Printer Self Repair

Disassembly and Assembly of CSF Bin

This section describes procedure for disassembling and assembling the operational cut sheet feeder. In general, you can install a component in the CSF simply by reversing the procedure for removing. Therefore, this section dose not describe assembly procedures in most cases. If necessary, special notes on assembling a component are given at the end of description of each procedure.

4.2.10.1 Disassembling the Right Side Block

1. Remove the CFS gear cover by pushing and releasing the 4 clips in the following figure.

Figure 4-37. Releasing the clips for the CSF Gear Cover

2. Remove three CPB tight (3x12) screws securing the stepping motor to the CSF frame.

3. Disconnect connector CN1 from the CSF board assembly, ans then remove the stepping motor.

4. Remove one CPB tight (3x12) screw securing the CSF board assembly, and disconnect connector CN2.

5. Remove the CSF board assembly by releasing one clip fixing the CSF board assembly to the right CSF frame.

6. Remove the 13 gears mounted on the right CSF frame.

Figure 4-37. Releasing the clips for the CSF Gear Cover

,CSF Gear Cover

Gear 29

Driven Transmission Gear

Gear 30

Combination Gear 20/33.5

Combination Gear 8.5/33

Gear 18

Gear 15 Qea'r 5 5 Paper Eject Transmission Gear A

Figure 4-38. Engaging 13 Gears

Gear 18

Gear 29

Driven Transmission Gear

CSF Planetary Lever Assembly

Paper Eject Driven Transmission Gear

Gear 30

Combination Gear 20/33.5

Combination Gear 8.5/33

CSF Planetary Lever Sub Assembly Gear 10

Gear 15 Qea'r 5 5 Paper Eject Transmission Gear A

Figure 4-38. Engaging 13 Gears

/CHECK POINT

M Be careful of the cable alignment for the CN1

connector cable and earth cable, u Align those cables as shown in the following figure. If these cables are not aligned properly, the CSF gear cover cannot be assembled properly.

Right CSF Frame CN1

Figure 4-39. Cable Alignment

Figure 4-39. Cable Alignment

4.2.10.2 Disassembling Paper Support Block Assembly

1. Remove the CSF gear cover. (Refer to Section 4.2.10.1.)

2. Remove the stepping motor. (Refer to step2 and 3 in the Section 4.2.10.1.)

3. Remove one E-ring fixing the right edge of the paper feed shaft.

4. Remove

5. Remove

Figure 4-40. Removing the E-ring the gear 29 from the right edge of the paper feed Paper Feed Shaft

Figure 4-40. Removing the E-ring the gear 29 from the right edge of the paper feed Paper Feed Shaft

Figure 4-41. Removing the Gear 29

the paper feed shaft pulling it toward the right side.

6. Remove one CSF tight (3 x 8) screw securing the paper support shaft to the right CSF frame, as shown in the following figure.

7. Remove the paper support assembly along with the paper support shaft and paper shaft holder by pulling upward.

Paper Support Assembly

Figure 4-42. Removing the Paper Support Assembly

Figure 4-42. Removing the Paper Support Assembly

8. Remove both paper feed roller from both paper support assemblies.

9. Remove both paper loading roller cover assemblies by releasing the clips fixing them to the paper support assembly.

Paper Loading Roller Cover

Paper Support Assembly

Paper Loading Roller Cover

Figure 4-43. Removing the Paper Loading Roller Cover Assembly

10. Remove the paper support shaft by pulling it toward the right or left side.

11. Remove the paper holder spring.

/check point

Be sure to assemble the paper feed roller into the proper side. Because, the right and left rollers are not interchangeable each other.

4.2.10.3 Removing the Paper Eject Assembly Cover

1. Remove the paper assembly cover by releasing two clips located along both edges of the paper eject assembly cover, as shown in the following figure.

Paper Eject Assembly Cover Figure 4-44. Removing the Paper Eject Assembly Cover

/check point

When attaching the paper eject assembly cover to the CSF unit, pay attention to assemble the position of 2 pieces of thin plastic film glued on the reverse side of the paper eject assembly cover, as shown in the following figure.

Paper Eject Assembly Cover Figure 4-44. Removing the Paper Eject Assembly Cover

Plastic Film

Figure 4-45. Plastic Film Located Position

Figure 4-45. Plastic Film Located Position

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