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Lexmark C750 Service Manual - Page 197

Lexmark C750 Manual

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5060-00x Diagnostics Mode To run the printer diagnostic tests described in this chapter, put the printer in Diagnostics Mode. The tests display on the operator panel in the order shown: REGISTRATION ALIGNMENT TOP FINE MAR ADJ MISC TESTS PRINT TESTS HARDWARE TESTS DUPLEX TESTS (if duplex is installed) INPUT TRAY TESTS OUTPUT BIN TESTS FINISHER TESTS (if finisher is installed) BASE SENSOR TEST DEVICE TESTS (if optional flash or disk installed) PRINTER SETUP EP SETUP ERROR LOG Exit Diagnostics Entering Diagnostics Mode To enter the Diagnostics Mode: 1. 2. 3. 4. Turn the printer off. Press and hold the Go and Return buttons. Turn the printer on. Release the buttons when Performing Self Test is displayed. Exiting Diagnostics Mode Select Exit Diagnostics to exit the Diagnostics Mode and return to normal mode. Diagnostic aids 3-13

Section	Page
Table of contents	3
Notices and safety information	11
Laser notice	11
Safety information	17
Preface	20
Definitions	20
1. General information	21
Tools required for service	21
Options and features	22
High performance	22
Print quality	22
Heavy volume reliability	22
Automatic calibration	22
Resolution	23
Toner darkness	23
Printer specifications	23
Dimensions	23
Power and electrical specifications	23
Electrical specifications	24
Operating clearances	24
Fuser web oiler upgrade kit and replacements	24
Upgrade kit	24
Replacements	24
Acoustics	25
Environment	25
Print speed and performance print speed	26
Performance	26
Time to first print	26
Processor	26
Duty cycle	26
Memory configuration	27
Available memory options	27
Media specifications	27
Acronyms	33
2. Diagnostic information	35
Start	35
POR (power-on reset) sequence	36
Symptom tables	37
Symptom table-base printer	37
Symptom table-500-sheet drawer option	38
Symptom table-HCIT 2000-sheet option	38
Symptom table-output expander option	39
Symptom table-5-bin mailbox option	39
Symptom table-finisher option	39
Error code table	40
Sub error code table	51
Programming errors - P101 through P116	54
Understanding the printer operator panel	54
Operator panel buttons	54
Color Menu	56
Utilities Menu	57
User attendance message table	62
Service checks	76
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