Table of contents
Product information.....................................................................................2
Edition notice...............................................................................................2
Notices and safety information..................................................................11
Laser notices............................................................................................................................................11
Safety.......................................................................................................................................................14
Preface.......................................................................................................19
Service manual conventions....................................................................................................................19
General information...................................................................................21
Media guidelines.....................................................................................................................................21
Paper guidelines ............................................................................................................................................... 21
Using recycled paper and other office papers ..................................................................................................23
Using specialty media ....................................................................................................................................... 24
Supported paper sizes, types, and weights ......................................................................................................26
Data security notice.................................................................................................................................28
Tools required for service........................................................................................................................29
Diagnostic information...............................................................................31
Troubleshooting overview.......................................................................................................................31
Performing the initial troubleshooting check ...................................................................................................31
Power‑on Reset (POR) sequence ......................................................................................................................31
Understanding the printer messages......................................................................................................32
Cartridge, imaging unit mismatch [41.xy].........................................................................................................32
Cartridge low [88.xy].........................................................................................................................................32
Cartridge nearly low [88.xy]..............................................................................................................................32
Cartridge very low, [x] estimated pages remain [88.xy] ...................................................................................32
Change [paper source] to [custom type name] load [orientation]...................................................................33
Change [paper source] to [custom string] load [paper orientation].................................................................33
Change [paper source] to [paper size] load [orientation] ................................................................................33
Change [paper source] to [paper type] [paper size] load [orientation]............................................................33
Close front door ................................................................................................................................................33
Complex page, some data may not have printed [39]......................................................................................34
Configuration change, some held jobs were not restored [57] ........................................................................34
Defective flash detected [51]............................................................................................................................34
Error reading USB drive. Remove USB. ............................................................................................................. 34
Error reading USB hub. Remove hub. ...............................................................................................................34
4514-630, -635, -636
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