Xerox 8500DN Service Manual - Page 174

General Troubleshooting This test turns on the process motor and runs it very slowly for one revolution. Process Motor R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) Actions 0 Motor fe ripple (ticks) 2.8 to 6.0 0 to .02 1 Motor fe average -4 to 3.0 .015 to .01 (ticks) 2 Motor drive voltage 5 to 11 ripple (volts) 8 to 11 3 Motor drive voltage 1.3 to 2.3 .9 to 1.5 (volts) 4 Motor drive power 1.03 to 3.6 .7 to 2.0 ripple (watts) 5 Motor drive power 1.5 to 3.5 1.2 to 2.75 average (watts) Reports amount of variation of the motor following error. Reports the motor following error average value. Reports amount of variation of the motor drive voltage. Reports the motor drive voltage average value. Reports amount of variation of the motor drive power. Reports the motor drive power average value. This test turns on the media path motor and runs it very slowly for one revolution. Media Path Motor R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) Actions 0 Motor fe ripple (ticks) .40 to 1.3 .001 to .0035 Reports amount of variation of the motor following error. 1 Motor fe average 0.8 to 2.0 .0033 to .007 Reports the motor following (ticks) error average value. 2 Motor drive voltage 4 to 10 ripple (volts) 4 to 8 Reports amount of variation of the motor drive voltage. 3 Motor drive voltage -5.5 to -2.0 -5 to -2.0 (volts) Reports the motor drive voltage average value. 4 Motor drive power 0.8 to 6 ripple (watts) .8 to 3.9 Reports amount of variation of the motor drive power. 5 Motor drive power 1.9 to 7 average (watts) 2 to 8 Reports the motor drive power average value. 4-44 Phaser 8400/8500/8550/8560 Color Printer Service Manual