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a. On the left side, near the ribbon drive motor, remove the 2 screws holding the aluminum profile through
the rubber mounts. Note that the metal spacer sleeves are through both rubber mounts and that a star and
flat washer are on the front screw.
b. Rotate the ground strap upwards and use a small (P1) Phillips screwdriver tip to remove the one small
screw holding the location of the black plastic sensor block.
c. Drop the left end of this profile toward the Cut Sheet paper door surface.
6. Loosen the left end of the small diameter carriage support shaft:
a. Remove the left end screw, ground strap and washer from the shaft.
b. If there is an adjustor on the right end of the small shaft, mark the position of the adjustor to the side
frame. Loosen the screw on the right end of the small shaft; do NOT remove.
c. Flex the left side frame to allow dropping the left end of shaft and taking the bronze bushing from the
carriage.
7. Position the carriage assembly just to the left of the cable clamp on the aluminum profile. Rotate the carriage
downwards to move the ribbon mask away from the platen. Use the small shaft to hold the carriage
downwards to gain good access to the front of the carriage.
8. Remove the old ribbon mask:
a. Pull off the damaged ribbon mask.
b. Wet a cloth with Isopropyl alcohol and wet the adhesive. This will soften the adhesive. Use a flat blade to
scrape the softened adhesive. Note: Do NOT scratch the aluminum casting.
c. Wipe the remaining adhesive with the solvent. Repeat the scraping and wiping process until all of the
adhesive is gone.
9. Install the new replacement ribbon mask:
a. Peel off the protective layer from the new ribbon mask, exposing the adhesive layer.
b. Carefully align the lower edge of the mask into the carriage casting and press into contact.
c. Verify that the mask is smooth with the casting surface. Carefully align the upper section along the crease
of the lower section and in the casting.
Note: If the mask is NOT smooth with the casting surface it will catch the edges of the paper. Pull the
mask off and install another new mask.
Chapter 5. Removals and Adjustments
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Содержание 4247
Страница 1: ...4247 Printers Maintenance Information Document Number SA24 4400 05 Part Number 27P8450 IBM ...
Страница 241: ...e90apc15 Figure 24 Main Input Power Supply Ground Chapter 3 Circuit Diagrams 241 ...
Страница 257: ...Figure 32 Stacker Motor Wiring Chapter 3 Circuit Diagrams 257 ...
Страница 261: ...Stacker Cable Wiring Figure 36 Tractor Assembly Cable Wiring Chapter 3 Circuit Diagrams 261 ...
Страница 266: ...Locations and Orientations Logic Board Microcode Module Locations and Orientation Model A00 Chapter 4 Locations 266 ...
Страница 348: ...7 Remove the side cover screws and side covers Figure 96 Top Cover Chapter 5 Removals and Adjustments 348 ...
Страница 498: ...Table 75 Store Mode Quit Save Current Manufacturing Default Appendix A Printer Configuration 498 ...
Страница 501: ...E90AX003 Figure 196 Coax Configuration Printout Part 1 of 2 Appendix A Printer Configuration 501 ...