TROUBLE SHOOTING
Although the Series 90 printers are designed for reliable, trouble-free operation, problems may occasionally occur which are usually easy to correct. The lists below may offer some easy solutions to the problems. If a problem is still unresolved, then it may be necessary to contact the dealer for assistance.

PRINTER HAS NO RESPONSE (NO LIGHTS, NO NOISE)
1. Make sure that the printer ac power cord is plugged in securely on both ends.
2. Check to see if the ac receptacle has power by plugging in another ac powered device such as a lamp.
3. Check the printer power switch and turn it OFF and then ON again.

ALM LIGHT ON STEADY
1. Check paper roll for proper installation. Paper may be out or on top of the paper out switch.
2. Check the printer power switch and turn it OFF and then ON again.

ALM LIGHT FLASHING AND PRINT HEAD DOES NOT MOVE
1. Remove the carriage shipping restraint.
2. Check behind print head for a paper jam.
3. The print head should move back and forth to each limit very easily. Look for foreign objects. Check the wiring cable and make sure that it did not come loose and become wedged against the side of the print head.
4. Check the printer power switch and turn it OFF and ON again.
5. Check the ink ribbon and make sure that it isn't twisted or jammed. The ribbon should advance freely when turning the ribbon take up knob on the ribbon cassette.

NO COMMUNICATION TO MAIN PRINTER
1. Check all cable connections for tightness.
2. Check all configuration settings.
3. Substitute a working printer to verify that the wiring and the main computer is functioning properly.

PRINTS ONLY THE FIRST TWO LINES OF THE DIAGNOSTIC TEST
1. Check the printhead ribbon cable by moving the printhead to the extreme right side. If the ribbon cable looks out of position, pick the cable up off the bottom and reposition it. The sticky material under the cable should allow it to be repositioned.

PRINT SMEARED
1. Adjust the printhead gap.
2. Check for a paper jam at the printhead.
3. Check the ink ribbon to see if it is twisted or jammed. The ribbon should advance freely when turning the ribbon take up knob on the ribbon cassette.
4. Check the plastic guide on the front of the ribbon cassette. Make sure that it isn't dislodged or bent. If in doubt, compare it to a new cassette.
5. Replace the ink ribbon cassette.

PAPER JAMS OR TEARS
1. Adjust the printhead gap.
2. Is the correct kind of paper being used?
3. Remove printhead and reinstall.

PRINTHEAD GAP ADJUSTMENT
The gap between the printhead and the platen is adjustable to accommodate different paper thicknesses. The blue lever, located to the left of the ribbon cassette, moves the printhead through three positions. The position nearest the platen, position 1, is for 1 or 2 part paper. Should the printhead jam or smudging occur, increase the gap by moving the lever to position 2 or 3. For best print density, set printhead for the minimum gap where smudging or jamming does not occur.

INSTALL AND REMOVE PRINTHEAD