Product End-of-Life Disassembly Instructions
Product Category: LaserJet Printers Marketing Name / Model [List multiple models if applicable.] HP 1500 Sheet Feeder (Q2444B)
Purpose: The document is intended for use by end-of-life recyclers or treatment facilities. It provides the basic instructions for the disassembly of HP products to remove components and materials requiring selective treatment, as defined by EU directive 2002/96/EC, Waste Electrical and Electronic Equipment (WEEE). 1.0 Items Requiring Selective Treatment 1.1 Items listed below are classified as requiring selective treatment. 1.2 Enter the quantity of items contained within the product which require selective treatment in the right column, as applicable. Quantity of items Item Description Notes included in product Printed Circuit Boards (PCB) or Printed Circuit Assemblies (PCA) Batteries Mercury-containing components Liquid Crystal Displays (LCD) with a surface greater than 100 sq cm Cathode Ray Tubes (CRT) Capacitors / condensers (Containing PCB/PCT) Electrolytic Capacitors / Condensers measuring greater than 2.5 cm in diameter or height External electrical cables and cords Gas Discharge Lamps Plastics containing Brominated Flame Retardants [Not Present] [Not present] Plastic parts installed in close proximity to heating/fusing units and paper path parts contain brominated flame retardants. Further, industry standard parts including fans, motors, cables, connectors, wiring and printed circuit boards also typically contain these flame retardants. [Not present] EL-MF877-00 Template Revision A With a surface greater than 10 sq cm 1500 Sheet Feeder All types including standard alkaline and lithium coin or button style batteries For example, mercury in lamps, display backlights, scanner lamps, switches, batteries Includes background illuminated displays with gas discharge lamps [Not present] [Not present] qty/model 0 molded plastic parts:

0 all motors, Page 1

fans, connectors, wiring and PC boards Components and parts containing toner and ink, including liquids, semi-liquids (gel/paste) and toner Components and waste containing asbestos Components, parts and materials containing refractory ceramic fibers Components, parts and materials containing radioactive substances Include the cartridges, print heads, tubes, vent chambers, and service stations. [Not present] [Not present] [Not present] [Not present] 0
2.0 Tools Required List the type and size of the tools that would typically be used to disassemble the product to a point where components and materials requiring selective treatment can be removed. Tool Description Tool Size (if applicable) Use standard hand tools.
3.0 Product Disassembly Process 3.1 List the basic steps that should typically be followed to remove components and materials requiring selective treatment: 1. 2. 3. 4. 5. 6. 7. 8. Remove the outer housing skins and sort according to markings. Disassemble the chassis using appropriate tools and set aside items requiring selective treatment.
3.2 Optional Graphic. If the disassembly process is complex, insert a graphic illustration below to identify the items contained in the product that require selective treatment (with descriptions and arrows identifying locations).
EL-MF877-00 Template Revision A

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Procedures
HP Color LaserJet 1500/2500/2550 Carousel Indexing Procedure
Occasionally problems arise needing special instructions. One key problem seen on the 1500/2500/2550 Series shows itself by difficulty in installing or removing toner cartridges, images fading from one side to the other, or blank pages without error code display. These symptoms could be caused by rough handling while installing or removing toner cartridges. Rarely needed, straightening the tabs of the rotary drive assembly solenoid plate might be required if this procedure does not cure the symptoms. Removing the imaging unit
1. Open the top cover. 2. Grasp the middle of the imaging unit as shown in Figure 1. 3. Push the unit rearward to position it for removal (top photo). 4. Lift the imaging unit from the machine (bottom photo). CAUTION: When handling the imaging unit, be careful not to touch the transfer belt at the base of the assembly.

Removing side covers

NOTE: The following procedure applies to either side cover.
2007 Don Thompsons Service Seminars
Figure 1. Removing the imaging unit from the Color LaserJet 1500/2500.
Color Laser Printer Issues
1. Remove one 3-mm panhead screw from the lower hand-hold of the side cover shown in Figure 2, top photo.
Figure 3. Removing the I/O cover from the HP Color LaserJet 1500/2500/2550. Side Cover Screw Location
top of the I/O cover as shown in Figure 3, left photo. 2. Using your finger, unhook the plastic latch at the inside top I/O position under the rear cover. Figure 3, left photo. 3. Pull the I/O cover rearward at the top and lift the cover from the foot at its bottom. Figure 3, right photo.
Figure 2. Removing the right side cover from the HP CLJ 1500/2500/2550.

Removing rear cover

1. Pry under the plastic latch, one at each upper corner of the rear cover as shown in the upper photo of Figure 4. 2. Rotate the top of the rear cover back, then lower the cover from the machine as in the lower photo of Figure 4.
2. Pull outward slightly at the base to free the side cover at the bottom. 3. Lift the front edge of the side cover to unhook plastic latches along the top edge of the side cover. Figure 2, bottom photo.

Removing top cover

1. Open the top cover and unhook the tab on the cover rack gear shown in Figure 5 and remove

Removing I/O cover

1. Unhook the plastic latch at the
the gear from below the rack. 2. Free the top cover rack from its guide pin. 3. Remove three top cover screws, one on the left and two on the right as shown in Figure 6.
Figure 4. Removing the rear cover from the HP Color LaserJet 1500/2500/2550.
Figure 6. Removing three screws (one shown by the white arrow on the right frame) from the top cover of the HP Color LaserJet 1500/2500/2550.
4. Lift up on the top cover assembly and remove it from the machine.
Re indexing carousel gears
1. Locate the rotary drive assembly solenoid at the top right of the printer, shown in Figure 7. 2. Using a small tool as shown in Figure 7, lift and suspend the solenoid plate to release the carousel lock. 3. While holding the rotary drive as

Figure 5. Tab (arrow) to release for removing the top cover rack gear.

Solenoid

Figure 7. Releasing the rotary drive assembly solenoid of the HP Color LaserJet 1500/2500/2550.
Figure 9. Correct carousel indexing for right (top) and left (bottom). Note the two inward facing pins of white gears should span the carousel index mark on each side.
Figure 8. Rough carousel indexing prior to checking indexing in Step 4.
4. Under each side of the carousel, observe the indexing marks as shown in Figure 9. NOTE: Each side must be indexed according to Figure 9. Chances are one or both are indexed incorrectly based on the original symptoms.
5. Grasp the black carousel gear and pull it inward while pushing outward on the white gear. When the gears separate enough to skip teeth, rotate the white gear around in the proper direction to correctly index the carousel. 6. Repeat Step 5 for the opposite side of the carousel if needed. 7. Recheck indexing and repeat Step 5 for correction if needed. 8. Reassemble the printer and test.
sembly solenoid plate suspended, move the carousel to the position shown in Figure 8.