Er ro r D et ec tio n an d R ec ov er y
2 2
Ge BE E + F Gm bH • ww w .oe m- pri nte r .co m • SM AN -E- 471 -V2 .3 • The rm al Pri nte r GPT -43 78 / 437 9
15 Er r or D et ec tio n an d R ec ov er y
Not every err or means that ther e is a printer err or that cannot be clear ed by the user .
Users will save time and money by r ecognizing and clearing simple err ors on their own.
The followin g tips are meant to help with this :
Har dwar e RESET :
T rigger ed by holding down the OFF/NEXT key for mor e than 3 seconds.
This causes the printer to be set to the parameters in the batch file TINIT -F or TINIT -E. Test printout: Is trigger ed by
holding down the FEED feed key for mor e than 3 seconds after r eactivation fr om power OFF ( switching of f with
the OFF/NEXT key).
Hexdump mode:
Is trigger ed by holding down the FEED key for mor e than 3 seconds after r eactivation fr om po-
wer OFF , if no paper is inserted. After the paper has been inserted, the printer prints the data it r ecieves as hex
numbers with the appr opriate ASCII code without interpr eting the data. This shows, which information the printer
"r eads" fr om the r ecieving data. In or der to leave the HEXdump mode, the FEED key has to be held down for at
least 3 seconds, while ther e is no paper inserted. After it leaves the HEXdump mode, the printer will pr ocess TINIT
for a r einitialization.
Sym pto m
Pos sib le Cau se
Rem edy
Pow er Sup ply
The prin ter see ms to be prin -
ting . Pap er is tran spo rted , but
is not blac ken ed.
Pap er: W r ong side tow ar d prin t hea d. Onl y
one side of the pap er can be prin ted on.
Inse rt pap er corr ectl y . The ther mos ens itive side sho uld be tur -
ned to the outs ide of the r oll (mo st of the time ). T ry the fing er
nail test : Dra g the tip of a fing er nail acr oss the pap er , pr ess ing
dow n. The frict ion hea t cau ses the ther mos ens itive side to bla-
cke n.
Prin ter can not be r eac tiva ted
by pr ess ing the FEE D key .
At the beg inni ng of prin ting , the
LED goe s out just brie fly
The prin ter only prin ts a few
dot s in one line .
The pap er feed wor ks, but the
self test doe s not .
No pow er .
Rec har gea ble bat tery :
not cha r ged .
Bat teri es:
not inse rted orar e emp ty
The pow er sup ply is not opt ima l.
Rec har gea ble bat tery :
not cha r ged .
Bat teri es:
emp ty , bad qua lity ,
no batt erie s inse rted .
Ext er nal pow er sup ply:
Cr oss -sec tion of
pow er feed ing line s to sma ll, Cur r ent outp ut
of the pow er sup ply too low .
Che ck pow er sup ply .
Rec har ge batt ery . The gr een LED sho uld ligh t up no late r than
afte r 1 min ute.
Bat teri es
: Dif fer ent qua litie s ar e ava ilab le. Onl y use batt erie s
that ar e able to sup ply high curr ents , and that hav e a high
ene r gy cap acit y .
Ext er nal pow er sup ply:
Use pow er sup ply with suf ficie nt di-
men sion and sho rt feed line s. Che ck all con nec tion s for pos -
sibl e tran sfer r esis tanc es. Sinc e high pea k curr ents occ ur with
ther mal prin ters , eve n the sma llest tran sfer r esis tanc es can r e-
sult in into lera ble volt age dr ops . In this cas e, no pow er sup ply
wou ld be str ong eno ugh .
The prin ter only prin ts a few
cha ract ers in one line . If mor e
is ente r ed, it stop s prin ting
com plet ely .
The prin ter load ed ove r nigh t
how eve r it prin ts only few or not
Ser ial Inte rfac e
Afte r a few cha ract ers, the prin -
tout star ts to be inco mpl ete.
The rech arge able batt ery is use d up or was
not corr ectl y load ed. Eac h ove r-dis cha rgin g
dam age s the batt ery stro ngly and lead s to a
loss of cap acit y.
Full y disc harg ed batt erie s can dist urb the cha rgin g in suc h a
way that it brea kes in at less than 30 min utes and swit che s to
pres erva tion cha rge. In this cas e plea se star t to cha rge aga in
by repu tting . Plea se alwa ys swit ch off the prin ters if they
leng then are not use d and plea se load them eve ry 3 mon ths.
The prin ter buf fer is "ove r -run " (256 byte s),
cau sing a loss of data . The prin t data tran s-
mitt er sho ws no r eac tion to han dsh ake .
Use or che ck han dsh ake . (sof twa r e: Xon / Xof f or har dwa r e:
CTS ). If nec ess ary: slow dow n tran smi ssio n spe ed, e.g. dow n
to 1,20 0 bau d.
The prin ter prin ts the wr ong
cha ract ers.
Inte rfac e pr oble m. The tran smi ssio n is faul ty .
(Ch arac ters of the upp er ar ea ar e prin ted. ).
W r ong data form at was set. ( "?" is prin ted
r epe ated ly .)
Use corr ect inte rfac e leve l (RS 232 , TTL ?).
Is the tran smi ssio n cab le too long ?
Sele ct the corr ect bau d rate thr oug h the men u. Che ck data
form at.
Ext er nal pow er sup ply:
Bad gr oun d con -
nec tion that cau ses a part of the prin ting cur -
r ent to flow thr oug h the inte rfac e cab le. This
lead s to an incr eas e in pot enti al ther e, whi ch
cau ses data corr upt ion.
Hos t sen ds a br eak sign al afte r prin t job
(onl y "?" ar e prin ted) .
Che ck and imp r ove gr oun d con nec tion . Fee d curr ent thr oug h
sho rt, thic k line s.
T ur n of f "fra min g err or ".
IrD A
The prin t spe ed is extr eme ly
slow with high bau d rate set-
ting s.
Blu eto oth ®
The prin ter can not be foun d in
the BT netw ork.
The hos t igno r es the "tur n-ar oun d time " set
by the prin ter .
Hos t sen ds a br eak sign al afte r prin t job (onl y "?" ar e prin ted) .
Pos sibl e und ervo ltag e at the BT tran smi tter
or the prin ter
Res tart tran smi tter .
T ur n of f prin ter and wai t for app . 5 sec ond s. Swi tch prin ter on
and wait for app . 10 sec ond s. The n sea r ch aga in.
US B
The prin tout stop s afte r a sho rt
time or is con stan tly r epe ated .
W r ong CO M por t sett ings
Set virtu al COM por t acc or ding to inst alla tion inst ruct ions .
