Print Head - CPG Compuprint SP 40 Maintenance Manual

Maintenance Manual
2.3

Print Head

DANGER :
To prevent serious personal injury from electrical shock always turn off the printer and unplug
the power cable before remove the print head.
CAUTION:
The print head may have hot surface. Wait for it to cool down.
ATTENTION: Only the two allen screws have to be unscrewed to remove the print head.
AGA wheel position. (Adjustment done at manufacturing level).
Removal
1) Open the top cover.
2) Pushing the proper green lever rise up the upper part of machanical assy (like in figure 2.3).
3) Put the Print Head in a center position.
4) Remove the ribbon guide from the print head (figure 2.4) and then remove the inked ribbon cartridge.
5) Remove the print head safety cover (item 23 of figure 2.5) by manually acting on its left and right hooks.
6) Unscrew the two allen screws (item 24 of figure 2.5) securing the print head to the carriage with the flat
and stars washers.
7) Extract the print head (item 22 of figure 2.5) from the carriage assy.
8) Unplug the flat cables from the print head and remove it.
Replacement
To install, follow the removal step in reverse order.
Remark:
When reassembly the print head, before to secure the screws, pay attention for the correct position of the print
head. This is assured by two lateral pins on the metal part of the print head that fit together print head with the
carriage assy.
Secure the screws allen type with a driving torgue of 7 Kg/cm.
Rev. 005
Do not touch other three screws on the print head that are fixing the correct
Figure 2.3 - Rise up Upper Mechanical Assy
16
SP 40
Chapter 2
Removals