HP 2500 L Service Manual

							EN 5 Removal and replacement129
3
Remove one screw (callout 3) from the motor.
4 Remove one of the four screws that secures the rotary-drive assembly to the chassis 
(callout 4).
Figure 77. Removing the rotary-drive assembly (2 of 3)
2
2
3
4 
						

							130Removal and replacement C9706-90926 5
Face the top of the printer, and remove the other three screws that secure the rotary-drive 
assembly to the chassis (callout 5).
6 Lift the rotary-drive assembly straight up to remove it from the printer.
Figure 78. Removing the rotary-drive assembly (3 of 3)
Reinstall note
Insert the metal protrusion at the back of the rotary-drive assembly into the slot in the rear frame 
assembly and then lower the rotary-drive assembly into position over the alignment pins. Make 
sure that cables are not pinched.
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							EN 5 Removal and replacement131
Top plate
1Remove the following covers and assemblies:
right- and left-side covers (see page 93)
 interface cover (see page 98)
 formatter cage (see page 99)
 back cover (see page 110)
 top cover (see page 111)
2 Remove the air duct (see page 115).
3 Unplug the flat flexible cable (callout 1) from the laser/scanner.
4 Release the cables from one cable-holder (callout 2).
5 Unplug one cable connector (callout 3) by pressing and releasing the tab on the side of the 
connector.
6 Unplug five connectors (callout 4) from the dc controller.
Figure 79. Removing the top plate (1 of 2)
2
2
2
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2
3
4 
						

							132Removal and replacement C9706-90926 7
Unroute two cables (callout 5).
Note Examine the routing of the cables. If the cables are not reinstalled to their correct routing, then 
the cables can become pinched by other assemblies.
8 Unplug two connectors (callout 6).
9 Remove two screws at the left side of the printer (callout 7) and then remove the two 
corresponding screws from the right side of the printer.
Figure 80. Removing the top plate
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2
2
5
7
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							EN 5 Removal and replacement133
10
Remove four screws (callout 8) from the top plate.
Figure 81. Removing the top plate (3 of 3)
11Carefully lift the top plate off of the printer frame.
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							134Removal and replacement C9706-90926
Print-cartridge carousel
1Remove the following covers and assemblies:
right- and left-side covers (see page 93)
 interface cover (see page 98)
 formatter cage (see page 99)
 back cover (see page 110)
 top cover (see page 111)
 air duct (see page 115)
 rotary-drive assembly (see page 128)
 top plate (see page 131)
2 Remove two screws (callout 1) from the back of the printer.
Figure 82. Removing the print-cartridge carousel (1 of 5)
Reinstall note
Because the remainder of the print-cartridge carousel removal procedures are performed from 
the left, right, and front of the printer, it is easy to forget to replace the two screws at the back of 
the printer.
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							EN 5 Removal and replacement135
3
Press the white plastic tab (callout 2) at the left side of the printer to release the left swing-
shaft bushing, and then rotate the bushing to a vertical position.
Figure 83. Removing the print-cartridge carousel (2 of 5)
4On the right side of the printer, perform the action described in step 3 on the black, right 
swing-shaft bushing.
CAUTION The right swing-shaft bushing is thin and delicate and is easily broken. Be very careful in rotating 
the bushing in either direction.
22 
						

							136Removal and replacement C9706-90926 Examine the positions of the left pressure-shaft holder (callout 3), the right pressure-shaft holder 
(callout 4), and the pressure-shaft gear (callout 5) before you perform step 5. The pressure-shaft 
holders must be reinstalled to their correct positions when reinstalling the print-cartridge 
carousel.
5
Use the flatblade screwdriver to pry two white tabs on the pressure-shaft holders from their 
seated positions in the rear frame assembly.
Figure 84. Removing the print-cartridge carousel (3 of 5)
6Lift the print-cartridge carousel out of the printer.
2
2
2
3
4
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							EN 5 Removal and replacement137
Reinstall notes
Make sure that the “feet” of the pressure-shaft holders fit into the slots in the rear frame 
assembly. After the  “feet ” reinstalled correctly, press the tops of the white tabs firmly into position.
Also make sure that the tab on the pressure-shaft gear points down.
Correct Incorrect 
						

							138Removal and replacement C9706-90926 Check to see that the gears in the print-cartridge carousel are aligned correctly before placing 
the carousel back into the printer.
1
Rotate the carousel so that the marker for the yellow print cartridge faces the front of the 
printer. 
2 Examine the gears: two marks on the smaller gear should line up with the single mark on the 
larger gear (see the detail of the gears in figure 85).
Note The single mark on the larger gear is adjacent to the slot for the black cartridge, marked with a  “K. ”
3 If the gears are not aligned correctly, locate the marks on the gears and realign the gears.
Figure 85. Reinstalling the print-cartridge carousel