5–20
Replacement Procedures
Control Panel Assembly (Figure 5–7 )
Removal
1.
Prepare the printer for maintenance (page 5–3).
2.
Open the printer cover.
3.
Remove the paper guide assembly (page 5–42).
4.
Open the connector latches and disconnect the control panel ribbon
connector P1 (1) from connector J3 on the common controller PCBA
(2).
5.
Remove the common controller PCBA (page 5–46).
6.
Remove the mechanism driver PCBA (page 5–48).
7.
Remove the control panel ribbon cable from the card cage.
8.
Remove the control panel ribbon cable from the wire saddles (3) on the
mechanism base pan.
9.
Remove the ferrite cores from the ribbon cable. (Note the number of
turns.)
10. Loosen four screws (4).
11. Remove the control panel assembly (6) from the keyways in the control
panel bracket (7).
Installation
IMPORTANT
You must install two ferrite cores on the control panel cable assembly.
Refer to Appendix F.
1.
Feed ribbon connector (1) and the ribbon cable through the control
panel bracket (7) and position the control panel assembly (6) on the
bracket.
2.
Hand tighten four screws (4).
3.
Lower the printer cover and center the control panel assembly (6) in the
cutout of the printer cover.
4.
Open the printer cover and tighten the four screws (4).
5.
Route the control panel ribbon cable along the right side of the printer.
6.
Install the ferrite cores. (Refer to Appendix F.)
7.
Feed the ribbon cable and ribbon connector (1) through the slot in the
card cage. Tie wrap the round ferrite core to the card cage.
8.
Install the mechanism driver PCBA (page 5–48).
9.
Install the common controller PCBA (page 5–46).
10. Connect the control panel ribbon connector P1 (1) to connector J3 on
the common controller PCBA (2) and close the connector latches.
Summary of Contents for P4280
Page 1: ...P4280 Line Matrix Printer Maintenance Manual R ...
Page 2: ......
Page 3: ...P4280 Line Matrix Printer Maintenance Manual R P N 155064 001 Rev B ...
Page 236: ...A 22 Configuring the Printer ...
Page 246: ...C 2 Torque Table ...
Page 263: ...D 17 Wire Data Cable No Part No Description W7 150649 001 Cable Assembly AC Ground PIN 1 ...
Page 296: ...8 Index Notes ...
Page 297: ......