Countermeasures; Image Faults; Smudged/Streaked; There Are Vertical Black Lines Or A Vertical White Line In A Solid Black Image - Canon LBP3200 - LBP 3200 B/W Laser Printer Service Manual

Chapter 5

5.2 Countermeasures

5.2.1 Image Faults

5.2.1.1 Smudged/Streaked

5.2.1.1.1 There are vertical black lines or a vertical white line in a solid black image.

<Cause>
The vertical black lines are likely to have been caused by the ribs of the heater holder. The vertical white line is likely
to have been caused by the thermal fuse (if it corresponds to the location of the fuse).
<Field Remedy>
Select heavy paper mode.

5.2.2 Malfunction

5.2.2.1 No Power

5.2.2.1.1 The machine at times fails to go on when its power is turned on after it has been turned off.

<Cause>
If the machine is tuned on immediately after it has been turned off, residual power can momentarily start up the
scanner motor, causing an overload (i.e., in excess of the rating indicated for power-on).
<Field Remedy>
If the machine fails to go on, turn off its power switch; then, turn it back on after waiting for 30 sec.

5.2.2.2 Malfunction/Faulty Detection

5.2.2.2.1 The machine does not permit correct placement of paper in its manual feed tray after it has
delivered paper.
<Cause>
The machine cannot recognize insertion of paper from its manual feed tray while the main motor is on (rotating
rollers) after delivery.
<Field Remedy>
Insert paper from the manual feed tray only after the main motor (roller rotation) has stopped.
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