APPENDIX
A. GENERAL TIMING CHART
• Conditions: Copy / A4 paper / main unit cassette pick-up / 3 sheets
Power ON
Start ON
STBY
INTR2
SCFW
SCRV
SCFW
SCRV
LSTR
STBY
ESS
INTR1
SCRV
SCFW
Main motor (M601)
150°C control
160°C control
Fixing heater
Reverse
Forward
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
Negative bias
Negative bias
Paper interval bias
Transfer charging roller bias
Separation static charge
eliminator bias
Re-charge eliminator bias
Laser scanner motor (M801)
Laser exposure
Paper interval bias
Developing bias DC
Developing bias AC
Delivery sensor (PS306)
Exhaust fan (FM301)
90 sec.
A-1