Operator`s manual

Table 5–2: Diagnostic Fault Codes
Printer Displays Fault
– No Fault
[ 0 2 0] SMSM Lithium Battery (BT1) (see Table 7.2)
[ 0 2 2] SMIM 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, 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 DMA (includes U37, U38, U42, U43,
U50-U54)
[ I n F] No operational interface found
[ 4 2 0] SMIM Lithium Battery (BT1) (see Table 7.2)
[ 4 4 0] SMIM RAM (U19-U22) circuit chip (2K or 8K)
may be located in sockets U19-U22
[ 4 9 0] SMMC Shuttle Motor Drive
[ 4 9 1] SMMC Shuttle Frequency out of range
[ 4 9 2] SMIH Imaging Hardware failure SMMC, LVT,
Shuttle Motor
[ 4 9 3] SMMC or SMIH board (no shuttle interrupt)
[ 4 9 4] No INT signal available to cause paper motion
[ 7 0 0] SMIM failure (Image Processor)
[ R c X] SMIM image processor timer chip (8253 in
U13)
5–4 PRINTER DIAGNOSTICS