Human Humalyzer 2000 - Internal Printer

10 Rev. B
Internal Printer
The internal printer is a 20-column thermal type device which prints ASCII characters using a
5 x 7 dot matrix. There are no adjustments. However, a printer jam can occur if the printer
paper tears and becomes lodged in the printer mechanism, thus preventing the print head from
moving freely. If the instrument displays “Printer is jammed!”, or if the print head does not
return to the home position, check for obstructions in the print head path..
CAUTION
Do not apply any force to the white ceramic print head! Do
not scratch the platen or pry with sharp objects. This will
destroy the printer!
Carefully remove any paper or debris with a pair of tweezers. Turn off the power switch, wait 5
seconds, then turn on the power switch. The print head should move to the right side and then
return to home position at the left.
An alternate method of removing a particularly stubborn wad of paper is to move the print head
manually. To do this, remove the rear dress panel. Look at the front of the printer mechanism.
Locate the small gear on the right side which turns the grooved steel print head shaft. Turn the
gear so that the print head moves away from paper wad and the paper can be easily removed.
Turn the power switch off and back on again as described above.
İ
Home
position
| Print head is jammed
against wad of paper
Turn this gear to
Print head shaft Print head .
move print head
Figure 5. Clearing printer jams
Humalyzer 2000 Service Manual