Outline; Controlling The Speed According To The Quantity Of Printing; Preventing Partial Deformation Of The Roller; Controlling The Fixing Roller Temperature - Canon iR C3200 Series Service Manual

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If left unattended, the heat of the pressure roller would be absorbed by paper when a large quality of printing is under

way, causing the paper to curl appreciably upon delivery and, thus, making proper stacking difficult.To prevent

excess curling, the speed of the roller is reduced to half (as set in service mode) when as many as 100 large-size sheets

or as many as 200 small-size sheets have been handled.

Service Mode (level 2)

COPIER>OPTION>BODY>DWNSQ-SW

To prevent deformation otherwise caused by the nip pressure of the fixing roller as occurring when the machine is

left unattended for a long period of time, the fixing roller is rotated for 0.5 sec at half speed (64.55 mm/sec) every 30

min after it has stopped (i.e., during standby/low power mode).

11.3.2.1 Outline

The fixing roller is driven by a pulse motor used exclusively for it;

The roller is controlled for the following:

[1] speed to suit the type of medium used

[2] speed to suit the (large) quantity of printing work

[3] during printing

[4] between long sheet intervals

[5] in response to overheating in non-paper contact area

[6] during return from low-power mode

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