scanner Unit ........................................................................................................................................................ 537
Overview ......................................................................................................................................................... 537
Light Source and Exposure ............................................................................................................................. 537
Scanner Carriage Drive ................................................................................................................................... 538
Improved Tolerance to Black Lines When Paper Passes through ADF ......................................................... 539
Laser Unit ............................................................................................................................................................ 541
Overview ......................................................................................................................................................... 541
Laser Synchronizing System ........................................................................................................................... 542
Line Scanning Mechanism .............................................................................................................................. 543
Image Skew Adjustment ................................................................................................................................. 543
Dust Shield Glass ............................................................................................................................................ 544
LD Safety Switch ............................................................................................................................................ 544
PCDU ................................................................................................................................................................... 546
Overview ......................................................................................................................................................... 546
OPC Drum ....................................................................................................................................................... 547
Development Unit ........................................................................................................................................... 549
Drum/Development Drive ............................................................................................................................... 550
Toner Supply Section .......................................................................................................................................... 551
Overview ......................................................................................................................................................... 551
Toner Supply and Transport Mechanism ........................................................................................................ 552
Toner Bottle Set Sensor Mechanism ............................................................................................................... 553
Toner Near End and Toner End ...................................................................................................................... 553
Toner Supply Unit ........................................................................................................................................... 554
ID Chip ............................................................................................................................................................ 554
Waste Toner Collection ....................................................................................................................................... 556
Waste Toner Transport Mechanism ................................................................................................................ 556