Printronix P9012 Maintenance Manual page 251

L
Left side panel, replacing, 6–4
Limit switches, power stacker, replacing, A–8
Logic backplane, replacing, 6–94
Logic cable, power stacker, replacing, A–14
M
Magnetic pickup
operation, 2–28
replacing, 6–42
Magnetic pickup gap, adjusting, 5–20
Magnetic pickup phasing, adjusting, 5–22
Maintenance, preventive, 3–2
Manual conventions, 1–2
Matrix printing, description, 2–3
MCU
block diagram, 2–20
operation, 2–18
MCU PCBA, replacing, 6–72
Mechanical controls, 1–10
Mechanism driver
block diagram, 2–24
operation, 2–22
Mechanism driver PCBA, replacing, 6–72
Motor, power stacker, replacing, A–6
Motor, replacing
paper feed, 6–56
ribbon drive, 6–14
shuttle, 6–44
N
NOVRAM * fault message, 4–6
O
Operation
control panel, 2–12
DCU, 2–14
hammer bank and shuttle, 2–28
hammer driver, 2–25
magnetic pickup, 2–28
MCU, 2–18
mechanism driver, 2–22
paper feed control, 2–34
paper out switch, 2–36
platen open switch, 2–36
power supply, 2–30
ribbon deck, 2–32
P
Panel, control, replacing, 6–6
Panel, left side, replacing, 6–4
Panel, right side, replacing, 6–4
Paper feed belt
adjusting, 5–26
replacing, 6–52
Paper feed control
block diagram, 2–34
operation, 2–34
Paper feed motor, replacing, 6–56
Paper ironer, replacing, 6–50
PAPER JAM fault message, 4–7
Paper motion sensor
adjusting, 5–28
replacing, 6–62
Paper out detector, adjusting, 5–32
PAPER OUT fault message, 4–8
Paper out switch
operation, 2–36
replacing, 6–66
Index–3