Xerox Phaser 6360 Service Manual page 110

Error Messages and Codes
3-10
7. Before measuring voltages make sure the printer is switched On, the
Imaging Unit and the paper trays are in place, and the interlock switch is
actuated, unless a troubleshooting procedure instructs otherwise.
8. All voltage values given in the troubleshooting procedures are
approximate values. The main purpose of voltage readings is to
determine whether or not a component is receiving the correct voltage
value from the power supply and if gating (a voltage drop) occurs during
component actuation. Gating signals may be nothing more than a pulse,
resulting in a momentary drop in voltage that may be difficult or
impossible to read on the average multi-meter.
9. When a troubleshooting procedure instructs you to replace a non-spared
component and that component is part of a parent assembly, you should
replace the entire parent assembly.
10. Ensure that you are using a supported media size and type, refer to
"Media and Tray Specifications" on page 1-18.
11. Power and signal grounds are connected to the frame ground. All circuit
troubleshooting can be performed using the metal frame (chassis) as the
grounding point. To locate connectors or test points, refer to the section
"Plug/Jack Locator Maps" on page 10-2 or "Wiring Diagrams" on
page 10-13 for more information.
Unless otherwise specified, the following voltage tolerances are used
within this section:
Stated
+3.3 VDC
+5.0 VDC
+24.0 VDC
0.0 VDC
Measured
+3.135 to +3.465 VDC
+4.75 to +5.25 VDC
+21.6 to +26.4 VDC
Less than +0.5 VDC
Phaser 6300/6350/6360 Color Laser Printer Service Manual