IBM 5150 Hardware Maintenance Manual page 165

Error
Description Diagnostic Action
False End­
of-Forms
Alarm
1. Is No Paper light off?
YES: Go to step 2.
NO: Are forms inserted properly?
YES:
Go to page 1400-23, "Printing
Continues Beyond End-of-
Forms."
NO: Insert forms properly.
2. Power printer off. Power on.
Is alarm still sounding?
YES:
Measure for+10.5 to 12.5 Vdc on
pin 1 of control panel (see Section 5,
"Locations").
12 Vdc?
YES: Replace both Control cards
(see Section 3, "Removal/
Replacement").
NO:
Replace Control Panel (see
Section 3, "Removal/
Replacement").
NO:
Run Offline Diagnostic Test (see page
1400-33).
Does alarm sound?
YES:
Replace Print Mechanism
assembly (see Section 3,
"Removal/Replacement").
NO: Go to page 1400-1, "Printer
Entry," if printer failure
still suspected.
1400-24