Service manual

LA600 Field Service Manual
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Digital Equipment Corporation Page 3-45
LA600 Field Service Manual
Installing the new print head (5)
Ensure that the printer is switched OFF. For print head installation, the carriage
should be aligned with the cut-out on the paper guide plate (green insert).
(Same position as for Removal procedure).
⇒ Hold the print head (5) in its mounting position and press it against
its stop in direction of the platen. The two noses (9) of the
adjustment guide (8) support this procedure.
Note: Older versions of the print head are mounted with clamps instead
of the adjustment guide (8)
⇒ Now tightening the two captive screws (6) (first left, then right).
⇒ Reconnect the print head cable (4) and fasten it with the
enclosed spring on the on the top of the print head.
Switch printer ON and insert the ink ribbon cassette
(3).
Refit the top cover (2) and the output stacker (1).
PM AGC: (s. Installation and User Guide, Chapter 3)
Run the MENU-function AGC ADJUST with ribbon cassette installed but
without paper loaded
Note: Please record on the tag accompanied to the print head replaced:
- PGCNT (Number of pages printed can be obtained from print
out of ’PRINT TEST 3’, parameter ’PGCNT’ (see
Installation and User Guide, chapter 8))
- Printer Serial Number
each time a print head is replaced!
Page 3-46 Digital Equipment Corporation