Read Sharp AR-M550 (serv.man12) Service Manual online
AR-M550/M620 DETAILS OF EACH SECTION 6 - 64
[Toner hopper and toner bottle section]
A. Outline
Adoption of the rotating toner bottle enables large capacity with a com-
pact toner bottle size.
pact toner bottle size.
When the remaining toner detection sensor in the toner hopper unit
detects no toner, the toner bottle turns to supply toner to the toner hop-
per. Following supply, since the sensor detects full or empty status
inside the toner hopper based on a standard quantity of approximately
150 g of toner, even if the toner cartridge becomes empty, copying is
not immediately suspended because toner inside the toner hopper is
used (approximately 5K/6% print duty documents).
detects no toner, the toner bottle turns to supply toner to the toner hop-
per. Following supply, since the sensor detects full or empty status
inside the toner hopper based on a standard quantity of approximately
150 g of toner, even if the toner cartridge becomes empty, copying is
not immediately suspended because toner inside the toner hopper is
used (approximately 5K/6% print duty documents).
The employment of new toner has reduced the toner consumption per
page by 20 -30%.
page by 20 -30%.
8
Transfer roller
Applies a voltage to transfer toner from the OPC drum to paper.
9
Drum separation pawl
Separates paper from the OPC drum mechanically.
10
Cleaning blade
The protection circuit to prevent against electric leak of high voltage through the paper guide when the
humidity is high. 200 Ohm each.
humidity is high. 200 Ohm each.
11
Resist roller
Deflects paper to adjust the paper feed timing to the process section.
12
Paper dust cleaner
Remove paper dust from the resist roller to reduce paper dust entry to the process section.
No.
Name
Functions
Destination
Toner filling amount
Life with 6% print duty
documents
Except Japan
1,430g
72,000 sheets
Japan
Provisionally 1,180g
50,000 sheets or more
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