Tektronix Phaser 740 User Manual

56 Phaser 740 and 750 Color Printers
Blank print
1. Press, and hold for 4 seconds, the rear panel Test Print button to determine if the
print engine will image at all. It should produce a parallel line print. If the
engine produces a good parallel line print, the print engine is good and the
image processor board is bad. If you get a blank print then the following items
may be defective. The engine test print feature only works if a paper tray is
installed in the top tray slot.
2. Replace the laser unit.
3. Replace the imaging unit.
4. Determine if the cartridge selector is pushing the toner cartridges into contact
with the photoconductive drum.
5. Replace the toner cartridge drive unit.
6. Replace the cartridge sector/eject unit.
7. Replace the engine driver board.
All-black print
1. Entire print, including margins is black. Remove and reinstall the main charge
grid.
2. Inspect the main charge grid for a broken corona wire. Replace the main charge
grid.
3. Replace the high-voltage board
4. Margins are white, print is black. Replace the image processor board.
5. Replace the engine control board.

Tektronix Phaser 740 Specifications

General

Brand	Tektronix
Model	Phaser 740
Category	Printer
Language	English