HP 82153A, Owner'S Manual, Page: 18 / 71

HP 82153A - Wand Owner Manual - page 20
2. If the checksum error condition persists, bypass the row by pressing the
SST
key. The display will
then prompt for the row following the bypassed row and you can continue scanning the program. (If
the error condition occurs in the last row of bar code in a program, press instead of
SST
.) After
you scan the last row of the program. identify the bypassed program instructions by comparing the
program in the HP-41C with a written listing of the same program. (Where the printed program line
numbers indicate that a numbered program instruction begins on a row you scanned and ends on a
row you bypassed, that entire program instruction is bypassed.) Then go to the place in program
memory where the missing instructions belong and load them using the paper keyboard or the
HP-41C’s keyboard.
Note: The system uses a running checksum to monitor program bar code rows for scan errors.
When you bypass a row of program bar code and resume scanning with the following row, the
checksum monitoring system assumes that the row scanned after the bypassed row was correctly
read. When you scan the second row after the bypassed row, normal running checksum
monitoring is reinitialized to the correct running value. For this reason you should compare the
instructions in program memory with a listing of the program to be sure the series of instructions in
the row following the bypassed row were read correctly.
Scanned row,
checksum monitored.
ROW 4 (16 – 20)
Bypassed row,
(press
SST
).
ROW 5 (20 – 32)
Scanned row, check-
sum assumed correct.
ROW 6 (33 – 36)
Scanned row, check-
sum monitor resumes.
ROW 7 (36 – 40)
W: DATA ERR
Data error. The data just scanned is out of the calculator’s range, or there is an illegal character recorded
in the data barcode line.
Recovery: Enter the data from the keyboard. If
W DATA ERR
occurs during a
WNDDTX
operation, enter
from the keyboard all data beginning with the data in the line that will not read. ( Refer to
W CKSUM ERR
information for the correct procedure.)
W: NO ROOM
PACKING
TRY AGAIN Memory Filled. There is insufficient space in memory to load the current line of program instructions or
key reassignments.
Recovery: Create more space in memory, then rescan the program from the beginning, or resume your key
assignment operations.
W: SEQ ERR Checksum error. Occurs only if you bypass a row of program bar code using
SST
, then scan a row other
than the row indicated in the display by
W RDY nn.
Recovery: Scan the row indicated by
W RDY nn.
W: TYPE ERR
Type error. An unexpected type of barcode has been scanned.
Recovery: Complete or terminate the previous operation before proceeding to the new type.