Ricoh Aficio MP 4002 Service Manual

SM v D129/D130
4.6 PCDU ....................................................................................................... 4-37
4.6.1 PCDU (PHOTOCONDUCTOR AND DEVELOPMENT UNIT) ........ 4-37
Reinstallation ...................................................................................... 4-37
4.6.2 DRUM ............................................................................................. 4-38
Re-installation .................................................................................... 4-39
4.6.3 PICK-OFF PAWLS.......................................................................... 4-40
Pick-off Pawl Position Adjustment ...................................................... 4-40
4.6.4 CHARGE ROLLER AND CLEANING ROLLER .............................. 4-41
4.6.5 DRUM CLEANING BLADE ............................................................. 4-42
Re-installation .................................................................................... 4-42
4.6.6 ID SENSOR .................................................................................... 4-43
4.7 DEVELOPMENT ...................................................................................... 4-44
4.7.1 DEVELOPMENT FILTER ............................................................... 4-44
4.7.2 DEVELOPMENT ROLLER ............................................................. 4-44
Cleaning Procedure............................................................................ 4-45
4.7.3 DEVELOPER .................................................................................. 4-46
4.7.4 TD SENSOR ................................................................................... 4-49
4.8 TRANSFER .............................................................................................. 4-50
4.8.1 TRANSFER BELT UNIT ................................................................. 4-50
4.8.2 TRANSFER BELT........................................................................... 4-51
4.8.3 TONER OVERFLOW SENSOR ...................................................... 4-53
4.8.4 TRANSFER BELT CLEANING BLADE/TONER OVERFLOW SENSOR
4-53
Transfer Belt Cleaning Blade ............................................................. 4-53
Toner Overflow Sensor ...................................................................... 4-54
4.9 PAPER FEED .......................................................................................... 4-55
4.9.1 PAPER FEED UNIT ........................................................................ 4-55
Tray 1 and Tray 2 ............................................................................... 4-55
4.9.2 PICK-UP, FEED AND SEPARATION ROLLERS............................ 4-56
Tray 1 and Tray 2 ............................................................................... 4-56
4.9.3 TRAY LIFT MOTOR........................................................................ 4-57
4.9.4 RELAY, TRAY LIFT, PAPER END AND PAPER FEED SENSORS 4-58
Tray 1 and Tray 2 ............................................................................... 4-58
4.9.5 REGISTRATION SENSOR ............................................................. 4-59
Reinstall the registration sensor ......................................................... 4-60
4.10 FUSING .............................................................................................. 4-61
4.10.1 FUSING UNIT ............................................................................. 4-61
4.10.2 WEB ROLLER UNIT ................................................................... 4-62

Ricoh Aficio MP 4002 Specifications

General

Print Resolution	600 x 600 dpi
Copy Resolution	600 x 600 dpi
Duplex	Yes
Monthly Duty Cycle	150, 000 pages
Functions	Print, Copy, Scan, Fax
Maximum Paper Size	11" x 17"
Type	Monochrome Laser Multifunction Printer
Print Speed	40 ppm
Scan Resolution	600 dpi
Paper Capacity	Maximum: 4, 400 sheets
Connectivity	USB 2.0, Ethernet 10/100Base-TX
First Print Time	4.1 seconds
Zoom Range	25% - 400%
Fax Transmission Speed	Less than 3 seconds per page