NOTE: It is important to always follow this process in sequence. Failure to do so can result in increased repair time, difficulty, and expense. The following list describes the basic questions for the customer and the corresponding troubleshooting section to help quickly define the problem(s). Table 6-1. Major Steps for Troubleshooting C4170-90959 Troubleshooting Process 91 “Power On” (page 93) Does the printer perform the initialization and power-on sequence? This section gives the procedures for correcting power supply problems. “Troubleshooting with Control Panel Messages” (page 94) Do the Control Panel LEDs indicate an error condition?
This section gives the procedures for clearing Control Panel messages. Paper Handling Problems Is it possible to print a test page? This section gives information about troubleshooting paper path and media problems. “Evaluate the Test Pages” (page 109) Is there information in the Status Log? This section gives the procedures for printing the information pages and evaluating and correcting the printer’s configuration. “Image Formation Troubleshooting” (page 110) Does the print quality meet the customer’s expectations? This section gives Toner Cartridge checks, information on EconoMode, image defect examples, and the repetitive defect ruler.
Media Troubleshooting This section provides information on how to determine print media problems and correct them. Communication Troubleshooting Can the customer print from the host system successfully? This section describes how to determine if the printer is communicating properly with the host system.