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RICOH FT4421
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of RICOH FT4421 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 218 (click to view)
1 December 1990

4.7 ENTRANCE SEAL REPLACEMENT
[A] [B]

[C] [I]

[H]
2.5mm

[F] [G]

[D]
� �

[E]

1. Remove the cleaning unit and the following parts: Cleaning Blade Cleaning Brush 2. Remove the used toner. (See Used Toner Collection.) 3. Clean the cleaning unit with a vaccum cleaner.

4. Remove the entrance seal [A] together with the strip of 2-sided tape securing it to the lower casing. 5. Clean the lower casing [B] with alcohol; make sure that no tape remains on the casing surface. 6. Place a new strip of 2-sided tape [C] on the lower casing surface. The lower edge [D] of the tape must be flush with the edge [E] of the projection as shown in the illustration. 7. Place the new entrance seal on the 2-sided tape. Extend the seal so that both edges [F] align with the edges [G] of the tape. NOTE: a) The lower edge [H] of the entrance seal must be aligned with the edge [E] of the projection on the lower casing. b) Make sure that there are no waves in the upper edge [I] of the entrance seal.

5-42

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