Service manual

LA600 Field Service Manual
Digital Equipment Corporation Page 3-3
LA600 Field Service Manual
Part: Printer Engine LA600 DEC P/N: 29 31790-01.A01
Part No: 5112 292 62901
REMOVAL
Set the printer into "LOCAL MODE"
Disconnect the system interface cable
Remove the ribbon cartridge
Switch the printer off and disconnect the mains cable
⇒ Remove all encasing parts
⇒ Remove the personality module (A)
⇒ Remove the plastic insert of the memory card
interface (B)
⇒ Loosen screw (C)
⇒ Remove screws (D)
⇒ Disconnect the Device Electronic (E)
⇒ Disconnect the Control Unit (F)
⇒ Loosen the fixation screws of the power on
switch and remove it (G)
⇒ Swivel the printer as shown in figure 2.
Note: For protection of the operator panel please use a part of the
packaging material of the new printer engine as support.
⇒ Shift the entire Electronic Subassembly
to the left. (1)
⇒ Swivel it in the direction towards you
and remove it from the printer
engine. (2)
REASSEMBLING
Unpack the new printer engine
Execute the REMOVAL procedure with the new printer engine in reverse
direction.
⇒ Change the print head from the "old" printer engine into the "new"
one.
⇒ Perform an AGC Adjust procedure
⇒ Adjust the parameter "Paper In Adj." to the value indicated on
the field service instruction attached to the new printer engine.
⇒ Perform "PRINT TEST 3" and check for proper operation of
the printer.
Note: Take a note of the value of the page counter (PGCNT) on the
FRU-label of the new printer engine.
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