Operator`s manual

[ P o ] Paper out. The paper supply has run out.
[ P r o] Program. The printer is in Program mode.
[ r c o] Ribbon cartridge out.
[ S b o] Striker bar open.
[ S d r] Shuttle motor driver. Shuttle motor driver interference to paper
stuck or paper gap too small.
[ S L o] Slow printing. This display flashes while the print rate is
reduced by the thermal throttle.
[. S U ] Printer enters initialization mode.
[ S U S] Suspended print.
[.S i 9] Prints short segments of various test patterns or executes a form
feed.
[.U t P] Vertical timing pattern.
[ 0 2 0] SMSM Lithium Battery (BT1) (see Table 7.2).
[ 0 2 2] SMSM has insufficient RAM.
[ 0 4 X] SMSM RAM, display indicates chip number at fault. For U41,
X=1; for U42, X=2, and so forth.
[ 0 5 0] SMSM memory failed to switch (U9-U13, U18-U25, U32-U35,
U42).
[ 0 5 5] SMSM switchable RAM failure (PD4016C-2 in U11 and U21).
[ 0 6 0] SMSM 7.5 interrupt failure (Timer at U30 to CPU at U3 circuit.
[ 0 8 0] SMSM IMA (includes U37, U38, U42, U43, U50-U54).
[ 1 0 0] Missing TOF code in EVFU load sequence.
[ 1 0 2] Invalid characters in EVFU load sequence.
[ 1 0 3] EVFU table length exceeded.
[ 1 0 4] ANSI EVFU load multiple TOFs sensed.
[ 4 2 0] SMIM Lithium Battery (BT1) (see Table 7.2).
[ 4 4 0] SMIM RAM (U19-U22) SMIM RAM circuit chip (2K or 8K) may
be located in sockets U19-U22 only.
LED DISPLAY LIST A–3