Specifications

3.2 SWITCH OR OTHER ELECTRICAL COMPONENT
Component Condition Symptom
Main Switch
(SW1)
OPEN The copier does not turns on.
SHORTED The copier does not turns off.
Cover Safety Switch
(SW2)
OPEN The copier does not tunrs on.
SHORTED The copier does not turn off when the
front or exit cover is opened.
Paper Size Switch
(1st and 2nd)
(SW3 to 9)
OPEN The CPU cannot detect proper paper
size, and misfeeds may occur when
a copy is made.
SHORTED
Color Switch
(SW8)
OPEN
(CN114-4 and/or 6
stays HIGH)
The CPU cannot properly control the
copy process system for the
development unit (black or color).
This may cause an abnormal image
(dirty backfround, light copy, etc.)
SHORTED
(CN114-4 and/or 6
stays LOW)
Manual Feed
Table Switch
(SW9)
OPEN
(CN114-8 stays HIGH)
The CPU does not detect manual
feed mode even when the manual
feed table is opened.
SHORTED
(CN114-8 stays LOW)
The "Manual Feed" indicator stays
on even when the manual feed table
is closed.
Right Cover Switch
(SW10)
OPEN
(CN117-2 stays HIGH)
The CPU does not display User
Code #1 even when the right cover is
opened.
SHORTED
(CN117-2 stays LOW)
User Code #1 is displayed even
when the right cover is closed.
Exposure Lamp
(L1)
OPEN SC Code (E11) is displayed.
Fusing Lamp
(L2)
OPEN SC Code (E52) is displayed.
Fusing Thermistor
(TH)
OPEN SC Code (E55) is displayed.
Fusing Thermofuse
(TF)
OPEN SC Code (E52) is displayed.
Optics Thermoswitch
(TS)
OPEN SC Code (E11) is displayed.
1 December 1990
6-55