Avery Berkel CX20 SERIES, Service Manual

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19 — Receipt Printer
19–6 CX20/CX30/CX34 Service Manual
19.3.4 Fitting the printer (CX34)
To fit the printer complete with unit spine, proceed as follows:
1 Fit printer and unit spine to chassis by fitting two bolts, shakeproof
washers and plain washers.
2 Carefully ease free end of electrical looms and cables through hole in
chassis (to main PCB side).
3 Connect following electrical connections on main PCB and ensure a
natural positioning of all cables without mechanical strain:
PL3, printer data supply
PL7, printer motor supply
PL16, microswitch
4 Fit front housing (refer to Section 3).
19.3.5 Cleaning the print head
To clean the print head use the special cleaning kit (see Parts List for Part
Number) and carefully follow the instructions provided with the kit.
19.3.6 Changing the print head
Caution
The print head is made of precision–manufactured
materials and must not be scratched or scored. Avoid
any contact with metal objects (such as a screwdriver
blade).
IMPORTANT:
While the print head is under warranty
do not dismantle print
head as this will invalidate the warranty.
To change the print head, proceed as follows:
1 Remove printer complete with spine from unit as detail in Sections
19.3.1 and 19.3.3, as appropriate.
2 If fitted, remove paper roll.
3 Remove printer complete with printer bracket from spine bracket by
removing two nuts (with integral shakeproof washers).
4 Remove printer from printer bracket by removing four sets of screws,
shakeproof washers and plain washers.
5 At each side of printer case, detach springs from retaining rod (use
snipe–nose pliers, spring loops are located in grooves of retaining rod).