No Printing On Edge Of Print; Image Is Not Centered On The Print When It Should Be; The Print Is Wrinkled - Tektronix Z740/N - Phaser 740 Color Laser Printer Service Manual

No printing on edge of print

1. If one primary color is missing, replace that color's toner cartridge.
2.
Check that each toner cartridge moves forward smoothly toward the
imaging unit. Also inspect the two metal pads on the ends of the toner
cartridge that the toner cartridge selector cams push against.
3. Inspect the cartridge selector/eject unit to ensure that the cams are in good
condition. Replace the cartridge selector/eject unit.
4. Replace the imaging unit.

Image is not centered on the print when it should be

1. Is the paper in good condition and appropriate for a laser printer.
2.
Is the printer printing within its environmental specifications?
3.
Ensure the paper feeder is properly installed.
4. Is the top and left margin adjustments correct? Refer to the service tests
discussed in the topic "Printer self-diagnostics" on page 57.
5.
Clean the intermediate and aligning rollers.
6.
Replace the paper feeder.
7.
Replace the engine control board.
8. Replace the laser scanner.

The print is wrinkled

1.
Check for an obstruction in the paper path, particularly the paper feeder
and the fuser.
2.
Is the paper in good condition and appropriate size, weight, grain and grade
for a laser printer?
3.
Is the printer printing within its environmental specifications?
4. If possible, you should feed long-grain paper into the printer. Long-grained
paper's grain is parallel to the paper path (the direction the paper travels
while it is fed through the printer).
5.
If the print is exiting the printer with "dog-ears" (the corners folded down,
check the paper separators metal tabs in the corners of paper tray. Bend the
tabs slightly to correct the problem or replace the tray.
52 Phaser 740 Color Printer