Rap 22 Paper Size Error; Rap 23 Low Toner Sensor Failure - Xerox DocuPrint N2125 Service Manual

RAP 22 Paper Size Error

There is a conflict between the size of paper the printer senses and the size of paper that is
actually loaded.
Procedure
The problem appears when using Tray 1, 2, or 3.
Y N
Verify the size of paper currently in the MBF Tray. Enter the User Menus, select Tray
Menu, then select MBF Size. The paper size displayed on the LCD matches the size
actually in the MBF.
Y N
Set MBF size to the size of paper actually installed, then press Enter.
Replace the Print Engine Controller PWB
The paper size in the problem tray is within printer specifications.
Y N
Replace with paper that meets specifications.
Check the side guides and the Paper Stack End Guide in the problem tray. All
properly set for the size of paper installed.
Y N
Properly set the guides.
Check the size cam on the left side of the paper tray
tion (not broken) and move freely as the paper tray end guide is moved.
Y N
Replace the paper tray (PL 2.1/PL
Reinstall the paper tray. Enter Diagnostics and select Component Test. Scroll to Paper Tray
Size Reading and press Enter to display MBF size. Press Enter repeatedly to scroll through
each of the paper trays. The paper size displayed on the LCD matches the size of the
paper actually loaded.
Y N
Replace the Tray Size PWB (REP 3.13/REP
Replace the Print Engine Controller PWB
Table 1 Paper Size Actuators
Actuator Cam B5
Extended SEF
Top X
Middle
Bottom
Forward Cam
Status Indicator Repair Analysis Procedures
RAP 22 , RAP 23
(REP 9.3).
(Table 1). The cams are in good condi-
11.1).
11.19).
(REP 9.3).
A5 13" 14" 8.5" A4
SEF SEF SEF SEF SEF
X
X X X
X X X
X

RAP 23 Low Toner Sensor Failure

Low Toner is not displayed when the Print Cartridge appears to be empty.
Procedure
Run a Test Print. Inspect the print quality. The print is light.
Y N
Return to Initial Actions.
Replace the Print Cartridge
inspect the print quality. The print quality meets specifications.
Y N
Go to IQ RAP 1.
Open the Front Cover and cheat the Front Cover Interlock. Enter Diagnostics and select Com-
ponent Test. Scroll to Sensor Input and press Enter [4]. Hold the Print Cartridge in position
while you carefully push down then release the Toner Sensor. The number on the LCD incre-
ments each time you pull down and release the Toner Sensor.
Y N
Switch the printer power off. Remove the Front Cover
guides are
(REP 1.7). Cheat the Front Cover Interlock Switch. Switch the printer power on. On the
connector PWB, check the voltage between P/J42 pin 4 and frame ground. The voltage
is 0.0VDC with the print cartridge installed and 3.3VDC with the print cartridge
removed.
Y N
Check the voltage between P/J42 pin 3 and pin 1. The voltage is 24VDC.
Y N
On the Connector PWB, check the voltage between P/J231 pin 11 and pin 12.
The voltage is 24VDC.
Y N
Check the Connector Harness Assembly. If OK, replace the Print Engine
Controller PWB
Replace the Connector PWB
Replace the Toner Sensor
On the connector PWB, check the voltage between P/J231 pin 9 and frame ground. The
voltage is 0.0VDC with the print cartridge installed and 3.3VDC with the print car-
tridge removed.
Y N
Replace the Connector PWB
Check the Connector Harness Assembly. If OK, replace the Print Engine Controller PWB
(REP 9.3).
Replace the Print Engine Controller PWB
02/2000
2-26
(PL 8.1). Run 5 test prints (Config Sheet or Demo Page) and
(REP 1.6) and the Left Front Cover
(REP 9.3).
(REP 9.7).
(REP 5.2).
(REP 9.7).
(REP 9.3).
Initial Issue
DocuPrint N2125