20 — Label and Receipt Printer
20–6
CX20/CX30/CX34 Service Manual
20.3
Servicing
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).
20.3.1
Removing the printer (CX20/CX30)
To remove printer complete with unit spine, proceed as follows:
1
Switch off machine and isolate it from the power supply.
2
Remove case (refer to Section 3).
3
Remove main PCB as necessary to gain access for following
operations (refer to Section 11).
4
If not already disconnected, disconnect following electrical connections
on main PCB:
PL6, printer data supply
PL7, printer motor supply
PL16, photodetector
5
Remove printer and unit spine by removing two sets of Posidrive
screws, shakeproof washers and plain washers securing spine to
chassis.
20.3.2
Fitting the printer (CX20/CX30)
To fit printer complete with unit spine, proceed as follows:
1
Fit printer and unit spine by fitting two sets of Posidrive screws,
shakeproof washers and plain washers securing spine to chassis.
2
When fitting main PCB (Step 3), connect following electrical
connections on main PCB and ensure a natural positioning of all cables
without mechanical strain:
PL6, printer data supply
PL7, printer motor supply
PL16, photodetector
3
Fit main PCB (refer to Section 11).
4
Fit case (refer to Section 3).
5
Two overload stops below cross assembly have been disturbed by
these procedures, so unit must be adjusted (refer to Section 7.2.1).
Summary of Contents for CX20 SERIES
Page 258: ...PL 1 CX20 CX30 CX34 Service Manual Section PL Parts List ...
Page 284: ......
Page 287: ......
Page 317: ...Addendum A Phase 1 4 and CX34 Parts List A 30 CX20 CX30 CX34 Addendum A ...
Page 318: ......
Page 321: ......
Page 323: ...Contents B 2 Addendum B ...
Page 343: ...Addendum B Phase 1 5 1 5 3 and New Main PCB B 22 Addendum B ...
Page 344: ......
Page 347: ......
Page 351: ...PL Parts List Devlin Keyboard C 6 Addendum C ...
Page 352: ......