Printronix P9012, Maintenance Manual

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C–5 Mnemonics
NTOF Top of Form . . . . . . . . . . . . .
NTXSTB DMA Transmit Data Strobe . . . . . . . . . .
NUD Upper Hammer Drive . . . . . . . . . . . . . .
NUDTOSPD Shuttle Up to Speed . . . . . . .
OD Over Drive . . . . . . . . . . . . . . .
OE Output Enable . . . . . . . . . . . . . . .
OVEREN Overrun Detect Enable . . . . . . . . . .
P1–P8 Data 1 to 8 . . . . . . . . . . . . .
PAPIN Paper Instruction Detected (Parallel) . . . . . . . . . . . .
PAREN Parity Check Detect Enable . . . . . . . . . . . .
PARER Parity Error Detected (Parallel) . . . . . . . . . . . .
PARXFER Parallel DMA Data Transfer . . . . . . . . .
PB Parity Bit . . . . . . . . . . . . . . .
PBE Parity Bit Error . . . . . . . . . . . . . .
PDATA Front Panel Data . . . . . . . . . . . .
PE Printer Error . . . . . . . . . . . . . . . .
PF1,2 Paper Feed 1, 2 . . . . . . . . . . . . .
PF1,2 CHOP Chop for Paper Feed 1,2 . . . . . . .
PFM1–4 Paper Feed Motor 1 to 4 . . . . . . . . . . .
PI Paper Instruction . . . . . . . . . . . . . . . .
PIEN Paper Instruction Detect Enable . . . . . . . . . . . . .
PM1–4 Paper Motion 1 to 4 . . . . . . . . . . . .
PMD Paper Motion Detect . . . . . . . . . . . . . .
PMDA,C,K Paper Motion Detector A, C, K . . . . . . . .
POFLTRET Paper Out/Platen Open Fault Return . . . . . . . .
PPF RAMP Ramp for Paper Feed . . . . . . . .
PUF,G Pull Up F, G . . . . . . . . . . . .
REGSEL Select LCD Register . . . . . . . . . .
REVCHNL Reverse Channel . . . . . . . .
RIBSW1,2 Ribbon Switch 1 & 2 . . . . . . . . .
,– Right Ribbon Motor + & – . . . . . .
RTS Request to Send . . . . . . . . . . . . . .
RXCLK Receive Clock . . . . . . . . . . .
RXDATA Receive Data . . . . . . . . . .
SDIR Sense Direction . . . . . . . . . . . . .