Toshiba manual FC-22 Troubleshooting

Criteria

Perform following procedures from 2 and after.

Uneven pitch extending 2.5mm to 3mm within an area about 130mm wide from leading edge of the image?

Does the roller surface lack in friction and is it slippery?

Uneven pitch extending approx. 2.9mm within an area about 150mm wide from trailing edge of the image?

Is paper tightened?

Uneven pitch approx. 94mm overall?

Is there damage?

Is there any attached foreign matter?

Is the value significantly different from the default value 1700? (The value shifts one step each in connection with transfer belt speed)

Uneven pitch approx. 2.5 mm overall?

Uneven pitch approx. 75 mm overall?

Damaged or broken edge?

Uneven pitch approx. 75 mm overall?

Is there any stain?

Uneven pitch approx. 75 mm overall?

Uneven pitch approx. 0.3 mm overall?

Measures

Re-adjust paper feed motor rotation speed. * See P. 4-58.

Re-adjust paper feed motor rotation speed. * See P. 4-58.

Replace registration roller.

By fine adjustment (a few steps at a time), slacken paper slightly, not tighten it (to a straight line in side view) between transfer belt and fuser unit.

Replace drum.

Clean or replace drum.

Troubleshoot drum driving.

Troubleshoot drum driving.

Reset drum motor rotation speed to 1700.

Re-fasten screws.

Replace couplings.

Replace couplings.

Re-fasten screws to fix tension arm.

Replace transfer belt (troubleshoot transfer belt). Clean it.

Troubleshoot used toner system.

Replace cleaning blade (troubleshoot transfer belt). Replace unit.

January 2000 © TOSHIBA TEC 4 - 57 FC-22 TROUBLESHOOTING