CWT Compact S2 Installation & Maintenance Manual
Visible paper dust should be blown off regularly (at least once per year), especially from the black mark and paper-out opto-sensors.
| CAUTION ! – Deposits accumulating on the row of heating points on the print head will negatively affect the thermal head’s cooling which might damage or destroy the print head. |
The print head must be cleaned regularly. The frequency of cleaning depends on factors such as paper quality, the type of pre-printing on the tickets, and the degree of air pollution.
1.Remove the presenter rolls assembly (see Front pressure rollers replacement).
2.Remove the presenter table (see Presenter table replacement).
3.Remove the cutting blade (see Cutting blade replacement). Take care because the blade may be greasy!
4.Use an air blower to get rid of dirt and small paper particles inside the printer.
5.Check that the presenter sensor, the black mark/paper out sensor, and the cutter home sensor is clean (marked with red arrows in Figure 54).
6.Moisten a lint free piece of cloth (non-woven textile is recommended) or a piece of paper with platen cleaner solvent usually available on the market.
7.Wipe off the presenter feed rolls and the platen (see yellow arrows in Figure 54) while rotating them. Ensure that there are no paper particles left.
8.Wipe off the row of heating points (blue arrow in Figure 54) on the print head using isopropyl alcohol.
9.Assemble removed parts as described in sections 8.2.4, 8.2.6 and 8.2.7.
10.Check that the document exit shutter is in the correct position before reinstalling the printer.
