Utax LP 3335 - Page 78

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2L0

1-5-25

11. Remove four screws.

12. Unhook three hooks and then remove the

lower base cover.

Figure 1-5-35

Screws

Hook

Lower base cover

Main Page

Table of Contents12
Specifications14
Parts Names16
Overall16
Operation Panel16
Machine Cross Section18
Installation Environment20
Unpacking21
Removing the Tapes22
Installing the Expanded Memory (Option)23
Installing the Memory Card (Optional)24
Maintenance Mode26
Executing a Maintenance Item26
Contents of Maintenance Mode Items27
Printing an Event Log (EVENT LOG)34
Paper Misfeed Detection40
Paper Misfeed Indication40
Paper Misfeed Detection Condition40
Self-Diagnostic Function41
Self Diagnostic Codes42
Image Formation Problems46
Completely Blank Printout46
All-Black Printout47
Dropouts48
Black Dots48
Black Horizontal Streaks48
Black Vertical Streaks49
Unsharpness49
Gray Background49
Dirt on the Top Edge or Back of the Paper50
Undulated Printing at the Right Edge (Scanning Start Position)50
Electric Problems51
Mechanical Problems53
Assembly and Disassembly54
Precautions for Assembly and Disassembly54
Precautions54
Drum54
Toner Container54
How to Tell a Genuine Kyocera Mita Toner Container55
Outer Covers56
Detaching and Refitting the Top Cover56
Detaching and Refitting the Right and Left Covers57
Paper Feed Section59
Detaching and Refitting the Paper Feed Roller Assembly (Paper Feed Roller and Pickup Roller)59
Detaching and Refitting the Retard Roller Assembly61
Detaching and Refitting the MP Paper Feed Roller63
Developing Section64
Detaching and Refitting the Developing Unit64
Drum Section65
Detaching and Refitting the Drum Unit65
Detaching and Refitting the Main Charger Unit66
Transfer/Separation Section67
Detaching and Refitting the Transfer Roller67
Fuser Section69
Detaching and Refitting the Fuser Unit69
Switching the Fuser Pressure71
Pwbs72
Detaching and Refitting the Control PWB72
Detaching and Refitting the Power Source PWB75
Detaching and Refitting the High Voltage PWB77
Others81
Detaching and Refitting the Main Motor81
Detaching and Refitting the Laser Scanner Unit82
Detaching and Refitting the Eraser Lamp (PWB)84
Direction of Installing the Left Cooling Fan Motor and Right Cooling Fan Motor85
Downloading Firmware86
Firmware Files86
Downloading the Firmware from the USB Memory87
Downloading the Firmware from the Memory Card89
Paper Feed/Conveying Section92
Cassette Paper Feed Section92
MP Tray Paper Feed Section93
Paper Conveying Section94
Drum Section95
Main Charger Unit96
Expose Section97
Laser Scanner Unit97
Developing Section99
Transfer/Separation Section100
Cleaning Section101
Fuser Section102
Paper Exit Section104
Duplex/Conveying Section106
Electrical Parts Layout108
Pwbs108
Switches and Sensors110
Other Electrical Components111
Power Source PWB112
Control PWB114
Appendixes120
Wiring Diagram120
Repetitive Defects Gauge121
Maintenance Parts List122

Utax LP 3335 - Page 78

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