XEROX DFC165 & DWC165c Service Manual
vii
6.1.8 SCANNER SHADING ...........................................................................6-10
6.1.9 CARRIAGE TEST ................................................................................6-11
6.2
CHECKS AND ADJUSTMENTS..................................................6-12
6.2.1 Checking the Direct Voltages ..............................................................6-12
6.3
ADJUSTING THE CCD .............................................................6-13
6.3.1 Preparing for the CCD Adjustment .......................................................6-13
6.3.2 Checking the Alignment of the CCD Board ...........................................6-14
6.3.3 Checking the Lens Focus ....................................................................6-16
6.3.4 Checking that the Document and the CCD are centred .......................... 6-17
7.
MAINTENANCE AND REPLACEMENT
PROCEDURES .....................................................7-1
7.1
MAINTENANCE........................................................................7-1
7.1.1 OUT OF INK Message ...........................................................................7-1
7.1.2 Replacing the rechargeable Ink Cartridge ...............................................7-2
7.1.3 Replacing the Print Head ......................................................................7-3
7.1.4 Cleaning the Print Head ........................................................................7-3
7.1.5 Cleaning the Electrical Contacts ............................................................7-4
7.1.6 Cleaning the Print Head Cleaning Pad ....................................................7-5
7.1.7 Cleaning the Optical Unit .....................................................................7-6
7.2
DISASSEMBLY AND REPLACEMENT PROCEDURES...................7-10
7.2.1 Wirings .............................................................................................7-10
7.2.2 Removing the Casing .........................................................................7-12
7.2.3 Removing the Power Supply/NCU Assembly ........................................7-13
7.2.4 Removing the Power Supply and NCU Boards ......................................7-15
7.2.5 Removing the Motherboard ................................................................7-16
7.2.6 Removing the Console .......................................................................7-18
7.2.7 Removing the Console Board ..............................................................7-19
7.2.8 Removing the Display .........................................................................7-19
7.2.9 Removing the Scanner Unit ................................................................7-20
7.2.10 Removing the CCD Board ...................................................................7-21
7.2.11 Removing the LED Array ....................................................................7-21
7.2.12 Removing the Printer Unit ..................................................................7-22
7.2.13 Removing the Carriage, Paper and Ink Drain Motors ............................. 7-23
7.2.14 Removing the Scanner Motor ..............................................................7-24
7.2.15 Removing the Print Carriage ...............................................................7-24
8.
OPTIONAL DEVICES ...........................................8-1
8.1
SETTING UP A BACK TO BACK CONNECTION ..............................8-2
