Pentax 203125 - PocketJet II B/W Direct Thermal Printer, User Manual

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Page 35
Chapter 4 - Maintaining the Printer
Cleaning the Print Head
To maintain high print quality, clean the print head after 200 to 300
prints or whenever you detect broken or light characters on the page.
NOTE: Defective or wrinkled paper can also cause broken or light
characters. If the problem does not go away after you clean
the print head, try a different sheet of paper or a higher
density setting.
1. Make sure the printer is off.
2. Set the Cleaning Mode to ON using DIP switch 4 as shown in Figure
17. With Switch 4 in the OFF position, the other three switches have
no effect.
FIGURE 17. Setting the DIP switches for Cleaning Mode
3. Press the main switch once quickly to turn the printer ON, and then
press the main switch once again quickly to start the printer platen
roller turning.
4. Insert the black cleaning cloth that came with the printer into the
printer’s paper input slot with the rough black side, which contains
the cleaning material, towards the rear of the printer. The printer
pulls the cleaning cloth through. See Figure 18.
CAUTION: If paper is in the printer when Cleaning Mode is
initiated or during Cleaning Mode operation, a printer
system error will result.
5. The roller may be stopped by pressing the main switch briefly once
more. Otherwise, the roller movement will stop automatically after
about 40 seconds. In either case, the printer remains in Cleaning
Mode until the printer is turned OFF, the Cleaning Mode is disabled
by resetting the DIP switch, and the printer is turned back ON.