21-7.New Fusing-Related Parts Detection - Minolta CF1501 Service Manual

21-6. Fusing Web Near Empty and Empty Detection
1. Fusing Web Near Empty
• A web near-empty condition is detected if either of the following two events, whichever
occurs earlier, occurs.
Detection Timing
• The Master Board detects a web near-empty condition when the Near-Empty Lever con-
tacts the Web Roller.
Web Full
Web Take-Up Roller
2. Fusing Web Empty
• A web empty condition is detected when a given number of copies are made after a
near-empty condition has been detected.
A given number of copies Corresponds to "1,000" on "Fusing Web Unit" counter
21-7. New Fusing-Related Parts Detection
• The copier detects a new Fusing Unit, Web, and Oil Coating Roller.
Fusing Unit
Web
Oil Coating Roller
• The corresponding counter (of "Life" under "Tech. Rep. Mode") is automatically reset.
"Life" of "Tech. Rep. Mode":
"Fusing Web Unit" counter reads 16,000.
Detected by the Near-Empty Lever (See below.)
Near-Empty Lever
Web Roller
Web
"Life" Counter of "Tech. Rep. Mode"
New Part Detection Timing
Power Switch is ON.
Fusing Door is opened and closed.
M-93
Web Near-Empty
PWB-I
Near-empty con-
dition detected
4004M599AA
DC5 V