Service manual

8-1
8 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
Y M 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: 16 Mio characters (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 User's Manual, chapter 2)