Service Manual

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TIMING CHART

4-75

IV DIAGRAMS

5. TIMING CHART

5.1 7145 Timing Chart

A. 8.5x11, life size, 2 copies, feed from tray 1

012345678910

Item

Time (sec)

SD1 (1st paper feed solenoid /U)

PS1 (Registration sensor)

V-Valid

PS21 (Timing sensor /U)

MC1 (Registration clutch)

MC2 (Loop clutch)

PS2 (Fixing exit sensor)

PS23 (IT exit sensor /U)

M9 (Paper feed motor)

M11 (Fixing motor)

M1 (Main motor)

M3 (Developing motor)

SD7 (Separation claw solenoid)

SD4 (Cleaning web solenoid)

HV (Charging corona)

HV (Developing bias)

HV (Transfer corona section)

HV (Separation corona)

PCL (Pre-charging exposure lamp)

TSL (Transfer synchronization lamp)

HV (Paper entrance guide plate)

START button ON

: Does not come ON for some copy counts.

M3 (Developing motor)