UBI EasyCoder 401 ? Technical Manual CONTENTS
UBI EasyCoder 401 ? Technical Manual CONTENTS
UBI EasyCoder 401 ? Technical Manual CONTENTS
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>UBI</strong> <strong>EasyCoder</strong> <strong>401</strong> – <strong>Technical</strong> <strong>Manual</strong><br />
LABEL-TAKEN SENSOR, cont'd.<br />
Adjusting the Sensitivity<br />
1 /. The intensity of the light emitted from<br />
the LTS can be adjusted by means of a<br />
strap on P-607 on the CPU Board:<br />
No strap = weaker<br />
Strap = stronger<br />
❑ The sensitivity of the label-taken sensor can be adjusted by<br />
means of a potentiometer situated on the CPU board, as described<br />
in the chapter “Electronics; Potentiometers” later in this<br />
manual1 .<br />
CAUTION!<br />
Since the adjustment must be performed with the power on, take<br />
utmost care to avoid any risk of electrical shock or shortcircuits.<br />
Only use a non-conductive screwdriver and keep the<br />
fingers away from the CPU board and the area behind it, where<br />
the mains inlet and mains switch are situated.<br />
❑ You can adjust the potentiometer randomly and check if it is<br />
working properly by trying to print a label without removing the<br />
previous one. Also check that you can print a label when there<br />
is no label left under the LTS. Use the trial-and-error method<br />
until the LTS works properly.<br />
❑ Another way is to make a simple <strong>UBI</strong> Fingerprint program that<br />
checks the printer's status using the PRSTAT function (also see<br />
<strong>UBI</strong> Fingerprint manuals). Here is an example on how such a<br />
program can be made:<br />
10 BREAK 1,88<br />
20 BREAK 1 ON<br />
30 ON BREAK 1 GOSUB 1000<br />
40 FORMFEED<br />
50 IF (PRSTAT AND 2) THEN BEEP<br />
60 GOTO 50<br />
70 END<br />
1000BREAK 1 OFF<br />
1010GOTO 70<br />
RUN<br />
You can break this program by transmitting the character X<br />
(ASCII 88 decimal) on the standard interface "uart1:".<br />
• Leave the label, ticket etc. in the outfeed slot.<br />
• The sensor is properly adjusted when the printer beeps<br />
continuously. Turn the potentiometer screw a quarter of a<br />
turn in each direction. The beeping should not stop.<br />
• Remove the label and the beeping should cease at once.<br />
• If necessary, adjust the potentiometer until the label-taken<br />
sensor works as described above.<br />
• When adjusting the potentiometer, always create a safetymargin<br />
by turning the adjustment screw a quarter of a turn<br />
further after the beeper has started or ceased to sound.<br />
❑ Close the cover.<br />
Continued!<br />
42
Change language