Brother Laserprinter Hl 1435 User Guide

							6 - 4   TROUBLESHOOTING
Paper handling 
First, make sure that you are using paper that meets Brother recommended paper specifications. See 
What kind of paper can I use? on page 1-5.
Problem Recommendation
The printer does not feed 
paper from the tray1.■The paper tray may be out of paper or not properly installed. If it is empty, put 
a new stack of paper in the paper tray. 
■If there is paper in the paper tray, make sure it is straight. If the paper is curled, 
you should straighten it before printing. Sometimes it is helpful to remove the 
paper, turn the stack over and put it back in the paper tray.
■Reduce the amount of paper in the paper tray, and then try again.
■Check that manual feed mode is not selected in the printer driver.
The printer does not feed 
paper from the manual feed 
slot.■Re-insert the paper firmly, one sheet at a time.
■Make sure that manual feed mode is selected in the printer driver.
The printer will not feed 
envelopes.■The printer can feed envelopes from the manual feed slot. Your application 
software must be set up correctly to print on the envelope size you are using. 
This is usually done in the page setup or document setup menu of your 
software. Please see your software application manual.
A paper jam has occurred.■Clear the jammed paper. Please see Paper jams and how to clear them or the 
paper jam instructional video on the CD-ROM.
The printer does not print to 
the top output tray.■Close the rear cover.
The printer does not print on 
the specified paper.■Make sure that the cable is connected to the printer.
■Make sure that the appropriate printer driver is selected. 
						

							TROUBLESHOOTING   6 - 5
Paper jams and how to clear them
When a paper jam occurs, the printer indicates it by lighting the control panel LEDs as shown below.
Figure 6-1
Clear the jammed paper as follows. 
If the jammed paper is removed completely by using the information in the following steps, you can install 
the paper tray first, and then close the front cover and the printer will resume printing automatically. 
If the printer does not start printing automatically, press the Control panel button. If the printer still does 
not start printing, please check that all the jammed paper has been removed from the printer. Then try 
printing again. 
After you have just used the printer, some parts inside the printer are extremely hot. When you 
open the front cover or rear cover of the printer, never touch the shaded parts shown in Figure 6-2.
Figure 6-2
■Always remove all paper from the paper tray and straighten the stack when you add new paper. 
This helps prevent multiple sheets of paper from feeding through the printer at one time and 
reduces paper jams.
Ready
AlarmPaper
Toner
Data
Drum
HOT! 
						

							6 - 6   TROUBLESHOOTING
1Pull the paper tray completely out of the printer. 
Figure 6-3
2Pull the jammed paper up and out of the printer.
Figure 6-4
3Open the front cover. 
						

							TROUBLESHOOTING   6 - 7
4Pull out the drum unit assembly. Pull the jammed paper up and out of the printer. If you cannot 
remove the drum unit assembly easily at this time, do not use extra force. Instead, pull the edge of 
the jammed paper from the paper tray.
Figure 6-5
Caution
To prevent damage to the printer caused by static electricity, do not touch the electrodes shown in 
Figure 6-6.
Figure 6-6 
						

							6 - 8   TROUBLESHOOTING
5Open the rear cover. Pull the jammed paper out of the fuser unit. 
Figure 6-7
Caution
After you have just used the printer, some internal parts of the printer are extremely hot! Wait for the 
printer to cool down before you touch the internal parts of the printer.
Figure 6-8
6Close the rear cover.
If you have to pull the paper toward the back of the printer, the fuser may get dirty with toner powder 
and it may scatter on the next printouts. Print a few copies of the test page until the scattering of 
toner stops.
HOT! 
						

							TROUBLESHOOTING   6 - 9
7Push the lock lever down and take the toner cartridge out of the drum unit assembly. Take out the 
jammed paper if there is any inside the drum unit.
Figure 6-9
8Put the drum unit assembly back in the printer. 
9Put the paper tray in the printer.
10Close the front cover. 
						

							6 - 10   TROUBLESHOOTING
Other problems
For Macintosh® with USB
Improving the print quality
This section provides information on the following topics: Problem Recommendation
The printer cannot print. There 
was an error writing to 
LPT1: (or BRUSB) for the 
printer error message occurs 
on your PC.■Check that the printer cable is not damaged or broken. 
■If you have an interface-switching device, make sure the correct printer is 
selected.
Problem Recommendation
HL-1435 does not appear in 
Chooser.■Check that the printer is turned on.
■Check that the USB interface cable is connected correctly.
■Check the printer driver is installed correctly.
Unable to print from 
application software.■Make sure that the supplied Macintosh
® printer driver is installed in the 
System Folder and that it is selected with Chooser.
Examples of poor print 
qualityRecommendation
Faint■Check the printer’s environment. Conditions such as humidity, high 
temperatures, and so on may cause this print fault. See Positioning the printer 
in Chapter 1.
■If the whole page is too light, Toner Save mode may be on. Turn off Toner 
Save mode in the printer Properties tab of the driver.
■Try installing a new toner cartridge. See Replacing the toner cartridge on 
page 5-3.
■Try installing a new drum unit. See Replacing the drum unit on page 5-9.
Gray background■Make sure that you use paper that meets the recommended specifications. 
See What kind of paper can I use? on page 1-5.
■Check the printer’s environment - high temperatures and high humidity can 
increase the amount of background shading. See Positioning the printer on 
page 1-4.
■Use a new toner cartridge. See Replacing the toner cartridge on page 5-3.
■Use a new drum unit. See Replacing the drum unit on page 5-9.
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
CDEF
d
efg
BC
b
cd
23
ABCDEFGH
abcdefghijk
ABCD
abcde
01234 
						

							TROUBLESHOOTING   6 - 11
Ghost■Make sure you use paper that meets our specifications. Rough-surfaced 
paper or thick print media may cause this problem. See What kind of paper 
can I use? on page 1-5.
■Make sure that you choose the appropriate media type in the printer driver. 
See What kind of paper can I use? on page 1-5.
■Try using a new drum unit. See Replacing the drum unit on page 5-9.
Toner specks■Make sure that you use paper that meets our specifications. Rough-surfaced 
paper may cause the problem. See What kind of paper can I use? on page 
1-5.
■The drum unit may be damaged. Put in a new drum unit. See Replacing the 
drum unit on page 5-9.
Hollow print■Make sure that you use paper that meets our specifications. See What kind 
of paper can I use? on page 1-5.
■Choose Thick paper mode in the printer driver, or use thinner paper than you 
are currently using.
■Check the printer’s environment because conditions such as high humidity 
can cause hollow print. See Positioning the printer on page 1-4.
All black■You may clear the problem by cleaning the primary corona wire inside the 
drum unit by sliding the blue tab. Make sure you return the blue tab to the 
home position (▲). See Cleaning on page 5-12.
■The drum unit may be damaged. Put in a new drum unit. See Replacing the 
drum unit on page 5-9.
Examples of poor print 
qualityRecommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234 
						

							6 - 12   TROUBLESHOOTING
White Spots on black text 
and graphics at 94 mm 
(3.7 in.) intervals
Black Spots at 94 mm 
(3.7 in.) intervals■If the problem is not solved after printing a few pages, the drum unit may have 
glue from label stock on the OPC drum surface.
Clean the drum unit as follows:
1Position the print sample in front of the drum unit, and find the exact position 
of the poor print.
2Turn the drum unit gear by hand while looking at the surface of the OPC 
drum.
3When you find the mark on the drum that matches the print sample, wipe the 
surface of the OPC drum with a cotton swab until the dust or paper powder 
on the surface comes off.
Caution
Do not try to clean the surface of the photosensitive drum with a sharp 
object, such as a ball-point pen.
■The drum unit may be damaged. Put in a new drum unit. See Replacing the 
drum unit on page 5-9.
Examples of poor print 
qualityRecommendation
94 mm
(3.7 in.)
94 mm
(3.7 in.)
94 mm
(3.7 in.)
94 mm
(3.7 in.) 
						

							TROUBLESHOOTING   6 - 13
Black toner marks across 
the page■The drum unit may be damaged. Put in a new drum unit. See Replacing the 
drum unit on page 5-9.
■Make sure that you use paper that meets our specifications. See What kind 
of paper can I use? on page 1-5.
■If you use label sheets, the glue from the sheets may sometimes stick to 
the OPC drum surface. Clean the drum unit. See Cleaning on page 5-12. 
■Do not use paper that has clips or staples because they will scratch the 
surface of the drum.
■If the unpacked drum unit is in direct sunlight or room light, the unit may be 
damaged.
White lines across the page■Make sure that you use paper that meets our specifications. A rough surfaced 
paper or thick print media can cause the problem.
■Make sure that you select the appropriate media type in the printer driver. 
■The problem may disappear by itself. Try printing multiple pages to clear this 
problem, especially if the printer has not been used for a long time.
■The drum unit may be damaged. Put in a new drum unit. See Replacing the 
drum unit on page 5-9.
Lines across the page■Clean the inside of the printer and the primary corona wire in the drum unit. 
See Cleaning on page 5-12.
■The drum unit may be damaged. Put in a new drum unit. See Replacing the 
drum unit on page 5-9.
Black lines down the page
Printed pages have toner 
stains down the page.■Clean the primary corona wire of the drum unit. See Cleaning on page 5-12.
■Make sure the primary corona wire cleaner is at the home position (▲). 
■The drum unit may be damaged. Install a new drum unit. See Replacing the 
drum unit on page 5-9.
■The toner cartridge may be damaged. Put in a new toner cartridge. See 
Replacing the toner cartridge on page 5-3. Make sure that a torn piece of 
paper is not inside the printer covering the scanner window.
■The fixing unit may be smudged. Call Customer Service.
Examples of poor print 
qualityRecommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234