Lexmark T522 Service Manual - Page 84

4520-xxx Fuser Service Check Cold Fuser Service Check Error codes 920, 921, and 922 may display for a cold fuser failure. A 920 error caused by low line voltage can sometimes be cleared by turning the machine off and then on again. A 925 service error indicates the wrong fuser lamp is installed. Be sure the correct type of fuser lamp is installed in the printer. If the correct lamp is installed and a 925 error remains, the problem may be due to the following: • The fuser may have reached standby temperature too quickly. • The line voltage may be above the maximum rating for the printer. Note: A 920, 921 or 922 fuser error may be caused by an incorrectly mounted thermistor. Service Tip: Set the Fuser Temperature to NORMAL before starting this service check. FRU 1 Fuser Lamp (Incorrect Lamp/925 Service Error) Action Install the correct voltage and wattage lamp or fuser assembly. If the correct fuser lamp is installed and the 925 error remains, the fuser may have reached standby temperature too quickly. Check that the line voltage is not exceeding the maximum rating for the printer. 2-56 Service Manual