2.
FUNCTION OF SWITCHES AND OTHER PARTS ON
PWBs
NOTE
• Before attempting to perform these procedures, set up the Service Jig.
☞ See "Setting up the Service Jig." (D-2)
2-1.
PWB Location
2-2.
PWB-S1 (Tech. Rep. Setting Switches Board)
Symbol
INI
Initialize Point
MEMORY
Memory Clear Test Point
COM
COM Test Point
TROUBLE Trouble Reset Switch
SERVICE
Not used
Name
Resets a paper misfeed, malfunction, and
erratic display.
Clears data of various kinds stored in mem-
ory.
Ground used for memory clear.
Resets the following malfunction displays:
Fusing system (C05XX), ROM contents fail-
ure detected upon start (C3FF)
S-7
PWB-S1
4025S001AA
4002S002AB
Description