
A-1
APPENDIX
A. GENERAL TIMING CHART
• Conditions: Copy / A4 paper / main unit cassette pick-up / 3 sheets
ESS
INTR1
STBY
INTR2
SCFW
SCRV
SCFW
SCRV
SCFW
SCRV
LSTR
STBY
Main motor (M601)
Fixing heater
Document scanner motor (M701)
Scanner HP sensor (PS101)
Scanning lamp
Shading measurement
Cassette pick-up solenoid (SL301)
Pick-up vertical path clutch (CL301)
Pick-up sensor (PS303)
Registration clutch (CL302)
Registration sensor (PS302)
Paper leading edge sensor
(PS301)
Paper width sensor (PS304)
Primary charging roller bias DC
Primary charging roller bias AC
Transfer charging roller bias
Separation static charge
eliminator bias
Laser scanner motor (M801)
Laser exposure
Developing bias DC
Developing bias AC
Delivery sensor (PS306)
Exhaust fan (FM301)
Power ON
Start ON
90 sec.
160
°
C control
Forward
Reverse
Negative bias
Negative bias
Paper interval bias
Paper interval bias
Re-charge eliminator bias
150
°
C control