Lexmark X 850 Owners Manual

Repair information4-223
7500-XXX
7.Remove two E-clips with a prying tool securing the two small pulleys (D) on the front of the frame 
assembly. 
8.Remove two small guides (E) and the two small pulleys (D). 
9.Remove the tray 3 front cables (C) from the bottom plate (F). 
Note:  Before re-installing: 
—It is recommended that all four cables be replaced. 
—Ensure tray 3 front cables (C) are not twisted or kinked. 
—Route the cables properly as shown in the figure. 
—Replace the cables by setting the frame...

4-224MFP Service Manual 7500-XXX
6.Remove the rack gears (C). 
C
B
E-ring
A
A
Left E-ring
C 

Repair information4-225
7500-XXX
Note:  Before re-installing, move the two side guides (D) of the frame assembly (B) fully outward before 
installing the two pinion gears (A). 
D
D 

4-226MFP Service Manual 7500-XXX
2000-sheet dual input (TTM)–tray 3 media guide lock assembly removal 
1.Remove the tray 3 assembly. See “2000-sheet dual input (TTM)–tray 3 assembly removal” on 
page 4-217. 
2.Remove the tray 3 front cover. See “2000-sheet dual input (TTM)–tray 3 front cover removal” on 
page 4-218. 
3.Remove the tray 3 rear cable assembly. See “2000-sheet dual input (TTM)–tray 3 rear cable assembly 
removal” on page 4-219.
4.Remove the tray 3 front cable assembly. See “2000-sheet dual...

Repair information4-227
7500-XXX
2000-sheet dual input (TTM)–tray 3 mylar actuator removal 
1.Remove the tray 3 assembly. See “2000-sheet dual input (TTM)–tray 3 assembly removal” on 
page 4-217. 
2.Remove the tray 3 front cover. See “2000-sheet dual input (TTM)–tray 3 front cover removal” on 
page 4-218. 
3.Remove the tray 3 rear cable assembly. See “2000-sheet dual input (TTM)–tray 3 rear cable assembly 
removal” on page 4-219. 
4.Remove the tray 3 front cable assembly. See “2000-sheet dual input...

4-228MFP Service Manual 7500-XXX
2000-sheet dual input (TTM)–tray 4 front cover removal 
1.Remove the tray 4 assembly. See “2000-sheet dual input (TTM)–tray 4 assembly removal” on 
page 4-216.
2.Remove two screws securing the tray 4 front cover (A). 
3.Remove the tray 4 front cover (A) by moving it upward in the direction of the arrow.
4.Remove the four screws securing the bracket (B) to the tray.
5.Remove the bracket (B).
B
A 

Repair information4-229
7500-XXX
2000-sheet dual input (TTM)–tray 4 media transport assembly removal 
1.Remove the tray 4 assembly. See “2000-sheet dual input (TTM)–tray 4 assembly removal” on 
page 4-216.
2.Remove the tray 4 transport assembly (A). 
Note:  Before re-installing, insert the tray 4 transport assembly (A) into the rails of the frame assembly (B). 
A
B 

4-230MFP Service Manual 7500-XXX
2000-sheet dual input (TTM)–tray 4 rear cables removal 
1.Remove the tray 4 assembly. See “2000-sheet dual input (TTM)–tray 4 assembly removal” on 
page 4-216.
2.Remove the tray 4 front cover. See “2000-sheet dual input (TTM)–tray 4 front cover removal” on 
page 4-228.
3.Place the tray 4 assembly on its right side as shown in the figure. 
4.Remove the E-clip with a prying tool securing the tray lift cable pulley (A) to the tray lift shaft assembly (B). 
5.Gently move the...

Repair information4-231
7500-XXX
9.Place the tray 4 assembly back to its upright position.  

4-232MFP Service Manual 7500-XXX
10.Remove two E-clips with a prying tool securing the two small pulleys (F) on the rear of the frame assembly. 
11.Remove two small guides (G) and two small pulleys (F). 
12.Remove the tray 4 rear cables (D) from the bottom plate (H).
Note:  Before re-installing: 
—It is recommended that all four cables be replaced. 
—Ensure tray 4 rear cables (D) are not twisted or kinked. 
—Route the cables properly as shown in the figure. 
—Replace the cables by setting the frame...