DPP-EX5 - Sony Other Service Manuals Service Manual (repair manual). Page 37

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DPP-EX5 V1

The troubles caused by a mechanical deck can be mainly classified into the following.

1.

Any paper cannot be fed normally. (Paper feed/eject trouble)

2.

Any ink ribbon cannot be fed normally. (Ribbon trouble)

3.

Printing cannot be performed normally. (Print trouble)

The cause and remedy of each trouble are described below.

Trouble:

. No paper is ejected from the paper feed tray.
. Paper is ejected from the paper feed tray, but it stops halfway.

Cause:

Perform the mode transition operation in MECHANIC TEST and confirm whether the UP

plate operation is normal. (Tap MODE RESET)
Normal:

The chassis assembly is abnormal.

Abnormal: The paper feed block (K (paper feed) frame assembly) is abnormal.

Remedy:

. Clean (wipe with dry cloth) if the paper feed roller and separation roller are dirty due to an

abnormal paper feed block.

. Replace the K (paper feed) frame assembly if the paper feed roller and separation roller are

not dirty.

. Replace the chassis assembly if it is abnormal (the mode gear is damaged).

Trouble:

. Paper is fed normally, but it is ejected as blank paper.
. Multiple sheets of paper are fed continuously. (Multiple paper feed)

Cause:

Incorrect paper detection.

Remedy:

. Confirm the fixing state of the PE-44 and JD-44 boards.  Replace the PE-44 and JD-44

boards if the state is normal.

Trouble:

Paper is folded inside a printer and cannot be taken out. (Paper jamming)

Cause:

. Abnormal ribbon cassette.
. Abnormal paper feed block. (e.g., Separation plate deformation and damage)

Remedy:

. Remove the mechanical deck block from the lower cabinet and eliminate the paper.
. Replace the K (paper feed) frame assembly if the paper feed block is abnormal.
n
The ribbon cassette is judged to be abnormal when no abnormality is detected in a paper feed

block.  Confirm the ribbon cassette. (e.g., Ribbon rewind and counter wind)