Theory of Operation Ver. 8.0 Jun. 2008
18. Timing roller section
12
3
Composition/Operation
18.2 Operation
18.2.1
Timing roller control
• The paper will create a loop between the tray 1 vertical transport roller (or ADU transport
roller 4) and the
regist motor
when the paper is being conveyed in order to correct the
skew.
• Timing roller is controlled in order to synchronize the timing the unit starts writing the
image and conveying paper.
A. Adjustment
• The amount of the loop of the paper can be adjusted in the “Service Mode - [Machine] -
[Printer Regist Loop]”. Changing the adjustment value will change the OFF timing of the
tray 1 vertical transport motor (or ADU transport motor 2).
A00JT2C223AA
Timing roller sensor
(PS38)
Registration motor (M2)
Tray1 vertical transport
motor (M5)
Timing roller rotation start
Tray1 vertical roller stop
Tray1 vertical transport roller rotation start
Registration start
Paper loop is created before the timing roller
A00JT2C222AA
Timing roller
Timing roller sensor (PS38)
OHP detection sensor (PS40)
Loop creating
Tray1 vertical transport roller
Paper
Tray1 paper feed roller
Y107522-3 Theory of Operation
