4012-0XX
37
Fax Board, Printer Board, and LCU Board Removal
1. Unplug the machine before beginning any electrical service. The
power key does not remove power from the electronics.
2. Remove the left and right side covers, the front cover and the
rear cover, and disconnect J1, J2, J4, J5 and J6 from the printer
board.
3. Disconnect the scanner motor cable from J3 and scanner data
cable J8 from the fax board.
4. Unsnap the two print engine feet at the right side of the machine.
5. Pivot the print engine up around the left pivots, being sure no
cables are being strained, until the left side of the print engine is
resting on the table.
6. Disconnect the remainder of the cables required to remove the
board.
7. Cut the cable tie around the support posts.
8. Remove the EPROM (see
) for
installation on the new board. Remove the ground screw and
remove the board.
Note: If the printer board is replaced, check the bidirectional align-
ment. If the fax board is replaced, inspect the LCU board for physical
damage. Replace the LCU board if damage is present. The machine
serial number needs to be saved into memory, if the fax board is
replaced. Refer to
“Setting the Machine Serial Number” on page 26
Feed Arm Assembly Removal
1. Remove the covers.
2. Remove the ASF.
3. Remove the C-clip from the center of the large gear and remove
the feed arm assembly.
Inside Idler Gears Removal
1. Remove the covers.
2. Remove the ASF.
3. Disconnect the printhead cables from the printer board.
4. Remove the paper guide.
5. Remove the C-clip from the feed arm assembly and remove the
feed arm assembly.
6. Pull the idler gears off the mounting studs.
Summary of Contents for Medley 4012-005
Page 9: ...ix 4012 0XX Chinese Safety Information Korean Safety Information ...
Page 59: ...Parts and Test Point Locations 50 4012 0XX Fax Board J4 J5 J6 J7 J8 J9 J10 J11 J12 J1 J2 J3 ...
Page 66: ...4012 0XX 57 Assembly 1 Covers 9 19 1 20 21 3 6 4 10 5 15 8 2 11 22 7 ...
Page 68: ...4012 0XX 59 Assembly 2 Frame 2 9 10 3 4 1 8 8 6 5 7 ...
Page 70: ...4012 0XX 61 Assembly 3 Operator Panel 9 3 10 2 1 6 5 4 8 7 11 ...
Page 72: ...4012 0XX 63 Assembly 4 Printer Paper Feed Assembly 4 6 7 9 8 1 2 3 5 ...
Page 74: ...4012 0XX 65 Assembly 4 Printer Paper Feed Assembly cont 11 13 12 11 10 14 ...
Page 76: ...4012 0XX 67 Assembly 5 Carrier 3 1 4 6 1 2 5 ...
Page 78: ...4012 0XX 69 Assembly 6 Carrier Transport 1 2 4 5 3 6 7 ...
Page 80: ...4012 0XX 71 Assembly 7 Maintenance Station 3 1 4 2 ...
Page 82: ...4012 0XX 73 Assembly 8 Scanner 3 6 9 10 7 1 4 2 8 5 14 12 13 ...
Page 84: ...4012 0XX 75 Assembly 9 Electronics ...
Page 86: ...4012 0XX 77 Assembly 10 Automatic Sheet Feed ASF 10 4 2 7 6 11 1 8 7 9 3 5 ...