Service manual

LA600 Field Service Manual
4 Wearing Parts
This chapter describes the removal procedures which are necessary for proper
handling of the wearing parts of the printer.
Note:
All removal procedures consists of several steps indicated with a:
to show preparation and
⇒ to indicate the main removal steps.
In terms of preventive actions for keeping the printer running, following
operation for the life time of wearing parts is given:
- Ribbon Cartridge: 10,000 - 15,000 pages (draft quality)
- Print Head: > 350,000 pages
- Platen Assy: > 800,000 pages
- Pick up Rolls: > 200,000 pages
Recommendation for cleaning:
- Transport Rolls, Platen Assy, and Pick up Rolls every
50,000 Pages
Note: Number of pages printed can be obtained from print out of
’PRINT TEST 3’, parameter ’PGCNT’ (see Installation and User
Guide, chapter 8)
Digital Equipment Corporation Page 4-1
LA600 Field Service Manual
Part: Platen Assy DEC P/N: LA60X-PN
Part No: 5112 292 38010
To Remove the Platen (2)
Switch the printer OFF.
Lift and remove the output stacker.
Lift and remove the top cover.
Remove the Ribbon cassette.
⇒ Position the print head to the very right.
⇒ Release the plastic platen clamp (1) on the left platen
mounting.
⇒ Move platen (2) approximately 10 mm to the left, lift the
left end of the platen free of its mounting and withdraw the
platen from the right mounting.
⇒ Lift the platen to the left underneath the print head and
take it out.
Page 4-2 Digital Equipment Corporation