Lexmark C734 User Manual

2-128 Service Manual
5026
Operator panel service check
One or more operator panel buttons fail
Operator panel display blank, five beeps, and LED is off
Service tip: The printer has detected a problem with the system board, the operator panel assembly cable (part
of the top cover access assembly), or the operator panel assembly if POST does not complete. The printer emits
five beeps, and then sticks in a continuous pattern until the printer is turned off.
Operator panel display blank, five beeps, LED on
Service tip: The printer has detected a problem with the system board, the operator panel assembly cable (part
of the top cover access assembly), or the operator panel assembly if POST does not complete. The printer emits
five beeps, and then sticks in a continuous pattern until the printer is turned off.
Step Questions / actions Yes No
1 Run the Button Test. See“Button Test” on
page 3-12 in Diagnostics mode.
Did any of the buttons fail the test?
Replace the operator panel
assembly. See “Operator
panel assembly removal”
on page 4-24.
Go to step 2.
2
Disconnect the operator panel assembly
cable from JOPP1 on the system board, and
then measure the voltage on pin 6 and
ground.
Does the voltage measure approximately
+3.3 V dc?
Replace the operator panel
assembly. See “Operator
panel assembly removal”
on page 4-24. If this does
not fix the problem, replace
the top cover access
assembly. See “Top
access cover assembly
removal” on page 4-40.
Replace the system board.
See “System board
removal” on page 4-139.
Step Questions / actions Yes No
1 Is the operator panel assembly cable properly
installed at system board JOPP1 and at the
operator panel assembly?
Go to step 2. Reinstall the cable.
2
Measure the voltage between JOPP1 pin 2
and ground on the system board.
Is the voltage approximately +5 V dc?
Go to step 3. Replace the system board.
See “System board
removal” on page 4-139.
3
Check continuity of the operator panel
assembly cable.
Is there continuity?
Replace the operator panel
assembly. See “Operator
panel assembly removal”
on page 4-24.
Replace the top cover
access assembly. See
“Top access cover
assembly removal” on
page 4-40.
Step Questions / actions Yes No
1 Check for ground between JOPP1 pin 4 and
ground.
Is the voltage approximately 0 V dc?
Replace the operator panel
assembly. See “Operator
panel assembly removal”
on page 4-24.
Go to step 2.
2
Check the operator panel assembly cable.
Is the cable damaged?
Replace the top cover
access assembly. See
“Top access cover
assembly removal” on
page 4-40.
Replace the system board.
See “System board
removal” on page 4-139.

Lexmark C734 Specifications

General

Color	Yes
Print technology	Laser
Time to first page (black, normal)	9.5 s
Print speed (black, normal quality, A4/US Letter)	- ppm
Print speed (color, normal quality, A4/US Letter)	28 ppm
Duplex print speed (black, normal quality, A4/US Letter)	20 ppm
Duplex print speed (color, normal quality, A4/US Letter)	19 ppm
Wi-Fi	No
Security algorithms	802.1x RADIUS, EAP-TLS, EAP-TTLS, LEAP, MD5, PEAP
Printing colors	Black, Cyan, Magenta, Yellow
Maximum duty cycle	85000 pages per month
Recommended duty cycle	9200 pages per month
Number of print cartridges	4
Page description languages	Microsoft XPS, PCL 5c, PCL 6, PostScript 3, PPDS, XHTML
Start-up time	0 s
Processor frequency	600 MHz
Maximum internal memory	1280 MB
Sound power level (standby)	33 dB
Sound pressure level (printing)	54 dB
Display	LCD
Certification	Energy Star, Blue Angel (RAL-UZ-122), CAN/CSA-C22.2 60950-1, CSA E60825-1, ICES-003 B, BSMI B, VCCI B, US FDA, FCC B, UL 60950-1, EN/IEC 60320-1, CE B, CB IEC 60950-1, EN 60950-1, EN/IEC 61000-3, EN 55022 B, EN 55024, EN/IEC 60825-1, GS (TÜV), AR S (TÜV), SMA C-tick mark B, CCC B, CISPIR 22 B, MIC Mark, EK Mark
Product color	White
Total input capacity	1200 sheets
Total output capacity	300 sheets
Maximum input capacity	3750 sheets
Total number of input trays	3
Multi-Purpose tray input capacity	100 sheets
Envelopes sizes	7 3/4, 9, 10, B5, C5, DL
Maximum print size	210 x 297 mm
Paper tray media types	Card stock, Envelopes, Glossy paper, Labels, Plain paper, Transparencies
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Letter (media size), Oficio (media size), Statement (140 x 216mm), Legal (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Standard interfaces	Ethernet, USB 2.0
USB 2.0 ports quantity	2
Number of SATA III connectors	0
Dimensions (WxDxH)	435 x 545 x 576 mm
Other operating systems supported	Novell NetWare 5.x, Novell NetWare 6.x
Server operating systems supported	Windows 2000 Server, Windows Server 2003, Windows Server 2008, Windows Server 2008 R2
Power consumption (printing)	- W
Package weight	30800 g
Sustainability certificates	ENERGY STAR
Operating altitude	0 - 3048 m
Operating temperature (T-T)	16 - 32 °C
Operating relative humidity (H-H)	8 - 80 %
Keyboard layout	AZERTY
Pointing device	Clickpad
Recovery operating system	Windows 10
Operating system architecture	32-bit
Optional operating system supplied	Windows 10 Education
Optional operating system installed	Android 5.1
Scalability	1S
Processor package size	0 mm
Graphics & IMC lithography	0 nm
Intel® Turbo Boost Technology	1.0
Thermal solution specification	PCA 2013D
Optical drive type	Blu-Ray DVD Combo
CD read speed	0 x
Docking station power connector	24-pin
Docking station graphics card model	AMD Radeon HD R9 290
Docking station connecting interface	Lenovo OneLink
Docking station audio output channels	2.0
Docking station graphics card memory type	GDDR5
Docking station graphics card manufacturer	PNY