Ricoh Aficio MP 4002 Service Manual

Electrical Component Defects
SM 6-75 D129/D130
Trouble-
shooting
Component
(Symbol)
CN Condition Symptom
Platen Cover 318-5 (SIO)
Open
APS and ARE do not function
properly.
Shorted No symptom.
Original Length 1
313-2
(SIO)
Open/
Shorted
CPU cannot detect the original
size properly. APS and ARE do
not function correctly.
Original Length 2
313-8
(SIO)
Open/
Shorted
CPU cannot detect the original
size properly. APS and ARE do
not function correctly.
6.2.2 SWITCHES
Component
(Symbol)
CN Condition Symptom
Right Door
221-B10
(IOB)
Open
"Open Cover" is displayed even if
the right door is closed.
Shorted
The LCD goes blank when the
right door is opened.
Main Power
903-1,2
(PSU)
Open The machine does not turn on.
Shorted The machine does not turn off.
Interlock
913-1,2
(PSU)
Open
"Doors/Covers Open" is displayed
even if the front or right door is
closed.
Shorted
The LCD goes blank when the
front or right door is opened.

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